Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter

Kai-Ping Liu; Georgios Orfanoudakis; Andrew Cruden; Suleiman Sharkh

doi:10.1109/ESARS-ITEC60450.2024.10819917

Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter

Kai-Ping Liu, Georgios Orfanoudakis, Andrew Cruden, Suleiman Sharkh

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Abstract

This article proposes a new method for online electrochemical impedance spectroscopy (EIS) of batteries using a modified direct power controlled (DPC) grid-connected three-phase neutral point clamped (NPC) inverter. The method stimulates the battery by applying a pseudo-random binary sequence (PRBS) EIS signal to the dc link-capacitor voltage balancing control loop of the inverter. The proposed approach has been verified using a grid-connected NPC inverter model in MATLAB/Simulink. The method enables online battery diagnosis and management without the need for ancillary electronic circuits.

Original language	English
Title of host publication	2024 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC)
DOIs	https://doi.org/10.1109/ESARS-ITEC60450.2024.10819917
Publication status	Published - 26 Nov 2024
Externally published	Yes

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10.1109/ESARS-ITEC60450.2024.10819917

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Liu, K.-P., Orfanoudakis, G., Cruden, A., & Sharkh, S. (2024). Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter. In 2024 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) https://doi.org/10.1109/ESARS-ITEC60450.2024.10819917

Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter. / Liu, Kai-Ping; Orfanoudakis, Georgios; Cruden, Andrew et al.
2024 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). 2024.

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Liu, K-P, Orfanoudakis, G, Cruden, A & Sharkh, S 2024, Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter. in 2024 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). https://doi.org/10.1109/ESARS-ITEC60450.2024.10819917

Liu KP, Orfanoudakis G, Cruden A, Sharkh S. Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter. In 2024 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). 2024 Epub 2024 Nov 26. doi: 10.1109/ESARS-ITEC60450.2024.10819917

Liu, Kai-Ping ; Orfanoudakis, Georgios ; Cruden, Andrew et al. / Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter. 2024 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). 2024.

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Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter

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