Prioritizing Power demand response for Hydrogen PEMFC-Electric Vehicles using Hybrid Energy Storage

Abstract

PEMFC powered Hybrid vehicle system is one of an interesting issue for the industry due to its high performances. The PEMFC cannot certainly ensure a sustained required energy in some scenarios. To solve this problem related to PEMFC transient response, a Hybrid Electrical Storage System (HES) is a potential candidate for a solution. The proposed Hybrid Storage system is comprised of the battery (BT) and a Super-Capacitor (SC) components. These components are included to control the hydrogen variations and the fast peak powers scenarios respectively. The SC is used to control PEMFC and the BT slow dynamics at the same times. An accurate Multi-Ways Energy Management System (MW-EMS) is proposed which aims to cooperate with the system components through SC/BT state of charge and a flux calculation. The simulation results are discussed and assessed using MATLAB/ Simulink. Keyword:Battery Energy management system Hybrid energy storage PEMFC Supercapacitor Copyright © 2017 Institute of Advanced Engineering and Science.All rights reserved. Corresponding Author:Jawadi Samir, Department of Physics, Faculty of Sciences of Tunis El Manar, PB 2092, Belvedere, Tunisia. Email: samir.jawadi@fst.utm.tn INTRODUCTIONNowadays, the Hybrid Storage System is considered as an attracting issues and an alternative energy storage [1]. These novel energy storages have been applied in various industrial applications and various fields of research respectively. Indeed, these technological devices aimed to replace the conventional fuels like, natural gas, petroleum, coal, which are being depleted rapidly and posing a fatal danger for the environment. To resolve these problems, hybrid storage system like supercapacitor and battery were treated and deployed [2], [3].Most applications included FCHEVs hybridization concept are appreciated as an attractive and potentially solution for transport applications [4]. Furthermore, FCHEVs included PEMFC, Lion Battery (BT), and Super-Capacitor (SC) are qualified by its performances and its efficiencies [5]. The PEMFC is characterized by its slow dynamic and its rapidity to manage the quick variations power in the FCHEVs. Indeed, the PEMFC was used especially during transient and startup events to satisfy the power demands and to minimize the hydrogen consumption [6][7][8].The lion battery technologies were used especially to increase the power, energy and serve the operating voltage. Furthermore, the batteries can work in parallel with the PEMFC to serve and provide the required power during the permanent phases, the hydrogen lack and the energy braking [9]. However, the Supercapacitor is included to control and incrise the low density power throught the averge PEMFC and Battery density power [10]. The Hybrid Energy Storage aimed to ensure a various of the energy demands.

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