A fractional delay variable frequency repetitive control for torque ripple reduction in PMSMs

Tang, Mi; Gaeta, Alberto; Formentini, Andrea; Zanchetta, Pericle

Abstract

Based on the internal model principle, repetitive controller (RC) is capable to reduce periodic torque ripple by generating a compensating action that consequently need to be synchronized with the original ripple. However, the synchronization is difficult to achieve using the conventional RC when the sampling frequency is not integer multiple of the speed (known as fractional delay issue), or when the speed varies widely. To solve this problem, this paper presents a fractional delay variable frequency torque ripple reduction method for PMSM drives using the combination of angle-based RC and deadbeat current control (DBCC). Four aspects of innovations are included in the proposed control to improve the synchronization. The experimental results show that the proposed control can effectively reduce torque ripple even during speed and load transient.

Citation

Tang, M., Gaeta, A., Formentini, A., & Zanchetta, P. (in press). A fractional delay variable frequency repetitive control for torque ripple reduction in PMSMs. IEEE Transactions on Industry Applications, https://doi.org/10.1109/TIA.2017.2725824

• Journal Article Type: Article
• Acceptance Date: Jul 4, 2017
• Online Publication Date: Jul 11, 2017
• Deposit Date: Aug 2, 2017
• Publicly Available Date: Aug 2, 2017
• Journal: IEEE Transactions on Industry Applications
• Print ISSN: 0093-9994
• Electronic ISSN: 0093-9994
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• DOI: https://doi.org/10.1109/TIA.2017.2725824
• Keywords: Deadbeat control, Repetitive control, Variable speed drives, Permanent magnet machines, Torque ripple reduction
• Public URL: https://nottingham-repository.worktribe.com/output/872160
• Publisher URL: https://doi.org/10.1109/TIA.2017.2725824
• Additional Information: c2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works.