用Calahan法求解MOV保护绕组的波过程

Study for the Wave Process in Windings with MOVUsing the Calahan MethodWen Yuanfang

用ＭＯＶ限制绕组过电压是一种非常有效的方法。本文在建立含ＭＯＶ保护绕组波过程的状态方程基础上，采用半隐格式Ｃａｌａｈａｎ法计及Ｍｏｖ的ｕ－Ｉ特性两种处理方法以及分块求递技术得到波过程的特性，数值分析分别与解析解和实验值作了比较，表明本文方法是可靠的。

This paper has given equations of windings by MOV protection. The equations have been solved byusing the semi-expiccit and semi-implicit scheme Calahan method .In the opreating process thetwokinds of expression methods for the u-I characterstic and the solution to partitioning reversal matrixhave been used. The characteristic of the wave process in windings with MOV is obtained .Tocomparewith the results from the other method and the experiment shows that the above mentioned methodis re-liable. And it if verfied that the restraining overvoltage in windings by MOV is very effective .