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Machine learning an alternate technique to estimate the state of charge of energy storage devices

Machine learning an alternate technique to estimate the state of charge of energy storage devices

Machine learning an alternate technique to estimate the state of charge of energy storage devices

Abstract:

State of charge (SOC) estimation plays a critical role in the operation of an electric vehicle (EV) power battery. In this Letter, the authors propose machine learning (ML) algorithms as alternate to the existing filtering algorithms used for SOC estimation of an EV battery. The SOC estimation approach is evaluated by the simulation experiments in advanced vehicle simulator (ADVISOR). For the modelling of ML algorithms, the input parameters that affect the SOC estimation are battery current, battery module temperature, power out of the battery (available and requested), battery power loss and heat removed from the battery. Training and testing stages of the models are carried out using the data collected from ADVISOR. As the drive cycle conditions provided by ADVISOR are universal therefore present method is applicable to all kinds of batteries used in EVs including lithium ion, nickel metal hydride and lead acid batteries. Thus, the proposed models for SOC estimation provide an alternative approach in SOC estimation.
Machine learning an alternate technique to estimate the state of charge of energy storage devices
Published in: Electronics Letters Volume: 53Issue: 25, 12 7 2017 )
Page(s): 1665 – 1666
Date of Publication: 12 7 2017
Print ISSN: 0013-5194
INSPEC Accession Number: 17377750
Publisher: IET

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