基于变频信号法的中压电网失谐度微机测量装置的研究  

The research of computer device for degree of disresonance in a medium voltage distribution network based on injecting various frequency current

作　　者：吴韬 高峰[2] 

机构地区：[1]浙江平湖市供电局,浙江平湖314200 [2]华北电力大学电气工程学院,河北保定071003

出　　处：《仪器仪表用户》2006年第3期12-13,共2页Instrumentation

摘　　要：本文采用新的补偿电网失谐度测量原理,利用失谐度的外加扫频信号自动测量方法,并结合微机系统迅速、准确的特点,无需其它参数,即可完成对失谐度的直接测量。测量结果准确,误差不大于0．60％;测量速度快, 调谐精度高,适应面广,并实现了测试过程与电网运行双方互不相扰,为在此基础上进行消弧线圈的自动跟踪调谐奠定了良好的基础。This paper adopts the new measure principle about degree of disresonance in compensated network to bring to success in measuring degree of disresonance directly,which is based on the way of automative measure of additional sweeping frequency for degree of disresonance,combining its characters of computer device is qucik and accurate,especially without other parameters. The measure result error is not bigger than 0.60% and this principle is not affected by system operetion,so it has high precision and abroad application,whic h is laid the good foundation for automatic follow and tune of arc extingushing coil.

关 键 词：消弧线圈 失谐度 微机装置 变频信号 

分 类 号：TM930.9[电气工程—电力电子与电力传动]