交流输电线路架空地线感应电压控制策略研究  

Study on Control Strategy for Induced Voltage of Overhead Ground Wire of Alternating Current Transmission Line

作　　者：毛先胤[1] 彭向阳[1] 张峰[2] 陈锐民[1] 郭希义[3] 

机构地区：[1]广东电网公司电力科学研究院,广东广州510080 [2]广东电网公司,广东广州510060 [3]广东电网公司梅州供电局,广东梅州514011

出　　处：《广东电力》2013年第5期45-51,共7页Guangdong Electric Power

基　　金：广东电网公司科研项目(K-GD2011-432)

摘　　要：为研究限制架空地线感应电压的方法,利用电磁暂态仿真软件ATP-EMTP对单回和双回交流输电线路绝缘架空地线上的感应电压进行仿真分析,研究地线换位和地线分段配合地线接地点的选择对降低地线感应电压的效果。仿真结果表明,单回输电线路可采用地线换位和地线分段来降低地线感应电压,且两者降低感应电压的效果一致;同塔双回输电线路相序排列相同时,宜采用地线分段来降低地线感应电压。For studying method of restricting induced voltage of overhead ground wire, this paper proceeds simulation analysis on induced voltage on insulated overhead ground wires of single circuit AC transmission line and double circuit AC transmission line by using electromagnetic transient simulation software ATP-EMTP. It studies effect to reduce induced voltage of ground wire of ground wire displacement and section which is to match up selection of earth connection point of the ground wire. The simulation result shows that for the single circuit transmission line, it is feasible to use ground wire displacement and section to reduce induced voltage of the ground wire and of both the effects are the same. When the phase sequence of double circuit transmission line arranges alike, it is suggested to use ground wire section to reduce induced voltage of the ground wire.

关 键 词：绝缘架空地线 感应电压 地线分段 地线换位 

分 类 号：TM726[电气工程—电力系统及自动化]