Mutual coupling effect between different winding modules causes undesirable effects for the fault tolerant machine drives, such as current distortion, torque ripple, and increased fault current. In this article, a mixed-pitch segregated winding configuration is presented for a triple modular fault tolerant permanent magnet (PM)-assisted synchronous reluctance machine (PMA-SynRM). It exhibits less mutual coupling effect between the different winding sets, which leads to improved fault tolerance compared to the existing full-pitched segregated windings. The mutual coupling effect is described by deriving the magnetomotive force (MMF) profile, and the fault tolerant performance improvement is proven by detailed finite-element (FE) analysis and prototyping tests in healthy and various fault conditions. The results confirm that the presented winding machine has the same healthy performance as the conventional full-pitched windings, and it operates in a more balanced manner with less current distortion and lower turn fault current. It will become a more competing candidate for the safety critical applications.


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    Title :

    A Low Coupling Fault Tolerant PMA-SynRM With Mixed-Pitch Segregated Windings


    Contributors:
    Wang, Bo (author) / Feng, Xiaobao (author) / Bao, Jiayao (author) / Xu, Wenhan (author) / Wang, Jiabin (author) / Hua, Wei (author) / Cheng, Ming (author) / Niu, Shuangxia (author)


    Publication date :

    2022-12-01


    Size :

    3782464 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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