摘要
为实现消弧线圈精确跟踪调谐,适应不同变参调谐方式,提出了跟踪补偿消弧装置变参调谐通用方法。对于通过改变支路阻抗(变参)的形式实现自动跟踪调谐的消弧线圈,测量变参前后零序电压或中性点电流的幅值和相位差即可精确测量电网对地分布总电容和分布总电导,参数的变化可以是电阻或电感单个参数的变化,也可以是电阻和电感2个参数同时变化。由于不受变参形式的影响,在预调式和随调式消弧线圈中均可适用。仿真计算结果表明,该方法可在线实时测量,不影响系统运行,实现了消弧线圈的跟踪控制补偿。
In order to achieve the tracking of the arc-suppression coil precise tuning, adapt to the different variable parameter change tuning method, a general automatic tuning method is raised to change the parameters of arc-suppression coil compensation device. Changing the automatic tracking compensation device＇s resistance or inductance once and measuring the phase variation and amplitude of neutral voltage or current can accurately calculate the power system total distributed capacitance and distributed conductance. Resistance or inductance parameter can changes one or two of the two parameters. Therefore it could be used in the control of a follow resonant or pre-resonant arc suppres- sion coil with a damping resistor or no damping resistor. Simulation resuhs show that this method is a real-time mea- surement, which has little effect on system operation and achieves the tracking control of arc-suppression coil compensation.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2015年第9期1-6,共6页
Proceedings of the CSU-EPSA
基金
国家自然科学基金资助项目(51107143)
关键词
谐振接地
消弧线圈
跟踪调谐
分布电容
分布电导
resonant grounded system
arc-suppression coil
automatic tuning
distributed capacitance
distributed conductance
