Hybrid-Strand Winding Topology With Improved Power Density in Automotive Electric Machines

Dong, Tenghui; Zhu, Chong; Zhang, Xi; Zhou, Fei

doi:10.1109/tie.2021.3091930

Cited by 8 publications

(2 citation statements)

References 32 publications

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“…The authors in refs. [18,19] propose hybrid winding structures that split conductors near the slot opening into multiple strands to reduce winding AC loss. Amara et al split the flat wire winding in the circumferential and radial directions, and the research shows that winding segmentation can effectively reduce EC loss [20].…”

Section: Introductionmentioning

confidence: 99%

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AC losses calculation of parallel multi‐strand flat wire windings for automotive drive motor

Yang,

Liang,

Liu

et al. 2023

IET Electric Power Appl

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Automobile drive motor with flat wire winding has improved the slot fill factor and efficiency. However, under the current environment of drive motors development to high frequency and voltage, the increase in winding AC loss has weakened those advantages. Accurate analysis of AC loss and the design of high‐performance windings have become the key issues and difficulties in the design process of drive motors. Based on the winding AC loss generation mechanism, the authors propose a winding AC loss analysis method, which can effectively separate DC loss, eddy current loss, and circulating current loss. The method is used to analyse winding AC loss of 60 kW flat wire winding permanent magnet synchronous motor (PMSM). In addition, parallel multi‐strand flat wire windings are proposed to reduce the winding AC loss and eliminate the limitation of the magnetic load of the motor on the selection of winding layers. The AC loss of the parallel multi‐strand flat wire windings at different frequencies is calculated, which demonstrates the effectiveness of the proposed winding topology in reducing the winding AC loss. In addition, the correctness of the simulation model was verified through experiments, and the loss calculation method was verified through finite element analysis.

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Section: Introductionmentioning

confidence: 99%

“…The authors in refs. [18, 19] propose hybrid winding structures that split conductors near the slot opening into multiple strands to reduce winding AC loss. Amara et al.…”

Section: Introductionmentioning

confidence: 99%