并联电容器分闸过电压过程研究
Shunt Capacitor Breaking Overvoltage
秦立明 1张明达 1庄建勇 1安磊1
作者信息
- 1. 国网宁波供电公司,浙江宁波 315000
- 折叠
摘要
并联电容器广泛应用于电网的无功补偿,但由于并联电容器退出运行时产生操作过电压会损坏绝缘设备,影响电网的可靠运行.利用ATP/EMTP电力系统暂态仿真软件,建立单相重击穿和三相重击穿系统模型,模拟并联电容器过电压情况,并进行理论计算分析,得出重要结论,为并联电容器选型以及操作提供依据.
Abstract
Shunt capacitors are widely used in power grid reactive power compensation.However,the insulation equipment may be damaged and the reliability of power system operation be affected by the overvoltage generated when shunt capacitor is withdrawing from the sysem operation.The single phase and three phase restrike models are built using ATP/EMTP transient state simulation software,and the overvoltage of shunt capacitor is simulated.Then the conclusion is drawn from the simulation and theoretical calculation,providing basis for the shunt capacitor selection and operation.
关键词
并联电容器/重击穿/过电压Key words
shunt capacitor/restrike/overvoltage引用本文复制引用
出版年
2014
NETL
NSTL
维普
万方数据