数值仿真在变电站接地网安全性状态评价中的应用  

Application of Numerical Simulation in Security Evaluation of Substation Grounding Grids

作　　者：李谦[1] 肖磊石[1] 饶章权[1] 

机构地区：[1]广东电网公司电力科学研究院.广州510080

出　　处：《高压电器》2013年第10期133-140,共8页High Voltage Apparatus

摘　　要：针对目前变电站接地网评价手段较为单一的现状,总结了接地分析软件在接地网安全性状态评价中的应用,指出数值分析可以弥补现场实测的不足,在地网状态评价、设计和运行维护中具有现场实测无法替代的作用,采用现场实测和理论计算相结合的办法,可以实现接地网安全性状态评价,顺应电力设备状态检测和状态检修的形势要求。介绍了接地分析软件应用于变电站接地网评价的基本流程和接地网状态评估案例。Aiming at the situation that the method to evaluate grounding grid＇s safety in substation is simplex currently, the application to use grounding analysis software in grounding grid＇s safety evaluation is summarized. Numerical analysis can compensate for the deficiency of field test and plays a irreplaceable role in grounding grid＇s evaluation, design and running attention, where field test is not so good. Using a method combining field test and theoretical arithmetic, the solution of grounding grid＇s safety evaluation is proposed, which complies with the needs of state inspection and condition-based maintenance for equipment. The basic processes and evaluation application cases of grounding network under the analysis software is also presented.

关 键 词：数值仿真 变电站 接地网 状态评价 应用 

分 类 号：TM862[电气工程—高电压与绝缘技术]