CONTENTS Power Electronics 3 5 6 14 20 26 29 31 35 40 45 48 51 56 61 65 76 Application Devices High Efficient Transformerless Small Power Solar Inverter Design Abstract: Efficiency is becoming increasingly important in solar inverter design. The design concept to improve efficiency is introduced in this article for single phase small power solar inverter. The application notes and simulation results are also provided based on Vincotech new developed module FZ06BIA045FH-P897E. Key words: Solar inverter Efficiency Power module 3kW 4000 [1] ( 26 | Power Electronics 1) 1% [2] 120 Application Devices IGBT 70% MOSFET boost MOSFET 5kW SiC 500V SiC ( 2) ( 3) Vincotech FZ06BIA045FH-P897E [3] Boost MOSFET(600V/45m ) SiC Boost H 75A/600V IGBT MOSFET(600V/45m SiC ) Boost H IGBT 5 50Hz IGBT PWM Boost 16KHz IGBT IGBT IGBT IGBT Power Electronics | 27 Application Devices (T5 D8 (D7) D9) boost MPP H C4 MOSFET(T2 T4) 100Hz H H H 50Hz SPWM 10nF (C5) IGBT Mosfet IGBT ( ) MOSFET L1 L2 (DM) ( 6) ( (L1) C1 28 | Power Electronics (CM) C2 8) Application System A (1) /MW /m /(m/s) /(m/s) /(rad/s) /(kg.m2 ) / / /H /H /H /(N.m) /MW /V /Hz /(kg.m 2) 1.5 40 3 25 1.5 9 ×107 100 0.01 0.01 95.5 × 106 95.5 ×106 0.0955 1× 106 1.5 690 50 90 2 9.9188 ×10−5 2.631× 10−5 0.06 / /H /F L1 11 IGBT Vincotech 8 Field Application Manager Vincotech Asia Pacific Sales Center [1] Martin St?dler, Regenerative Energiesysteme \ PV \ System & Kosten; ( ) 23.01.2008. : [2] LOPEZ-POLO, Assun; MARKET DRIVERS F R PIN = 2kW fPWM = 16kHz NETZGEKOPPELTE PV-ANLAGEN IM INTERNATIONALEN VPV-nominal = 300V VDC = 400V VERGLEICH; Technische Universit?t Wien, Energy Economics IGBT =>EE: 97.2% ( boost Inverter) 98.8% Group. Gu?hausstr. 25-29/373-2, A-1040 Wien. [3] FZ06BIA045FH Target Datasheet, www.vincotech.com. Power Electronics | 39