Details

Autor(en) / Beteiligte

• Rahimi-Eichi, Habiballah
• Mo-Yuen Chow

Titel

Adaptive online battery parameters/SOC/capacity co-estimation

Ist Teil von

• 2013 IEEE Transportation Electrification Conference and Expo (ITEC), 2013, p.1-6

Ort / Verlag

IEEE

Erscheinungsjahr

2013

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• Total capacity is one of the most important parameters to characterize the performance and application of a battery. Although the nominal capacity is provided by the manufacturer, the actual capacity is subject to change with cycling effect, temperature and even storage ageing of the battery. Following our previous publications in which we developed an online adaptive parameters/state of charge (SOC) co-estimation algorithm to identify the parameters of the dynamic model of the battery and accordingly design an observer to estimate the SOC. In this paper, first we show that the parameters identification and SOC estimation results are not dependent on the correct approximation of the capacity. Afterwards, using the estimated SOC, we design another observer to estimate the actual capacity of the battery.