Publication
Estimación del estado de carga y coeficientes de difusión en baterías de flujo redox
Conference Article
Conference
Jornadas de Automática (JJAA)
Edition
XLII
Pages
357-364
Doc link
https://doi.org/10.17979/spudc.9788497498043.357
File
Authors
Projects associated
Abstract
Estimation of the state of charge and diffusion coefficients in redox flow batteries.
This paper presents an observer for the estimation of the state of charge of redox flow batteries. The observer is high gain and is based on a non-linear dynamic model, which uses a realistic approach differentiating between the total electrolyte concentrations in the two parts of the system. It is shown that the state of charge can be estimated by measuring cell voltage and a high gain observer. However, the precision of the estimate is affected by the uncertainty in the diffusion coefficients of the system. For this reason, the observer is strengthened by estimating adaptive parameters of immersion and invariance. Finally, the results are validated in a numerical simulation.
Categories
observability, storage automation.
Author keywords
Redox flow batteries, state of charge, adaptive nonlinear observer
Scientific reference
A. Clemente, A. Cecilia and R. Costa. Estimación del estado de carga y coeficientes de difusión en baterías de flujo redox, XLII Jornadas de Automática, 2021, Castellón, Spain, pp. 357-364.
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