A Comparative Analysis of Switching Losses of High Voltage IGBTs in Solid State Transformer Applications

반도체 변압기를 위한 고압 IGBT의 스위칭 손실 특성 비교

Solid State Transformer(SST) has been recently regarded as a good alternative to conventional low frequency transformer. SST is consist of several high voltage power stage, so it is important to select optimal semiconductor switches for specification. This paper presents optimal IGBT switches for low switching losses using analyzing switching characteristics of several high voltage IGBT switches. Double Pulse Tester(DPT) experiment is used to verify characteristics of this IGBT switches.