The Effects Of Parameter Variation In Open-Loop And Closed-Loop Control Scheme For An Electro-Hydraulic Actuator System

Rozaimi, Ghazali (2016) The Effects Of Parameter Variation In Open-Loop And Closed-Loop Control Scheme For An Electro-Hydraulic Actuator System. International Journal Of Control And Automation, 9 (1). pp. 283-294. ISSN -

[img] Text
20160901_IJCA_Chong.pdf - Published Version
Restricted to Registered users only

Download (1MB)

Abstract

It is well known that the EHA system is exposed to the disturbances,uncertainties,and parameter variations which are caused by the changes in operating conditions for instance,total moving mass,supply pressure,servo-valve gain,bulk modulus,leakage coefficient,and friction.These problems pose to a great challenge in modelling and controller development for an EHA system.Degradation of the desired performance can be imposed if an improper control strategy is utilized.This paper discusses the fundamental study on the significant effect that leads to degradation of EHA system performance due to variation in the system parameters.A nonlinear EHA system model is developed and implemented in the simulation studies in open-loop and closed-loop control configuration.The finding shows that the servovalve gain resulted the most influential parameters to the EHA system performance as compared to the total moving mass and supply pressure parameters.In order to overcome these issues,the utilized controller should be robust enough to overcome the entire operating range that against such disturbances,uncertainties,and parameter variations.Therefore,a nonlinear and the intelligent control approach may be necessary to be designed in order to overcome these difficulties.

Item Type: Article
Uncontrolled Keywords: Electro-hydraulic actuator system; parameters variation; robustness test.
Subjects: T Technology > T Technology (General)
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions: Faculty of Electrical Engineering
Depositing User: Mohd. Nazir Taib
Date Deposited: 15 May 2018 05:05
Last Modified: 08 Jul 2021 21:10
URI: http://eprints.utem.edu.my/id/eprint/20825
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item