To improve output torque ability and reduce torque ripple in traditional synchronous reluctance motor (TSynRM), a new synchronous reluctance motor (NSynRM) is proposed in this paper. The rotor of NSynRM is composed of both grain-oriented silicon steel and non-oriented silicon steel. With the reasonable design of rotor structure, the torque of NSynRM has been improved and its torque ripple has been reduced greatly. Firstly, TSynRM and NSynRM are qualitatively compared by using the magnetic network method. Secondly, the main parameters of these two machines are optimized by using finite element method (FEM). Then the performance comparison between two optimized machines are carried out. Finally, the equivalent stress of these two machines at the maximum speed are analyzed. It can be seen that NSynRM can have 6.8% higher torque under rated load, 8% higher torque under maximum load, 17.5% wider constant torque operation region, and lower torque ripple compared with the TSynRM.

中文翻译：

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新型同步磁阻电机的设计与性能分析

为了提高传统的同步磁阻电动机（TSynRM）的输出转矩能力并减少转矩脉动，本文提出了一种新型的同步磁阻电动机（NSynRM）。NSynRM的转子由取向硅钢和非取向硅钢组成。通过合理的转子结构设计，改善了NSynRM的转矩，大大降低了转矩脉动。首先，利用磁网络方法定性比较了TSynRM和NSynRM。其次，通过有限元方法（FEM）优化了这两台机器的主要参数。然后在两个优化的机器之间进行性能比较。最后，分析了这两个机器在最大速度下的等效应力。可以看出，在额定负载下，NSynRM的扭矩可提高6.8％，