电测与仪表2012，Vol.49Issue(5)：21-24,4.
基于双信号注入法的配电网电容电流测量
Measurement for Capacitance Current in Distribution Network Based on Double-signal Injection
摘要
Abstract
This paper introduces a method about measuring capacitance by way of injecting double signals with different frequencies into the secondary side of PT in distribution network. By measuring the voltage parameter in low-voltage side of PT and analyzing equivalent circuit, we can write equations by Vector calculation. With the method to obtain the value of capacitance which is ideal-to-ground in distribution network, and thus the value of capacitance current in distribution network is known. By the simulation analysis, the method is proved current. In the end the method is put into the engineering practice, and the approaches of reducing error are given in the realized for engineering.关键词
配电网/电容电流测量/双信号注入法/误差优化Key words
distribution network/ capacitance current measurement/ double signal injection method/ error reducing分类
信息技术与安全科学引用本文复制引用
程玉凯,杜文凤..基于双信号注入法的配电网电容电流测量[J].电测与仪表,2012,49(5):21-24,4.基金项目
国家自然科学基金资助项目(51107143) （51107143）
