并联电容器组同步关合最佳目标相位的确定

The Investigation on Optimal Making Phase for Synchronous Closing Shunt Capacitor Banks

分析了断路器绝缘特性和合闸时间分散性对并联电容器组同步关合的影响;建立数学模型,给出了根据断路器关合特性和合闸时间偏差确定电容器组同步关合最佳目标相位的方法。根据建立的数学模型,计算了在不同关合特性和开关合闸时间偏差下的同步关合最佳相位和对应的最大开关预击穿电压,为电力系统中电容器组的同步关合控制系统设计提供了理论依据。

This paper analyses the influences of the closing time scatter and dielectric characteristic of circuit breaker on synchronous energizing shunt capacitor banks. And a math model is given to determine the optimum closing instant of synchronous energizing capacitor banks in terms of the making characteristic of circuit breaker and the deviation of the operating time. Based on the given math model, the optimal closing phase and the maximum switching transient are given under the different making characteristics and deviations of the operating time. The results can provide some theoretic proofs for the design of control system of synchronous energizing shunt capacitor banks in power system.