铁磁谐振过电压的计算机辅助分析

The Computer Aided Analysis for the Ferroresonant Overvoltage

铁磁谐振过电压是电力系统中常见的一种过电压,必须设法予测和避免。本文介绍了一种予测方法,即在模拟的故障情况下,借助计算机,利用 Runge—Kutta 法解系统的非线性状态方程,根据求出的中性点位移电压判断系统是否发生铁磁谐振过电压。

The ferroresonant overvoltage is one kind of the overvoltages in the power system,therefore it must be predicted and avoided.This paper introduces a predicted method:Under the imitated fault,we use the Runge-Kutta method to resolve the non-linear state equation of the sys- tem by the computer,then we determine whether ferroresonance occured according to the shift voltage of the neutral point.