Document Type

Journal Article

Publisher

Springer Netherlands

Faculty

Faculty of Health, Engineering and Science

School

School of Engineering

RAS ID

16413

Comments

This article was originally published as: Wonohadidjojo, D. M., Kothapalli, G. , & Hassan, M. (2014). Position control of electro-hydraulic actuator system using fuzzy logic controller optimized by particle swarm optimization. International Journal of Automation and Computing, 10(3), 181-193. Original article available here

Abstract

The position control system of an electro-hydraulic actuator system (EHAS) is investigated in this paper. The EHAS is developed by taking into consideration the nonlinearities of the system: the friction and the internal leakage. A variable load that simulates a realistic load in robotic excavator is taken as the trajectory reference. A method of control strategy that is implemented by employing a fuzzy logic controller (FLC) whose parameters are optimized using particle swarm optimization (PSO) is proposed. The scaling factors of the fuzzy inference system are tuned to obtain the optimal values which yield the best system performance. The simulation results show that the FLC is able to track the trajectory reference accurately for a range of values of orifice opening. Beyond that range, the orifice opening may introduce chattering, which the FLC alone is not sufficient to overcome. The PSO optimized FLC can reduce the chattering significantly. This result justifies the implementation of the proposed method in position control of EHAS.

DOI

10.1007/s11633-013-0711-3

Access Rights

Not open access

Share

 
COinS