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Journal of Applied Dynamic Systems and Control
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Volume Volume 2 (2019)
Volume Volume 1 (2018)
Issue Issue 1
Maghouli, P., Refahi, H. (2018). Improvement of Fuel Cells Dynamic Response in Micro-Grids ‎Using Ultra Capacitors. Journal of Applied Dynamic Systems and Control, 1(1), 22-27.
Pouria Maghouli; Hossein Refahi. "Improvement of Fuel Cells Dynamic Response in Micro-Grids ‎Using Ultra Capacitors". Journal of Applied Dynamic Systems and Control, 1, 1, 2018, 22-27.
Maghouli, P., Refahi, H. (2018). 'Improvement of Fuel Cells Dynamic Response in Micro-Grids ‎Using Ultra Capacitors', Journal of Applied Dynamic Systems and Control, 1(1), pp. 22-27.
Maghouli, P., Refahi, H. Improvement of Fuel Cells Dynamic Response in Micro-Grids ‎Using Ultra Capacitors. Journal of Applied Dynamic Systems and Control, 2018; 1(1): 22-27.

Improvement of Fuel Cells Dynamic Response in Micro-Grids ‎Using Ultra Capacitors

Article 4, Volume 1, Issue 1, Summer and Autumn 2018, Page 22-27  XML PDF (355.17 K)
Document Type: Original Article
Authors
Pouria Maghouli email ; Hossein Refahi
Electrical and Electronic Engineering, Shahed University, 3319118651, Tehran, Iran‎
Abstract
Fuel Cells do not respond to higher frequency contents of load changes due to their inherent large time constants; thus, if any disturbance occurs in the system loading, it would cause negative effects on power quality of the system. This is especially of high importance in microgrids which contain critical loads with low inertia requirements. Sudden changes in load points could cause significant frequency and voltage variations. Hence, proper measures such as energy storage systems should be taken into microgrids for improving their stability. In this paper, a new method based on Ultra-Capacitor (UC) with bidirectional converter has been proposed to solve this drawback of fuel cells. The UC is used to modify the system's frequency response with a fast and efficient controller. The proposed method is simulated for a sample test system in MATLAB/SIMULINK environment and results are presented to illustrate its performance. Based on the results, the system can manage its frequency and voltage variations effectively by the proposed configuration.
Keywords
fuel cell; Ultra-Capacitor (UC); PEMFC (Proton Exchange Membrane Fuel Cell); Double layer ‎effect; Utilization Factor (UF)‎
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