Development of thermal model for estimation of core temperature of batteries

Surya, sumukh and Bhesaniya, Amit and Gogate, Aditya and Ankur, Raghav and Patil, Vineeth (2020) Development of thermal model for estimation of core temperature of batteries. International Journal of Emerging Electric Power Systems. ISSN 1553-779X

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Abstract

Core temperature (Tc) estimation plays an important in role in establishing an effective thermal management system of a battery. In the present work, Tc of a lead acid (Pb) battery was estimated using a Kalman filter, based on a thermal model of the battery using convection resistances and capacitances. The governing equations based on measured surface temperature (Ts) and ambient temperature (Tamb) were derived. Since Tc cannot be measured directly, estimation technique was used to predict the same using measured Ts and Tamb. Five test cases for which the profiles of Tc versus time were available were analyzed. It was found that the errors in the predictions varied from 0.25 °C to 3.5 °C., depending on the nature of Tc profiles, with minimum errors when Tc has slow variations with time.

Item Type: Article
Uncontrolled Keywords: battery; battery management system (BMS); core temperature; Kalman filter; thermal management
Subjects: Engineering > MIT Manipal > Electrical and Electronics
Depositing User: MIT Library
Date Deposited: 12 Jan 2021 09:18
Last Modified: 12 Jan 2021 09:18
URI: http://eprints.manipal.edu/id/eprint/156201

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