柔性直流系统断路器保护配合研究  

Research on Protection Coordination Between Flexible DC System and Breaker

作　　者：陈名 朱童[2] 黎小林 许树楷 张祖安 赵宇明 刘国伟 余占清[2] 曾嵘[2] 吕纲[2] 陈政宇[2] 张翔宇[2] 

机构地区：[1]南方电网科学研究院,广州510080 [2]清华大学电机系电力系统国家重点实验室,北京100084 [3]南方电网深圳供电局,深圳518001

出　　处：《高压电器》2015年第11期33-40,共8页High Voltage Apparatus

基　　金：国家863高技术研究发展计划(2013AA050103)~~

摘　　要：文中针对直流断路器与柔性直流系统的保护配合进行分析,理论分析了保护配合可行的策略和方式,进而针对不同电压等级下的直流系统实例,结合断路器样机测试结果,利用PSCAD/EMTDC仿真软件分析了极间短路故障时保护配合对系统参数和断路器参数的要求。仿真结果表明,不同保护策略下对系统耐受能力和直流断路器开断性能要求不同,需要根据系统特点选择不同的保护策略。This paper has focused on the flexible DC distribution system and DC breaker protection coordination.Feasible strategies and methods of protection coordination have been analyzed. At the same time, based on theactual system with different voltage levels and the circuit breaker prototype test results, the requirements on theparameters of the system and the breaker during the inter poles fault transient process have been analyzed inPSCAD/EMTDC. The results show that there are different requirements on system withstand capability and breakerbreaking performance with different protection strategies; And the appropriate protection strategies should beselected according to the system characteristics.

关 键 词：柔性直流系统 直流断路器 故障保护 保护配合 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM561