TCSC装置中电容器过负荷保护的改进算法

The improved algorithm of capacitor overload protection of TCSC

介绍了可控串联补偿(TCSC)电容器装置的电容器过负荷保护的基本原理,重点就电容器过负荷倍率与允许持续时间的算法问题进行了较详细的讨论,分析了过去采用求过电流均值算法时,若过电流幅值波动较大而存在精度方面不足的问题上,提出了一种更合理的改进算法———加权积分法,最后通过动模实验验证了该算法的合理性。

The paper introduces the overload protection principle of TCSC-based devices, and discusses the relationship between the capacitor overload rate and the duration time in detail. After analyzing the shortage that the larger of the amplitude fluctuation of overcurrent, the less accuracy of the former algorithm, it expounds a simple but effective overload algorithm——weighted and integral method ,which has been proved reasonable by simulating dynamic experiments.