Optimization Design of Rotor Structure for Synchronous Reluctance Motor Based on Taguchi Method

The synchronous reluctance motors have the advantages of a smooth rotor surface, low rotational inertia, fast dynamic response, low cost, simple and reliable structure. However, they have the disadvantages of large torque ripple and low power factor. This paper focuses on the rotor structure optimization using the Taguchi method and the finite element method. Firstly, the basic structure and working principle of synchronous reluctance motors are introduced, and the finite element model is established. Next, the optimized parameters are analyzed. The Taguchi method is introduced, and its feasibility is confirmed. Then, the range of optimization factors is determined, the orthogonal experiments with the Taguchi method to explore the effects of total flux barrier layers, radial bridge width, and flux barrier angle on torque performance are designed. Finally, the calculation of different optimization schemes is completed, and the calculation results are analyzed. The optimal combination of control factors and the optimal control solution are determined.