Analysis of the impact of changes in the stator magnetic circuit on static properties of the electromagnetic linear motor model

K. Just, P. Piskur
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引用次数: 0

Abstract

In this paper, the static characteristics as a function of changes in geometric dimensions of the stator magnetic circuit of the linear stepper actuator with permanent magnets is presented. The stator is built from a series of cylindrical coils encapsulated with ferromagnetic case. The runner is made of permanent magnet rings connected with ferromagnetic spacers. The electromagnetic interac-tion between the stator and the runner for the sequential supply of coils was analyzed. The electro-magnetic force as a function of the geometry of the coils and the ferromagnetic housing for the con-stant graduation of the runner was determined. The maximum, minimum, and average values of the electromagnetic force as a function of the geometric independent variable were determined. The ratio of the mean force to the maximum, and mechanical work calculated as the integral of the force on the path of the runner was adopted as the evaluation criteria. A comparison between the maximum, average and relative values of forces as a function of the geometric dimensions of the stator was made. Keywords: modelling and simulation, linear actuator, finite element method, field calculations, cogging force, magnetic force.
分析定子磁路变化对电磁直线电机模型静态性能的影响
本文研究了永磁体线性步进执行器定子磁路几何尺寸变化的静态特性。定子由一系列用铁磁外壳封装的圆柱线圈构成。流道由永磁环与铁磁垫片连接而成。分析了线圈顺序供电时定子与流道之间的电磁相互作用。确定了用于转轮定度的电磁力与线圈几何形状和铁磁外壳的函数关系。确定了电磁力的最大值、最小值和平均值作为几何自变量的函数。采用平均力与最大力的比值和计算为流道上的力的积分的机械功作为评价标准。比较了定子几何尺寸对最大力、平均值和相对力的影响。关键词:建模与仿真,线性执行机构,有限元法,场计算,齿槽力,磁力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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