最新高效率光伏逆變器拓?fù)浣Y(jié)構(gòu)及功率器件介紹pdf

1、 最新高效率光伏逆變器拓?fù)浣Y(jié)構(gòu)及功率器件介紹 1 引言1111 3kw240001%120400043kw1%30w4×30=120“”2 功率器件的選型igbtigbtigbtigbtigbtmosfetmosfetsicsic 3 光伏逆變器的設(shè)計(jì)目標(biāo)(1)(2)(3)70%boost4 單相無(wú)變壓器式光伏逆變器拓?fù)浣榻B4kw500v232 3boosthigbt50hzigbtmosfetpwmboost16khz4.13(1)(2)(3)4.2(1)boost(2)igbt 4vincotechflowsol-bi p896-e014 flowsol-bi boost4.3(

2、1) boost(2)mosfet(600v/45m)sicboost(3) h(4)75a/600v igbtsicmosfet(600v/45m)5 單相無(wú)變壓器光伏逆變器專(zhuān)用模塊flowsol0-bi的效率計(jì)算boostpin=2kwfpwm = 16khzvpv-nominal = 300vvdc = 400v5 6(boost+inverter)98.8% 98%65 boostee=99.6%6 flowsol-bi-ee=99.2%igbt-ee=97.2% ()6 三相無(wú)變壓器光伏逆變器拓?fù)浣Y(jié)構(gòu)介紹71000v 71000v1200v1200v600v(npc=neutral

3、pointclamped)8600v1200v8npcboostnpc(1)boost9 9 flowsol-npbboostboostmosfet(600v/45 m)sicboost(2) npc(10)10 flowsol-npi -npc75a/600vigbtmosfet(600v/45 m)sicboostnpcdc+ dc-boostnpcnpc10kw11boost 11boostnpc1000vnpc12npc(mosfet+igbt)1200vigbt12 npc()()npc99.2%96.4% npc7 下一代光伏逆變器拓?fù)涞脑O(shè)計(jì)思路介紹 hmosfet igbt(1)

4、(2)(3)7.1h(13)13igbt50hzmosfet16khz99.22kwetmosfetmosf13igbt50hz14 14vincotechigbtflowsol0-bi open e (p896-e02)1515 flowsol0-bi-open e (p896-e02)(1)mosfet(600v/45m)igbt(600v/75a)14sic(2)boost(3) h(4)sicmosfet(600v/45 m)mosfetigbt mosfet2kw0.2%99.4%125mosfetmosfet125mosfetrds-onfred fetrds-on1616sic22kw16mosfet7.2npc2kw(17)99.2%(2) 171200v18d3 d4sic18npc 1200vsic1919npc(2sicd54si)600vsicd4 d6d3sid7d8sisicmosfetmosfet2020mosfetnpc21mosfet2kw 21mosf