基于直流高压测量技术的多功能线路参数测试方法  

Multifunctional line parameter testing method based on DC high voltage measurement technology

作　　者：汤建华 王雷兵 宋波 刘素伟 郭文奇 练建安 Tang Jianhua;Wang Leibing;Song Bo;Liu Suwei;Guo Wenqi;Lian Jian'an(State Grid Chuzhou Power Supply Company,Anhui Chuzhou,239000,China)

机构地区：[1]国网滁州供电公司,安徽滁州239000

出　　处：《机械设计与制造工程》2024年第6期91-94,共4页Machine Design and Manufacturing Engineering

摘　　要：在电压及电流感应较大的高压线路中,为了实现直流电阻和绝缘电阻的准确测量,并为接头质量校核以及线路距离故障定位提供有效数据,研究了基于直流高压测量技术的多功能线路参数测试方法。采用高压直流输电线路串联参数分布模型和矩阵束算法,得到线路中直流电阻和绝缘电阻参数结果,实现线路串联参数测试。测试结果显示:该方法工频参数测量性能良好,测量结果与标准结果的最大差值仅为0.000 9,直流电阻和自感的测量误差均在1%以内,绝缘电阻的测量误差最大为6.5%,能够为故障定位提供有效数据。In high-voltage lines with high voltage and current induction,in order to achieve accurate measurement of DC resistance and insulation resistance,and provide effective data for joint quality verification and line distance fault location,a multifunctional line parameter testing method based on DC high-voltage measurement technology is studied.Using a parameter distribution model and matrix bundle algorithm for high voltage direct current transmission lines,the results of DC resistance and insulation resistance parameters in the line are obtained,and the testing of line series parameters is achieved.The test results show that the method has good performance in measuring power frequency parameters,and the maximum difference between the measurement results and the ideal standard results is only 0.0009.The measurement errors of DC resistance and self inductance are both within 1%,and the maximum measurement error of insulation resistance is 6.5%,which can provide effective data for fault location.

关 键 词：直流高压 测量技术 线路参数测试 串联参数 测量回路 

分 类 号：TM315[电气工程—电机]