特高压直流母线MOA的电位与电场分布计算  

Calculation of Electric Potential and Field Distribution of UHVDC Bus Bar MOA

作　　者：安翠翠[1] 刘航[1] 王琼[2] 窦小晶 张源斌[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049 [2]江西省电力设计院,江西南昌330000 [3]西北西安输变电运行公司,陕西西安710048

出　　处：《高压电器》2009年第5期9-11,15,共4页High Voltage Apparatus

摘　　要：分析了恒定电场的计算方法;根据特高压直流母线避雷器的结构,建立三维有限元模型,计算了其在直流持续运行电压下的电位电场分布;结果表明,在直流电压下,避雷器电阻片上承担相同的电压,防晕环的主要作用是降低局部产生过高场强和防止电晕;同时对该避雷器的防晕环进行了结构优化。The calculation method of steady-state field was analyzed in the paper. Based on the structure of UHVDC bus bar MOA, a 3-D finite element model was established; the potential and electric filed distribution of the bus bar MOA under the continuous operating voltage was calculated. The result showed that under DC voltage, arrester valves withstand the same voltage; the main effects of anti-corona rings were reduce the partial high electric field strength, and prevent the corona. Meanwhile, the structure of the anti-corona rings was optimized in this paper.

关 键 词：特高压直流 母线避雷器 有限元 

分 类 号：TM862[电气工程—高电压与绝缘技术]