摘要
介绍了传统的消弧线圈自动调整方法。提出采用注入变频信号 ,寻找系统谐振频率 ,测量补偿度、电容电流 ,进行消弧线圈自动跟踪调谐的新方法。测量时无需调整消弧线圈挡位。能适用于老式消弧线圈补偿度的测量。在一个配电网中只需安装一台自动调整消弧线圈 ,就能实现整个配电网的自动调谐 ,无需通信配合。该技术已在现场运行多年 。
A new method for Petersen--coil tuning based on injecting valious frequency currents and searching for theresonance frequency is presented. The appropriate coil position is calculated simply by the resonance frequency. It need notchange Petersen-coil taps to measure capacitlve current. And it can be used in large distribution system. which contain manyPetersen--coils. The total capacitive current can be measured only by selecting one Petersen--coil to inject signal current. Theprototype for Petersen--coil tuning has been tested on the network for many years.This technology has taken out Chinese New Pattern Utility Patent (ZL96235018. 4).
出处
《电力系统自动化》
EI
CSCD
北大核心
2000年第9期38-41,共4页
Automation of Electric Power Systems
基金
国家实用新型专利! ( ZL 962 3 5 0 18.4)
关键词
消弧线圈
注入信号法
自动调谐
配电网
compensated networks
Petersen-coil
tuning
measuring with injection signal
