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3-D analytical cogging force and cogging torque analysis of a novel linear-rotary permanent magnet actuator

机译：新型线性旋转永磁致动器的3-D解析齿槽力和齿槽转矩分析

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摘要

A novel linear-rotary permanent magnet actuator (LRPMA) is proposed in this paper, in which ferromagnetic poles and PM poles are mounted on the mover surface. A 3D analytical model without considering the stator slotting effect is presented for calculating no-load air-gap magnetic field, which transfers the tubular mover of the proposed LRPMA into a planar one. A permeance model is then built to consider the stator slotting effect in the circumferential and axial directions. The equations of cogging force and cogging torque are derived by the Maxwell stress tensor method and 3D finite element method (FEM). The analytical results of cogging force and cogging torque are consistent with those by 3D FEM.
机译：本文提出了一种新型的线性旋转永磁致动器（LRPMA），其中铁磁极和PM杆安装在动子表面上。 3D分析模型不考虑定子槽效应，用于计算空载空气间隙磁场，其将所提出的LRPMA的管状移动器转移到平面上。然后构建渗透模型以考虑圆周和轴向方向上的定子槽效果。齿槽力和齿槽扭矩的方程由麦克斯韦应力张量法和3D有限元方法（FEM）导出。齿槽力和齿槽扭矩的分析结果与3D FEM的那些一致。

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