Online estimation of the state of charge and state of health of a vanadium redox flow battery
Alejandro Clemente, M. Montiel, Félix Barreras, Antonio Lozano, Bryan Escachx, Ramon Costa‐Castelló
Abstract
This study presents an online algorithm capable to simultaneously estimate the state of charge and state of health of a vanadium redox flow battery. Starting from a general electrochemical model, some order reductions are carried out considering different conservation laws. Based on these low-order models, the observer is designed considering the terminal voltage of the battery. This observer is firstly analyzed using numerical tools. Secondly, an experimental validation is carried out with real data provided by a vanadium redox flow battery stack, consisting on current and voltage measurements.
Topics & Concepts
Flow batteryVanadiumRedoxState of chargeBattery (electricity)State (computer science)Oxidation stateFlow (mathematics)State of healthCharge (physics)ChemistryMaterials scienceElectrical engineeringInorganic chemistryComputer scienceEngineeringMetallurgyMechanicsPhysicsThermodynamicsPower (physics)MetalQuantum mechanicsAlgorithmAdvanced battery technologies researchAdvanced Battery Technologies ResearchHybrid Renewable Energy Systems