高压变频器中IGCT的快熔保护

Fuse Protection of IGCT in High Power Inverter

提出利用快速熔断器来实现高压变频器中IGCT器件的保护,在对高压变频器三电平逆变回路发生的“直通”故障分析基础上进行快熔计算选择,并分析所选快熔特性,最后给出结论。

In this paper, the three-level main circuit of HV commutated inverter is analyzed in case of ' DC shoot through' fault and appropriate fuse is chosen to protect IGCT against rupture.