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Robust Control of Active Magnetic Levitation System

机译:主动磁悬浮系统的鲁棒控制

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摘要

This paper describes the control of an active magnetic levitation system using current and magnetic flux instead of a position sensor. It is necessary to estimate disturbances when considering the robust control of magnetic levitation. A disturbance observer is one of the approaches for doing this. Another approach is to use H~∞ control. The problem of designing a controller that satisfies both robust stability and performance requirements is called robust control. An observer is used to estimate the position based on current, magnetic flux and input voltage to the electromagnet. The controller combines state-feedback with the observer output to arrive at a new input voltage. Results obtained with a conventional observer, a disturbance observer and a H~∞ controller are discussed. Simulation and experimental results demonstrate the feasibility of the approaches.
机译:本文介绍了使用电流和磁通量代替位置传感器控制主动磁悬浮系统的方法。在考虑对磁悬浮的鲁棒控制时,有必要估算干扰。干扰观察者是执行此操作的方法之一。另一种方法是使用H〜∞控制。设计同时满足鲁棒稳定性和性能要求的控制器的问题称为鲁棒控制。观察者用于根据电流,磁通量和电磁体的输入电压估算位置。控制器将状态反馈与观察者输出相结合,以达到新的输入电压。讨论了使用常规观测器,干扰观测器和H〜∞控制器获得的结果。仿真和实验结果证明了该方法的可行性。

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