A novel approach for electrical circuit modeling of Li-ion battery for predicting the steady-state and dynamic I-V characteristics

Saxena, Saurabh and Raman, Raghu S and Saritha, B and John, Vinod (2016) A novel approach for electrical circuit modeling of Li-ion battery for predicting the steady-state and dynamic I-V characteristics. In: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 41 (5). pp. 479-487.

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Abstract

A novel approach for electrical circuit modeling of Li-ion battery is proposed in this paper. The model proposed in this paper is simple, fast, not memory intensive and does not involve any look-up table. The model mimics the steady-state and dynamic behavior of battery. Internal charge distribution of the battery is modeled using two RC circuits. Self-discharge characteristic of the battery is modeled using a leakage resistance. Experimental procedure to determine the internal resistance, leakage resistance and the value of RC elements is explained in detail. The variation of parameters with state of charge (SOC) and magnitude of current is presented. The internal voltage source of the battery model varies dynamically with SOC to replicate the experimental terminal voltage characteristics of battery. The accuracy of model is validated with experimental results.

Item Type:	Journal Article
Publication:	SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES
Publisher:	INDIAN ACAD SCIENCES
Additional Information:	Copy right for this article belongs to the INDIAN ACAD SCIENCES, C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA
Keywords:	Battery modeling; internal impedance; lithium-ion battery; open-circuit voltage; self-discharge; state of charge
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	25 Aug 2016 10:11
Last Modified:	25 Aug 2016 10:11
URI:	http://eprints.iisc.ac.in/id/eprint/54338

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