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New hybrid optimal controller applied to a vibration control system subjected to severe disturbances

机译:新的混合动力最优控制器应用于遭受严重干扰的振动控制系统

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This study presents a new hybrid optimal controller to enhance the robustness and stability of dynamic systems subjected to uncertainties and external disturbances. In the formulation of the proposed control system, the Bolza-Meyer (BM in short) criterion of the optimal controller is modified to meet the system variation, and the sliding-mode controller is modified to obtain the classical control property with the prescribed performance. The proposed controller also includes the H-infinity technique as a bridge for connecting the sub-controls and improving the robust performance of the system. Fuzzy model are used as filters to choose the optimal values for the next calculation. Hence, many advantages of fuzzy model are acquired, related to optimal control, sliding mode control, prescribed performance, and H-infinity techniques. To demonstrate these advantages, the proposed hybrid controller is applied to a vehicle seat suspension for vibration control. Superior control performance over existing hybrid controllers is demonstrated in both time and frequency domains. (C) 2019 Elsevier Ltd. All rights reserved.
机译:这项研究提出了一种新的混合最优控制器,以增强动态系统在不确定性和外部干扰下的鲁棒性和稳定性。在提出的控制系统中,对最优控制器的Bolza-Meyer(简称BM)准则进行了修改,以适应系统的变化,对滑模控制器进行了修改,以获得具有规定性能的经典控制特性。所提出的控制器还包括H-infinity技术,作为连接子控制和改善系统鲁棒性能的桥梁。模糊模型用作筛选器,以选择下一个计算的最佳值。因此,获得了模糊模型的许多优点,这些优点涉及最佳控制,滑模控制,规定的性能和H无限技术。为了证明这些优点,提出的混合动力控制器应用于车辆座椅悬架以进行振动控制。在时域和频域上都展示了优于现有混合控制器的控制性能。 (C)2019 Elsevier Ltd.保留所有权利。

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