Radial Electromagnetic Force Reduction Strategy Based on Random PWM Switching Frequency for PMSM Drives
Space vector pulse width modulation (SVPWM) is widely used in control of permanent magnet synchronous motor (PMSM). However, the unexpected harmonic current generates high-frequency radial electromagnetic force, so as to lead to the stator surface vibrations and noise. In order to alleviate this problem, a radial electromagnetic force reduction strategy based on random PWM switching frequency is proposed in this paper. Firstly, the high-frequency harmonic current and high-frequency radial electromagnetic force generated by SVPWM are quantitatively analyzed. And then, by using Beta probability distribution algorithm to randomly change the PWM carrier period, the spectrum of high-frequency harmonic current can be effectively scattered, thereby reducing the peak value of harmonic electromagnetic force. Finally, co-simulation results of Simulink and Maxwell verify the effectiveness of the proposed strategy.
Authors
- Qipeng Tang (ORCID: https://orcid.org/0000-0002-7968-3275)
- Winston Wang (ORCID: https://orcid.org/0000-0003-3672-1507)
- Anwen Shen (ORCID: https://orcid.org/0000-0003-2180-0181)
- Mingzhen Zhang (ORCID: https://orcid.org/0000-0002-5624-1511)
- Xin Luo (ORCID: https://orcid.org/0000-0003-1154-1905)
Institutions
- Huazhong University of Science and Technology (CN)
Publication Details
- Published
- 2024-12-12
- DOI
- https://doi.org/10.1109/icarcv63323.2024.10821586
- Primary Topic
- Electric Motor Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00