Hybrid energy storage system optimal sizing for urban electrical bus regarding battery thermal behavior

Si Mohamed Faresse (Hassan II University of Casablanca)
Mohamed Assini (Hassan II University of Casablanca)
Abdallah Saad (Hassan II University of Casablanca)

International Journal of Electrical and Computer Engineering
Vol 10, No 3: June 2020

This paper proposes an algorithm for sizing the hybrid energy storage system of an urban electrical bus regarding battery thermal behavior. The aim of this study is to get the supercapacitors optimal contribution part in the hybrid energy storage system to keep the battery temperature within its allowable limit. A semi-active parallel topology that uses supercapacitors as a main source of energy is considered. According to the bus mechanical parameters and the ARTEMIS driving cycle, the power and energy demand are calculated. Using mathematical models for the battery, supercapacitors and DC-DC converter, several simulations are performed for different hybridization percentages. While observing the evolution of battery temperature, the most favorable hybridization percentage is defined.