谐波平衡有限元算法的研究

Finite Element Method Using Harmonic Balance

为解决具有饱和铁芯的交变电磁场的计算需要较大的存储量和较长的计算时间的问题，提出了一种适用于交变电磁场谐波问题分析的新的有效算法．谐波平衡有限元算法是有限元算法与谐波平衡方法的结合，其计算过程类似于非线性静态场．该方法适用于任意阶多项式描述的磁化曲线问题的求解．通过对一电抗器的计算。

A finite element scheme using harmonic balance is developed for analyzing magnetic field described by polynomial. The algorithm is similar to that used for the nonlinear DC magnetic field. This is in contrast to the AC magnetic field calculation involving saturation characteristics that would requires much iteration and memory space. The method is applied to compute the magnetic field of a reactor.