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2026-07-05
Structural Design and Performance Optimization of Tangential Magnetization Reverse-Salient Permanent Magnet Synchronous Motors
By
Progress In Electromagnetics Research C, Vol. 171, 420-432, 2026
Abstract
To address the issues of a narrow speed control range and permanent magnet demagnetization in interior permanent magnet synchronous motors (IPMSMs), this paper proposes a tangentially magnetized reverse-salient permanent magnet synchronous motor structure. The reverse-salient permanent magnet synchronous motor features a wide constant power speed control range, strong overload capacity, and resistance to permanent magnet demagnetization. This design resolves the issues of a narrow speed control range and permanent magnet demagnetization by segmenting the permanent magnets to incorporate magnetic bridges and adding magnetic barriers on the q axis. Through parametric analysis, the effects of parameters such as the permanent magnet thickness, the magnetic bridge length, and the magnetic barrier width on the motor's electromagnetic performance are determined, leading to a more significant structural optimization. Finally, finite element simulation is employed to analyze the motor's electromagnetic and mechanical performance. The constant power speed of the tangentially magnetized reverse-salient permanent magnet synchronous motor reaches 3.6 times the rated speed. The theoretical analysis results are consistent with the simulated ones, verifying the effectiveness and feasibility of the new motor's flux-weakening design, which is particularly suitable for high-speed operating conditions.
Citation
Shuang Che, Haitao Wang, Shuai Pang, Xiaodong Zhang, Fenxue Zhao, Beibei Zhu, and Xuewei Jia, "Structural Design and Performance Optimization of Tangential Magnetization Reverse-Salient Permanent Magnet Synchronous Motors," Progress In Electromagnetics Research C, Vol. 171, 420-432, 2026.
doi:10.2528/PIERC26033105
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