Title: Robust adaptive control for MDF hot press hydraulic system based on fuzzy disturbance observer

Authors: Liangkuan Zhu; Yaqiu Liu; Xiaodong Shao; Kun Wang

Addresses: School of Electromechanical Engineering, Northeast Forestry University, Harbin, 150040, China ' School of Electromechanical Engineering, Northeast Forestry University, Harbin, 150040, China ' School of Electromechanical Engineering, Northeast Forestry University, Harbin, 150040, China ' School of Information and Electronic Technology, Jiamusi University, Jiamusi, 154007, China

Abstract: In this paper, a robust adaptive tracking control problem is investigated for medium density fibreboard (MDF) hot press hydraulic system in the presence of interior parameter perturbations and external load disturbance. Firstly, a novel fuzzy disturbance observer is designed to estimate the interior parameter perturbations and external load disturbance of the system, and the output of the fuzzy disturbance observer is fed back into the control input to compensate system model. Subsequently, a continuous controller is designed that ensures that the finite-time convergence of the state of the third subsystem. Numerical simulation results are also exhibited to authenticate and validate the benefits of the proposed control scheme.

Keywords: hot press hydraulic systems; position control; tracking control; finite-time convergence; medium density fibreboard; MDF; robust control; adaptive control; fuzzy observers; disturbance observers; controller design; numerical simulation.

DOI: 10.1504/IJMIC.2016.078331

International Journal of Modelling, Identification and Control, 2016 Vol.26 No.2, pp.79 - 89

Received: 31 Jul 2015
Accepted: 14 Oct 2015
Published online: 15 Aug 2016 *

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