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Rotor loss reduction using segmented inverter in surface-mounted permanent magnet drive

Al-Ani, Mahir, Barrans, Simon and Carter, J. (2017) Rotor loss reduction using segmented inverter in surface-mounted permanent magnet drive. Proceedings of the 2017 IEEE International Electric Machines and Drives Conference (IEMDC) 2017.

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In this paper, the influence of different switching modulation arrangements, i.e. current waveform modulation- and phase-shift, on the resultant current waveform of an electrical machine drive consisting of a two segment inter-leaved inverter feeding a surface-mounted permanent magnet (SPM) machine with two identical sets of three phase windings is investigated. The modulation- and phase-shift have been illustrated and the influence of the different modulation and frequency indices have been studied. Furthermore, the torque, and rotor eddy currents and core losses are calculated using FEA when either modulation-shifted or phase-shifted current waveforms are generated and fed to the machine. It is found that using modulation-shift can reduce the current harmonic substantially however the inverter requires two sets of input signals. On the other hand, although the current harmonic reduction is less than that of the modulation-shift, the phase-shift layout can be employed using one set of input signals with a signal delay.

Item Type: Article
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.
Uncontrolled Keywords: Inter-leaved inverter; Segmented inverter; SPM; Surface-mounted; Loss reduction; Eddy current loss
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Schools: School of Computing and Engineering
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Depositing User: Mahir Al-ani
Date Deposited: 07 Jun 2017 08:40
Last Modified: 26 Mar 2018 16:46


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