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首页> 外文期刊>Electric Power Applications, IET >Analysis of permanent magnet brushless AC motor using Fourier transform approach
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Analysis of permanent magnet brushless AC motor using Fourier transform approach

机译：永磁无刷交流电动机的傅里叶变换分析

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摘要

The paper presents an analytical model for determining performance characteristics of surface mounted permanent magnet brushless motor using Fourier transform technique. The proposed scheme assumes a simplified geometric model of surface mounted PM (SMPM) motor with dual current sheets using layer theory to analyse electrical machines. The layer theory considers regions of PMBLAC motor to be replaced by layers of respective homogeneous material properties. Isotropic model assumes stator to be sloltless while anisotropic model is also considered to account for stator slotting effect on the motor performance. The Fourier transform applicable to linear induction motor and introduced by S. Yamamura is modified and adapted for analysing PMBLAC motor. The primary stator winding and permanent magnets on rotor are replaced by their respective equivalent linear current densities. The proposed model is validated using experimental results from a 12-slot surface mounted PMBLAC motor. The proposed method is capable of calculating the effect of design parameters on the performance of the SMPM motor, thus making it suitable for design and optimisation at initial stage. Moreover, analytical validation is also presented to prove the effectiveness of the proposed method.
机译：本文提出了一种分析模型，该模型用于使用傅立叶变换技术确定表面安装式永磁无刷电动机的性能特征。所提出的方案假设使用层理论来分析电机的带有双电流片的表面贴装式PM（SMPM）电动机的简化几何模型。层理论认为PMBLAC电动机的区域将被具有均质材料特性的层所代替。各向同性模型假设定子无滑动，而各向异性模型也考虑了定子开槽对电动机性能的影响。由S. Yamamura引入的适用于线性感应电动机的傅里叶变换经过修改并适用于分析PMBLAC电动机。初级定子绕组和转子上的永磁体被它们各自的等效线性电流密度代替。使用来自12槽表面安装PMBLAC电机的实验结果验证了所提出的模型。该方法能够计算出设计参数对SMPM电动机性能的影响，从而使其适合于初期的设计和优化。此外，还提出了分析验证以证明所提出方法的有效性。

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