电力系统保护与控制2025，Vol.53Issue(12)：128-138,11.DOI:10.19783/j.cnki.pspc.241087
具备快速重合闸能力的低损耗低成本双向固态式直流断路器
A low-cost bidirectional solid-state DC circuit breaker with low power loss and fast-reclosing capability
摘要
Abstract
Compared to fully controlled semiconductor devices,thyristors offer advantages in terms of power loss,cost,and surge current tolerance,making them an increasingly popular choice for designing DC circuit breakers.To address the common issues found in existing thyristor solid-state DC circuit breakers,such as poor controllability,low reliability,high conduction losses,and the inability to meet reclosing requirements,a new solid-state DC circuit breakers with fast reclosing capability is proposed.First,the circuit structure and working principle are introduced,and then the mathematical models are established and the parameter design principles of each component are provided.Next,the performance and cost of the topology are compared with the existing schemes,and the electrical stress of the key components in each scheme is analyzed through simulation.Finally,a prototype testing platform is built.Experimental results show that the proposed topology can reliably interrupt fault current,and effectively ensure the safe reclosing in DC systems.关键词
直流配电网/故障保护/晶闸管/固态式直流断路器/重合闸Key words
DC distribution grid/fault protection/thyristor/solid-state DC circuit breaker/reclosing引用本文复制引用
王顺亮,李明,辛清明,秦科军,王鹏,马俊鹏,刘天琪..具备快速重合闸能力的低损耗低成本双向固态式直流断路器[J].电力系统保护与控制,2025,53(12):128-138,11.基金项目
This work is supported by the"Digital Power Grid"Open Fund Project of China Southern Power Grid Co.,Ltd.(No.DPGCSG-2024-KF-41). 中国南方电网有限责任公司"数字电网"开放基金项目资助(DPGCSG-2024-KF-41) （No.DPGCSG-2024-KF-41）
