公开(公告)号：EP3131166A4

公开(公告)日：2017-12-06

申请号：EP14888645

申请日：2014-12-30

申请人： STATE GRID CORP OF CHINA (SGCC) ,  STATE GRID SMART GRID RES INST ,  NORTH CHINA GRID COMPANY LTD

发明人： ZHOU WANDI ,  WEI XIAOGUANG ,  GAO CHONG ,  HE ZHIYUAN ,  ZHANG SHENG

IPC分类号： H02H3/087 ,  H01H33/59

CPC分类号： H02H3/087 ,  H01H33/596

摘要： A passive high-voltage direct-current circuit breaker and an implementation method therefor. The high-voltage direct-current circuit breaker is connected in a direct-current system in series, and comprises an energy absorption branch, a main branch and a current transfer branch which are connected in parallel, wherein the current transfer branch comprises first current transfer branches (T1, T2) and second current transfer branches(T3, T4); the energy absorption branch is composed of a nonlinear resistor (MOV); and the main branch comprises at least two groups of high-speed mechanical switches (Kl, K2) and at least two groups of full controlled device modules which are connected in series. Since the circuit has a simple topology structure, is simple and convenient to control, and is flexible to apply, the energy required by injecting a current into a capacitor can be obtained from a system without configuring an auxiliary power source, thereby improving the reliability of an apparatus. The used power electronic devices are mainly half controlled thyristors, so that the series connection technology is mature, the capability for current segmentation is strong, the level of withstand voltage is high, the expansion capability is strong, and the costs of devices are low.