THE RESEARCH ON THE AFFECTION OF THE QINGHAI-TIBET HVDC TRANSMISSION SYSTEM UPON OPERATING CHARACTERISTIC OF THE LINE PROTECTION IN QING-HAI AC ELECTRICAL POWER SYSTEM

摘要：

　　Based on ±400 kV Qinghai-Tibet HVDC transmission system,the paper build a closed loop simulation system used HyperSim system and HVDC control protection device.Used this system,the paper researched the impedance characteristics and harmonic constitute of Qinghai A.C.electrical power system in different faults,analyzed the proportion of harmonic component in voltage and electric while various faults at different point,and studied the impaction of directional protection,differential protection and distance protection for the AC transmission line according to the characteristics of protection operation.

关键词： HVDC closed loop test line protection harmonic component

作者: LI HONGZHI WANGNINGXIA GUO JUNRU

作者单位: Qinghai Electric Power Corporation,NO.89 Shengli Road,Xining City,Qinghai Province,810008

会议类型: 国际会议

会议名称: 第五届中国国际供电会议(GIRED)

会议地点: 上海

会议语种:英文

页码: 1-8

在线出版日期: 2012-09-05（万方平台首次上网日期，不代表论文的发表时间）