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Design and Implementation of Smart Lithium-ion Battery System with Real-time Fault Diagnosis Capability for Electric Vehicles

Lookup NU author(s): Professor Cheng Chin, JOEL Chiew

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Abstract

Lithium-ion battery (LIB) power systems have been commonly used for energy storage in electric vehicles. However, it is quite challenging to implement a robust real-time fault diagnosis and protection scheme to ensure battery safety and performance. This paper presents a resilient framework for real-time fault diagnosis and protection in a battery-power system. Based on the proposed system structure, the self-initialization scheme for state-of-charge (SOC) estimation and the fault-diagnosis scheme were tested and implemented in an actual 12-cell series battery-pack prototype. The experimental results validated that the proposed system can estimate the SOC, diagnose the fault and provide necessary protection and self-recovery actions under the load profile for an electric vehicle

Publication metadata

Author(s): Gao ZC, Chin CS, Chiew JHK, Jia JB, Zhang CZ

Publication type: Article

Publication status: Published

Journal: Energies

Year: 2017

Volume: 10

Issue: 10

Online publication date: 27/09/2017

Acceptance date: 26/09/2017

Date deposited: 06/11/2017

ISSN (electronic): 1996-1073

Publisher: MDPI AG

URL: https://doi.org/10.3390/en10101503

DOI: 10.3390/en10101503

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