Reuse of a Damaged Permanent Magnet Synchronous Motor for Torque Ripple and Acoustic Noise Elimination using a Novel Repetitive Observer

Tang, Mi; Odhano, Shafiq; Formentini, Andrea; Zanchetta, Pericle

Abstract

A permanent magnet synchronous motor (PMSM) has its bearing damaged and is irreversibly demagnetized due to overcurrent. Due to the changes in its electromagnetic configuration, the motor suffers from extremely high torque ripple, which produces intolerable speed ripple and acoustic noise. The aim of this paper is to evaluate if a repetitive observer (RO) can be used to smooth the rotational speed and suppress acoustic noise. The RO is functionally the same as a repetitive controller (RC), but is preferred due to its simplicity of tuning. Its effectiveness of reducing acoustic noise will be evaluated in this paper for the first time. Experimental test results show that the speed ripple and acoustic noise are reduced significantly. The work opens the possibility of reusing the damaged motor and still achieve high performance. The RO can also be applied to enhance the fault tolerance capability of a healthy motor.

Citation

Tang, M., Odhano, S., Formentini, A., & Zanchetta, P. (2019). Reuse of a Damaged Permanent Magnet Synchronous Motor for Torque Ripple and Acoustic Noise Elimination using a Novel Repetitive Observer. https://doi.org/10.1109/ecce.2019.8912822

• Conference Name: 2019 IEEE Energy Conversion Congress and Exposition (ECCE)
• Start Date: Sep 29, 2019
• End Date: Oct 3, 2019
• Acceptance Date: May 3, 2019
• Online Publication Date: Nov 28, 2019
• Publication Date: Sep 29, 2019
• Deposit Date: Feb 10, 2020
• Publicly Available Date: Feb 11, 2020
• Publisher: Institute of Electrical and Electronics Engineers
• ISBN: 9781728103952
• DOI: https://doi.org/10.1109/ecce.2019.8912822
• Public URL: https://nottingham-repository.worktribe.com/output/3939897
• Publisher URL: https://ieeexplore.ieee.org/document/8912822
• Additional Information: © 2019 IEEE.Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.