Radial force control of Multi-Sector Permanent Magnet machines considering radial rotor displacement

Valente, G.; Papini, L.; Formentini, A.; Gerada, C.; Zanchetta, P.

Abstract

A mathematical model enabling to predict the electromagnetic x-y forces and torque for a given input current in a Multi-Sector Permanent Magnet Synchronous (MSPMS) machine is presented. The rotor static eccentricity is also accounted and the analytical calculations are validated by means Finite Element Analysis (FEA). Furthermore, a novel force and torque control is proposed based on input current minimization and is applied to suppress the Unbalanced Magnetic Pull (UMP) caused by the rotor eccentricity. The effective operation of the force suppression technique is verified by means of FEA.

Citation

Valente, G., Papini, L., Formentini, A., Gerada, C., & Zanchetta, P. (2017). Radial force control of Multi-Sector Permanent Magnet machines considering radial rotor displacement. In 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD). https://doi.org/10.1109/WEMDCD.2017.7947737

• Conference Name: 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)
• Conference Location: Nottingham, United Kingdom
• Start Date: Apr 20, 2017
• End Date: Apr 21, 2017
• Acceptance Date: Mar 21, 2017
• Online Publication Date: Jun 15, 2017
• Publication Date: Apr 20, 2017
• Deposit Date: Aug 2, 2017
• Publicly Available Date: Aug 2, 2017
• Peer Reviewed: Peer Reviewed
• Book Title: 2017 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)
• ISBN: 9781509058532
• DOI: https://doi.org/10.1109/WEMDCD.2017.7947737
• Keywords: Radial force control, static eccentricity, stiffness matrix
• Public URL: https://nottingham-repository.worktribe.com/output/856796
• Publisher URL: http://ieeexplore.ieee.org/document/7947737/
• Additional Information: (c) 2017 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.