基于局部预冷技术的混合式直流断路器电力电子开关性能提升方法

Insufficient current capability is the most serious problem faced by power electronic devices in hybrid dc circuit breaker (HCB), where the junction temperature rise is the main restriction. This letter proposes a novel performance enhancement method for power electronic switch in HCB based on partial precooling. By applying thermoelectric cooling technology, the temperature of power electronic de...