Comparison of energy management strategies of a battery/supercapacitors system for electric vehicle under real-time constraints. (1st February 2016)

• Record Type: Journal Article
• Authors: Castaings, Ali; Lhomme, Walter; Trigui, Rochdi; Bouscayrol, Alain
• Is Part Of: Applied energy. Volume 163(2016)
• Page Start: 190
• Page End: 200
• Publication Date: 2016-02-01
• Subjects: EMR Energetic Macroscopic Representation -- EMS energy management strategy -- EV electric vehicle -- H-ESS hybrid energy storage system -- SC supercapacitor -- SoC State of Charge -- RMS root mean square; Energy management -- Electric vehicle -- Optimisation -- Real-time -- Energy storage -- Experimental test; Power (Mechanics) -- Periodicals; Energy conservation -- Periodicals; Energy conversion -- Periodicals; 621.042
• DOI: 10.1016/j.apenergy.2015.11.020
• Languages: English
• ISSNs: 0306-2619

Abstract

Highlights: Effective energy management strategies for a battery–supercapacitor system. Optimisation-based and rule-based strategies. Supercapacitor voltage limitations taken into account. Experimental tests along unknown real driving cycles. Abstract: The paper deals with real-time energy management strategies for a hybrid energy storage system including a battery and supercapacitor for an electric vehicle. Besides efficiency concerns, a key issue for real-time applications is ensuring safe operations for the considered system. In such a system it is mandatory to limit the supercapacitor voltage by the energy management strategy to comply with efficiency and safety constraints. An optimisation-based strategy ( λ - control ) and a rule-based strategy ( filtering ) are compared in this paper. The active limitation of the supercapacitor voltage is ensured in both strategies. Experimental results show that the two strategies have equivalent performances under real-driving cycles not known in advance. A difference of 2% between the strategies on the battery current root mean square value is shown. By varying the desired supercapacitor voltage range, the results show that the λ - control is better-suited for a high supercapacitor voltage range whereas the filtering gives the best performances for a low supercapacitor voltage range.