电力系统保护与控制Issue(9):86-90,5.
基于恒定零序电压幅值的消弧线圈调谐新方法
A new tuning method of arc suppression coil based on the constant zero-sequence voltage amplitude
摘要
Abstract
In order to improve the compensation effect of the arc suppression coil, a new tuning method of arc suppression coil based on the constant zero-sequence voltage amplitude is proposed. In this method, the arc suppression coil and resistor are added in the distribution network neutral point. After replacing the resistor, it adjusts the arc suppression coil inductance value, while observes and measures the size of the neutral point offset voltage rms, to coordinate the further adjustment of the arc suppression coil. When the neutral point offset voltage rms is identical before and after replacing the resistor, simultaneous equations, the sum of the capacitance to ground CΣand the sum of the resistance to ground gΣ in the distribution network can be accurately obtained, thus to determine the value of arc suppression coil fully compensated inductor L 0 . Matlab simulation and theoretical calculation verify that the method can obtain a more precise compensation effect. This method has the advantages of simple operation, high accuracy, good compensation effect, so it can be applied to the areas of arc suppression coil tuning.关键词
幅值/消弧线圈调谐/电感值/中性点偏移电压/测量效果Key words
amplitude/arc suppression coil tuning/inductance value/neutral point offset voltage/effect of measure分类
信息技术与安全科学引用本文复制引用
李涛,苗晓鹏,李晓波..基于恒定零序电压幅值的消弧线圈调谐新方法[J].电力系统保护与控制,2014,(9):86-90,5.基金项目
国家自然科学基金 ()