Comparative Analysis and Optimisation Design of Flux Reversal Permanent Magnet Machines for In‐Wheel Applications

Yunpeng Zhang; Zhenyang Qiao; Weinong Fu

doi:10.1049/elp2.70092

journal article Open Access Jan 01, 2025

Comparative Analysis and Optimisation Design of Flux Reversal Permanent Magnet Machines for In‐Wheel Applications

Yunpeng Zhang

Zhenyang Qiao

Weinong Fu

IET Electric Power Applications Vol. 19 No. 1 · Institution of Engineering and Technology (IET)

View at Publisher Save 10.1049/elp2.70092

Abstract

ABSTRACT
High torque output capability is crucial for electric vehicle in‐wheel machines. In order to comprehensively evaluate the performance of different out rotor flux reversal permanent magnet (FRPM) machines, a comparative study of two FRPM machines with different topologies is conducted. Different from the conventional consequent pole FRPM machines (CPFRPM), the FRPM machine with auxiliary teeth (ATFRPM) features a stator tooth with a complete piece of permanent magnet (PM) of the same polarity, whereas the adjacent stator tooth is devoid of any PM. The paper introduces the topology structure of the machine using a 24‐slot/22‐pole combination and analyses its operation principle. Geometrical parameters are globally optimised to improve torque performance of FRPM machines. Furthermore, the electromagnetic characteristics of the CPFRPM and ATFRPM machines are compared under the same current density. The ATFRPM machine exhibits superior performance in efficiency, power factor and torque density. Finally, an ATFRPM machine prototype is manufactured to verify the theoretical analysis, and the experimental results confirm the effectiveness of the simulation analysis and optimised design.

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References

Details

Published: Jan 01, 2025
Vol/Issue: 19(1)
License: View

Authors

Y

Yunpeng Zhang

Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China

Z

Zhenyang Qiao

Faculty of Computer Science and Control Engineering Shenzhen University of Advanced Technology Shenzhen China

W

Weinong Fu

Faculty of Computer Science and Control Engineering Shenzhen University of Advanced Technology Shenzhen China

Cite This Article

Yunpeng Zhang, Zhenyang Qiao, Weinong Fu (2025). Comparative Analysis and Optimisation Design of Flux Reversal Permanent Magnet Machines for In‐Wheel Applications. IET Electric Power Applications, 19(1). https://doi.org/10.1049/elp2.70092

Comparative Analysis and Optimisation Design of Flux Reversal Permanent Magnet Machines for In‐Wheel Applications

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