特高压直流输电线路差动保护改进方案

夏经德,罗金玉,高淑萍,焦作滨,邵文权,黄新波

Improved scheme for differential protection of UHVDC transmission lines

Jing-de XIA,Jin-yu LUO,shu-ping GAO,zai-bin JIAO,wen-quan SHAO,Xin-bo HUANG

图 5 正极线路中点发生金属性接地故障时的仿真结果

Fig.5 Simulation results at positive pole when metallic ground fault occurs at middle of line