PMSM and BLDC Sensorless Motor Control using the 56F8013 Device Designer Reference Manual 56800E 16-bit Digital Signal Controllers DRM077 Rev 0 11/2005 freescale.com PMSM and BLDC Demonstration using the 56F8013 Device Designer Reference Manual To provide the most up-to-date information, the revision of our documents on the World Wide Web will be the most current. Your printed copy may be an earlier revision. To verify that you have the latest information available, refer to http://www.freescale.com The following revision history table summarizes changes contained in this document. For your convenience, the page number designators have been linked to the appropriate location. Revision History Date Revision Level 11/2005 0 Description Initial release Page Number(s) N/A TABLE OF CONTENTS Chapter 1 Introduction 1.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Chapter 2 Benefits and Features of the 56F8013 Controller 2.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Chapter 3 Motor Drive System 3.1 3.2 3.3 3.3.1 3.3.2 3.4 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Motor Drive System Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction to System Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hardware Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Software Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specification and Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-1 3-2 3-2 3-5 3-6 Chapter 4 PMSM Theory 4.1 4.2 4.3 Permanent Magnet Synchronous Motor (PMSM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 PMSM Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Digital Control of a Permanent Magnetic Synchronous Motor . . . . . . . . . . . . . . . . . . . 4-2 Chapter 5 Design Concept of a PMSM Vector Control Drive and BLDC Control Drive 5.1 5.2 5.3 5.4 5.5 5.6 PMSM Vector Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Procedure for Sliding Mode Observer (SMO). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Forward and Inverse Clarke Transformation (a,b,c to á,â and backwards) . . . . . . . . . Forward and Inverse Park Transformation (á, â to d-q and backwards) . . . . . . . . . . . Rotor Speed Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Speed Regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5-4 5-5 5-6 5-6 5-7 Table of Contents, Rev. 0 Freescale Semiconductor Preliminary i 5.7 PFC Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7 5.7.1 Inductor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 5.7.2 Output Capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 5.7.3 Main Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 5.7.4 Output Diode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 5.7.5 Inductor Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10 Chapter 6 Hardware Implementation 6.1 6.2 6.3 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.4 6.5 6.5.1 6.5.2 6.6 56F8013 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . High-Voltage Power Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sensor Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DCBus Voltage Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DCBus Current Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phase Current Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Phase Voltage Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supply Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PFC Hardware Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drive Circuit Hardware Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sample Circuit Hardware Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Detailed Motherboard Configurations for ACIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 6-3 6-4 6-4 6-4 6-5 6-5 6-5 6-5 6-6 6-7 6-7 6-8 Chapter 7 Software Design 7.1 7.2 7.3 7.4 7.5 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rotor Speed Estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Space Vector Pulse Width Modulation (SVPWM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fault Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PFC Software Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 7-8 7-8 7-8 7-8 Chapter 8 JTAG Simulation and SCI Communication 8.1 8.2 JTAG Simulation Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 SCI Communication Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 ii Freescale Semiconductor Preliminary Chapter 9 Operation 9.1 9.2 9.3 9.4 Switch-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . During Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Switch-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 9-1 9-1 9-1 Table of Contents, Rev. 0 Freescale Semiconductor Preliminary iii PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 iv Freescale Semiconductor Preliminary LIST OF FIGURES 3-1 3-2 4-1 4-2 5-1 5-2 5-3 5-4 5-5 5-6 6-1 6-2 6-3 6-4 6-5 6-6 6-7 6-8 6-9 6-10 6-11 6-12 7-1 7-2 7-3 7-4 7-5 7-6 7-7 7-8 8-1 8-2 8-3 8-4 8-5 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 IRAMS10UP60A Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Pulse Width Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 PMSM System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Stator Reference Voltage, Vref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 BLDC Sensorless Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Clarke Transformation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Park Transformation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 PFC Configuration Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Demonstration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Hierarchy Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 Motor Control System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 DCBus Sampling Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4 Bus Link Current Sample Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4 Methods to Detect Phase Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 Protection Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 Main PFC Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6 PFC Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 PFC Sampling Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 PMSM Jumper Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 BLDC Jumper Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9 PMSM Block Diagram (Part 1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 PMSM Block Diagram (Part 2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 PMSM Block Diagram (Part 3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4 BLDC Block Diagram (Part 1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5 BLDC Block Diagram (Part 2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6 BLDC Block Diagram (Part 3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7 Simple PFC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9 Discrete Voltage Loop Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10 Communication Board’s Frame Figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 Connections for JTAG Simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 CodeWarrior Development Tool Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3 SCI Communication Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 List of Figures, Rev. 0 Freescale Semiconductor Preliminary v PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 vi Freescale Semiconductor Preliminary LIST OF TABLES 6-1 Configuration of the 56F8013’s Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9 List of Tables, Rev. 0 Freescale Semiconductor Preliminary vii PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 viii Freescale Semiconductor Preliminary About This Document This manual describes the use of a 56F8013 device in a Permanent Magnet Synchronous Motor (PMSM) and Brushless DC (BLDC) motor demonstration. Audience This manual targets design engineers interested in developing a PMSM vector control and BLDC control drive application. Organization This User’s Manual consists of the following sections: • Chapter 1, Introduction, explains how a PMSM, a BLDC and a 56F8013 device facilitate a vector control drive design. • Chapter 2, Benefits and Features of the 56F8013 Controller, highlights the advantages in using a 56F8013 controller. • Chapter 3, Motor Drive System, details the features and design of a motor drive system. • Chapter 4, PMSM Theory, describes software, control and configuration of an Permanent Magnet Synchronous Motor. • Chapter 5, Design Concept of a PMSM Vector Control Drive and BLDC Control Drive, details the design concept of PMSM and BLDC drives. • Chapter 6, Hardware Implementation, describes how to set up the hardware needed for the PMSM and BLDC demonstration application. • Chapter 7, Software Design, explains the software system design. • Chapter 8, JTAG Simulation and SCI Communication, describes the application’s debugging and communications functions. • Chapter 9, Operation, explains how to use the application. • Appendix A, Schematics, contains schematics for the PMSM and BLDC demonstration application. • Appendix B, PMSM and BLDC Demonstration Bill of Materials, lists all parts used in the application. Preface, Rev. 0 Freescale Semiconductor Preliminary ix Conventions This document uses the following notational conventions: Typeface, Symbol or Term Meaning Examples Courier Monospaced Type Code examples //Process command for line flash Italic Directory names, project names, calls, functions, statements, procedures, routines, arguments, file names, applications, variables, directives, code snippets in text ...and contains these core directories: applications contains applications software... Bold Reference sources, paths, emphasis ...refer to the Targeting DSP56F83xx Platform manual.... ...see: C:\Program Files\Freescale\help\tutorials Blue Text Linkable on-line ...refer to Chapter 7, License.... Number Any number is considered a positive value, unless preceded by a minus symbol to signify a negative value 3V -10 DES-1 ALL CAPITAL LETTERS # defines/ defined constants # define INCLUDE_STACK_CHECK Brackets [...] Function keys ...by pressing function key [F7] Quotation marks, “...” Returned messages ...the message, “Test Passed” is displayed.... ...CodeWarrior project, 3des.mcp is... ...the pConfig argument.... ...defined in the C header file, aec.h.... ...if unsuccessful for any reason, it will return “NULL”... PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 x Freescale Semiconductor Preliminary Definitions, Acronyms, and Abbreviations The following list defines the acronyms and abbreviations used in this document. As this template develops, this list will be generated from the document. As we develop more group resources, these acronyms will be easily defined from a common acronym dictionary. Please note that while the acronyms are in solid caps, terms in the definition should be initial capped ONLY IF they are trademarked names or proper nouns. BLDC Brushless DC Motor ADC Analog-to-Digital Conversion COP Computer Operating Properly DCM Discontinuous Current Mode EMF Electro-Magnetic Force EVM Evaluation Module FOC Field-Oriented Control GPIO General Purpose Input/Output HMI Human Machine Interface I2C Inter-Integrated Circuit or I2C IC Integrated Circuit IGBT Insulated-Gate Bipolar Transistor IM Induction Motor IPM Integrated Power Module ISR Interrupt Service Routine LPF Low-Pass Filter PFC Power Factor Correction PI Proportional-Integral PLL Phase Locked Loop PMSM Permanent Magnet Synchronous Motor PWM Pulse Width Modulation or Modulator RMS Root Mean Square SCI Serial Communication Interface SMO Sliding Mode Observer SPI Serial Peripheral Interface SV Space Vector SVPWM Space Vector Pulse Width Modulation VCE Collector to Emitter Voltage Preface, Rev. 0 Freescale Semiconductor Preliminary xi PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 xii Freescale Semiconductor Preliminary Introduction Chapter 1 Introduction 1.1 Introduction This manual describes the design of a 3-phase Permanent Magnet Synchronous Motor (PMSM) sensorless vector control drive and a Brushless DC (BLDC) Motor drive without postiion encoder coupled to the motor shaft. It uses a Freescale 56F8013 with Processor ExpertTM (PE) software support. A PMSM consists of a magnetic rotor and wound stator construction. Its wound stators can rapidly dissipate heat to the motor housing and environment. In contrast, a brush motor traps the heat under a non-conductive air gap, resulting in greater efficiency and power density for the PMSM design and providing high torque-to-inertia ratios. A PMSM motor generates magnetic flux using permanent magnets in the rotors, which are driven by the stators applying a synchronous rotational field. On the other hand, the flux that is applied by the stators (the armature-reaction flux) generates torque most effectively when it is perpendicular to flux generated by the rotors. To maintain near-perpendicularity between stator flux and rotor flux, two control methods with position-speed feedback loop are popularly used for controlling a PMSM: Field-Oriented Control and Brushless DC Control. A PMSM abandons the excitation winding and the rotor turns at the same speed as the stator field. The PMSM’s design eliminates the rotor copper losses, giving very high peak efficiency compared with a traditional induction motor. The power-to-weight ratio of a PMSM is also higher than induction machines. Progress in the field of power electronics and microelectronics enables the application of PMSMs for high-performance drives, where, traditionally, only DC motors were applied. Thanks to sophisticated control methods, a PMSM offers the same control capabilities as high performance four-quadrant DC drives. A PMSM/BLDC is a excellent alternative in an appliance application. This application will employ sensorless Field-Oriented Control (FOC) to control a PMSM and a sensorless algorithm to control BLDC, using the 56F8013 device, which can accommodate the complicated sensorless FOC algorithm. The PMSM/BLDC drive system will meet the air conditioning and compressor requirements while it runs. The system demonstrates the features of the 56F8013 in motor control. The flexible Human Machine Interface (HMI) communicates between the control board and a PC and its simplified form, using the push buttons on the processor board, make the system easy to use. This drive application allows sensorless vector control of the PMSM and BLDC running in a dual closed-loop control without the speed/position sensor coupled to the shaft. This document describes the Freescale 56F8013 controller’s features, basic PMSM and BLDC theory, the system design concept, and hardware implementation and software design, including the PC master software visualization tool. Introduction, Rev. 0 Freescale Semiconductor Preliminary 1-1 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 1-2 Freescale Semiconductor Preliminary Features Chapter 2 Benefits and Features of the 56F8013 Controller The 56F8000 family of devices offers an excellent complement of peripherals and a broad range of memory and packages. 2.1 Features Some of the 56F8000 devices’ benefits include: • High-performance 56800E Core — Superior 16-bit, fixed-point signal processing performance provided by the bus architecture and the controller core — Excellent control and protocol processing capability and code density — Superior MCU control performance • Performance-leading Flash Memory — Unbeatable, field-proven reliability in the harshest environments — Features that enable emulation of EEPROM — Flexible, full in-circuit Flash programmability — Performance-enhancing interfacing and bus structure, enabling the superior signal processing capability from Flash — Flash security protection features for IP protection • Voltage Regulator and Power Supervisor — The chips come equipped with an on-board voltage regulator and power supervisor. When supplied with a 3.3V voltage, the chip creates all required internal voltages. — Includes features such as Power-On Reset (POR) and low-voltage detection, eliminating external components and saving system costs • On-chip Relaxation Oscillator — Some 56F8000 devices are equipped with a precision on-chip, factory-trimmed oscillator (0.25% of 8MHz), enabling the elimination of an external crystal and providing system cost savings • On-Chip Clock Synthesis (OCCS) — 56F8000 digital signal controllers are capable of using an external clock input — The OCCS capability includes a flexible, programmable Phase-Locked Loop (PLL), enabling selection of an exact operating frequency — The OCCS also includes unique loss-of-lock detection, allowing the detection of a cut crystal and the proper safety-critical shut down Benefits and Features of the 56F8013 Controller, Rev. 0 Freescale Semiconductor Preliminary 2-1 • 16-bit Timer — 56F8000 devices are equipped with powerful timer modules. Each timer module has four independent 16-bit timers that can be: — Cascaded — Used for input capture — Used to generate output waveforms — Used to trigger the ADC — Used to generate auxiliary PWM waveforms — Used as a Digital-to-Analog Converter (DAC) when utilized in conjunction with an external low-pass filter — Optionally synchronized together with a common start signal — Operated at rates up to 96Mhz • 3-Phase PWM Module — The high-performance 15-bit PWMs can be used in edge-aligned and center-aligned modes, as well as in complementary and independent modes, and have programable dead time generation — Excellent resolution, with a clock rate of up to 96Mhz — These PWM modules have a sophisticated set of programmable fault lines that do not require a system clock for proper operation — These and other features make these PWM modules industry leaders in safety, reliability, and performance — Enhanced features to support digital power conversion, power factor correction, lighting, and motor control — Hardware support for advanced phase-shifting PWM techniques • Analog-to-Digital Converter (ADC) Module — Each high-performance 12-bit ADC has two sample and hold circuits, enabling simultaneous or sequential conversion at a rate of up to 1.125s per conversion — ADCs can be used in single-ended or differential modes and have a sophisticated set of unique features, including: — Superior absolute accuracy — High/low and zero-crossing detection — Offset — ADCs can be triggered through variety of methods, including PWM synchronization — ADCs have a sophisticated set of standby and power down modes for improved low-power performance — The ADC’s two sample-and-holds circuits can be configured separately to enable two independent sampling rates or start triggers PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 2-2 Freescale Semiconductor Preliminary Features • Inter-Integrated Circuit (I2C) Serial Bus Interface — Compatible with I2C Bus standard — Features include: — Multi-master operation — Software programmable for one of 256 different serial clock frequencies — Arbitration-lost interrupt with automatic mode switching from master to slave — Calling-address identification interrupt • Serial Communication Interface (SCI) — This module operates as a full-duplex Universal Asynchronous Receiver Transmitter (UART) — Fully interrupt driven and programmable, providing a multitude of operating modes and baud rates • Serial Peripheral Interface (SPI) — This synchronous serial interface is double buffered — Operates in wide variety of modes, rates, and bit lengths, enabling the glueless connection to external peripherals and other processors at rates up to 16Mbps • General Purpose Input/Output (GPIO) — All digital and analog signal pins for the on-board peripherals can also be individually assigned to be GPIO and individually assigned a direction — In addition to I/O capability, the GPIO can also generate interrupts — Each GPIO has programmable pull-ups — The GPIO also has a push-pull mode to efficiently implement a keypad interface • Computer Operating Properly (COP) — Assists software recovery from runaway code — The COP is a free-running down counter which, once enabled, is designed to generate a reset when reaching zero — Software must periodically service the COP to clear the counter and prevent a reset — The COP enhances end-system reliability and safety • JTAG/EOnCETM — This enhanced on-board emulation module enables true full-rate emulation without the need for expensive hardware emulators — To perform powerful, non-intrusive, real-time debugging, simply attach to the processor with the industry-standard JTAG interface Benefits and Features of the 56F8013 Controller, Rev. 0 Freescale Semiconductor Preliminary 2-3 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 2-4 Freescale Semiconductor Preliminary Motor Drive System Features Chapter 3 Motor Drive System 3.1 Introduction The Permanent Magnet Synchronous Motor (PMSM) is an excellent choice for air conditioning and compressor applications. This application employs sensorless Field-Oriented Control (FOC) to control a PMSM using the 56F8013 device. Software running on the 56F8013 device implements the complicated sensorless FOC algorithm. 3.2 Motor Drive System Features • The motor drive system meets the compressor requirements • The motor control algorithm employs Field-Oriented Control (FOC). The power stage switches are controlled by means of Space Vector Pulse Width Modulation (SVPWM). • The feedback hardware elements are limited to the motor stator phase currents and the bus voltage. No position information devices or stator flux measurement are used; sensorless speed methods are employed. • The Motor is capable of forward and reverse rotation and has a speed range of 500rpm to 6000rpm. • The motion profiles, rotation direction, and speed are under user control. Tuning control parameters is easy with the user-friendly Human Machine Interface (HMI). • The motor drive system is designed to produce minimal acoustic noise and have optimum control parameters. • Some common PMSM advantages of Field-Oriented Control and Brushless DC Control: — Ability to control motors over a wide range of speeds — Precise speed regulation without additional cost — Rapid acceleration and deceleration capability — Starting torque and dynamic response equal to or better than conventional DC drives — Ability to operate several brushless drives from a common DCBus — No mechanical wear or conductive brush dust from brushes System features include: • The power stage is a 3-phase IGBT inverter. To reduce costs, isolation is eliminated between the power stage and the control circuit, except the communication ports. • The power stage has all circuitry required to power 3-phase sinusoidal PMSM motor applications and BLDC sensorless applications • The system includes a 50W-300W BLDC motor and PMSM motor, both of the appropriate size and at a competitive price • The controller uses a 56F8013 device and both the control and power stage boards have been designed to be low cost, while meeting the required performance requirements. Motor Drive System, Rev. 0 Freescale Semiconductor Preliminary 3-1 • The PMSM motor control algorithm employs sensorless, indirect FOC; the power stage switches are controlled by Space Vector Pulse Width Modulation (SVPWM) • BLDC motor control employs dual-loop feedback control with an inner current feedback loop and an outer speed feedback loop. The rotor position and speed are determined by back-EMF. • The feedback hardware elements are limited to the DCBus currents, the DCBus voltage, phase back-EMF and phase voltage. Motor control has a speed range of 300rpm to 4500rpm. • Software includes a speed start-up profile • The motor control board’s LEDs indicate status • The system implements an HMI using a Windows PC and an electrically isolated serial RS-232 communication to the 56F8013 device. A simplified HMI capability is implemented via the push button on a 56F8013 Demonstration Board, enabling simple operation without the need for a Windows PC. Basic information displayed on the HMI includes speed, current, voltage, and direction of rotation. • The system uses a standard Freescale 56F8013 Demonstration Board as the processor, JTAG interface, button and LED interface requirements. The power stage board has an interface to the 56F8013 Demonstration Board’s standard connector. Power Features: • 50/60Hz input frequency range • 110VAC or 220VAC operating voltage range • Maximum output power is 500W Motor control demonstrates superior efficiency at both low speeds and high speeds. 3.3 Introduction to System Design This section describes the design of the system. 3.3.1 Hardware Overview This application is directed toward applications requiring high performance and low-cost sensorless motor control such as designs for air conditioners and refrigerator compressors, so the 3-phase PMSM is driven under the air conditioning and refrigerator compressor machine requirements. To contain costs, resistors replace the phase current sensors and an optocoupler is not used. PC master software communicates through the RS-232 to a PC and facilitates viewing the mid-variables and modifying the control-variables during debug. The system comprises an 56F8013 Demonstration Board and a PMSM board. The PMSM board includes 3-phase power stage, power factor correction, a communication module linking a PC with the 56F8013 Demonstration Board, simplified Human Machine Interface (HMI), a protection module and effective electrical isolation. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 3-2 Freescale Semiconductor Preliminary Introduction to System Design L1 D1 VT1 VT3 VT5 VT2 VT4 VT6 PMSM VT0 C AC Input i B A LOAD i Vdc ωr* Oscilloscope JTAG 56F8013 Processor Board power DA driver VT6 VT5 VT4 VT3 VT2 VT1 VT0 1 HMI Figure 3-1. System Block Diagram 3.3.1.1 Integrated Power Module (IPM) An IRAMS10UP60A, which is a 600V, 10-Ampere IPM, powers the PMSM. Its built-in control circuits provide optimum gate drive and protection for the IGBT. Three bridges are integrated in its body. Figure 3-2 shows the Circuit Diagram. Motor Drive System, Rev. 0 Freescale Semiconductor Preliminary 3-3 Figure 3-2. IRAMS10UP60A Circuit Diagram 3.3.1.2 56F8013 The PMSM’s performance and accurate control demands require sophisticated and computationally complex software, delivered by a powerful DSC like the 56F8013. The controller board includes: • Control system circuit • CPU circuit • ADC circuit • Power supply circuit • SCI interface • Parallel JTAG interface • LED display circuit • Signals output interface PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 3-4 Freescale Semiconductor Preliminary Introduction to System Design 3.3.1.3 Optocoupler Omitted To contain application costs, an optocoupler is not used as the interface between the 56F8013 and IPM. A reliable protection circuit is applied to improve system safety. 3.3.1.4 Power Stage for PMSM and BLDC The power stage can control PMSM, BLDC, and ACIM motors by changing jumpers and resister values. 3.3.1.5 Signal Sample and Process Board To control hardware costs, a simple difference amplifier circuit replaces a Hall effect transducer to detect current and voltage signals. 3.3.1.6 56F8013 Demonstration Board Freescale’s 56F8013 Demonstration Board connects to the main board and highlights the capabilities of the Demonstration Board. 3.3.2 Software Overview This system is designed to drive a 3-phase PMSM using stator flux orientation and incorporates: • The control technique, which involves: — Sampling phase currents and DCBus voltages — Sliding Mode Observer (SMO) sensorless algorithm — Rotor position and speed estimation used for FOC calculation — Speed closed-loop allows the motor a good transient response — Current closed-loop allows the motor superior torque — PI regulation for the speed and current dual closed-loop control — SVPWM generates the desired voltage by the inverter • Minimum speed of 500rpm • Maximum speed of 6000rpm • Power factor correction eliminates negative effects on the input electric by the use of switches • Fault protection against: — Bus overvoltage — Bus undervoltage — Bus overcurrent — IPM overheating PC master software is used for debugging and for remote control of the PMSM system. Motor Drive System, Rev. 0 Freescale Semiconductor Preliminary 3-5 3.4 Specification and Performance Input voltage: 85 ~265VAC Input frequency: 45 ~65Hz Rating bus voltage: 350V Rating output power: 200W Switch frequency of PFC switch: 100KHz Switch frequency of inverter: 10KHz Power factor: >95% Efficiency: >90% PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 3-6 Freescale Semiconductor Preliminary PMSM Model Chapter 4 PMSM Theory 4.1 Permanent Magnet Synchronous Motor (PMSM) A PMSM provides rotation at a fixed speed in synchronization with the frequency of the power source, regardless of the fluctuation of the load or line voltage. The motor runs at a fixed speed synchronous with mains frequency, at any torque up to the motor’s operating limit. PMSMs are therefore ideal for high-accuracy fixed-speed drives. A 3-phase PMSM is a permanently excited motor. Boasting a very high power density, a very high efficiency and high response, the motor is suitable for most sophisticated applications in mechanical engineering. It also has a high overload capability. A PMSM is largely maintenance free, which ensures the most efficient operation. Precise speed regulation makes a PMSM an ideal choice for certain industrial processes. PMSM has speed/torque characteristics ideally suited for direct drive of large-horsepower, low-rpm loads. Synchronous motors operate at an improved power factor, thereby improving the overall system power factor and eliminating or reducing utility power factor penalties. An improved power factor also reduces the system’s voltage drop and the voltage drop at the motor terminals. 4.2 PMSM Model Stator voltage differential equations: uA = RsiA + pψ A uB = RsiB + pψ B uC = RsiC + pψC Stator and rotor flux linkages: ψ A = LAAi A + M AB iB + M AC iC + ψ fA ψ B = M BAi A + LBB iB + M BC iC + ψ fB ψ C = M CAi A + M CB iB + LCC iC + ψ fC ψ fA = ψ f cos θ ψ fB = ψ f cos(θ − 2π / 3) ψ fC = ψ f cos(θ + 2π / 3) PMSM Theory, Rev. 0 Freescale Semiconductor Preliminary 4-1 Where: UA, UB, UC Stator voltage vector iA, iB, iC Stator current vector ΨA, ΨB, ΨC Stator flux vector ΨfA, ΨfB, ΨfC Rotor flux vector LAA, LBB, LCC Stator equivalent inductance LAB, LBC, LCA, LBA, LCB, LAC Mutual equivalent inductance 4.3 Digital Control of a Permanent Magnetic Synchronous Motor In an adjustable speed application, PMSM and BLDC are powered by inverters. The inverter converts DC power to AC power at the required frequency and amplitude. Figure 4-1 shows the system configuration of the hardware. L1 D1 VT1 VT3 VT5 VT2 VT4 VT6 PMSM VT0 C AC Input i B A LOAD i Vdc ωr* Oscilloscope JTAG 56F8013 Processor Board power DA driver VT6 VT5 VT4 VT3 VT2 VT1 VT0 1 HMI Figure 4-1. System Configuration The inverter consists of three half-bridge units in which the upper and lower switches are controlled complimentarily, meaning when the upper switch is turned on, the lower switch must be turned off, and vice versa. As the power device's turn-off time is longer than its turn-on time, some dead time must be inserted between the time one transistor of the half-bridge is turned off and its complementary device is turned on. The output voltage is created by a Pulse Width Modulation (PWM) technique, where an isosceles triangle carrier wave is compared with a fundamental-frequency sine-modulating wave. The PWSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 4-2 Freescale Semiconductor Preliminary Digital Control of a Permanent Magnetic Synchronous Motor natural points of intersection determine the switching points of the power devices of a half-bridge inverter. This technique is shown in Figure 4-2. The 3-phase voltage waves are shifted 120° to one another and thus a 3-phase motor can be supplied. Figure 4-2. Pulse Width Modulation The most popular power devices for motor control applications are Power MOSFETs and IGBTs. A Power MOSFET is a voltage-controlled transistor. It is designed for high-frequency operation and has a low-voltage drop, so it has low power losses. An Insulated-Gate Bipolar Transistor (IGBT) is controlled by a MOSFET on its base. The IGBT requires low drive current, has fast switching time, and is suitable for high switching frequencies. Incorporated in this application, an Integrated Power Module (IPM) is widely used in today's household appliances. A built-in temperature monitor and overtemperature/overcurrent protection, along with the short circuit-rated IGBTs and integrated undervoltage lockout function, make the IPM more convenient for an engineer to develop his systems. PMSM Theory, Rev. 0 Freescale Semiconductor Preliminary 4-3 PWSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 4-4 Freescale Semiconductor Preliminary PMSM Vector Control Chapter 5 Design Concept of a PMSM Vector Control Drive and BLDC Control Drive 5.1 PMSM Vector Control Field-oriented control is commonly called vector control. This control method will maintain near-perpendicular stator flux and rotor flux by keeping the sum of stator fluxes constant. When the control axis is coincident with the stator flux, the stator flux in the load angle can be calculated from the stator current and the motor constants. When attempts are made to control this calculated stator flux at the same magnitude as the permanent magnet flux, the error in the flux can be calculated from the stator flux and the load angle. This makes it possible to construct a control system by feeding back the flux phase current calculation to the stator voltages for the various axes of the Permanent Magnet Synchronous Motor (PMSM), with the control axis coincident with the stator flux, producing a control voltage command. This voltage command is applied to the PMSM at the described frequency. Although the vector control method can achieve high performance and efficiency, it is based on the accuracy of the motor constants’ values. The variation of motor internal resistance and inductance by temperature can decrease the system’s performance and efficiency. To compensate for parameter variations, complex parameter observation and control algorithms are needed to correct those errors. On other hand, the field-oriented control method is often applied to PMSM motors with a sinusoidal back-EMF waveform shape to achieve high torque performance and efficiency. Figure 5-1 shows a sensorless PMSM vector control system. The field-oriented controller is based on a current-controlled voltage source inverter structure. The current control loops are arranged in the 2-phase synchronously rotating reference frame d-q aligned with rotor flux, while the rotor position and speed detection operates in the 2-phase stationary reference frame αβ. During normal operations, the output of the speed regulator represents the q axis reference current, iq, while the d axis reference current, id, is set to zero in order to maximize the torque-to-current ratio of the PMSM. The outputs of the current regulators represent the reference voltages in the rotating reference frame. A d-q to αβ transformation then yields the reference voltage values in the stator reference frame, which are the inputs of a Space Vector Pulse Width Modulator (SVPWM). Current feedback is obtained by measuring the 3-phase currents and the successive transformations to the stator and rotor components, respectively. The stator current components are used inside the observer, while the rotor current components are needed for current regulation. Standard PI controllers, with limitation, are used for all regulators. The combined Sliding Mode Observer (SMO) and low-pass filter provide the rotor position used for the field orientation and the rotor speed feedback used for the speed control loop. Based on the analysis, the control scheme can be obtained as shown in Figure 5-1. Design Concept of a PMSM Vector Control Drive and BLDC Control Drive, Rev. 0 Freescale Semiconductor Preliminary 5-1 rectifier * ω∗ - Speed regulation id* =0 iq Id regulation - * vα* vq IPARK Iq regulation - vd* SVPWM vβ * iq iα PARK id iβ ia CLARKE θ ω ib vα*,vβ * SMO PMSM iα , iβ Figure 5-1. PMSM System Block Diagram q β v Vref uqs d θ uds α Figure 5-2. Stator Reference Voltage, Vref Brushless DC (BLDC) systems combine the positive attributes of AC and DC systems. In contrast to a brush DC motor, motors conventionally used for a BLDC system are a type of permanent magnet AC synchronous motors with a trapezoidal back-EMF waveform shape and electronic commutation replaces the mechanical brushes in the DC motor. Although this control method will generate torque glitches during phase commutation, it satisfies most applications in which rotor speed is the control target. PMSM motors with a sinusoidal back-EMF waveform shape can also be used in a BLDC system. But the phasor angle between stator flux and rotor flux are maintained between 60° electrical and 120° electrical. Torque ripples will occur during operation, but average torque will remain constant, meeting the requirements of most low-end applications. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 5-2 Freescale Semiconductor Preliminary PMSM Vector Control PMSM Idc ADC0 Vdc ADC1 PWM Module PWM Generation Current Controller Speed Speed & Commutation Calculation Speed Controller ADC2 ADC3 ADC4 56F8013 Figure 5-3. BLDC Sensorless Control System The information from back-EMF zero crossing can be used to determine the rotor position for proper commutation and to determine which power transistors to turn on to obtain maximum motor torque. The cheapest and the most reliable method to sample back-EMF zero crossing information is to feed the resistor network samples’ back-EMF signal into ADC inputs or GPIOs. In sensored control structure, phases are commutated once every 60° electrical rotation of the rotor. This implies that only six commutation signals are sufficient to drive a BLDC motor. Furthermore, efficient control implies a synchronization between the phase Bemf and the phase supply so that the Bemf crosses zero once during the non-fed 60° sector. As only two currents flow in the stator windings at any one time, two phase currents are opposite and the third phase is equal to zero. Knowing that the sum of the three stator currents is equal to zero (star-wound stator), the anticipated instantaneous Bemf waveforms can be calculated. The sum of the three stator terminal voltages is equal to three times the neutral point voltage (Vn). Each of the Bemfs crosses zero twice per mechanical revolution, and as the Bemfs are numerically easy to compute, thanks to the signal processing capability of the 56F8013, it is possible to get the six required items of information regarding the commutation. Design Concept of a PMSM Vector Control Drive and BLDC Control Drive, Rev. 0 Freescale Semiconductor Preliminary 5-3 5.2 Procedure for Sliding Mode Observer (SMO) To perform SMO, follow these steps: 1. Measure phase currents to get the voltage command 2. Transform them into a 2-phase system using Clarke transformation 3. Sliding mode current observer The sliding mode current observer consists of a model-based current observer and a bang-bang control generator driven by the error between estimated motor currents and actual motor currents. The goal of bang-bang control is to drive the current estimation error to zero. It is achieved by proper selection of k and correct formation of estimated back-EMF. 4. Estimated Back-EMF Estimated back-EMF is obtained by filtering the bang-bang control with a first order low-pass filter. 5. Calculating Rotor Flux Position The estimated back-EMF can be calculated to estimate rotor position and rotor speed. 6. Correcting Rotor Flux Position The low-pass filter used to obtain back-EMF introduces a phase delay. This delay is directly linked to the phase response of the low-pass filter and is often characterized by the filter’s cut-off frequency. The lower the cut-off frequency, the bigger the phase delay for a fixed frequency. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 5-4 Freescale Semiconductor Preliminary Forward and Inverse Clarke Transformation (a,b,c to á,â and backwards) 5.3 Forward and Inverse Clarke Transformation (a,b,c to α,β and backwards) The forward Clarke transformation converts a 3-phase system (a, b, c) to a 2-phase coordinate system (α, β). Figure 5-4 shows graphical construction of the space vector and projection of the space vector to the quadrature-phase components, α, β. Assuming that the a axis and the α axis are in the same direction, the quadrature-phase stator currents isα and isβ are related to the actual 3-phase stator currents as follows: Figure 5-4. Clarke Transformation isβ = isα = isa Eqn. 5-1 1 2 isa + isb 3 3 Eqn. 5-2 The inverse Clarke transformation transforms from a 2-phase (α, β) to a 3-phase (isa, isb, isc) system. isa = isα Eqn. 5-3 1 3 isb = − isα + isβ 2 2 Eqn. 5-4 1 3 isc = − isα − isβ 2 2 Eqn. 5-5 Design Concept of a PMSM Vector Control Drive and BLDC Control Drive, Rev. 0 Freescale Semiconductor Preliminary 5-5 5.4 Forward and Inverse Park Transformation (α, β to d-q and backwards) In stator-vector oriented control, the quanties in the stator reference frame should be transformed into the synchronous rotation with the stator flux vector reference frame. The relationship of the two reference frames is shown in Figure 5-5. The d axis is aligned with the stator flux vector, where θΨ s is the position of the stator flux. q β d θΨv o s v Ψs α Figure 5-5. Park Transformation The quantity in the stationary frame is transformed into synchronous frame by: isd = isα cos θ Ψv s + isβ sin θ Ψv s Eqn. 5-6 isq = −isα sin θ Ψv s + isβ cos θ Ψv s Eqn. 5-7 isα = isd cos θ Ψv s − isq sin θ Ψv s Eqn. 5-8 isβ = isd sin θ Ψv s + isq cos θ Ψv s Eqn. 5-9 And the inverse relation is: 5.5 Rotor Speed Estimation Rotor speed can be calculated by the following formula in both PMSM and BLDC: ω= ∆θ ∆t Eqn. 5-10 The theta (θ) can be obtained from the SMO; time can be calculated from the counter of the PWM interrupt. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 5-6 Freescale Semiconductor Preliminary PFC Design 5.6 Speed Regulator The speed regulator uses the standard PI controller with integral anti-windup correction. The discrete-time equations used for the PI controller with anti-windup correction can be summarized as follows: en = spd * − spd Eqn. 5-11 in = X (n −1) + k p ⋅ en Eqn. 5-12 in > imax if elseif in < imin iref = imax iref = imin else iref = in in = i(n −1) + ki ⋅ en + k c ⋅ (iref − in ) where k c = ki / k p Eqn. 5-13 Eqn. 5-14 Eqn. 5-15 Eqn. 5-16 Eqn. 5-17 5.7 PFC Design The main circuit adopted in the paper is a single-switch PFC circuit, shown in Figure 5-6. The circuit is composed of Q, D, L, and filter capacitance C2, C3, and includes EMI filter, input relay and full wave rectifier. In the 56F8013-based PFC module system, the controller samples the voltage signal output and voltage DC_bus, and processes these samples in the digital control loop. Because system is based on current Discontinuous Current Mode (DCM) mode, there is only a voltage loop. Outer voltage loop G insures the output voltage is constant. Design Concept of a PMSM Vector Control Drive and BLDC Control Drive, Rev. 0 Freescale Semiconductor Preliminary 5-7 L D Q C2 C3 R1 R2 C1 1 3. 3 VP P WM1 G RX RX TX TX Verr DC_ b u s + V_ref 56F8013 ADCIN0 Figure 5-6. PFC Configuration Diagram 5.7.1 Inductor Selection A. Maximum peak line current: Eqn. 5-18 B. Ripple current: Eqn. 5-19 C. Determine the duty factor at Ipk, where Vin(peak) is the peak of the rectified line voltage. Eqn. 5-20 D. Calculate the inductance; fs is the switching frequency. Eqn. 5-21 Round up to 250µH. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 5-8 Freescale Semiconductor Preliminary PFC Design 5.7.2 Output Capacitor Output filter inductor can be calculated by the following equation: C= 2 × PO × ∆t V − VO2(min) 2 O (max) Eqn. 5-22 Po = 500W Vo(min) = 380 × (1-10%) = 342V Vo(max) = 380×(1+10%) = 418V ∆t= 50ms According to Equation 5-21, C = 866µH. Select the output capacitor to be C = 940µH. Two 470µH/450V electrolytic capacitors connected in parallel are chosen. 5.7.3 Main Switch The voltage limit of the main switch is: VCEM(S) > 1.5Vcem(S) = 1.5Vin(max) = 1.5 X 380 = 570V Eqn. 5-23 The circuit limit of the main switch is calculated by RMS value: ICEM(S) > 1.5IL(max) = 1.5 × 2 ⋅ Po η ⋅Vin(min) = 1.5 × 2 ⋅ 500 = 13.86A 0.9 × 85 Eqn. 5-24 Select main switch Q400—Q401 to be the MOSFET IRFPC60LC. Parameters are described as follows: VDSS = 600V ID = 16A RDS(on)tye = 0.4Ω TO-247AC Package 5.7.4 Output Diode The voltage limit of the output diode is: VCEM(S) > 1.5Vcem(S) = 1.5Vin(max) = 1.5 X 380 = 570V Eqn. 5-25 The circuit limit of the output diode is calculated by RMS value: ICEM(S) > 1.5IL(max) = 1.5 × 2 ⋅ Po η ⋅Vin(min) = 1.5 × 2 ⋅ 500 = 13.86A 0.9 × 85 Eqn. 5-26 Design Concept of a PMSM Vector Control Drive and BLDC Control Drive, Rev. 0 Freescale Semiconductor Preliminary 5-9 Select output diode D400—D402 to be FRED DSEP60-06A. Parameters are described as follows: VRRM = 600V IFAVM = 60A trr = 35nS TO-247AD Package 5.7.5 Inductor Design In Section 5.7.1, it was found that L=250µH. Select Bm=0.3T. Select magnetic core to be EI33, with an effective area of 118mm2. The number of inductor windings can be calculated as follows: N= LI L (max) =38.2 Ae Bm Eqn. 5-27 Select N = 38.The gap is: δ= µ o N 2 Ae L 1.25 × 10 −6 × 382 ×118 × 10 −6 = = 0.85mm 250 × 10 −6 Eqn. 5-28 When work frequency of inductance is 100kHz, the penetrate depth of copper lead is: Λ= 2 1 = = 0.209mm 3 2πf s µγ 3.14 × 100 × 10 × 1.25 × 10 −6 × 58 ×10 6 Eqn. 5-29 Where: γ is the electric conductive ratio of lead µ is magnetical conductive ratio of lead A copper lead with a smaller diameter than 0.42mm can be selected. In this case, select high intensity lead with a diameter of 0.33mm and an effective area of 0.0855mm2. 3.84 = 1.1mm2 . By selecting circuit density to be J = 3.5A/mm2, the area of leads is S = 3.5 Thirteen leads with a diameter of 0.33mm must be used. Kc = 38 ×13 × 0.0855 = 0.32 <<0.35 132 Eqn. 5-30 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 5-10 Freescale Semiconductor Preliminary 56F8013 Chapter 6 Hardware Implementation The motor control system is designed to drive the 3-phase PMSM motor in a dual closed-loop (speed closed-loop and current closed-loop). The system is pictured in Figure 6-1 and consists of the following blocks: • 56F8013 • High-voltage power stage circuitry with sensor circuitry • Power supply and PFC circuitry • 3-phase PMSM motor without speed transducer 6.1 56F8013 The demonstration system is illustrated in Figure 6-1 and the hierarchy diagram is depicted in Figure 6-2. it clearly shows that the 56F8013 is the core of the system, highlighted atop the mother board. Figure 6-3 shows the motor control system configuration. Figure 6-1. Demonstration System Hardware Implementation, Rev. 0 Freescale Semiconductor Preliminary 6-1 PMSM Motor DSC Controller Board J1 on DSC Controller Board RS-232 Connector Motherboard Heatsink J5000 on Power Board Right Side Left Side RS-232 Aeration holes POWER OFF Input Power POWER ON Front Side Figure 6-2. Hierarchy Diagram The 56F8013 is the drive’s brain. All algorithms are carried out in this single smart chip, which reads the input commands, processes the routine, and generates the PWM to govern the power switches driving the motor and the PFC to make the input current sinusoidal. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 6-2 Freescale Semiconductor Preliminary High-Voltage Power Stage Motherboard Bus Voltage 110V-220V ACINPUT Power supply stage & PFC 3phase PMSM High Voltage Power Stage Sensor Stage Auxillary Voltage Control Signal Feedback Signal 56F8013EVM LOAD Speed setup Figure 6-3. Motor Control System Configuration 6.2 High-Voltage Power Stage The HV Medium Power Board is designed to meet the power needed by a household washing machine and lower-power industrial applications. An Integrated Power Module (IPM) is used to simplify the design and board layout and to lower the cost. IPMs are available from various suppliers and it is simple to use one from a supplier of choice. The IRAMS10UP60A is an IPM which targets the household appliance market. Its features include: • Integrated gate drivers and bootstrap diodes • Temperature monitor • Temperature and overcurrent shutdown • Fully isolated package • Low VCE (on) non-punch-through IGBT technology • Undervoltage lockout for all channels • Matched propagation delay for all channels • Low-side IGBT emitter pins for current conrol • Schmitt-triggered input logic • Cross-conduction prevention logic • Lower di/dt gate driver for better noise immunity Its maxium IGBT block voltage is 600V; phase current is 10A at 25°C and 5A at 100°C, making it suitable for this appliance. Hardware Implementation, Rev. 0 Freescale Semiconductor Preliminary 6-3 6.3 Sensor Stage The control algorithm requires DCBus voltage and phase current sensing for a PMSM, and DCBus current and phase voltage sensing for a BLDC, so these sensors are built on the power stage board. Schematics of the sensors’ circuits can be found in Appendix A. 6.3.1 DCBus Voltage Sensor The DCBus voltage must be checked because overvoltage protection and PFC are required. A simple voltage sensor is created by a diffential amplifier circuit. The voltage signal is transferred through a resistor and then amplified to the reference level. The amplifier output is connected to the 56F8013’s ADC. Figure 6-4. DCBus Sampling Circuit 6.3.2 DCBus Current Sensor The bus current is sensed through the detection of the voltage drop across the resistor cascade into the negative bus link. A differential amplifier is then used to draw the voltage out and transform it to a level the 56F8013’s AD channel can accommodate. The sample circuit is depicted in Figure 6-5. 2 2 1 PGND 8 R6001 10K-0.1% 1 I_Sense_DCB1 C6000 0.1uF R6003 8.2K-0.1% D+5V U6001A MC33172 1 3 2 R6005 160 R6002 10K-0.1% C6003 0.01uF 5 U6001B MC33172 7 I_Sense_DCB 6 I_Sense_DCB 4 2 R6004 1 2 1 8.2K-0.1% Figure 6-5. Bus Link Current Sample Circuit PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 6-4 Freescale Semiconductor Preliminary Protection Circuit 6.3.3 Phase Current Sensor The stator flux and electromagnetic torque can be derived from two phase currents and voltages. The use of a Hall current transducer will sharply increase the cost, and two channel differential amplifiers are used as the Analog-to-Digital Converter (ADC) to sample phase currents as shown in Figure 6-6 (a). The SVPWM is employed to control the six IGBTs. The state in which all bottom switches are turned on and upper switches are turned off is defined as state 0, and the corresponding equivalent topology is depicted in Figure 6-6 (b). The sample is triggered at state 0, shown in Figure 6-6 (c). In this way, two phase currents can be derived through the differential amplifier channels. The spot worth consideration is that a certain margin ∆ should be maintained between the circle track formed by the reference voltage vector V ref and the inscribed circle of the hexagon shaped by the six base vectors as described in Figure 6-6 (a), especially at the high speed range. V3(010) II V2(110) ∆ Current Sensing Circuit III Vref T2 VI PhaseC IV V1(100) PhaseB T 1 PhaseA V4(011) I Induction Motor V5(001) V V6(101) (a) SVPWM (b) Equivalent Topology Figure 6-6. Methods to Detect Phase Currents 6.3.4 Phase Voltage Sensor Phase voltage sensing is same as DCBus voltage sensing; see Section 6.3.1. 6.3.5 Power Supply Stage The power supply stage provides a high-voltage DCBus +5V power supply for the drive and auxillary power and +15V for the 56F8013, IPM, high-voltage drivers and amplifiers. A topswitch generates auxiliary power supply of +15V for both the ICs and the IPM. PFC is employed to make the input current trace the input voltage and to reduce the EMI. 6.4 Protection Circuit To improve the system safety level, overcurrent and overvoltage in the bus link detection and protection are introduced into the system, illustrated in Figure 6-7. The signal generated by the circuit “IPMLOCK” will be connected to the IPM’s drive IC (74HC244) and to the 56F8013’s fault pin. When a fault is generated, the IPMLOCK signal draws to high level. On the one hand, the IPMLOCK will disable the 74HC244 and the PWM signals won’t pass through; on the other hand, the IPMLOCK signal will drive the 56F8013’s fault0 pin, and the 56F8013 will block the PWM signal instantly. Hardware Implementation, Rev. 0 Freescale Semiconductor Preliminary 6-5 C6031 0.01uF D+5V C6032 0.01uF D+5V RV6002 10K 4 R6011 2K U6002A MC33172 1 2 3 D6000 IN4148 1 8 R6008 620 R6009 R6010 1.2K 220K C6004 0.01uF C6033 0.01uF D+5V C6030 0.01uF RV6003 10K 6 0.1uF R6016 6.8K IPMLOCK D+5V IPMLOCK R6015 3K U6002B LM293 7 D6001 IN4148 1 5 2 C I_Sense_DCB LED6001 RED DISPLAY C6005 D+5V LED6001 RED DISPLAY R6012 620 2 V_Sense_DCB R6013 R6014 1.2K 220K C6006 0.01uF R6016 6.8K Figure 6-7. Protection Circuit 6.5 PFC Hardware Design The topology of the main circuit is a boost circuit. One signal, output bus voltage DC_bus, is sampled and sent to the 56F8013. Figure 6-8. Main PFC Circuit PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 6-6 Freescale Semiconductor Preliminary PFC Hardware Design 6.5.1 Drive Circuit Hardware Design IC IR2125, a simple and reliable gate drive circuit based on a current-limiting single channel driver, is used; it is shown in Figure 6-9. Figure 6-9. PFC Drive Circuit 6.5.2 Sample Circuit Hardware Design The output bus voltage, Vbus, sample circuit is shown in Figure 6-10. A simple voltage divider is used for the bus voltage sample. Figure 6-10. PFC Sampling Circuit Hardware Implementation, Rev. 0 Freescale Semiconductor Preliminary 6-7 6.6 Detailed Motherboard Configurations for ACIM The motherboard shown in Figure 6-2 comprises a high-voltage power stage, a sensor stage, a protection circuit and PFC. It is a general board which can be used for PMSM, BLDC and ACIM after simple configuration with resistances and jumpers. Configurations for PMSM are shown in Figure 6-11; BLDC configurations are illustrated in Figure 6-12. Shorten circuits for the jumpers circled in red and blue. Figure 6-11. PMSM Jumper Configuration PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 6-8 Freescale Semiconductor Preliminary Detailed Motherboard Configurations for ACIM Figure 6-12. BLDC Jumper Configuration Table 6-1 details the configurations of the 56F8013 resources used in the system and the corresponding variables used in the software. Table 6-1. Configuration of the 56F8013’s Resources Target Variables 56F8013 Resources Software Resources DCBus Voltage: V_sense_DCB ANB1 (PC5) sample3 AD_VDC U phase Current Sample: I_sense_U ANA1 ( PC1) sample0 AD_iA V phase Current Sample: I_sense_V ANA0 (PC0) sample1 AD_iB DCBus Current Sample: I_Sense_DCB ANB0 (PC4) sample4 AD_iDC Relay: AC_RELAY PB5 OPEN: OPEN PB2 DACCLK PB0 DACDATA PB3 DACEN PB1 TXD PB7 RXD PB6 FAULT0 PA6 Hardware Implementation, Rev. 0 Freescale Semiconductor Preliminary 6-9 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 6-10 Freescale Semiconductor Preliminary Block Diagram Chapter 7 Software Design This section describes the design of the drive’s software blocks. The software will be described in terms of: • Block Diagram • Control Algorithm 7.1 Block Diagram The drive’s requirements dictate that the software gathers and processes values from the user interface, then generates 3-phase PWM signals for the inverter. The control algorithm contains the processes described in the following sections. Software Design, Rev. 0 Freescale Semiconductor Preliminary 7-1 Sensorless Control General Dataflow PWM ISR Start ISR Start Initilaization Soft start& Set P_Flag =1 Time Delay Under-voltage Protection Initialization & Set P_Flag =1 Call PFC subroutine Set the value of K Ktemp & Num PFC = 1? No Yes Start AD & Set the Ioffset value PWM output enable Close-loop Control Close-loop control =1? No Yes No Time count++ End sensebit = 1 Yes No Read start angle Start AD smobit++ Yes Read end angle No Read start angle smobit = 2 No sensebit = 0 Yes Calculate angle increment Set runbit = 1 smobit = 0 PWM Output Disable ISR end Set spdreg = 1 sensebit++ Figure 7-1. PMSM Block Diagram (Part 1 of 3) PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 7-2 Freescale Semiconductor Preliminary Block Diagram For program Data Flow Run PWMoutput Close-loop Run start PWMoutput start Close-loop start Close-loop decision Calculate activeTime Calculate Vα Vβ Call Run subroutine Call PWM output subroutine Calculate Duty Ratio Call Clarke & calculate Iα Ιβ Clear runbit Read Vbus Output PWM Call SMO subroutine Read Ia Ib Calculate New K Num value θ value correction Main start runbit = 1 No Yes Spdreg =1? No Yes Call spdreg Call Close-loop subroutine Sector decision Call Park & calculate Id Iq Clear spdregbit& Time count Run end PWM output end Call Idreg Call SCI & LED Close-loop end Main program end Figure 7-2. PMSM Block Diagram (Part 2 of 3) Software Design, Rev. 0 Freescale Semiconductor Preliminary 7-3 SMO Idreg SVPWM spdreg SMO start Idreg start SVPWM start spdreg start Calculate Isα Isβ Calculate Ierr Calculate K θ Calculate Spderr Calculate Zα Zβ P regulation K correction P regulation Calculate Eα Eβ Calculate Uout SVPWM end Calculate Iqout θ estimation I regulation I regulation SMO end Call Ipark & Calculate Uα Uβ spdreg end Call SVPWM Idreg end Figure 7-3. PMSM Block Diagram (Part 3 of 3) PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 7-4 Freescale Semiconductor Preliminary Block Diagram Sensorless control General Dataflow PWM ISR Start ISR Start Time delay Soft Start & Set P-flag = 1 Initialization Under-voltage Protection Initialization & Set P-flag=1 Call PFC Subroutine Call Variable initialization PFC = 1? No Yes P-flag=1? No PWM Output Enable PWM Output Disable Yes No direction=1? Yes Clockwise Start program Start AD & Set AD_sta Anti-clockwise Start program SpdregF = 1 No Yes Close-loop Sensorless control Count_Spdreg++ Count_Idreg++ End Count_Spdreg = 99? Count_Idreg = 8? No Yes Call Id_reg Count_Idreg = 0 No Start AD Read Idc Yes Set Spd_ref End Call Speed_reg Count_Spdreg = 0 Figure 7-4. BLDC Block Diagram (Part 1 of 3) Software Design, Rev. 0 Freescale Semiconductor Preliminary 7-5 Start AD_sta = 1? Variable Initialization BemfZC For subroutine No Start Start Direction Judgement Set Variable Initial Value Yes Bemf zerocrossing ? Call BemfZC Subroutine No PWM Output Disable Yes ZCflag = 1? No ZC_temp++ Clear ZC_temp Clear SWAP Bits Yes Set SpdregF Calculate ZC2pwm ZC_temp > 3? Call Spdcal Subroutine Calculate TimerZC2PWM & Set zcflag Start Timer End End Clear AD_sta Call LED SCI End Figure 7-5. BLDC Block Diagram (Part 2 of 3) PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 7-6 Freescale Semiconductor Preliminary Block Diagram PWM output Spdcal Spdreg Curreg Start Start Start Start Direction Judgement Calculate SpeedAverage Calculate Spderr Calculate Iderr Clear Previous SWAP Bits End PI Regulation Calculate Duty Set PWMVAL Idref Correction Duty Correction Set Output Channel End Calculate PWMVAL Timer ISR PWMVAL Correction Set Current SWAP Bits Start PWM Output End Call PWM Output Segment Determine Timer & Timer Interrupt Disable End Set Register End Figure 7-6. BLDC Block Diagram (Part 3 of 3) Software Design, Rev. 0 Freescale Semiconductor Preliminary 7-7 7.2 Rotor Speed Estimation A speed sensorless induction motor drive is a trend in today’s low cost variable speed applications. Due to the cost and maintenance required by a speed transducer, speed sensorless technology is drawing more attention. For convenience, this application assumes a simple method to estimate rotor speed, described in Section 5.5. 7.3 Space Vector Pulse Width Modulation (SVPWM) Space Vector Modulation (SVM) can directly transform the stator voltage vectors from an α, β-coordinate system to Pulse Width Modulation (PWM) signals (duty cycle values). The standard technique for output voltage generation uses an inverse Clarke transformation to obtain 3-phase values. Using the phase voltage values, the duty cycles needed to control the power stage switches are then calculated. Although this technique gives good results, space vector modulation is more straightforward and realized more easily by a digital signal controller. 7.4 Fault Control From the consideration of the cost control, optocoupler is not used in this system. The fault control process and its hardware should be designed to provide a solid protection against damage. In this application, due to the high complex of the pins, the fault1 to fault3 input pins are coupled with the PWM output pads. Only fault0 is valid for the detection of the rising edge generated by the fault signals. The overcurrent, overvoltage and overheat protections are merged together with the OR relation; that is, if any of them occur, the pin Fault0 will catch the edge and the fault process will dominate all resources and disable the PWM output pads. The routine will trap into the Interrupt Service Routine (ISR) once the fault occurs. 7.5 PFC Software Design Power Factor (PF) is defined as the ratio between real power and apparent power of AC input. Assuming input voltage is a perfect sine wave, PF can be defined as the product of current distortion and phase shift. Consequently, the PFC circuit’s main tasks are: • Controlling inductor current, making the current sinusoidal and the same phase as input voltage • Controlling output voltage, insuring the output voltage is stable The PFC main current needs two closed loops to control the circuit: — The voltage loop is the outer loop, which samples the output voltage and controls it to a stable level — The current loop is the inner loop, which samples inductor current and forces the current to follow the standard sinusoidal reference in order to reduce the input harmonic current The system in this application is based on current Discontinuous Current Mode (DCM), in which there is only a voltage loop. DCM can make the current both sinusoidal and the same phase as input voltage. PI loop control is widely used in industry control because of its simplicity and reliability. In this application, the voltage loop adopts PI regulator arithmetic. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 7-8 Freescale Semiconductor Preliminary PFC Software Design These assumptions simplify analysis: • Input current follows reference perfectly, which is proportional to the input voltage • There is no additional power depletion in the circuit; power efficiency is 1 • Output power is constant Figure 7-7. Simple PFC Mode The function for output voltage: ⎧Uv(n) = K 0v × Ev(n) + Iv(n − 1) ⎪ ⎨ Iv(n) = Iv(n − 1) + K1v × Ev(n) + Kcorrv × Epiv ⎪ Epiv = Usv − Uv(n) ⎩ ⎧Uvmax ⎪ Usv = ⎨Uvmin ⎪Uv(n) ⎩ whenUv(n) ≥ Uvmax whenUv(n) ≤ Uvmin else Uv(n) = the result of PI unit Ev(n) = input error Iv(n) = integral unit K0v = proportional constant K1v = integral constant Kcorrv = resistant saturation constant Usv = result of voltage loop after limit Uvmax = maximum of voltage loop Uvmin = minimum of voltage loop Software Design, Rev. 0 Freescale Semiconductor Preliminary 7-9 Vo* G ( Z) vo K Figure 7-8. Discrete Voltage Loop Structure PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 7-10 Freescale Semiconductor Preliminary JTAG Simulation Function Chapter 8 JTAG Simulation and SCI Communication There are abundant software and hardware resources for JTAG simulation and communication in the 56F8013 device. With these resources, a 56F8013-based motor system can accomplish mixed communication functions, such as JTAG debug and SCI interface, between the power module and PC. Isolation is necessary between power electronics and microelectronics in the power system for safety. The communication system consists of two parts: • JTAG circuit, designed for debugging and programming the 56F8013 • SCI circuit, designed for background communication from the PC; power management and supervision can be realized conveniently Figure 8-1. Communication Board’s Frame Figure 8.1 JTAG Simulation Function Because the 56800E core integrates the JTAG/EOnCE function, the 56F8013 can be debugged and programmed through the parallel port by a simple interface circuit without any special emulator. The debug function is provided by JTAG interface. The power main circuit must be removed to ensure safety. During debugging, the connection for main power circuit should be cut off by disconnecting the J5000 connector on power board; see Figure 8-2. JTAG Simulation and SCI Communication, Rev. 0 Freescale Semiconductor Preliminary 8-1 Figure 8-2. System Diagram Figure 8-3. Connections for JTAG Simulation As shown in Figure 8-3, the JTAG flat cable is connected to the 56F8013‘s J1. A parallel cable links the JTAG to PC’s parallel port. CAUTION Disconnect J5000 in the Power Board before debugging or refreshing the control program. Otherwise, damage to or invalidation of the demo, or even electrical shock, can occur. Debugging or refreshing the control program should only be done by experienced personnel. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 8-2 Freescale Semiconductor Preliminary SCI Communication Function Figure 8-4. CodeWarrior Development Tool Interface CodeWarrior IDE is necessary to debug software and refresh the program; version 7.0 or later is recommended. Figure 8-4 shows the software interface. Details about installation and use can be found in the CodeWarrior documentation. 8.2 SCI Communication Function Connections for SCI communication are shown in Figure 8-5. A serial cable links the RS-232 connector on the demonstration board to the PC’s serial port. JTAG Simulation and SCI Communication, Rev. 0 Freescale Semiconductor Preliminary 8-3 Figure 8-5. SCI Communication Connections The PC master software tool can be used for development and control of the application. Details about installation and use of PC master software can be found in the CodeWarrior tool. PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 8-4 Freescale Semiconductor Preliminary Cautions Chapter 9 Operation This section offers brief instructions on operating the PMSM application. 9.1 Switch-on Follow these steps to start the PMSM application: 1. Make sure the power switch is on the POWEROFF state, then put the plug in a wall socket 2. Switch the appliance on by pressing down the POWERON button. The 56F8013 starts the main power, and the PMSM begins to work 9.2 During Operation 1. LEDs on controllers can display system information — LED 1 displays the operating mode — LED 2 displays the rotation speed 2. SCI communication provides background supervision for the power module — SCI baud rate configuration: 4800 BPS 3. Debug function is provided by the JTAG interface See Caution, Section 8.1 and Section 9.4. 4. To ensure the demo plate coupled on the shaft of the motor will not fly out, be sure the upper cover of the box is closed 9.3 Switch-off To turn the application off, follow these steps: 1. Switch off the POWERON Button — The 56F8013 cuts off the main power and the bus voltage is decreased 2. Unplug the power line. — The controller is powered off, and system is switched off 9.4 Cautions To ensure safety, take care when: 1. Pressing the POWERON Button down after the power line is plugged in during the switch-on process 2. Pressing the POWERON Button up before the power line is unplugged during the switch-off process 3. Debugging Before beginning the debug process, cut off power to the main power circuit by disconnecting the J5000 connector on the Power Board Operation, Rev. 0 Freescale Semiconductor Preliminary 9-1 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 9-2 Freescale Semiconductor Preliminary Appendix A Schematics Schematics, Rev. 0 Freescale Semiconductor Preliminary Appendix A-1 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 J5000 AC INPUT PGND AC_IN11 L2004 3.3uH 2 K PGND 4 1 C A Q5001 PSS8050 PGND C2005 0.1uF/250VAC U5021 RELAY R5023 120/3W F2000 2A250VAC 5 1 TE5022 PGND PGND DGND & PGND Connected together,for no opto-isolation is used DGND AC_IN22 J2000 AC INPUT AC_IN2 AC_IN1 PGND P+15V D5023 1N4004 1 + C5036 47uF/10V 5 C5001 0.1uF VR2000 P6KE200 3 2 U2000 TOP223YAI 1 D5022 1N4007 D2001 BYV26C C2006 47uF/400V PGND D2002 KBP10 PFC_AP 220uH L5001 R5022 AC_RELAY 1K PGND C5000 D5000 470nF/275V IR25XB08H F5000 250V/20A C5025 0.1uF 9 R5008 0.02 C2009 47uF C2008 0.1uF D2003 1N4148 C2007 0.1uF R5002 10/3W C5002 680pF/2K D5001 DSEP60-06A R2000 6.2 D2006 MUR420 E C2020 330uF/35V L2003 3.3uH U2002 TL431 R2001 2K PGND C2028 1.6nF/450VAC K NEC2501 U2001 A C2027 0.1uF R2002 200/0.5W P+15V BUS+ PGND R2003 10K RV2000 100K 2 C2016 220UF/25V L2002 3.3uH NC GND TC4420 2 P+15V 5 6 900 R2005 300 PGND C2019 1uF DGND 1 LED2001 RED DISPLAY VB 5 7 6 8 CS 0.1uF PGND C5026 10nF C5024 DGND D+5V R5024 6.8/0.5W PFCdrive3 VS HO CS PFC & AP 1N4001 C5027 0.1uF LED2002 RED DISPLAY 1 P+15V 4 PGND 3 D+5V 2 DGND 1 POWER PLUG R2004 IN ERR VCC U5020 C2018 220UF/25V D+5V GND OUTPUT 7 8 PGND VDD JP2001 2 3 1 D5020 C5023 10pF 4 COM IR2125 C5021 0.1uF INPUT OUTPUT D+5V C2017 0.1uF R5020 1K VDD U13 Q2000 7805 PGND P+15V PGND 4 3 2 1 P+15V PFCdrive1 P+15V P+15V PGND PGND PFCdrive00 Plug for PFC Debug 4 3 2 1 JP5020 PGND C5020 220UF/25V PFCdrive1 C50280.1uF PFCdrive1 PGND C2015 330uF/35V C2022 0.1uF D2005 MUR420 PGND R5007 470K/2W R5006 470K/2W PGND D5021 1N4007 PFC_AP C2021 220UF/25V PFCdrive3 PFCdrive00 PFCdrive2 C5004 330uF BUS+ PFC DRIVER JUMPER JP5003 R5003 30K Q5000 IXTH30N50 PFCdrive00C5003 330uF APC TRANSFORMER TR2001 CS PowerJumper J5002 AC_RELAY 9 P+15V 1 P+15V 1 3 Appendix A-2 Freescale Semiconductor Preliminary R5021 6.8/0.5W V2.0 PFCdrive2 PGND C4001 0.1uF 74LS164(U4000) D+5V D+5V DGND /LEDEN LEDCLK LEDDATA C4002 0.1uF 74LS164(4001) D+5V /LEDEN LEDCLK LEDDATA D+5V D+5V C4000 47uF/10V D+5V 24 1 18 19 /LEDEN 9 4 12 LEDCLK 13 LEDDATA R4010 10K 5K MR CLK A B GND GND MAX7219 LOAD CLK DOUT DIN ISET V+ MR CLK 3 4 5 6 10 11 12 13 DIG0 DIG1 DIG2 DIG3 DIG4 DIG5 DIG6 DIG7 3 4 5 6 10 11 12 13 14 16 20 23 21 15 17 22 2 11 6 7 3 10 5 8 DIG1 DIG2 DIG3 DIG4 DIG5 DIG6 DIG7 DIG8 SEGA SEGB SEGC SEGD SEGE SEGF SEGG SEGDP Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 D+5V Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 74HC164 U4004 9 7 A B U4000 74HC164 8 9 7 LEDCLK /LEDEN R4009 /LEDEN 8 14 1 2 5K R4008 U4001 LEDDATA D+5V 14 1 2 D+5V SEGA SEGB SEGC SEGD SEGE SEGF SEGG SEGDG DIG1 DIG2 DIG3 DIG4 DIG5 DIG6 DIG7 DIG8 100 100 100 100 100 100 100 100 R4007 R4006 R4005 R4004 R4003 R4002 R4001 R4000 SEGA SEGB SEGC SEGD SEGE SEGF SEGG SEGDG 11 7 4 2 1 10 5 3 11 7 4 2 1 10 5 3 DIG.1 a DIG.1 a b c f g b d e e d c f dp g dp 12 DIG.1 a DIG.1 a b c f g b d e e d c f dp g dp 12 d c d c c dp d LED DISPLAY d dp c e dp e f e DIG.3 DIG.3 a b g dp DIG.3 DIG.3 a f b g DIG.2 DIG.2 a b g f e DIG.2 DIG.2 a f b g 9 9 8 8 U4002 FYQ-3641A d c U4003 FYQ-3641A dp e d dp c DIG.4 DIG.4 a b g f e DIG.4 DIG.4 a f b g 6 6 Freescale Semiconductor Preliminary + Schematics, Rev. 0 Appendix A-3 V2.0 D+3.3V DGND TXD1 RXD1 D+3.3V DGND TXD1 RXD1 R3000 R3001 800 800 0.1uF C3008 C NEC2501 U3002 NEC2501 A U3001 R3003 800 GND_PC1 R3002 800 +5V_SCI1 A C 4 D+3.3V 1 1 0.1uF C3009 GND_PC1 D3000 BAV99 1 C3005 10uF/10V C3001 5 0.1uF 4 3 C3002 1 0.1uF C2- GND 15 C2+ VCC 16 C1- V- 6 C1+ V+ 2 MAX202CSE 8 13 7 14 D3001 BAV99 C3003 0.1uF GND_PC1 +5V_SCI1 C3004 0.1uF 1 +5V_SCI1 +5V_SCI1 C3007 10uF/10V C3006 1 10uF/10V GND_PC1 2 3 4 D3004 1N4733 NC CAP+ GND R2O R2I R1O R1I T2I T2O T1I T1O U3003 V+ TC7660 OSC LV VOUT CAP- U3000 9 12 10 11 8 7 6 5 + Appendix A-4 4 + + PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 Freescale Semiconductor Preliminary 1 D3002 BAV99 ISOLATED SCI D3003 BAV99 1 DB9 5 9 4 8 3 7 2 6 1 J3001 GND_PC1 C3000 0.1uF +5V_SCI1 5 9 4 8 3 7 2 6 1 GND_PC1 V2.0 Schematics, Rev. 0 V_Sense_DCB I_Sense_DCB R6012 620 R6008 620 C6006 0.01uF C6004 0.01uF W1 R6015 330 D+5V LED6001 OverCur C6032 0.01uF D6001 1N4148 D6000 1N4148 R6017 300 LED6002 OverBusVo l R6016 300 R6011 330 D+5V U UN V VN BUS+ PGND DGND D+5V (PROTEC OF DCBUS CURRENT & DCBUS VOLTAGE, FOR PROJECT OF ACIM AND PMSM) 220K 1.2K LM293 0.1uF C6005 OUT C6033 0.01uF U6002 R6014 RV600 3 10K 2 D+5V C6030 0.01uF 220K R6013 1.2K U UN V VN BUS+ PGND DGND D+5V R6010 U6002 LM293 D+5V C6031 0.01uF RV6002 10K 2 D+5V I_Sense_DCB 1 R6009 FOR BLDC 1 I_Sense_DCB 1 1 1 U1 V1 7 U1 V1 W1 1 1 PGND VREF OUT GND R6004 4 + 160 R6044 C6038 0.1uF C6034 0.01uF DGND R6051 10K R6050 10K C6035 0.01uF JP6000 U6008 MC33172 U6007 MC33172 4 U6010 MC33172 8 C6039 0.1uF VCC OUT GND 160 C6003 0.01uF R6005 U6001 MC33172 I_Sense_V I_Sense_V I_Sense_U I_Sense_DCB 1.65VREF I_Sense_U D+5V I_Sense_DCB Reference Voltage Jumper(1.65V for PMSM and DGN D for ACIM) 1.65VREF VREF DGND (SAMPLE OF PHASE CURRENT, FOR PMSM) 160 R6049 (SAMPLE OF PHASE CURRENT, FOR PMSM) DGND C6037 10uF/16V 8 7 6 5 (SAMPLE OF DC BUS CURRENT, FOR ACIM) 8.2K-0.1%ACIM/1M-0.1%PMSM R6002 10K-0.1%ACIM/200K-0.1%PMSM U6001 VCCMC33172 C6000 0.1uF C6041 0.1uF OUT GND R6048 4 U6008 8 MC33172 D+5V VCC 1M-0.1%PMSM 1.65VREF C6040 0.1uF OUT GND R6043 4 U6007 8 MC33172 D+5V VCC REF196 U6009 TP NC VS NC SLEEP OUTPUT GND TP 1M-0.1%PMSM R6001 8 10K-0.1%ACIM/200K-0.1%PMSM R6003 8.2K-0.1%ACIM/1M-0.1%PMSM D+5V IPMLOCK I_Sense_DCB1 IPMLOCK R6046 200K-0.1%PMSM VN R6045 V 200K-0.1%PMSM R6047 1M-0.1%PMSM R6041 200K-0.1%PMSM UN R6040 U 200K-0.1%PMSM R6042 1M-0.1%PMSM 1 2 3 4 1.65VREF D+5V R6052 4.7K 1 1 1 C6036 0.1uF 1 7 7 D+5V 7 R6021 V1 I_Sense_DCB1 W1 C6015 0.01uF R6036 7.25M-0.1% D6004 1N4733 D6009 1N4733 D6005 1N4733 D6003 1N4733 D6008 1N4733 D6007 1N4733 D6002 D6006 1N4733 1N4733 R6037 51K-0.1% R6032 51K-0.1% R6027 51K-0.1% R6022 51K-0.1% C6019 0.01uF R6031 7.25M-0.1% R6030 7.25M-0.1% R6035 7.25M-0.1% I_Sense_DCB1 C6007 0.1uF C6011 0.01uF R6026 7.25M-0.1% R6025 7.25M-0.1% R6020 7.25M-0.1% I_Sense_DCB1 U1 PGND BUS+ 7.25M-0.1% 4 8 C6012 0.1uF 4 8 C6008 0.1uF OUT GND U6004 VCCMC33172 D+5V C6016 0.01uF R6033 51K-0.1% OUT GND OUT GND U6006 VCCMC33172 C6021 0.01uF R6038 51K-0.1% 4 8 D+5V U6005 VCC MC33172 C6017 0.1uF C6013 0.01uF C6020 0.1uF 4 8 D+5V C6009 0.01uF R6023 51K-0.1% OUT GND U6003 VCC MC33172 R6028 51K-0.1% D+5V 1 1 R6039 160 R6034 160 R6029 160 R6024 160 U6003 MC33172 C6022 0.01uF C6018 0.01uF C6014 0.01uF (SAMPLE OF W PHASE VOLTAGE, FOR PMSM ONLY) U6006 MC33172 V_Sense_W V_Sense_V (SAMPLE OF V PHASE VOLTAGE, FOR PMSM ONLY) U6005 MC33172 V_Sense_DC B V_Sense_U (SAMPLE OF U PHASE VOLTAGE, FOR PMSM ONLY) U6004 MC33172 (SAMPLE OF DC BUS+, FOR PROJECT OF PMSM AND ACIM) C6010 0.01uF 7 7 1 1 7 7 Freescale Semiconductor Preliminary Appendix A-5 V_Sense_W V_Sense_V V_Sense_U V_Sense_DC B SENSOR CIRCUIT FOR ACIM & PMSM V2.0 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 Appendix A-6 Freescale Semiconductor Preliminary Appendix B PMSM and BLDC Demonstration Bill of Materials Designator Description Footprint Quantity C1000, C6003, C6004,C6006, C6009, C6010, C6011, C6013, C6014, C6015, C6016, C6018, C6019, C6021, C6022, C6030, C6031, C6032, C6033, C6034, C6035 0.01 µF RAD-0.1 21 C1001, C1009, C1037, C1038, C1039, C1040, C2007, C2008, C2017, C2022, C2027, C3000, C3001, C3002, C3003, C3004, C3008, C3009, C4001, C4002, C5001, C5021, C5024, C5025, C5027, C5028, C6000, C6005, C6007, C6008, C6012, C6017, C6020, C6036, C6038, C6039, C6040, C6041 0.1 µF RAD-0.1 38 C1002, C1003 2.2 µF / 25 V RB2.5/5 2 C1006, C1036 0.1 µF / 630V CBB RAD15/18/6 2 C1008 0.1 mF / 25V RB2.5/6 1 C1030, C1031, C1032, C1033, C1034, C1035 1 nF RAD-0.1 6 C2005 0.1 uF / 250VAC RAD15/18/6 1 C2006 47 µF / 400V RB10/22.4 1 C2009 47 µF RB2.5/5 1 C2015, C2020 330 µF / 35V RB5/10 2 C2016, C2018, C2021, C5020 220 µF / 25V RB3/8 4 C2019 1 µF RAD-0.2 1 C2028 1.6 nF / 450VAC RAD-0.4 1 C3005, C3006, C3007 10 µF / 10V RB2.5/5 3 C4000, C5036 47 µF / 10V RB2.5/5 2 C5000 470 nF / 275V RAD22/26/9 1 C5002 650 pF / 2K RAD-0.2 1 C5003, C5004 330 µF RB10/30 2 C5023 10 pF RAD-0.1 1 C5026 10 nF RAD-0.1 1 PMSM and BLDC Demonstration Bill of Materials, Rev. 0 Freescale Semiconductor Preliminary Appendix B-1 Designator Description Footprint Quantity C6037 10 µF / 16V RB2.5/5 1 D1000, D1001 IN4148 DIODE-0.4 2 D2001 BYV26C DIODE-0.4 1 D2002 KBP10 KBP19 1 D2003 IN4148 DIODE-0.4 1 D2005, D2006 MUR420 DIODE-0.5 2 D3000, D3001, D3002, D3003 BAV99 SOT-23 4 D3004 IN4733 DIODE-0.4 1 D5000 IR25XB08H IR25XB 1 D5001 DSEP60-06A TO247AD 1 D5020 IN4001 IN4007 1 D5021, D5022 IN4007 IN4007 2 D5023 IN4004 IN4004 1 D6000, D6001 IN4148 DIODE-0.4 2 D6002, D6003, D6004, D6005, D6006, D6006, D6008, D6009 IN4733 DIODE-0.4 8 F2000 Fuse 2A 250 VAC FUSE20/5/7 1 F5000 Fuse 250V / 20A FUSE20/5/7 1 J2000, J5000 AC INPUT Connectors CON5/3.96 2 J3001 DB9 Connector DB9/M 1 J5002 Power Jumper CON2/3.96 1 JP1000 Jumper HEAD CON5/3.96 1 JP1001 Jumper UVW_OUTPUT UVW 1 JP1002 Jumper LEM (For Debug Purpose) HDR1X3 1 JP1004, JP1005 ADC Channel Jumper HDR1X3 2 JP1006 Jumper Rotor Speed HDR1X3 1 JP1007 Jumper SCI IDC10 1 JP1008 ADC Channel Jumper HDR1X3 1 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 Appendix B-2 Freescale Semiconductor Preliminary Designator Description Footprint Quantity JP1009 ADC Channel Jumper HDR1X3 1 JP1010 DSC Demo Board Connector HDR2X20 1 JP1011, JP1012, JP1013, JP1014 Jumper for Push Button HDR1X2 4 JP1015 Jumper PhaseU_up HDR1X3 1 JP1016 Jumper PhaseU_down HDR1X3 1 JP1017 Jumper PhaseV_up HDR1X3 1 JP1018 Jumper PhaseV_down HDR1X3 1 JP2001 Jumper PowerPlug HDR1X4-5 1 JP4000 LED and DA IDC10 1 JP5003 PFC Driver Jumper HDR1X3 1 JP5020 Jumper Plug for PFC Debug HDR1X4 1 JP6000 Reference Voltage Jumper (1.65 for PMSM and DGND for ACIM) HDR1X3 1 L2002, L2003 3.3 µH IND3.3u 2 L2004 3.3 µH IND 1 L5001 220 µH IND_PFC 1 LED1001 LED OverTemp LEDA 1 LED2001, LED2002 RED LED DISPLAY LEDA 2 LED6001 LED OverCur LEDA 1 LED6002 LED OverBusVol LEDA 1 Q1000, Q5001 PSS8050 TO-92A 2 Q5000 IXTH30N50 TO247AC 1 R1000, R1001 1.2K Ohm AXIAL-0.4 2 R1002 130K Ohm AXIAL-0.4 1 R1004 6.8K Ohm AXIAL-0.4 1 R1008 6.8K Ohm AXIAL-0.4 1 PMSM and BLDC Demonstration Bill of Materials, Rev. 0 Freescale Semiconductor Preliminary Appendix B-3 Designator Description Footprint Quantity R1009 10.2K AXIAL-0.4 1 R1010 300 Ohm AXIAL-0.4 1 R1011 4.7K Ohm AXIAL-0.4 1 R1012 470V 1K Ohm VVR 1 R1013 5.1K Ohm AXIAL-0.4 1 R1014, R1015, R1016 2 Ohm (PMSM) SHANT-0.5 3 R1017, R1018, R1019 0.5 Ohm (ACIM) SHANT-0.5 3 R2000 6.2 Ohm AXIAL-0.4 1 R2001 2K Ohm AXIAL-0.4 1 R2002 200 Ohm / 0.5W AXIAL-0.5 1 R2003 10K Ohm AXILA-0.4 1 R2004 300 Ohm AXIAL-0.4 1 R2005 900 Ohm AXIAL-0.4 1 R3000, R3001, R3002, R3003 800 Ohm AXIAL-0.4 4 R4000, R4001, R4002, R4003, R4004, R4005, R4006, R4007 100 Ohm AXIAL-0.4 8 R4008, R4009 5K Ohm AXIAL-0.4 2 R4010, R6050, R6051 10K Ohm AXIAL-0.4 3 R5002 10 Ohm / 3W R2WV 1 R5003 30K Ohm AXIAL-0.4 1 R5006, R5007 470K Ohm / 2W R2WV 2 R5008 0.02 Ohm SHANT-0.2 1 R5020, R5022 1K Ohm AXIAL-0.4 2 R5021, R5024 6.8 Ohm / 0.5W AXIAL-0.5 2 R5023 120 Ohm / 3W RXWV 1 R6001, R6002 10K Ohm - 0.1% (ACIM) / 200K Ohm - 0.1% (PMSM) AXIAL-0.4 2 R6003, R6004 8.2K Ohm -0.1% (ACIM) / 1M Ohm -0.1% (PMSM) AXIAL-0.4 2 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 Appendix B-4 Freescale Semiconductor Preliminary Designator Description Footprint Quantity R6005, R6024, R6029, R6034, R6039, R6044, R6049 160 Ohm AXIAL-0.4 7 R6008 620 Ohm AXIAL-0.4 1 R6009, R6013 1.2K Ohm AXIAL-0.4 2 R6010, R6014 220K Ohm AXIAL-0.4 2 R6011, R6015 330 Ohm AXIAL-04 2 R6012 620 Ohm AXIAL-04 1 R6016, R6017 300 Ohm AXIAL-04 2 R6020, R6021, R6025, R6026, R6030, R6031, R6035, R6036 7.25M Ohm - 0.1% AXIAL-04 8 R6022, R6023, R6027, R6028, R6032, R6033, R6037, R6038 51K Ohm - 0.1% AXIAL-04 8 R6040, R6041, R6045, R6046 200K Ohm - 0.1% (PMSM) AXIAL-04 4 R6042, R6043, R6047, R6048 1M Ohm - 0.1% (PMSM) AXIAL-04 4 R6052 4.7K Ohm AXIAL-04 1 RP1000 Resistor Pack 8 X 5K Ohm SIP9 1 RV1000, RV6002, RV6003 10K Ohm VRESLV 3 RV2000 100K Ohm VRESLV 1 S1000 Button Function1 BUTTON 1 S1001, S1002 Button Function2 BUTTON 2 S1003 Button Function3 BUTTON 1 TE10 Test point PWM0 SIP-1 1 TE11 Test point PWM1 SIP-1 1 TE12 Test point PWM2 SIP-1 1 TE13 Test point PWM3 SIP-1 1 TE14 Test point PWM4 SIP-1 1 TE15 Test point PWM5 SIP-1 1 TE5022 PGND SIP-1 1 TR2001 APC Transformer TRAN-E133-2 1 PMSM and BLDC Demonstration Bill of Materials, Rev. 0 Freescale Semiconductor Preliminary Appendix B-5 Designator Description Footprint Quantity U13 TC4420 DIP8 2 U1000 MC74HC244 DIP20 1 U1001, U6002 LM293 DIP8 2 U1002 IRAMS10UP60A IRAMS10UP60A-2 1 U2000 TOP223YAI TO-220 1 U2001, U3001, U3002 NEC2501 DIP4 3 U2002 TL431 TL431 1 U3000 TC7660 SO-8 1 U3003 MAX202CSE DIP16 1 U4000, U4001 74HC164 DIP14 2 U4002, U4003 FYQ-3641A LG3641AH 2 U4004 MAX7219 DIP24 1 U5020 IR2125 DIP8 1 U5021 RELAY U6001, U6003, U6004, U6005, U6006, U6007, U6008, U6010 MC33172 DIP8 8 U6009 REF196 DIP-8 1 VR2000 P6KE200 DIODE-0.4 1 1 PMSM and BLDC Sensorless Motor Control using the 56F8013 Device, Rev. 0 Appendix B-6 Freescale Semiconductor Preliminary INDEX A ACIM Preface-xi ADC Analog-to-Digital Conversion Preface-xi B BLDC Preface-xi Brushless DC Motor Preface-xi C COP Preface-xi Computer Operating Properly Preface-xi D DCM Preface-xi Discontinuous Current Mode Preface-xi E IPM Preface-xi Integrated Power Module Preface-xi ISR Preface-xi Interrupt Service Routine Preface-xi L LPF Preface-xi P PFC Preface-xi Power Factor Correction Preface-xi PI Proportional-Integral Preface-xi PLL Preface-xi Phase Locked Loop Preface-xi PMSM Preface-xi Permanent Magnet Syncrhonous Motor Preface-xi Proportional-Integral Preface-xi PWM Preface-xi Pulse Width Modulation or Modulator Preface-xi EMF Preface-xi Electron-Magnetic Force Preface-xi EVM Preface-xi Evaluation Module Preface-xi R F S FOC Preface-xi Field-Oriented Control Preface-xi SCI RMS Preface-xi Root Mean Square Preface-xi HMI Preface-xi Human Machine Interface Preface-xi Serial Communication Interface SCI Preface-xi SMO Preface-xi Sliding Mode Observer Preface-xi SPI Preface-xi Serial Peripheral Interface Preface-xi SV Preface-xi Space Vector Preface-xi SVPWM Preface-xi Space Vector Pulse Width Modulation Preface-xi I V I2C Preface-xi Inter-Integrated Circuit Preface-xi IC Preface-xi Integrated Circuit Preface-xi IGBT Preface-xi Insulated-Gate Bipolar Transistor Preface-xi IM Preface-xi Induction Motor Preface-xi VCE Preface-xi Collector to Emitter Voltage Preface-xi G GPIO Preface-xi General Purpose Input/Output Preface-xi H Index Freescale Semiconductor Preliminary i How to Reach Us: Home Page: www.freescale.com E-mail: [email protected] USA/Europe or Locations Not Listed: Freescale Semiconductor Technical Information Center, CH370 1300 N. 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