750kV输电系统操作过电压的统计计算  

Statistical Calculation of Switching Overvoltage in 750 kV Power Transmission Systems

作　　者：黄燕艳[1] 陈梁金[1] 施围[1] 

机构地区：[1]西安交通大学电气工程学院,西安710049

出　　处：《高电压技术》2004年第8期6-8,共3页High Voltage Engineering

基　　金：安交通大学博士基金 (DFXJU2 0 0 0 5 )资助

摘　　要：通过三相数据的相关分析 ,论证了IEC数据处理方法Case peak法可行性 ,研究了次数与精密度的关系。分析了超高压的操作过电压统计分布与避雷器、合闸电阻和线路长度等的关系 ,研究表明其分布较符合正态分布。The correlating coefficients of data of three phases are investigated, and the feasibility of Case-peak in IEC is proved. The relationship between precision and statistical number is researched. The overvoltage statistical distribution is analyzed with different MOA and closing resistor at different line length and shunt compensation degree. They are mostly Normal distribution, but some are extremum distribution and Weibul distribution.

关 键 词：操作过电压 相关分析精度 统计分布 

分 类 号：TM866[电气工程—高电压与绝缘技术] TM732