Robust Control Design Based on Differential Evolution for Two-Mass System

Mahmud Iwan Solihin (1), Rini Akmeliawati (2)
(1) School of Engineering, UCSI University, Malaysia
(2) Intelligent Mechatronics Systems Research Unit, Faculty of Engineering, International Islamic University Malaysia
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How to cite (IJASEIT) :
Solihin, Mahmud Iwan, and Rini Akmeliawati. “Robust Control Design Based on Differential Evolution for Two-Mass System”. International Journal on Advanced Science, Engineering and Information Technology, vol. 1, no. 4, Aug. 2011, pp. 436-40, doi:10.18517/ijaseit.1.4.89.
This paper presents a robust control design based on constrained optimization using Differential Evolution (DE). The feedback controller is designed based on state space model of the plant considering structured uncertainty such that the closed-loop system would have maximum stability radius. A wedge region is assigned as a constraint for desired closed loop poles location. The proposed control technique is applied to a two-mass system that is known as benchmark problem for robust control design. The simulation results seem to be interesting in which the robustness performance is achieved in the presence of parameter variations of the plant.

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