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Torque Optimization of Six-Phase Arcuate Sine + Third Harmonic Shaping Surface Permanent-Magnet Synchronous Motor
ID：75 View Protection：ATTENDEE Updated Time：2024-08-15 10:48:36 Hits：369 Oral Presentation

Start Time：Pending（Asia/Shanghai）

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Abstract
To improve the torque density of direct-drive surface permanent-magnet synchronous motors (SPSMs), the model of arcuate sine + third harmonic (Sin+3rd) shaping SPSM with parallel magnetization and the optimal injection amount of the third harmonic current when the machine loaded with Sine+3rd current are derived. The finite-element models of six-phase arcuate Sine+3rd shaping and sine shaping SPSMs are established based on the principle of the same maximum thickness of the permanent magnet (PM), and their no-load air-gap flux densities are compared. The sine current load and Sine+3rd current load are applied to the sine shaping and Sine+3rd shaping motors, respectively, based on the principle of equal current amplitude. The results show that the fundamental amplitude of no-load air-gap flux density for Sine+3rd shaping SPSM is significantly higher than that of the sine shaping SPSM, and the amplitude of other higher harmonics is unchanged except for the third harmonic. When a rated load is applied, the average torque of the Sine+3rd shaping SPSM loaded with Sine+3rd current is increased by 17.5% compared with the Sine+3rd shaping SPSM which is only loaded with the sine current mentioned above, and is increased by 26.5% compared with the sine shaping motor. The result is consistent with the theoretical calculation and provides theoretical guidance for torque optimization of direct-drive SPSMs.
Keywords
SPSM, parallel magnetization, Sine+3rd shaping, torque optimization
Speaker
wenbin xuan
Student College of Electrical Engineering Qingdao University

Submission Author
Xinzhen Wu College of Electrical Engineering Qingdao University
wenbin xuan College of Electrical Engineering Qingdao University
Chuntao Chen College of Electrical Engineering Qingdao University
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Important Date

  • Conference Date

    Nov 06

    2024

    to

    Nov 08

    2024

  • Sep 15 2024

    Draft paper submission deadline

  • Nov 08 2024

    Registration deadline

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Huazhong University of Science and Technology
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