特高压直流换流站避雷器配置方案研究  

Research on arrester protection scheme for UHVDC converter station

作　　者：沈扬[1] 陈锡磊[2] 陆华[3] 王东举[2] 周志超[1] 丁健[1] 钱锋[1] 

机构地区：[1]浙江省电力设计院,浙江杭州310014 [2]浙江大学电气工程学院,浙江杭州310027 [3]杭州市电力局,浙江杭州310009

出　　处：《能源工程》2011年第5期14-17,共4页Energy Engineering

摘　　要：基于目前的最新进展,给出了两种典型的避雷器布置方案,分析了两个方案对最高端换流变阀侧不同保护方式的优缺点。从避雷器持续运行电压、荷电率、冲击保护水平和能量要求等方面论述了避雷器参数选取应该考虑的因素,并指出按照逆变站实际运行电压来选取避雷器参考电压,可以降低逆变站避雷器的保护水平和设备绝缘水平,降低设备制造成本。Based on the latest research of UHVDC converter station insulation coordination,two arrangement schemes of arrester were introduced,and the differences between the protection of the highest potential converter transformer valve-side in two schemes were analyzed in detail.From the aspects of continous operating voltage,electric load rate,protection level and energy demand,the factors which should concern in selecting arrester parameters were discussed.The protection levels and insulation levels of equipment decrease if the arresters＇ reference voltage was selected according to the actual operating voltage of inverter converter station.As a result,the cost of equipment manufacture will reduce.

关 键 词：特高压直流输电 绝缘配合 避雷器布置 

分 类 号：TM712[电气工程—电力系统及自动化]