Li, G. orcid.org/0000-0002-5956-4033, Ma, X.Y., Jewell, G.W. et al. (1 more author) (2018) Novel modular switched reluctance machines for performance improvement. IEEE Transactions on Energy Conversion, 33 (3). pp. 1255-1265. ISSN 0885-8969
Abstract
Compared to non-modular machines, modular topologies become increasingly attractive due to their simplified manufacture process, better fault tolerant capability and potentially reduced material consumption. In order to maintain or even enhance the machine performance while achieving high fault tolerant capability, novel modular, single layer winding switched reluctance machines (SRMs) with different pole numbers are proposed, which are supplied by rectangular wave current with different conduction angles. The influences of the pole number and flux gap width between E-core segmented stators on the electromagnetic performance have been investigated in terms of self- and mutual inductances, electromagnetic torque, copper loss, iron loss, and radial force. It has been found that the modular structures with higher rotor pole numbers than stator slot numbers (12-slot/14-pole and 12-slot/16-pole SRMs) can maintain and even improve the average torque due to the nature of self- and mutual inductances. In addition, the torque ripple for modular machines are significantly reduced (below 50%), so do the iron loss and radial force, leading to higher efficiency albeit with potentially lower vibration and acoustic noise. Two prototypes with 12-slot/8-pole and 12-slot/14-pole combinations have been built with both non-modular and modular structures to validate the predictions in terms of inductances and static torques.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 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. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Flux gaps; modular structure; single layer winding; switched reluctance machine |
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: | 08 Dec 2017 11:43 |
Last Modified: | 15 Mar 2024 16:02 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers |
Refereed: | Yes |
Identification Number: | 10.1109/TEC.2018.2790079 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:124847 |