In this paper, the method of calculating the saturated synchronous reactance by the finite element for the polyphase salient pole synchronous machine is presented. Finally, taking a twelve-phase salient pole synchronous generator as an example, the saturated synchronous reactance is calculated by this method. 本文阐述了采用有限元法计算多相凸极同步电机饱和同步电抗的方法,最后以一台十二相凸极同步发电机为例,用这种方法对饱和同步电抗进行了计算。