Online Broadband Electrochemical Impedance Spectroscopy within Direct Power Control of a Neutral Point Clamped Inverter
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.
Authors
- Andrew Cruden (ORCID: https://orcid.org/0000-0003-3236-2535)
- Suleiman M. Sharkh (ORCID: https://orcid.org/0000-0001-7335-8503)
- Georgios I. Orfanoudakis (ORCID: https://orcid.org/0000-0001-5003-6624)
- Kai-Ping Liu
Institutions
- Hellenic Mediterranean University (GR)
- University of Southampton (GB)
Publication Details
- Published
- 2024-11-26
- DOI
- https://doi.org/10.1109/esars-itec60450.2024.10819917
- Primary Topic
- Multilevel Inverters and Converters
- Type
- article
- Field-Weighted Citation Impact
- 0.00