An Improved Parametrization Method for Li-ion Linear Static Equivalent Circuit Battery Models Based on Direct Current Resistance Measurement

Jorge Varela Barreras, Claudio Pinto, Ricardo de Castro, Erik Schaltz, Maciej Jozef Swierczynski, Søren Juhl Andreasen, Rui Esteves Araujo

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

10 Citationer (Scopus)
923 Downloads (Pure)

Abstract

During many years, battery models have been proposed with different levels of accuracy and complexity. In some cases, simple low-order aggregated battery pack models may be more appropriate and feasible than complex physic-chemical or high-order multi-cell battery pack models. For example: in early stages of the system design process, in non-focused battery applications, or whenever low configuration effort or low computational complexity is a requirement. The latter may be the case of Electrical Equivalent Circuit Models (EECM) suitable for energy optimization purposes at a system level in the context of energy management or sizing problem of energy storage systems. In this paper, an improved parametrization method for Li-ion linear static EECMs based on the so called concept of direct current resistance (DCR) is presented. By drawing on a DCR-based parametrization, the influence of both diffusion polarization effects and changing of OCV are virtually excluded on the estimation of the battery’s inner resistance. This results in a parametrization that only accounts for pure ohmic and charge transfer effects, which may be beneficial, since these effects dominate the battery dynamic power response in the range of interest of many applications, including electro-mobility. Model validation and performance evaluation is achieved in simulations by comparison with other low and high order EECM battery models over dynamic driving profiles. Significant improvements in terms of cell terminal voltage and power losses estimation may be achieved in comparison with other conventional pulse characterization methods. Experimental characterization data from a commercial Nickel Manganese Cobalt (NMC) 53 Ah Li-ion pouch cell is used for model parametrization and validation.
OriginalsprogEngelsk
TitelInternational Conference on Sustainable Mobility Applications, Renewables and Technology (SMART), 2015
Antal sider9
ForlagIEEE Press
Publikationsdato23 nov. 2015
Sider1-9
ISBN (Elektronisk)978-1-4673-9529-8
DOI
StatusUdgivet - 23 nov. 2015
BegivenhedInternational Conference on Sustainable Mobility, Applications, Renewables and Technology (SMART 2015) - Mövenpick Hotel & Resort Al Bida’a Kuwait, Kuwait, Kuwait
Varighed: 23 nov. 201525 nov. 2015

Konference

KonferenceInternational Conference on Sustainable Mobility, Applications, Renewables and Technology (SMART 2015)
LokationMövenpick Hotel & Resort Al Bida’a Kuwait
Land/OmrådeKuwait
ByKuwait
Periode23/11/201525/11/2015

Fingeraftryk

Dyk ned i forskningsemnerne om 'An Improved Parametrization Method for Li-ion Linear Static Equivalent Circuit Battery Models Based on Direct Current Resistance Measurement'. Sammen danner de et unikt fingeraftryk.

Citationsformater