一种新型电容缓冲式混合高压直流断路器的设计与仿真  

Design and Simulation of a New Type of Capacitance Buffering Hybrid HVDC Circuit Breaker

作　　者：赵文婷[1] 袁召[1] 方帅[1] 喻新林 邵敏[1] 何俊佳[1] 潘垣[1] 张宁 单云海 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,武汉430074 [2]国网智能电网研究院,北京102200

出　　处：《高压电器》2015年第11期41-46,共6页High Voltage Apparatus

摘　　要：研发能够快速开断大电流,可靠性和经济性好的高压直流断路器成为构建多端直流电网的主要技术瓶颈。文中提出了一种新型电容缓冲式混合高压直流断路器的两种不同开断模式,分析了相对高压直流断路器主流拓扑方案所做的改进;通过PSCAD仿真模型,对比了无弧开断模式和燃弧开断模式的优缺点;最后指出了该种高压直流断路器仍需研究的问题。To develop high reliable and economical HVDC circuit breakers that can fast interrupt the large DC faultcurrent becomes the main technical bottlenecks of building multi terminal DC grid. In this paper, two differentinterrupting modes of a new type of capacitance buffering hybrid HVDC circuit breaker are proposed. Theimprovement on the basis of main programs of HVDC circuit breakers are analyzed. Through PSCAD simulationmodel, the advantages and disadvantages of interrupting with arcing and interrupting without arcing are compared.At last, the issues remaining to be studied of the HVDC circuit breakers are proposed.

关 键 词：混合直流断路器 缓冲电容 燃弧开断 无弧开断 PSCAD 

分 类 号：TM561[电气工程—电器]