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Title: A novel doubly-fed doubly-salient machine with DC-saturation-relieving structure for wind power generation
Authors: Jiang, J 
Zhang, X 
Niu, S 
Zhao, X 
Issue Date: Jul-2021
Source: IET renewable power generation, 6 July 2021, v. 15, no. 9, p. 2042-2051
Abstract: This paper presents a novel doubly-fed doubly-salient machine (DF-DSM) with DC-saturation-relieving effect for wind power generation application, which possesses the advantages of enhanced torque density, reduced torque ripple and improved power density. The key is that PMs are introduced into the stator slot openings to mitigate the saturation effect in stator core caused by DC field excitation, and relatively large excitation current can be fed into stator field windings, which contributes to improved power density of machine. In addition, with the armature winding artificially connected, the reluctance of all magnetic paths is kept the same, and the variation of self-inductance is compensated, and the torque ripple is greatly suppressed. In this paper, the machine structure and DC-saturation-relieving working principle are introduced. The slot-pole combinations are analysed, and dimension parameters are optimized. By using time-stepping finite-element analysis, the electromagnetic performance of optimal machine is evaluated which verifies the validity of the proposed design.
Publisher: Institution of Engineering and Technology
Journal: IET renewable power generation 
ISSN: 1752-1416
EISSN: 1752-1424
DOI: 10.1049/rpg2.12225
Rights: © 2021 The Authors. IET Renewable Power Generation published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology
This is an open access article under the terms of the Creative Commons Attribution License (, which permits use, distribution and reproduction in any medium, provided the original work isproperly cited.
The following publication Jiang, J., Zhang, X., Niu, S., & Zhao, X. (2021). A novel doubly‐fed doubly‐salient machine with DC‐saturation‐relieving structure for wind power generation. IET Renewable Power Generation is available at
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