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Model-based Dynamic Power Assessment of Lithium-Ion Batteries Considering Different Operating Conditions

Xiaosong Hu (Institutionen för signaler och system, Reglerteknik) ; Rui Xiong ; Bo Egardt (Institutionen för signaler och system, Reglerteknik)
IEEE Transactions on Industrial Informatics (1551-3203). Vol. 10 (2014), 3, p. 1948-1959.
[Artikel, refereegranskad vetenskaplig]

This paper is concerned with model-based dynamic peak-power evaluation for LiNMC and LiFePO4 batteries under different operating conditions. The battery test and our prior study on linear-parameter-varying (LPV) battery modeling are briefly introduced. The peak-power estimation method that incorporates an explicit prediction horizon and design constraints on the battery current, voltage, and SOC are elaborated and its computational load is analyzed. The discharge and charge peak powers are quantitatively assessed under different dynamic characterization tests, in which a comparison with the conventional PNGV-HPPC method and approaches using the less accurate models is conducted. The robustness of the peak-power estimation approach against varying battery temperatures and aging levels is investigated. The methods to improve the credibility of the peak-power assessment in the context of battery degradation are explored.

Nyckelord: Battery Management System; Battery Modeling; Peak Power Assessment; Li-Ion Battery; Electrified Vehicle

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Denna post skapades 2013-10-15. Senast ändrad 2015-05-08.
CPL Pubid: 185295


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Institutioner (Chalmers)

Institutionen för signaler och system, Reglerteknik (2005-2017)



Chalmers infrastruktur