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首页> 外文期刊>IEEE Transactions on Magnetics >A noncontact permanent magnet levitation table with electromagnetic control and its vibration isolation method using direct disturbance cancellation combining optimal regulators
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A noncontact permanent magnet levitation table with electromagnetic control and its vibration isolation method using direct disturbance cancellation combining optimal regulators

机译：电磁干扰的非接触式永磁悬浮台及其采用直接干扰消除与最优调节器相结合的隔振方法

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摘要

A vibration isolation table levitating without contacts by drag-force type electromagnetic actuators is presented. The actuator consists of a permanent magnet connected to an electromagnet. The gravity force of the table is suspended by permanent magnets, and vibrations due to disturbances are controlled by changing magnetic fluxes of the permanent magnets. When the horizontal disturbance applies to the magnetic levitation supports of the table, the location of the magnets moves from the set position. This implies that the magnetic forces in both the horizontal and vertical directions vary due to base disturbances. An analysis of the magnetic levitation force, magnetic stiffness, and control force, is presented first and then a method of vibration control is presented. The control method is based on a disturbance cancellation combining an optimal regulator with consideration of interferences of the magnetic forces between horizontal and vertical motions.
机译：提出了一种隔振工作台，该隔振工作台通过拖曳力型电磁致动器悬浮而无接触。执行器由连接到电磁体的永磁体组成。桌子的重力由永磁体悬挂，并且通过改变永磁体的磁通量来控制由于干扰引起的振动。当水平扰动作用于工作台的磁悬浮支架时，磁体的位置将从设定位置移动。这意味着在水平方向和垂直方向上的磁力由于基础干扰而变化。首先对磁悬浮力，磁刚度和控制力进行了分析，然后提出了一种振动控制方法。该控制方法基于干扰消除，该干扰消除结合了最佳调节器并考虑了水平和垂直运动之间的磁力干扰。

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