CAJ | 학술논문

研究了基于电力电子复合开关的限流式混合直流断路器。采用电力电子复合开关，以降低高压混合式直流断路器的电力电子功率器件串联数量；采用特殊设计的限流电路，在故障发生时抑制短路电流的上升速率，并可在线路断开后自行释放能量，避免感应过电压的产生。同时，对限流式混合直流断路器的参数设计原则及复合开关的配置方法进行了详细的推导，并对其正确性进行仿真验证。仿真结果证明，采用文中所述方法进行限流式混合直流断路器的设计，不仅可以在直流电路发生短路故障时有效限制短路电流上升率，降低短路电流开断难度，还可以显著减少器件串联数量，从而达到降低装置体积与成本的目的。
연구료기우전력전자복합개관적한류식혼합직류단로기。채용전력전자복합개관，이강저고압혼합식직류단로기적전력전자공솔기건천련수량；채용특수설계적한류전로，재고장발생시억제단로전류적상승속솔，병가재선로단개후자행석방능량，피면감응과전압적산생。동시，대한류식혼합직류단로기적삼수설계원칙급복합개관적배치방법진행료상세적추도，병대기정학성진행방진험증。방진결과증명，채용문중소술방법진행한류식혼합직류단로기적설계，불부가이재직류전로발생단로고장시유효한제단로전류상승솔，강저단로전류개단난도，환가이현저감소기건천련수량，종이체도강저장치체적여성본적목적。
A current limiting DC hybrid circuit breaker(CB) based on a combinatorial electronic power switch is studied.The combinatorial electronic power switch is designed to reduce the series connecting number of power electronic devices,a specifically designed current limiting circuit is used to arrest the rising speed of the fault current.Another contribution of this paper is the parameter design of the CB and the configuration of the combinatorial switch.The accuracy of the method is proved by the simulation results,showing that the proposed CB is not just able to limit the current rising rate when fault occurs,it significantly reduces the volume and cost of power electronic devices. This work is supported by National High Technology Research and Development Program of China (863 Program) (No.2013AA050103).