摘要：在分析了单极性不对称励磁方式时双通道开关磁阻电机的不同通道间相邻相互感作用的基础上，提出了双极性增磁和双极性弱磁两种新的双通道开关磁阻电机励磁方法，并介绍了其基本原理。基于场路耦合有限元模型分析了单极性不对称励磁、双极性增磁和双极性弱磁三种不同励磁方式时双通道开关磁阻电机的磁场特性，对比了三种不同励磁方式时双通道开关磁阻电机的电流，转矩，铜耗等电磁性能，并通过双频法分离铁心损耗获得三种励磁方式时电机铁心的涡流损耗和磁滞损耗，由此得到了三种励磁方式时双通道开关磁阻电机的电磁性能。

关键词：双通道开关磁阻电机；励磁方式；电流；转矩；损耗
Abstract: Two novel excitation strategies which are bipolar enhanced magnetism excitation and weakened magnetism excitation for dualchannel switched reluctance machines were proposed and their fundamental principle were introduced based on the analysis of mutual inductance under unbipolar asymmetric excitation in this paper, and the magnetic fields of dualchannel switched reluctance machine were compared under three different excitation strategies by using fieldcircuit finite element analysis. Phase Currents, torques and copper losses were calculated, and eddy current losses and hysteresis losses were separated from iron losses of dualchannel switched reluctance machine using the double frequency method with three kinds of excitation strategies, respectively. And effects of excitation strategies on electromagnetic performance of dualchannel switched reluctance machine were investigated in the paper.
Key words: dualchannel switched reluctance machine; excitation strategy; torque; current; iron loss