An ARIMA-NARX Model to Predict Li-Ion State of Charge for Unknown Charge/Discharge Rates

Asadullah Khalid, Aditya Sundararajan, Arif I. Sarwat

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

State of charge (SOC) prediction for Li-ion batteries is an essential feature of a battery management system (BMS). This paper proposes two Autoregressive Integrated Moving Average (ARIMA) models to independently forecast cell current and voltage, respectively and a Nonlinear Autoregressive neural network (NARX-net) model. The battery parameters corresponding to an unknown higher C-rate are forecasted using the parameters corresponding to known C-rates obtained experimentally using a 3.7V, 3.5Ah Li-ion battery. Four algorithms are then used to train a NARX-net to predict SOC for an unknown higher C-rate, performances of which are compared with the experimentally obtained SOC for C/10. The resulting proposed model combining ARIMA and NARX-net predicts SOC with very low error values.

Original languageEnglish
Title of host publication2019 IEEE Transportation Electrification Conference, ITEC-India 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728131696
DOIs
StatePublished - Dec 2019
Externally publishedYes
Event2019 IEEE Transportation Electrification Conference, ITEC-India 2019 - Bengaluru, India
Duration: Dec 17 2019Dec 19 2019

Publication series

Name2019 IEEE Transportation Electrification Conference, ITEC-India 2019

Conference

Conference2019 IEEE Transportation Electrification Conference, ITEC-India 2019
Country/TerritoryIndia
CityBengaluru
Period12/17/1912/19/19

Funding

ACKNOWLEDGMENTS The material published is a result of the research supported by the National Science Foundation under the Award number CNS-1553494.

FundersFunder number
National Science FoundationCNS-1553494

    Keywords

    • ARIMA
    • NARX
    • battery analyzer
    • state of charge prediction

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