中性点不接地配电网故障过电压分析  

Over-voltage analysis of faulted distribution networks with insulated neutral

作　　者：毕见广[1] 郭永基[1] 孙元章[1] 董新洲[1] 

机构地区：[1]清华大学电机系,北京100084

出　　处：《继电器》2001年第12期1-4,共4页Relay

摘　　要：针对中性点不接地配电网络系统 ,分析了发生单相接地故障时的过电压特性 ,着重分析了网络不对称参数对过电压特性的影响 ,给出了故障时网络电压的变化特点 ,利用电力系统仿真计算软件NETOMAC ,对上述分析进行了仿真计算。并利用MATLAB对仿真数据进行分析 。In accordance with distribution networks with insulated neutral point, over-voltage characteristics is analyzed when the line is single-line grounded in this paper. Especially, the influence of asymmetrical parameters on over-voltage is mentioned. The variation of the line-voltages is analyzed when the line is faulted. Simulation and calculation verifies the validity of analysis by means of NETOMAC and MATLAB.

关 键 词：配电网 过电压 仿真 中性点不接地系统 电力系统 

分 类 号：TM771[电气工程—电力系统及自动化]