基于三频率法的配电网电容电流测量新方法  

A new method to measure capacitance current in distribution network based on three-frequency method

作　　者：周求宽[1] 姚骏[2] 刘衍[1] 谭义[2] 周友武[1] 康琛[1] 

机构地区：[1]国网江西省电力科学研究院,南昌330096 [2]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044

出　　处：《电测与仪表》2017年第10期44-49,共6页Electrical Measurement & Instrumentation

基　　金：国网江西省电力公司项目(52182014002L01K1360000)

摘　　要：基于三频率法的研究分析,本文提出了一种更加安全、简单且快捷的配电网电容电流测量新方法。文章首先对所提新方法的测量原理进行了详细推导。在此基础上,深入分析了频率选取对电容值测量结果的影响。最后,通过实验验证了所提配电网电容电流测量新方法在较宽范围内电容值测量计算的可行性和准确性。Based on the research of the three-frequency method, a new method to measure capacitance current is pro- posed in this paper, which is safer, simpler and rapider than the traditional method. Firstly, the measurement princi- ple of this proposed method is deduced in detail. On this basis, the influence of the frequency selection on the meas- urement results of the capacitance is analyzed. Finally, the feasibility and accuracy of the proposed method in a wide range of capacitance measurement calculation are verified by the experiment tests.

关 键 词：配电网 电容电流测量 电压互感器 三频率法 频率选取 

分 类 号：TM93[电气工程—电力电子与电力传动]