Sideband Vibro-acoustics Suppression and Loss Analysis Based on Discontinuous Pulse-width Modulation Strategy in Permanent Magnet Synchronous Motor Hebei University of Technology

Format:

Book

Conference/Event

Author/Creator:

Zhang, Liming, author.

Contributor:

Chen, Yong

Cheng, Haiquan

Wu, Yimin

Zhang, Zhijin

Zhao, Lei

Conference Name:

SAE 2022 Vehicle Electrification and Powertrain Diversification Technology Forum (2022-08-23 : Beijing, China)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2022

Summary:

This paper proposes a hybrid carrier spread spectrum modulation (HCSM) technique based on dynamically adjusting the spatial zero-vectors action time to suppress the sideband vibro-acoustic responses introduced by the discontinuous pulse-width modulation (DPWM) in permanent magnet synchronous motor (PMSM) for electric vehicles (EVs). Firstly, the space vector principle of DPWM is presented, and the relationship between current harmonics and space zero-vectors is analyzed. Then, the HCSM technique is proposed to suppress the current harmonics and vibro-acoustic responses based on the variation trend of zero-vectors action time in six sectors, and the suppression effect of HCSM on sideband components is predicted by the finite element method. Finally, with a 12-slots/10-poles prototype PMSM, the sideband vibro-acoustic responses and the electric drive system loss caused by DPWM and classical space vector pulse-width modulation (SVPWM) before and after using HCSM are analyzed. The results show that the HCSM method can effectively suppress the sideband vibro-acoustic responses caused by the DPWM strategy, and has no obvious effect on the loss of the electric drive system

Notes:

Vendor supplied data

Publisher Number:

2022-01-7045

Access Restriction:

Restricted for use by site license