Model-based Dynamic Power Assessment of Lithium-Ion Batteries Considering Different Operating Conditions
Artikel i vetenskaplig tidskrift, 2014

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.

Battery Management System

Electrified Vehicle

Peak Power Assessment

Battery Modeling

Li-Ion Battery


Xiaosong Hu

Chalmers, Signaler och system, System- och reglerteknik, Reglerteknik

Rui Xiong

Beijing Institute of Technology

University of Michigan-Dearborn

Bo Egardt

Chalmers, Signaler och system, System- och reglerteknik, Reglerteknik

IEEE Transactions on Industrial Informatics

1551-3203 (ISSN)

Vol. 10 1948-1959