Title: Vibration noise suppression algorithm of permanent magnet synchronous motor for new energy vehicles

Authors: Zizhen Qiu; Yong Chen; Yuming Guan; Yang Kang

Addresses: School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China ' School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China ' School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China ' School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China

Abstract: Taking the permanent magnet synchronous motor (PMSM) for new energy vehicles as the research object, the causes and mechanisms of electromagnetic vibro-acoustics of fractional-slot PMSM are analysed and summarised. According to the analysis results, a novel control strategy-hysteresis current tracking technology is proposed to suppress the torque ripple and reduce electromagnetic noise. On the basis of the above, the band-stop filter method is introduced to quantitatively analyse the influence of controller parameters. The finite element method is used to study the relationship among the initial phase angle, frequency and amplitude of the electromagnetic force and the injected harmonic voltage of the stator. The analysis and experimental results show that the error rate curve of the proposed algorithm is closer to the curve without phase noise when the phase noise line width is small. The vibro-acoustics can be effectively reduced by injecting the corresponding harmonic voltage with the optimisation results.

Keywords: permanent magnet synchronous motor; new energy vehicles; electromagnetic force vibro-acoustics; control strategy; hysteresis current tracking; band-stop filter; controller parameters; injected harmonic voltage; vibro-acoustics optimisation; spectrum analysis.

DOI: 10.1504/IJHVS.2022.123241

International Journal of Heavy Vehicle Systems, 2022 Vol.29 No.1, pp.48 - 70

Received: 24 Mar 2021
Accepted: 05 Jun 2021
Published online: 06 Jun 2022 *

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