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VGU RESEARCH REPOSITORY


Please use this identifier to cite or link to this item: https://epub.vgu.edu.vn/handle/dlibvgu/82
Title: New hybrid optimal controller applied to a vibration control system subjected to severe disturbances
Authors: Do Xuan Phu 
Nguyen Quoc Hung 
Seung Bok Choi
Keywords: Prescribed sliding mode control;Hybrid controller;Neural network;Fuzzy model;Vibration control;Seat damper
Issue Date: 2019
Publisher: Elsevier
Series/Report no.: Mechanical Systems and Signal Processing;Vol 124(1)
Abstract: 
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.
p.408-423
Index & Ranking: SCIE (Q1)
URI(1): http://epub.vgu.edu.vn/handle/dlibvgu/82
DOI: 10.1016/j.ymssp.2019.01.036
Appears in Collections:ARTICLE/BOOK PUBLICATION

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