DOI : https://doi.org/10.18517/ijaseit.1.4.91

Performance Comparison between Sliding Mode Control with PID Sliding Surface and PID Controller for an Electro-hydraulic Positioning System

Rozaimi Ghazali (1), Yahaya Md Sam (2), Mohd Fua’ad Rahmat (3), Abd Wahab Ishari Mohd Hashim (4), . Zulfatman (5)
(1) Department of Control and Instrumentation Engineering, Universiti Teknologi Malaysia
(2) Department of Control and Instrumentation Engineering, Universiti Teknologi Malaysia
(3) Department of Control and Instrumentation Engineering, Universiti Teknologi Malaysia
(4) International Campus, Universiti Teknologi Malaysia
(5) Department of Control and Instrumentation Engineering, Universiti Teknologi Malaysia
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How to cite (IJASEIT) :
Ghazali, Rozaimi, et al. “Performance Comparison Between Sliding Mode Control With PID Sliding Surface and PID Controller for an Electro-Hydraulic Positioning System”. International Journal on Advanced Science, Engineering and Information Technology, vol. 1, no. 4, Aug. 2011, pp. 447-52, doi:10.18517/ijaseit.1.4.91.
Citation Format :
In this paper, the position tracking performance of an electro-hydraulic hydraulic servo (EHS) system using sliding mode control (SMC) with proportional-integral-derivative (PID) sliding surface is presented. The dynamics of the EHS system in modelling process are developed by consider its nonlinearities incorporating a friction model. Then, SMC with PID scheme is derived from the developed dynamics equation and stability of the control system is theoretically proven by Lyapunov theorem. Finally, simulation work is demonstrated and the result shows the proposed controller can achieve better tracking performance compared with conventional PID controller with good accuracy for any desired trajectory.

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