GDL

Journal from gdlhub / 2019-07-26 16:27:47
Oleh : Siti Fatimah Sulaiman, M. F. Rahmat, A. A. M. Faudzi, Khairuddin Osman, Telkomnika
Dibuat : 2019-07-25, dengan 1 file

Keyword : model predictive control, nonlinear gain function, observer system, overshoot, pneumatic positioning control
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/12807
Sumber pengambilan dokumen : WEB

This paper presents a new approach for improving the performance of the pneumatic positioning system by incorporating a nonlinear gain function with observer system. System identification technique has been employed to represent the pneumatic system, while a model predictive control (MPC) with the observer system has been employed as the main controller to control the positioning of the system. The nonlinear gain function has been incorporated with the control strategy to compensate nonlinearities and uncertainties inherent in the parameters of the system. Unconstrained and constrained cases of control signals have been considered in this study. Simulation based on Matlab/Simulink indicated a reduction in overshoot of the system response for both cases due to additional nonlinear gain function in the strategy. Furthermore, remarkable enhancement was observed in effectiveness of this function while incorporated in constrained case, when this new strategy successfully improved the transient response in the pneumatic positioning system.

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