Modeling of Nonlaminated Electromagnetic Suspension Systems
Modeling of Nonlaminated Electromagnetic Suspension Systems
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DOI：
10.1109/tmech.2009.2016656
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发表时间：
2010-02
期刊：
影响因子：
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通讯作者：
Lei Zhu;C. Knospe
中科院分区：
文献类型：
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作者：
Lei Zhu;C. Knospe
非叠层电磁作动器在时变磁场作用下产生的涡流对电磁悬浮系统的动力学和控制有很大的影响。本文研究了这些悬浮系统的建模，并解决了两个重要的问题：1）时变浮子位置对电磁力产生的影响和2）适当的方式来模拟悬浮的电压模式操作。所开发的模型是致动器材料和几何特性的显式函数。研究的重点是轴对称圆柱形电磁驱动器。类似的结果提供了非层压致动器与C芯定子。实验结果表明，建模方法的准确性。
Eddy currents induced within nonlaminated electromagnetic actuators by time-varying magnetic fields have a strong effect on the dynamics and control of electromagnetic suspension systems. This paper examines the modeling of these suspension systems and resolves two important problems: 1) the effect of time-varying flotor position on electromagnetic force production and 2) the proper manner in which to model voltage-mode operation of the suspension. The models developed are explicit functions of actuator material and geometric properties. The investigation focuses on axisymmetric cylindrical electromagnetic actuators. Similar results are provided for nonlaminated actuators with C-core stators. Experimental results are presented that demonstrate the accuracy of the modeling approach.