HVDC紧急停运时投旁通对策略对中性母线避雷器的影响  

Impact of Bypass Pair Strategy on Neutral-bus Arrester Under Emergency Shutdown of HVDC

作　　者：陈锡磊[1] 田杰[2] 黄志岭[2] 卢宇[2] 袁士超[1] 王东举[1] 周浩[1] 

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]南京南瑞继保电气有限公司,南京211100

出　　处：《华东电力》2010年第9期1355-1358,共4页East China Electric Power

摘　　要：天广±500kV高压直流输电系统逆变站在发生换流变高压端Y/Y线圈阀侧单相接地故障时,如果控制不当,可能超过中性母线避雷器最大通流容量,导致避雷器爆炸事故。对这种故障进行理论分析后,提出了相应的故障控制策略,并通过PSCAD/EMTDC仿真进行了验证,证明了其有效性。When the single-phase ground fault occurs at the Y/Y ceil valve side of the high-voltage terminal of converter transformer in Tian-Guang ±500 kV high voltage direct current transmission（HVDT） system inverter station,if not controlled properly,the discharge capacity of the neutral-bus arrester may exceed the maximum limit,causing explosion accident of it.Based on the theoretical analysis of it,the corresponding fault control strategy was proposed,and was verified to be effective by the simulation of PSCAD/EMTDC.

关 键 词：中性母线避雷器 紧急停运 旁通对 PSCAD/EMTDC 

分 类 号：TM864[电气工程—高电压与绝缘技术]