The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

Sizing a battery-supercapacitor energy storage system with battery degradation consideration for high-performance electric vehicles

Sizing a battery-supercapacitor energy storage system with battery degradation consideration for high-performance electric vehicles
Sizing a battery-supercapacitor energy storage system with battery degradation consideration for high-performance electric vehicles
This paper presents sizing guides and energy management (EM) benchmarks of battery-supercapacitor (SC) hybrid energy storage system (HESS) in electric vehicle (EV) applications. We explain how to optimize the HESS size in order to minimize battery degradation and financial costs in EVs. We also illustrate the optimal EM benchmarks that can minimize battery degradation with whatever EM technique implemented. By decoupling the EM problem from the sizing one, we reveal the general trends of battery degradation with HESS size, which are irrelevant to design parameters of EVs and specifications of batteries and SCs. The vehicle-lifetime battery replacements and HESS costs are discussed with HESS sizing method. The efficacy of the proposed sizing guides and EM benchmarks is tested in the case study of a sports EV. Results show that the optimally sized HESS can extend battery lifetime by 37% as compared with the battery-only energy storage system and can reduce vehicle-lifetime HESS costs by up to 39% as compared with the unoptimized HESS designs, respectively.
Battery degradation, Electric vehicle, Energy Management, Hybrid energy storage system, Sizing
0360-5442
1-13
Zhu, Tao
2333524f-f55e-4069-85b9-82d89277efc4
Lot, Roberto
ceb0ca9c-6211-4051-a7b8-90fd6f0a6d78
Wills, Richard
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Yan, Xingda
f1cb05e7-9338-462b-b368-cb104540024d
Zhu, Tao
2333524f-f55e-4069-85b9-82d89277efc4
Lot, Roberto
ceb0ca9c-6211-4051-a7b8-90fd6f0a6d78
Wills, Richard
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Yan, Xingda
f1cb05e7-9338-462b-b368-cb104540024d

Zhu, Tao, Lot, Roberto, Wills, Richard and Yan, Xingda (2020) Sizing a battery-supercapacitor energy storage system with battery degradation consideration for high-performance electric vehicles. Energy, 208, 1-13, [118336]. (doi:10.1016/j.energy.2020.118336).

Record type: Article

Abstract

This paper presents sizing guides and energy management (EM) benchmarks of battery-supercapacitor (SC) hybrid energy storage system (HESS) in electric vehicle (EV) applications. We explain how to optimize the HESS size in order to minimize battery degradation and financial costs in EVs. We also illustrate the optimal EM benchmarks that can minimize battery degradation with whatever EM technique implemented. By decoupling the EM problem from the sizing one, we reveal the general trends of battery degradation with HESS size, which are irrelevant to design parameters of EVs and specifications of batteries and SCs. The vehicle-lifetime battery replacements and HESS costs are discussed with HESS sizing method. The efficacy of the proposed sizing guides and EM benchmarks is tested in the case study of a sports EV. Results show that the optimally sized HESS can extend battery lifetime by 37% as compared with the battery-only energy storage system and can reduce vehicle-lifetime HESS costs by up to 39% as compared with the unoptimized HESS designs, respectively.

Text
Final draft - Accepted Manuscript
Restricted to Repository staff only until 21 August 2022.
Request a copy

More information

Accepted/In Press date: 6 July 2020
e-pub ahead of print date: 22 July 2020
Published date: 1 October 2020
Keywords: Battery degradation, Electric vehicle, Energy Management, Hybrid energy storage system, Sizing

Identifiers

Local EPrints ID: 443494
URI: http://eprints.soton.ac.uk/id/eprint/443494
ISSN: 0360-5442
PURE UUID: 672cba12-c586-4c6d-a618-0bd587b08ca9
ORCID for Roberto Lot: ORCID iD orcid.org/0000-0001-5022-5724
ORCID for Richard Wills: ORCID iD orcid.org/0000-0002-4805-7589

Catalogue record

Date deposited: 26 Aug 2020 16:37
Last modified: 26 Nov 2021 03:03

Export record

Altmetrics

Contributors

Author: Tao Zhu
Author: Roberto Lot ORCID iD
Author: Richard Wills ORCID iD
Author: Xingda Yan

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×