TY - GEN
T1 - Electrochemical impedance spectroscopy state of charge measurement for batteries using power converter modulation
AU - Gadoue, Shady
AU - Chen, Kuan-Wen
AU - Mitcheson, Paul
AU - Yufit, Vladimir
AU - Brandon, Nigel
N1 - © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
PY - 2018/5/24
Y1 - 2018/5/24
N2 - This paper will demonstrate the concept of a new, low-cost, on-line technique for monitoring battery state of health (SOH) and state of charge (SOC) using electrochemical impedance spectroscopy (EIS). A particular focus will be electric vehicles (EVs), where the SOC accuracy over existing battery management systems (BMS) will improve range prediction accuracy, although the proposed technique is also applicable to other electrochemical energy storage devices. While currently there exist few methods to measure the battery state of charge online, these methods are generally categorized as “indirect” methods which are prone to errors due to environmental changes and require additional hardware/costs for implementation. In this paper the EIS excitation signal will be generated by the system's existing power converter without requiring extra hardware but only requires software upgrade. The main objective of the proposed method is to minimize the impact on the main operation of the power converter in the system
AB - This paper will demonstrate the concept of a new, low-cost, on-line technique for monitoring battery state of health (SOH) and state of charge (SOC) using electrochemical impedance spectroscopy (EIS). A particular focus will be electric vehicles (EVs), where the SOC accuracy over existing battery management systems (BMS) will improve range prediction accuracy, although the proposed technique is also applicable to other electrochemical energy storage devices. While currently there exist few methods to measure the battery state of charge online, these methods are generally categorized as “indirect” methods which are prone to errors due to environmental changes and require additional hardware/costs for implementation. In this paper the EIS excitation signal will be generated by the system's existing power converter without requiring extra hardware but only requires software upgrade. The main objective of the proposed method is to minimize the impact on the main operation of the power converter in the system
UR - https://ieeexplore.ieee.org/document/8362459/
U2 - 10.1109/IREC.2018.8362459
DO - 10.1109/IREC.2018.8362459
M3 - Conference publication
SN - 978-1-5386-0999-6
T3 - 2018 9th International Renewable Energy Congress (IREC)
BT - 2018 9th International Renewable Energy Congress (IREC)
PB - IEEE
T2 - 2018 9th International Renewable Energy Congress (IREC)
Y2 - 20 March 2018 through 22 March 2018
ER -