直流混合型断路器与直流故障限流器的匹配研究  

Study on coordination of DC hybrid circuit breaker and DC fault current limiter

作　　者：张翀[1,2,3] 邱清泉[1,2] 张志丰[1,2] 肖立业[1,2] 夏东[1,2] 

机构地区：[1]中国科学院应用超导重点实验室,北京100190 [2]中国科学院电工研究所,北京100190 [3]中国科学院大学,北京100049

出　　处：《电工电能新技术》2016年第9期21-28,共8页Advanced Technology of Electrical Engineering and Energy

基　　金：国家重点基础研究发展计划(973计划)项目(2015CB251005)

摘　　要：目前,直流断路器的开断容量还难以达到直流电网的要求,通过限流器和断路器的配合是解决问题的有效方式之一。本文在分析混合型直流断路器开断原理及其特性的基础上,对断路器与直流限流器的配合问题进行研究。首先,以ABB公司混合型直流断路器为例,通过PSCAD/EMTDC软件建立仿真模型,对其开断原理和过程进行分析;然后,根据直流电网电压等级、开断电流大小和开断过程IGBT承受电压电流等不同要求,研究限流器对断路器的影响,进而确定匹配原则;最后,通过故障状态分析计算确定限流器的参数。Direct current circuit breaker is an essential equipment for the removal of DC power grid faults,and its breaking capacity is insufficient to meet the requirements of DC power grid. With the cooperation of current limiter and circuit breaker,it can effectively improve the breaking capacity of circuit breaker,ensuring the safe operation of DC power network. Based on the development of the hybrid circuit breaker,the paper studies the coordination of the circuit breaker and the DC current limiter. Firstly,the DC hybrid circuit breaker and its principle are analyzed briefly by PSCAD / EMTDC software. Secondly,according to the DC power grid voltage level,the maximum breaking current and the current of IGBT,the effect of current limiter on circuit breaker are studied,then the matching principle is determined. Thirdly,the values of the current limiting parameters are determined.

关 键 词：直流故障限流器 混合断路器 限流开断 配合 

分 类 号：TM561[电气工程—电器]