中文摘要：

在分析双通道开关磁阻电机单极性不对称励磁方式时不同通道间相邻相互感作用的基础上,提出双极性增磁和双极性弱磁两种双通道开关磁阻电机励磁方法,并说明基本工作原理。基于场路耦合有限元模型分析单极性不对称励磁、双极性弱磁和双极性增磁励磁方式时双通道开关磁阻电机的磁场特性,求解三种不同励磁方式时双通道开关磁阻电机的电流、转矩、铜耗和铁耗等电磁性能并进行了对比分析。研究结果表明,双极性弱磁和增磁励磁控制时,比双通道开关磁阻电机单极性励磁时输出对称性好,且单位铁耗下输出功率大,综合比较,双极性弱磁控制时双通道开关磁阻电机性能最优。

英文摘要：

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,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,copper losses and iron losses were calculated and contrastive analyses were made. The results show that the symmetry of the dual-channel switched reluctance machines under bipolar excitation is better than the unbipolar asymmetric excitation,and the output power is higher than that of the unbipolar asymmetric excitation. Overall,the performance of the dual-channel switched reluctance machines under bipolar weakened magnetism excitation is optimal.