单相高效无变压器式光伏逆变器的设计理念 High Efficient

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