Li, G.J. orcid.org/0000-0002-5956-4033, Zhu, Z.Q. orcid.org/0000-0001-7175-3307, Ma, X.Y. et al. (1 more author) (2016) Comparative Study of Torque Production in Conventional and Mutually Coupled SRMs Using Frozen Permeability. IEEE Transactions on Magnetics, 52 (6). 8103509. ISSN 0018-9464
Abstract
This paper investigates the influence of mutual fluxes (inductances) on the resultant torque in three-phase conventional switched-reluctance machine (CSRM) and mutually coupled SRM (MCSRM) using the frozen permeability (FP) method. Under saturation conditions, the FP method allows accurately separating the torques due to self-flux and mutual flux, hence quantifying their contributions to torque generation. Then, appropriate current waveforms (unipolar or bipolar, square wave or sinewave) can be established to maximize the output torques. It is well known that the mutual torque of CSRM can be negligible. However, this paper has shown that when sinewave current is employed and under full or overload conditions, the torque will be significantly reduced due to non-negligible negative mutual torques. Different from CSRM, the self-torque and the mutual torque of MCSRM can be added if current waveform is properly chosen, e.g., sinewave currents. This can significantly boost the resultant torque. The predictions have been validated by experiments.
Metadata
Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 IEEE. This is an author produced version of a paper subsequently published in IEEE Transactions on Magnetics. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Finite element (FE); frozen permeability (FP); mutually coupled switched-reluctance machine (MCSRM); non-linear; self-torque/mutual torque |
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: | 10 Aug 2016 14:43 |
Last Modified: | 20 Mar 2018 19:32 |
Published Version: | http://dx.doi.org/10.1109/TMAG.2016.2516967 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers |
Refereed: | Yes |
Identification Number: | https://doi.org/10.1109/TMAG.2016.2516967 |
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