摘要
为了降低直流固态断路器的经济成本,介绍了基于晶闸管的直流固态断路器的工作原理,并在理论分析的基础上,结合仿真给出了主晶闸管、换流回路、MOV等主要部件参数优化设计方法,提出了一种在线充电、自监测触发的改进方案,与不同器件方案固态断路器进行了经济性比较。结果表明:该改进方案采用快速晶闸管、脉冲电容等常规器件代替了昂贵的全控型器件,以较低的成本实现了短路电流毫秒内的限流分断,满足直流电力系统的快速保护需求。
In order to reduce the cost of DC solid circuit breaker,firstly,the working principle of DC solid circuit breakers based on thyristors was introduced.Secondly,on the basis of theoretical analysis,the optimal design method of main thyristors,commutation loop and MOV parameters were presented combined with simulation.An improved scheme of on-line charging and self-monitoring triggering was proposed,and the economics of solid state circuit breakers with different device solutions were compared.The results show that the improved scheme replaces the expensive full-control device with conventional devices such as fast thyristors and pulse capacitors,and thus realizes the current-limiting and breaking of the short-circuit current within a millisecond at a low cost,which meets the requirements of rapid protection of DC power systems.
作者
刘路辉
詹行行
吴楠
付立军
LIU Lu-hui;ZHAN Hang-xing;WU Nan;FU Li-jun(National Key Laboratory of Science and Technology on Vessel Integrated Power System,Naval Univ.of Engineering,Wuhan 430033,China)
出处
《海军工程大学学报》
CAS
北大核心
2021年第1期9-13,共5页
Journal of Naval University of Engineering
基金
国家自然科学基金资助项目(51607184)。
关键词
直流
固态断路器
晶闸管
DC
solid circuit breaker
thyristor
作者简介
刘路辉(1986-),男,副研究员,博士,主要研究方向为舰船综合电力系统技术;通信作者:詹行行(1996-),男,硕士生,978837907@qq.com。
