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Title: Design and analysis of a doubly salient wound field starter generator for cost-effective automobile application
Authors: Cai, Shun
Wang, Yu
Chen, Hao
Yuan, Xin
Yu, Li
Zhang, Zhuoran
Lee, Christopher Ho Tin
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2022
Source: Cai, S., Wang, Y., Chen, H., Yuan, X., Yu, L., Zhang, Z. & Lee, C. H. T. (2022). Design and analysis of a doubly salient wound field starter generator for cost-effective automobile application. IEEE Transactions On Vehicular Technology, 71(7), 6900-6911.
Project: NRF-NRFF12-2020-0003 
Journal: IEEE Transactions on Vehicular Technology 
Abstract: Doubly salient wound field machines exhibit the advantages of robust structure and controllable flux, and hence have been utilized as generators in applications of automobiles and renewable energy. However, the inherent unbalanced phase back-electromotive force (EMF) waveform caused by the asymmetric flux path brings difficulties for precise control and smooth operation. To solve the problem caused by unbalanced back-EMF waveform in conventional doubly salient machines, this paper presents a novel doubly salient wound field machine with balanced and symmetrical back-EMF waveform as starter generator in automobile application. The robust structure and the controllable flux are inherited, while the magnetless feature makes it promising for cost-sensitive applications. The proposed machine can be operated as an assistant motor for torque boosting at start-up stage, as well as a power recycling generator for battery charging at steady state. It is revealed that the proposed wound field machine exhibits similar cost, comparable torque density, improved torque ripple, and higher efficiency than the switched reluctance machine. Finally, the proposed prototype is fabricated, and dynamic experiment is conducted to validate the feasibility for automobile starter generator application.
ISSN: 0018-9545
DOI: 10.1109/TVT.2022.3163403
Schools: School of Electrical and Electronic Engineering 
Rights: © 2022 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. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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