160 kV超快速机械式高压直流断路器的研制  

Research and Development of 160kV Ultra-Fast Mechanical HVDC Circuit Breaker

作　　者：张祖安 黎小林 陈名 何俊佳[2] 李岩 许树楷 袁召[2] 李艳林 岑义顺 赵晓斌 ZHANG Zu＇an;LI Xiaolin;CHEN Ming;HE Junjia;LI Yan;XU Shukai;YUAN Zhao;LI Yanlin;CEN Yishun;ZHAO Xiaobin(State Key Laboratory of HVDC（Electric Power Research Institute, China Southern Power Grid）, Guangzhou 510663, Guangdong Province, China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology （Huazhong University of Science and Technology）, Wuhan 430074, Hubei Province, China;Siyuan Electric Co., Ltd., Minhang District, Shanghai 201108, China)

机构地区：[1]直流输电技术国家重点实验室(南方电网科学研究院有限责任公司),广东省广州市510663 [2]强电磁工程与新技术国家重点实验室(华中科技大学),湖北省武汉市430074 [3]思源电气股份有限公司,上海市闵行区201108

出　　处：《电网技术》2018年第7期2331-2338,共8页Power System Technology

基　　金：《中国制造2025》项目;中国南方电网公司重点科技项目(CSGTRC-K163004)~~

摘　　要：针对±160 kV南澳多端柔性直流工程对高压直流断路器的实际需求,提出了一种新型的机械式高压直流断路器拓扑,以及160 kV机械式高压直流断路器的技术方案,对其中的关键技术如快速操动机构、多断口串联均压等进行了仿真研究。研制出了160 kV超快速机械式高压直流断路器,提出了采用发电机源提供交流电流来模拟直流故障电流的开断试验电路,并进行了正、反向大电流开断试验。试验结果表明,机械式高压直流断路器成功开断了9.2 k A正向电流,暂态恢复电压峰值达到272 kV,开断时间3.9 ms;成功开断了9.2 kA反向电流,暂态恢复电压峰值达到262 kV,开断时间为4.6 ms。Aiming at actual demand of HVDC circuit breaker in Nan＇ao ±160 kV multi-terminal VSC-HVDC project, a new type of mechanical HVDC circuit breaker topology and scheme of a 160 kV HVDC mechanical circuit breaker were put forward. Key technologies such as ultra-fast electromagnetic repulsion actuator and voltage-grading of multiple breaks in series were studied through simulation. Then a prototype of 160 kV ultra-fast mechanical HVDC circuit breaker was developed and a test circuit using generator source to provide AC current to simulate DC fault current breaking was proposed. Finally, positive and negative high current breaking tests were performed. Experimental results illustrate that the mechanical HVDC circuit breaker successfully interrupts 9.2 kA forward current with peak value of transient recovery voltage（TRV） 272 kV and breaking time 3.9 ms. It also successfully interrupts 9.2 kA reverse current with TRV peak value 262 kV and breaking time 4.6 ms.

关 键 词：多端柔性直流输电 机械式高压直流断路器 电磁斥力操动机构 多断口 均压 开断试验 

分 类 号：TM56[电气工程—电器]