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Reduced-order Generalized Proportional Integral Observer Based Continuous Dynamic Sliding Mode Control for Magnetic Levitation System with Time-varying Disturbances
International Journal of Control, Automation and Systems ( IF 3.2 ) Pub Date : 2020-09-15 , DOI: 10.1007/s12555-019-0387-8
Junxiao Wang , Lei Zhao , Li Yu

In order to reduce the influence of time-varying disturbances for magnetic levitation system, we propose a reduced-order generalized proportional integral observer (RGPIO) based continuous dynamic sliding mode control scheme for magnetic levitation system in this paper. Unlike the popular extended state observer (ESO), it could deal with constant or slowing varying disturbances from theoretical point of view, the reduced-order generalized proportional integral observer (RGPIO) is designed to estimate the time-varying disturbances and system states, then the dynamic sliding mode surface is developed and deduce a continuous sliding mode controller (CSMC) for magnetic levitation system. Compared with ESO based continuous sliding mode controller, the proposed method not only ensures the position tracking accuracy, but also obtain better time-varying disturbance reject ability. Simulation and experimental results are also given to verify the effectiveness.

中文翻译:

基于降阶广义比例积分观测器的时变扰动磁悬浮系统连续动态滑模控制

为了减少时变扰动对磁悬浮系统的影响,本文提出了一种基于降阶广义比例积分观测器(RGPIO)的磁悬浮系统连续动态滑模控制方案。与流行的扩展状态观测器 (ESO) 不同,它可以从理论角度处理恒定或缓慢变化的扰动,降阶广义比例积分观测器 (RGPIO) 旨在估计时变扰动和系统状态,然后开发了动态滑模面,并推导出了磁悬浮系统的连续滑模控制器(CSMC)。与基于 ESO 的连续滑模控制器相比,该方法不仅保证了位置跟踪精度,同时也获得了更好的时变干扰抑制能力。还给出了仿真和实验结果以验证其有效性。
更新日期:2020-09-15
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