拟牛顿法在步进电动机CAD中的应用

The Application of Quasi—Newton Method in CAD of Step Motor

求解非线性磁网络是步进电机 CAD 中的主要工作。本文采用拟牛顿法进行磁网络求解,并结合步进电机 CAD 的特点,给出了处理拟牛顿法振荡或发散现象的方法,提供了加速拟牛顿法收敛的途径,并对如何大幅度提高计算速度问题进行了研究,使得步进电机 CAD 完全可以在普通 PC 上进行。

It is the main work of step motor CAD to find the solution of non-linear magetic network equations.Quasi-Newton method is used to find the solution in this paper. A way to solve the problem of oscillation or divergence and the means to increase the speed of convergence are given,and the study of improving the speed of calculation is done in this paper.The result shows that it is possible to carry out step motor CAD by using general personal computers.