Optimal design of hybrid consequent-pole permanent magnet motor to reduce torque ripple

Author:

Guo Liyan1,Xiao Sen1,Wu Shuang2,Wang Huimin1

Affiliation:

1. , Tiangong University, , China

2. , Tianjin University, , China

Abstract

Compared with the surface-mounted permanent magnet (SPM) motors, the consequent-pole permanent magnet (CPM) motors can obtain the approximate output torque on the basis of saving 30% PM material. However, due to the special arrangement of the CPM motor, its torque ripple is large, which will affect the smooth operation of this kind of motor. Therefore, this paper proposes a hybrid consequent-pole permanent magnet (HCPM) motor with an auxiliary PM on one side of the iron pole, which can reduce the torque ripple and ensure smooth operation effectively. In order to make the performances of proposed motor better, the Taguchi method is used to optimize the proposed HCPM motor. Furthermore, the influence rule and the relative importance of each optimization variable on the optimization goal are obtained by the average value analysis and the variance analysis, respectively. According to the above analysis results, the optimized hybrid consequent-pole permanent magnet (OHCPM) motor is obtained. Finally, the performances of SPM motor, CPM motor, and OHCPM motor are compared to verify the validity of the proposed structure.

Publisher

IOS Press

Subject

Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,Electronic, Optical and Magnetic Materials

Reference24 articles.

1. Modeling and analyzing of magnetic field in unequal segmented halbach array permanent magnet machine;Guo;International Journal of Applied Electromagnetics and Mechanics,2021

2. A dual consequent pole variable flux vernier machine for wide speed range;Kwon;International Journal of Applied Electromagnetics and Mechanics,2019

3. Design and analysis of a double consequent pole changing vernier machine;Lee;International Journal of Applied Electromagnetics and Mechanics,2020

4. Optimal PM arc ratio determination and vector-control of vernier machine with consequent pole rotor;Zhang;International Journal of Applied Electromagnetics and Mechanics,2020

5. Flux-focusing permanent magnet machines with modular consequent-pole rotor;Li;IEEE Transactions on Industrial Electronics,2020

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