一种抑制IGBT动态均压失衡的方法  

A Method of Inhibiting IGBT's Dynamic Voltage Unbalance

作　　者：张军民 姜齐荣[2] 张春朋[2] 魏义涛 

机构地区：[1]平高集团有限公司,河南平顶山467001 [2]清华大学,北京100000

出　　处：《电力电子技术》2014年第8期51-53,共3页Power Electronics

摘　　要：大容量中压固态切换开关(SSTS)采用多个IGBT串联实现。针对SSTS中多个IGBT串联易引起各个IGBT均压失衡的问题,采用了斜率和峰值综合控制的技术方案。通过样机试验表明,对于中压SSTS,任选2个IGBT测试,当斜率控制在2 kV/μs左右,峰值电压控制在1.1 kV左右时,两者波形曲线基本重合,有效地抑制了链式IGBT均压失衡的问题。Large capacity solid-state transfer switch （SSTS） includes multiple cascade IGBT.Aimed at problem about multiple IGBT cascade easily causing unbalanced voltage, the paper uses slope and peak value control technology, through test of prototype, for mean voltage SSTS, selecting two IGBT to test arbitrarily, when slope is about controled to 2 kV/μs,peak value is about controled to 1.1 kV,the one waveform curves coincides with the other,restraining problem of unbalanced voltage of cascade IGBT effectively.

关 键 词：固态切换开关 均压控制 斜率和峰值控制 

分 类 号：TM56[电气工程—电器]