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Smart Current Limitation Technique for a Multiphase Bearingless Machine with Combined Winding System

Wen, Zhuang; Valente, Giorgio; Formentini, Andrea; Papini, Luca; Zanchetta, Pericle; Gerada, Christopher

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Authors

Zhuang Wen

Giorgio Valente

Andrea Formentini

Luca Papini



Abstract

This paper presents a current limitation technique for a multiphase bearingless machine featuring a combined winding system. This winding structure allows each machine phase to produce both suspension force and motoring torque. Compared to more conventional systems where two separate windings are adopted for the force and torque generation, the combined winding one leads to higher compactness and simpler manufacture. The main challenges with the combined winding configuration consist of decoupling the force and torque generation and designing a proper current limitation algorithm. The former topic has been already tackled and presented in previous publications, instead the latter will be addressed in this paper. In particular, the so called smart limitation technique will allow to prioritize either the suspension force or the torque generation. In this paper the priority is given to the rotor levitation, hence the suspension force rather than the torque is essential. The technique can be extended to give priority to the torque generation in further work and can be applied to any multiphase bearingless machine with similar winding structures. Finally, simulation results and experiment validation are provided.

Citation

Wen, Z., Valente, G., Formentini, A., Papini, L., Zanchetta, P., & Gerada, C. (2019). Smart Current Limitation Technique for a Multiphase Bearingless Machine with Combined Winding System. In Proceedings of 2019 IEEE Energy Conversion Congress and Exposition (ECCE) (6099-6105). https://doi.org/10.1109/ECCE.2019.8913291

Conference Name 2019 IEEE Energy Conversion Congress and Exposition (ECCE)
Conference Location Baltimore, MD, USA
Start Date Sep 29, 2019
End Date Oct 3, 2019
Acceptance Date May 3, 2019
Online Publication Date Nov 28, 2019
Publication Date Sep 1, 2019
Deposit Date Feb 6, 2020
Publicly Available Date Mar 29, 2024
Pages 6099-6105
Series ISSN 2329-3748
Book Title Proceedings of 2019 IEEE Energy Conversion Congress and Exposition (ECCE)
ISBN 978-1-7281-0396-9
DOI https://doi.org/10.1109/ECCE.2019.8913291
Public URL https://nottingham-repository.worktribe.com/output/3910885
Publisher URL https://ieeexplore.ieee.org/document/8913291
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.

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