Ye, C., Yang, J., Xiong, F. et al. (1 more author) (2019) Relationship between homopolar inductor machine and wound-field synchronous machine. IEEE Transactions on Industrial Electronics. ISSN 0278-0046
Abstract
The homopolar inductor machine (HIM) has attracted recent interest in the field of flywheel energy storage system due to its merits of robust rotor and low idling losses. In some situations, the analytical methods of a conventional wound-field synchronous machine (WSM) can be used to analyze the HIM, but the clear explanation about why these can be done and the relationship between HIM and WSM were not given in the literature. To address these issues, this paper studies the HIM based on the basic theoretical model and equations. Firstly, the structure and magnetic circuit characteristics of HIM are introduced. Secondly, the mathematical model of HIM is derived and then decomposed, which indicates that the HIM can be seen as a WSM with large end leakage inductance when rotor tooth width θt≤π/p , or a combination of WSM and synchronous reluctance machine (SynRM) when θt>π/p Thirdly, the performance indexes of HIM and corresponding equivalent machines, including air-gap flux density, back electromotive force and inductance parameters, are analyzed and fully compared. Finally, an HIM is prototyped and tested on an experimental platform. The simulation and experiment results show that it is reasonable to regard the HIM as a WSM or a combination of WSM and SynRM. The conclusion gives a transparent explanation about the relationship between HIM and WSM, which helps to simplify the analysis of the HIM.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 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. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Equivalent model; homopolar inductor machine (HIM); wound-field synchronous machine (WSM) |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 14 Jun 2019 13:43 |
Last Modified: | 15 Feb 2020 01:39 |
Status: | Published |
Publisher: | IEEE |
Refereed: | Yes |
Identification Number: | 10.1109/tie.2019.2898577 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:146795 |