TY - GEN
T1 - Online broadband electrochemical impedance spectroscopy within direct power control of a neutral point clamped inverter
AU - Liu, Kai-Ping
AU - Orfanoudakis, Georgios
AU - Cruden, Andrew
AU - Sharkh, Suleiman
PY - 2024/11/26
Y1 - 2024/11/26
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/85216923900
U2 - 10.1109/ESARS-ITEC60450.2024.10819917
DO - 10.1109/ESARS-ITEC60450.2024.10819917
M3 - Chapter in a published conference proceeding
BT - 2024 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC)
ER -