Modular Power Sharing Control for Bearingless Multi-Three Phase Permanent Magnet Synchronous Machine

Wen, Zhuang; Di Nardo, Mauro; Sala, Giacomo; Valente, Giorgio; Marfoli, Alessandro; Degano, Michele; Zanchetta, Pericle; Gerada, Chris

Abstract

This paper proposes a modular approach to the power sharing control of permanent magnet synchronous bearingless machine. The selected machine topology features a winding layout with phases distributed into non-overlapping three phase groups, a solution whose twofold aim is to increase the fault tolerance and to allow for the radial force generation. The three phase sub-windings are supplied by standard three-phase inverter, leading to a modular system architecture. A throughout explanation of the methodology used to develop the control algorithm is presented considering the torque and force control in combination with the power sharing management of the machine. Special emphasis is also placed on validating the modelling hypotheses based on a finite element characterisation of the machine electro-mechanical behaviour. The proposed control strategy is also extended to cater the possibility of one or more inverters failure, thus validating the intrinsic advantage of the redundancy obtained by the modularity of the system. An extensive experimental test campaign is finally carried out on a prototyped multi-three phase permanent magnet synchronous drive. The obtained results validate the bearingless power sharing operation in healthy and faulty scenarios, both at steady state and under extreme transient condition.

Citation

Wen, Z., Di Nardo, M., Sala, G., Valente, G., Marfoli, A., Degano, M., …Gerada, C. (2022). Modular Power Sharing Control for Bearingless Multi-Three Phase Permanent Magnet Synchronous Machine. IEEE Transactions on Industrial Electronics, 69(7), 6600-6610. https://doi.org/10.1109/TIE.2021.3097610

• Journal Article Type: Article
• Acceptance Date: Jul 4, 2021
• Online Publication Date: Jul 21, 2021
• Publication Date: Jul 1, 2022
• Deposit Date: Sep 15, 2021
• Publicly Available Date: Sep 15, 2021
• Journal: IEEE Transactions on Industrial Electronics
• Print ISSN: 0278-0046
• Electronic ISSN: 1557-9948
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 69
• Issue: 7
• Pages: 6600-6610
• DOI: https://doi.org/10.1109/TIE.2021.3097610
• Keywords: Electrical and Electronic Engineering; Control and Systems Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/6241564
• Publisher URL: https://ieeexplore.ieee.org/document/9492857
• Additional Information: © 2021 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.