In order to maximize the reluctance torque component, multiple-layer flux barriers are usually employed in permanent magnet-assisted synchronous reluctance (PMAREL) motors. However, the permanent magnet (PM) dimension of each layer should be carefully designed to achieve the best performance with the minimum PM material. This article investigates this issue and proposes a method to define the PM width according to the sinusoidal no-load airgap flux density distribution. First, the accuracy of the no-load magnetic circuit for airgap flux density calculation is verified with finite element analysis (FEA), considering single or multiple flux-barriers per pole. The effects of the location, width, and thickness of the PM are investigated separately. Then the PM width is derived by the equations developed from the no-load magnetic circuit. The proposed method reduces both the PM mass and the torque ripple. This approach provides a fast and efficient way to determine the width of the magnets in different layers of flux barriers.


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    Title :

    A Fast Permanent Magnet Width Determination Method for Multiple-Layer Flux-Barrier Permanent Magnet-Assisted Reluctance Machines


    Additional title:

    Sae Int. J. Elec. Veh


    Contributors:


    Publication date :

    2021-06-14


    Size :

    11 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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