2-D Exact Analytical Model for Surface-Mounted Permanent-Magnet Motors With Semi-Closed Slots
2-D Exact Analytical Model for Surface-Mounted Permanent-Magnet Motors With Semi-Closed Slots
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DOI：
10.1109/tmag.2010.2095874
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发表时间：
2011-02
影响因子：
2.1
通讯作者：
T. Lubin;S. Mezani;Abderrezak Rezzoug
中科院分区：
文献类型：
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作者：
T. Lubin;S. Mezani;Abderrezak Rezzoug
提出了一种计算半封闭槽永磁电机磁场分布的解析子域模型。所提出的模型是足够一般的使用与任何极和槽的组合，包括分数槽机分布或集中绕组。该模型准确地考虑了电枢反应磁场和槽间相互影响。该分析方法基于每个子域的极坐标中的二维拉普拉斯方程和泊松方程的解析（通过分离变量技术），即，磁体、气隙、槽开口和槽。磁场分布，反电动势，和电磁转矩（包括齿槽转矩）计算与所提出的分析方法进行比较，从有限元分析发出。
This paper presents an analytical subdomain model to compute the magnetic field distribution in surface-mounted permanent-magnet (PM) motors with semi-closed slots. The proposed model is sufficiently general to be used with any pole and slot combinations including fractional slot machines with distributed or concentrated windings. The model accurately accounts for armature reaction magnetic field and mutual influence between the slots. The analytical method is based on the resolution of two-dimensional Laplace's and Poisson's equations in polar coordinates (by the separation of variables technique) for each subdomain, i.e., magnet, air gap, slot-opening, and slots. Magnetic field distributions, back-EMF, and electromagnetic torque (including cogging torque) computed with the proposed analytical method are compared with those issued from finite-element analyses.