河南天池抽水蓄能电站接地网设计与实测分析  

Design and Analysis of Grounding Grid for Tianchi Storage Power Station

作　　者：罗胤 辛宁 王祖飞 马锋 郑智勇 朱佳定 LUO Yin;XIN Ning;WANG Zufei;MA Feng;ZHENGZhiyong;ZHU Jiading(Henan Tianchi Pumped Storage Co.Ltd.,Nanyang 473000,China;Changsha Kezhi lightning Protection Engineering Co.Ltd.,Changsha 410001,China)

机构地区：[1]河南天池抽水蓄能有限公司,河南省南阳市473000 [2]长沙科智防雷工程有限公司,湖南省长沙市410001

出　　处：《水电与抽水蓄能》2023年第3期106-113,共8页Hydropower and Pumped Storage

摘　　要：由于抽水蓄能电站周边地势条件的限制,接地阻抗测量引线的布置路径较为单一,可选测试方法一般只有电流—电压表三极法中的直线法与夹角法。根据河南天池抽水蓄能电站现场接地阻抗的实测数据,分析了两种测试方法测试值之间以及测试值与计算值之间的误差因素。同时,对大型复合地网对角线长度的选取以及测试电流极辅助地网规模的估算方法提出了建议,具有一定的参考意义。Due to the limitation of terrain conditions around the pumping and storage power station,the layout path of ground impedance measurement leads is few,and the test methods available are generally only the straight line method and the included Angle method。Based on the measured ground impedance data of Tianchi pumped storage power station,the error factors between the measured values and the calculated values of the two test methods are analyzed.Some suggestions are put forward for the selection of diagonal length of large composite ground network and the estimation method of the size of auxiliary ground network with testing current pole.

关 键 词：接地阻抗 对角线 有效长度 互感阻抗 

分 类 号：TM622[电气工程—电力系统及自动化]