State Estimation of a Lithium-Ion Battery Through Kalman Filter

Matthieu Urbain (1) , Stéphane Rael (1) , Bernard Davat (1) , Philippe Desprez (1)

1 GREEN - Groupe de Recherche en Electrotechnique et Electronique de Nancy

Online evaluation of operating conditions is crucial for battery management system. For this purpose, the resistance and the capacity best characterize the state-of-health of a lithium-ion cell, whereas the state-of-charge is a reliable information about its remaining stored energy. This paper describes the use of Kalman filter in order to estimate these parameters for photovoltaic applications, and hybrid electric vehicle applications. Rather than computing heavy models incompatible with embedded microcontroller capabilities, some assumptions associated to theses kinds of applications allow to implement a simple model to track parameters. Experimental validation of this process is fully depicted.

Domaines: Energie électrique

Matthieu Urbain, Stéphane Rael, Bernard Davat, Philippe Desprez. State Estimation of a Lithium-Ion Battery Through Kalman Filter. Power Electronics Specialists Conference (PESC 2007), Jun 2007, Orlando, FL, United States. pp.CD-ROM. ⟨hal-00164489⟩