Characterized by ultra-fast and arc-free fault clearing, solid state circuit breakers (SSCBs) are getting increasing popularity with the latest development of advanced power semiconductor devices, like the silicon carbide (SiC) MOSFETs. On the other hand, the mature and cost-effective thyristor technology exhibits the beneficial features of low conduction losses, high surge current capability, bidirectional voltage blocking capability, etc., making it a very attractive candidate for SSCB development. However, the conventional thyristors (silicon controlled rectifiers) have no current turn-off capability and need some auxiliary circuits (e.g., LC resonant circuit) or special topology (e.g., Z-source breakers) to be applied in SSCBs. Meanwhile, some active turn-off thyristors (like integrated gate-commutated thyristors, emitter turn-off thyristors, etc.) are specially modified to have current turn off capability, and better suitable for SSCBs. This paper reviews and studies the SSCBs based on the conventional or active turn-off thyristors. The design challenges and performance comparison of SSCBs with different thyristor technologies are also discussed.

中文翻译：

---

晶闸管直流固态断路器综述


固态断路器 (SSCB) 具有超快速、无电弧故障清除的特点，随着碳化硅 (SiC) MOSFET 等先进功率半导体器件的最新发展，越来越受欢迎。另一方面，成熟且具有成本效益的晶闸管技术具有低导通损耗、高浪涌电流能力、双向电压阻断能力等有益特性，使其成为SSCB发展非常有吸引力的候选者。然而，传统的晶闸管（可控硅）没有电流关断能力，需要一些辅助电路（例如LC谐振电路）或特殊拓扑（例如Z源断路器）才能应用于SSCB。同时，一些有源可关断晶闸管（如集成门极换流晶闸管、发射极可关断晶闸管等）经过特殊改造，具有电流关断能力，更适合SSCB。本文对基于常规或有源可关断晶闸管的SSCB进行了综述和研究。还讨论了采用不同晶闸管技术的 SSCB 的设计挑战和性能比较。