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Analytical calculation of air-gap magnetic field in permanent magnet motor with tile-form poles

机译:瓦状磁极永磁电动机气隙磁场的解析计算

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By the equivalent surface current method, the paper get the analytical algorithms of air-gap magnetic field in PM (permanent magnet) motor, which is with tile-form poles and magnetized by different modes. From the results, an ideal flat-roofed wave of air-gap magnetic field is produced under radial magnetization; while, an arc-roofed wave produced under parallel magnetization. Because it's difficult to get magnets under strict radial magnetization in actual process, this paper designs a new shape of poles, which can produce a relative ideal flat-roofed wave under parallel magnetization. Comparing the result of two-dimensional finite element method, it demonstrates the correctness and validity of the discussed analytic method.
机译:通过等效表面电流法,得到了永磁(永磁)电动机的气隙磁场的解析算法。永磁电动机采用的是磁砖形式的磁极,并通过不同的模式进行磁化。结果表明,在径向磁化作用下,产生了理想的气隙磁场平面波。同时,在平行磁化作用下产生了一个弧形屋顶波。由于在实际过程中很难在严格的径向磁化强度下获得磁体,因此本文设计了一种新的磁极形状,在平行磁化强度下可以产生相对理想的平顶波。通过比较二维有限元方法的结果,可以证明所讨论的解析方法的正确性和有效性。

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