永磁辅助磁阻同步电机性能分析

Performance analysis of permanent magnet assisted reluctance synchronous machine

为了准确分析永磁辅助磁阻同步电机的动态特性,针对永磁辅助磁阻同步电机本体,给出一种基于有限元建模分析方法。通过有限元建模分析得出其D-Q轴磁链、自感和互感等数据,利用这些有限元分析数据推导出永磁辅助磁阻同步电机的数学模型。在此基础上为了进一步提高永磁辅助磁阻同步电机的动态转矩响应,特别设计了具有电流反馈补偿的负载转矩观测器,并对其进行了研究和建模仿真。仿真结果表明,永磁辅助磁阻同步电机具有很好的动态性能。

For accurately analyzing the dynamic characteristics of the permanent magnet assisted reluctance synchronous machine （PMA RSM） , considering the body of the machine, a modeling method based on finite element is proposed for the PMA RSM. The paper conducts a finite element analysis of its D-Q axis flux linkage, the self inductance, the mutual inductance. The mathematical model of the PMA RSM is derived and explained in physical terms from analytical data. To further improve the dynamic performance of the PMA RSM, a load torque observer with compensation current feedback is investigated. The derivation of the load torque observer and the detail designs of the observer elements are given. The accurate simulation model of the PMA RSM is used to verify the operation of the observer structures and to evaluate the dynamic performance.