Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system
type: Item
instance of: scholarly article
title: Simulation and experimental studies on perfect tracking optimal control of an electrohydraulic actuator system
zbMATH Open document ID: 1236.49076
DOI: 10.1155/2012/670635
author: Zulfatman
author: A. W. I. M. Hashim
author: Rozaimi Ghazali
author: Yahaya Md. Sam
author: Mohd Fua'ad Rahmat
published in: Journal of Control Science and Engineering
publication date: 2012-03-09T00:00:00Z
review text: Summary: This paper presents a perfect tracking optimal control for discrete-time nonminimum phase of an ElectrohHydraulic Actuator (EHA) system by adopting a combination of feedback and feedforward controller. A Linear-Quadratic Regulator (LQR) is firstly designed as a feedback controller, and a feedforward controller is then proposed to eliminate the phase error emerged by the LQR controller during the tracking control. The feedforward controller is developed by implementing the Zero Phase Error Tracking Control (ZPETC) technique in which the main difficulty arises from the nonminimum phase system with no stable inverse. Subsequently, the proposed controller is performed in simulation and experimental studies where the EHA system is represented in discrete-time model that has been obtained using system identification technique. It also shows that the controller has better performance as compared to conventional PID controller in reducing phase and gain error that typically occurred in positioning or tracking systems.
Mathematics Subject Classification ID: 49N10
Mathematics Subject Classification ID: 93C55
Mathematics Subject Classification ID: 93B52
zbMATH DE Number: 6013383
zbMATH Keywords: optimal control for discrete-time nonminimum phase
zbMATH Keywords: electrohydraulic actuator (EHA) system
zbMATH Keywords: combination of feedback and feedforward controller
zbMATH Keywords: linear-quadratic regulator (LQR)
zbMATH Keywords: zero phase error tracking control (ZPETC)
Wikidata QID: Q58908003
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1155/2012/670635
OpenAlex ID: W2073762199
cites work: Q5752515
cites work: A class of proportional-integral sliding mode control with application to active suspension system
cites work: Simulation and hybrid fuzzy-PID control for positioning of a hydraulic system
cites work: Zero Phase Error Tracking Algorithm for Digital Control
description: scientific article; zbMATH DE number 6013383