基于EMTP/ATP的35kV并联电容器组内部过电压研究  

Study on Internal Overvoltage of 35 kV Capacitors Bank Based on EMTP/ATP

作　　者：张广东[1] 温定筠[1] 汪沨[2] 王锋[3] 张玉刚[3] 杨军亭[1] 张玉[1] 

机构地区：[1]国网甘肃省电力公司电力科学研究院,甘肃兰州730050 [2]湖南大学电气与信息工程学院,湖南长沙410082 [3]国网甘肃省电力公司,甘肃兰州730020

出　　处：《电力电容器与无功补偿》2017年第1期45-49,60,共6页Power Capacitor & Reactive Power Compensation

摘　　要：并联电容器已被广泛地应用于电力系统中进行无功功率补偿,在其投入和退出运行时在补偿装置内部会产生过电压和过电流,甚至损坏电容器组绝缘,影响电网的安全稳定运行。文章利用EMTP/ATP电力系统暂态仿真软件,建立了330 kV变电站无功补偿仿真模型,模拟断路器同期和不同期分闸时电容器组内部过电压情况。Shunt capacitors are widely used in power system for reactive power compensation. However,the overvoltage and over current will be generated in the compensation device during its switch-on and switch-off operation,even the insulation of capacitor bank can be damaged and the safe and stable operation of the power grid is affected. In this paper,based on transient simulation software of EMTP/ATP power system,the reactive power compensation simulation model of 330 kV substation is set up to simulate the internal overvoltage of capacitor bank at synchronous and asynchronous opening of circuit breaker.

关 键 词：暂态仿真 断路器重燃 电容器组过电压 

分 类 号：TM53[电气工程—电器]