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Position control study of a bearingless multi-sector permanent magnet machine

Valente, Giorgio; Formentini, Andrea; Papini, Luca; Zanchetta, Pericle; Gerada, C.

Authors

Giorgio Valente

Andrea Formentini ezzaf1@exmail.nottingham.ac.uk

Luca Papini eexlp4@exmail.nottingham.ac.uk

Pericle Zanchetta pericle.zanchetta@nottingham.ac.uk

C. Gerada chris.gerada@nottingham.ac.uk



Abstract

Bearingless motors combine in the same structure the characteristics of conventional motors and magnetic bearings. Traditional bearingless machines rely on two independent sets of winding for suspension force and torque production, respectively. The proposed Multi-Sector Permanent Magnet (MSPM) motor exploits the spatial distribution of the multi-three-phase windings within the stator circumference in order to produce a controllable suspension force. Therefore, force and torque generation are embedded in the same winding setting. In this paper the force and torque generation principles are investigated and a mathematical model is presented considering the rotor displacement. A two Degree of freedom (DOF) position controller is designed taking into consideration the rotor overall dynamic system and a controller gains selection strategy is suggested. A simulation study of the bearingless system in different operating conditions is presented and the suspension force and torque produced are validated through Finite Element Analysis (FEA).

Publication Date Dec 18, 2017
Peer Reviewed Peer Reviewed
APA6 Citation Valente, G., Formentini, A., Papini, L., Zanchetta, P., & Gerada, C. (2017). Position control study of a bearingless multi-sector permanent magnet machine. doi:10.1109/IECON.2017.8217548
DOI https://doi.org/10.1109/IECON.2017.8217548
Keywords Bearingless machines, Multi-Sector Permanent
Magnet machines, Radial Force Control
Publisher URL https://ieeexplore.ieee.org/abstract/document/8217548/
Related Public URLs http://iecon2017.csp.escience.cn/dct/page/1
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information © 2017 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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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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