Performance Evaluation of Hybrid Battery–Supercapacitor-Based Energy Storage Systems for Urban-Driven Electric Vehicles

Eiman ElGhanam, Hazem Sharf, Mohamed S. Hassan () and Ahmed Osman
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Eiman ElGhanam: Department of Electrical Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
Hazem Sharf: Department of Electrical Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
Mohamed S. Hassan: Department of Electrical Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
Ahmed Osman: Department of Electrical Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates

Sustainability, 2023, vol. 15, issue 11, 1-17

Abstract: Boosting the performance of energy management systems (EMSs) of electric vehicles (EVs) helps encourage their mass adoption by addressing range anxiety concerns. Acknowledging the higher power densities of supercapacitors (SCs) compared to those of the Lithium-ion (Li-ion) batteries used in EVs, this work proposes an optimal sizing and energy management strategy of a hierarchical hybrid energy storage system (H-HESS). In this system, the SCs are voltage-controlled to solely provide the current requirements of an EV motor during urban driving cycles with frequent accelerations and decelerations, while the EV battery recharges the depleted SCs. The proposed H-HESS is modeled and simulated on MATLAB/Simulink, and its performance is compared to that of a traditional battery-only energy storage system (BESS). Simulation results reveal that this H-HESS system offers a 55.7 % peak current reduction and ≈+2% improvement in battery loss of capacity in comparison with BESS. A pulsed battery discharge current profile is imposed by the proposed H-HESS, while C -rate control is implemented. This improves the battery aging by reducing the formation of the solid electrolytic film (SEI) that otherwise decreases its capacity.

Keywords: electric vehicle charging; hybrid energy storage system; Li-ion battery; rule-based energy management system; supercapacitors (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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