Online state of charge estimation for a vanadium redox flow battery with unequal flow rates
This study presents an observer-based methodology to estimate, in real-time, the state of charge of a Vanadium redox flow battery. Different from the available results in the literature, this work presents a new estimator that distinguishes between the concentration in the tank and cell parts of the...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/388726 |
| Acceso en línea: | https://hdl.handle.net/2117/388726 https://dx.doi.org/10.1016/j.est.2022.106503 |
| Access Level: | acceso abierto |
| Palabra clave: | Energy storage Redox flow battery State of charge Nonlinear observer Energia--Emmagatzematge Àrees temàtiques de la UPC::Energies |
| Sumario: | This study presents an observer-based methodology to estimate, in real-time, the state of charge of a Vanadium redox flow battery. Different from the available results in the literature, this work presents a new estimator that distinguishes between the concentration in the tank and cell parts of the system. Moreover, it presents an estimation of the state of charge that can deal with both balanced and unbalanced situations. The model used for the observer design is a nonlinear electrochemical model. A nonlinear observer is proposed, designed and validated through simulation and in an experimental prototype. |
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