Oxygen Excess Ratio control of PEM Fuel Cell System Based on a Fractional Order model Approximation
Publish place: International Journal of Mechatronics, Electrical and Computer Technology، Vol: 4، Issue: 13
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMEC-4-13_008
تاریخ نمایه سازی: 16 فروردین 1395
Abstract:
In order to effectively control takes place, an accurate model is required. High order and complicated system needs for being reduced during analysis and control design. A nonlinear model of PEMFC was primarily linearized to an 8th order. In this paper the fractional calculus is gained to reduce the linear model of FEMFC into a lower order fractional dynamic. In this approach two: Charef's approximation method and a heuristic fractional order approximation algorithm are used. Thereafter a controller will be designed for the lower order approximated system. The quality of the designed controller will be assessed through simulation. The controller will be applied to the linearized and also the original nonlinear model in presence of load disturbance. The same procedure will be gained when the system is reduced through the Hankel matrix. The outcome verifies performance of the fractional order control using a Heuristic algorithm, with respect to the control in the original model, in terms of reducing the negative peak and also the speed of the response.
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Authors
m shahiri
Department of Computer and Electrical Engineering, Babol University of Technology, Babol, Iran
a ranjbar n
Department of Computer and Electrical Engineering, Babol University of Technology, Babol, Iran
m karami
Department of Computer and Electrical Engineering, Babol University of Technology, Babol, Iran
r ghaderi
Department of Electrical and Computer Engineering, Shahid Beheshti University, Tehran, Iran