The use of conventional magnets for commercial fusion reactors is ruled out . 商业聚变反应堆上使用常规磁体已不予考虑。
2.
The equivalent magnet circuit network ( emcn ) method is based on combination between conventional mec and fem . the conventional magnet circuit method transfer the field in electrical machine into magnet circuit to analyze and calculate the parameters and performance of electrical machine . the emcn splits the magnet circuit into many elements according to the different flux distribution in the machine 等效磁网络法的思想是来源于有限元法和等效磁路法的结合，传统的等效磁路法是把磁场转化为磁路计算，而有限元法是把电机内部根据磁场分布的不同，把求解区域划分成各个单元，因此，等效磁网络法是结合两者的优点而提出来的。
