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http://dx.doi.org/10.5370/JEET.2016.11.6.1863

Fractional Order Modeling and Control of Twin Rotor Aero Dynamical System using Nelder Mead Optimization  

Ijaz, Salman (School of Automation and Electrical Engineering, Beihang University)
Hamayun, Mirza Tariq (Dept. of Electrical Engineering, COMSATS Lahore)
Yan, Lin (School of Automation and Electrical Engineering, Beihang University)
Mumtaz, Muhammad Faisal (Dept. of Electrical Engineering, ISP)
Publication Information
Journal of Electrical Engineering and Technology / v.11, no.6, 2016 , pp. 1863-1871 More about this Journal
Abstract
This paper presents an application of fractional order controller for the control of multi input multi output twin rotor aerodynamic system. Dynamics of the considered system are highly nonlinear and there exists a significant cross-coupling between the horizontal and vertical axes (pitch & yaw). In this paper, a fractional order model of twin rotor aerodynamic system is identified using input output data from nonlinear system. Based upon identified fractional order model, a fractional order PID controller is designed to control the angular position of level bar of twin rotor aerodynamic system. The parameters of controller are tuned using Nelder-Mead optimization and compared with particle swarm optimization techniques. Simulation results on the nonlinear model show a significant improvement in the performance of fractional order PID controller as compared to a classical PID controller.
Keywords
Fractional order controller; Twin rotor; Nelder-Mead optimization; Classical PID;
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