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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Magnetic Propulsion Force Calculation of a 2-DoF Large Stroke Actuator for High-Precision Magnetic Levitation System
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Magnetic Propulsion Force Calculation of a 2-DoF Large Stroke Actuator for High-Precision Magnetic Levitation System

机译：高精度磁悬浮系统2自由度大行程执行器的磁推进力计算

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摘要

The design of high-precision magnetic levitation positioning systems requires fast electromagnetic models. Since three-dimensional finite element method (3D-FEM) is very time-consuming, in order to calculate magnetic forces, an interesting alternative is to determine the forces semi-analytically due to the high accuracy with a short calculation time. In this paper, a new compact semi-analytical equation for determining the magnetic propulsion forces of a new ironless two degrees of freedom (2-DoF) actuator for a high-precision magnetic levitation system is presented. The derived equation is based on the magnetic scalar potential and the Lorentz force law. An important result is that this new expression takes also the position dependence of the propulsion forces over the whole planar stroke into account. The calculated propulsion forces from the derived equations and the verification by 3D-FEM (Maxwell 3D) are presented in this paper as well.
机译：高精度磁悬浮定位系统的设计需要快速的电磁模型。由于三维有限元方法（3D-FEM）非常耗时，为了计算磁力，一种有趣的替代方法是由于具有高精度且计算时间短，因此可以半解析地确定力。本文提出了一种用于确定高精度磁悬浮系统的新型无铁二自由度（2-DoF）致动器的磁推进力的紧凑型半解析方程。导出的方程基于磁标量势和洛伦兹力定律。一个重要的结果是，该新表达式还考虑了整个平面行程中推进力的位置依赖性。本文还介绍了根据推导方程计算出的推进力，并通过3D-FEM（Maxwell 3D）进行了验证。

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