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Novel robust nonlinear control of magnetic bearing system based on extended state observer

机译:基于扩展状态观测器的新型磁悬浮系统鲁棒非线性控制

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In this paper, a novel robust nonlinear control scheme is proposed for a basic current-controlled active magnetic bearing (AMB) that is non-affine in the control input. First, a dynamic model approximation technique is developed to facilitate the controller design. Then, since the control characteristics of the AMB are highly nonlinear and time-varying with external disturbance, the robust nonlinear control system with an extended state observer is proposed to improve the control performance and increase the robustness of the AMB control system. Finally, The proposed approach is applied to a flywheel which is supported by four current-controlled active magnetic bearings. Simulation results are included to show the effect of the proposed new control design techniques.
机译:本文针对控制输入中非仿射的基本电流控制有源电磁轴承(AMB),提出了一种新颖的鲁棒非线性控制方案。首先,开发了一种动态模型逼近技术来简化控制器设计。然后,由于AMB的控制特性是高度非线性的,并且随着外部干扰而时变,因此提出了一种具有扩展状态观察器的鲁棒非线性控制系统,以提高控制性能并提高AMB控制系统的鲁棒性。最后,将所提出的方法应用于飞轮,该飞轮由四个电流控制的主动磁轴承支撑。仿真结果包括在内,以显示所提出的新控制设计技术的效果。

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