Optimal Adaptive Gain LQR-based Energy Management Strategy for Battery-Supercapacitor Hybrid Power System

Seydali Ferahtia; Ali Djerioui; Tedjani Mesbahi; Azeddine Houari; Samir Zeghlache; Hegazi Rezk; Théophile Paul

doi:10.20944/preprints202101.0371.v1

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preprints.org > engineering > automotive engineering > doi: 10.20944/preprints202101.0371.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Optimal Adaptive Gain LQR-based Energy Management Strategy for Battery-Supercapacitor Hybrid Power System

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Version 1 : Received: 17 January 2021 / Approved: 19 January 2021 / Online: 19 January 2021 (10:56:21 CET)

A peer-reviewed article of this Preprint also exists.

Ferahtia, S.; Djeroui, A.; Mesbahi, T.; Houari, A.; Zeghlache, S.; Rezk, H.; Paul, T. Optimal Adaptive Gain LQR-Based Energy Management Strategy for Battery–Supercapacitor Hybrid Power System. Energies 2021, 14, 1660. Ferahtia, S.; Djeroui, A.; Mesbahi, T.; Houari, A.; Zeghlache, S.; Rezk, H.; Paul, T. Optimal Adaptive Gain LQR-Based Energy Management Strategy for Battery–Supercapacitor Hybrid Power System. Energies 2021, 14, 1660.

Abstract

This paper aims at presenting an energy management strategy (EMS) based upon optimal control theory for a battery-supercapacitor hybrid power system. The hybrid power system consists of a Lithium-ion battery and a supercapacitor with associated bidirectional DC/DC converters. The proposed EMS aims at computing adaptive gains using salp swarm algorithm and load following control technique to assign the power reference for both the supercapacitor and the battery while achieving optimal performance and stable voltage. The DC-DC converter model is derived utilizing the first-principles method and compute the required gains to achieve the desired power. The fact that the developed algorithm takes disturbances into account increases the power ele-ments’ life expectancies and supplies the power system with the required power

Keywords

Battery; Supercapacitor; Hybrid power system; Optimal control; DC/DC converter; Energy management strategy

Subject

Engineering, Automotive Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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