三段Halbach磁铁阵列永磁同步电机铁心的优化设计

发布时间：2018-04-19 16:02

本文选题：永磁同步电动机 + Halbach磁铁阵列　；参考：《电机与控制学报》2017年04期

【摘要】：Halbach磁铁阵列和集中绕组的分数槽绕组应用于永磁同步电机可提高输出转矩并降低转矩波动,满足伺服系统快速性和高精确度的要求,但需要对电机铁心进行再设计。依据Halbach磁铁阵列的理论建立了每极三段Halbach磁铁阵列永磁同步电机磁场的模型,并分析了气隙磁场特点,提出采用集中绕组的分数槽绕组削弱齿谐波。分析电机铁心的结构特点,确定多个关键尺寸为设计变量,以一定电流的最大转矩平均值和最小转矩波动为主要优化目标,采用Taguchi方法简化优化设计的计算,并建立了双层的优化模型。以一台8极9槽的伺服电动机为例,采用有限元计算,阐述了每极三段Halbach磁铁阵列永磁电机多变量、多目标的优化过程。
[Abstract]:The application of Halbach magnet array and fractional slot windings of concentrated windings to PMSM can increase the output torque and reduce the torque ripple, and meet the requirements of the servo system for rapidity and high accuracy, but the core of the PMSM needs to be redesigned.Based on the theory of Halbach magnet array, the magnetic field model of Halbach permanent magnet synchronous motor with Halbach magnet array for each pole is established, and the characteristics of air gap magnetic field are analyzed. The fractional slot winding with concentrated windings is used to weaken the tooth harmonics.The structural characteristics of the motor core are analyzed, and several key dimensions are determined as design variables. The Taguchi method is adopted to simplify the calculation of the optimum design, taking the maximum torque average and the minimum torque ripple of a certain current as the main optimization objectives.A double-layer optimization model is established.Taking an 8-pole 9-slot servo motor as an example, the optimization process of multi-variable and multi-objective Halbach magnet array permanent magnet motor with three segments per pole is described by finite element method.
【作者单位】：上海电机学院电气学院;悉尼理工大学电气机械和机电系统学院;
【基金】：国家自然科学基金(61374136) 上海电机学院登峰学科建设(15DFXK01)
【分类号】：TM341

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