Optimization of PID for industrial electro-hydraulic actuator using PSOGSA

Mohammed Maged Abdullah Alqadasi, Siti Marhainis Othman, M. F. Rahmat, Fahisal Abdullah

Abstract


The Electro-hydraulic actuator (EHA) systems known to be extremely nonlinear due to its dynamic characteristics and these existing nonlinearities and uncertainties yield to the constraint in the control of EHA system, which influences the position tracking accuracy and affect the occurrences of leakage and friction in the system. The purpose of this work is to develop the mathematical model for the industrial electrohydraulic actuator, then to design a controller by proportional-integral-derivative (PID) and optimize the parameters using Particle Swarm Optimization - Gravitational Search Algorithm (PSOGSA). A few controllers such as conventional PID (CPID) and model reference adaptive control (MRAC) designed for comparison. The performance of PID, PID-PSOGSA and modern controller MRAC will be compared in order to determine the most efficient controller. Despite all controllers are capable to provide good performance, PID-PSOGSA control methods generate good response compared to PID and MRAC in term of positioning.

Keywords


algorithm; EHA system; MRAC; PID controller; PSOGSA;



DOI: http://dx.doi.org/10.12928/telkomnika.v17i5.12808

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TELKOMNIKA Telecommunication, Computing, Electronics and Control
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