Precision dynamic equivalent circuit model of a Vanadium Redox Flow Battery and determination of circuit parameters for its optimal performance in renewable energy applications

Bhattacharjee, Ankur; Roy, Atanu Singha; Banerjee, Nipak; Patra, Snehangshu; Saha, Hiranmay

doi:10.1016/j.jpowsour.2018.06.017

Cited by 45 publications

(32 citation statements)

References 60 publications

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“…A flow rate controller was designed in a dynamic internal circuit parameter extraction methodology for a 1 kW 6 h VRFB system. [ 53 ] The work's main focus was to evaluate optimum flow rate under the dynamically varying SOC values of the electrolyte flow rate. The experimental validation of the flow rate controller also revealed that the optimum flow rate was in between the minimum and maximum flow rate values; high system efficiency was not achieved at the highest flow rate values as evaluated by the previous works.…”

Section: System Level Description Of Vrfbmentioning

confidence: 99%

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An Extensive Study and Analysis of System Modeling and Interfacing of Vanadium Redox Flow Battery

Bhattacharjee

2020

Energy Tech

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Section: System Level Description Of Vrfbmentioning

confidence: 99%

“…[ 114 ] The dynamic optimal flow rate control offered by the model was essential for consuming minimum pump power during charging. Figure 5 is a schematic of a VRFB electrical equivalent circuit proposed by Bhattacharjee et al [ 53 ]…”

Section: Modeling Of Vrfbmentioning

confidence: 99%

An Extensive Study and Analysis of System Modeling and Interfacing of Vanadium Redox Flow Battery

Bhattacharjee

2020

Energy Tech

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“…Recently, a number of electrochemical methods have been developed to monitor battery SOC. These methods include open‐circuit cell voltage monitoring, dynamic equivalent circuit modeling, electrolyte viscosity and density, four‐pole cell methods, and electrolyte conductivity measurement . Among these methods, the open‐circuit cell voltage method is the most commonly used approach.…”

Section: Introductionmentioning

confidence: 99%

Monitoring the State‐of‐Charge of a Vanadium Redox Flow Battery with the Acoustic Attenuation Coefficient: An In Operando Noninvasive Method

et al. 2019

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Redox flow battery technology has been increasingly recognized as a promising option for large‐scale grid energy storage. Access to high‐fidelity information on the health status of the electrolyte, including the state‐of‐charge (SOC), is vital to maintaining optimal and economical battery operation. In this study, an ultrasonic probing cell that can be used to measure SOC in real time is designed. This unprecedented, new measurement approach overcomes the influence of varying temperatures by measuring the acoustic attenuation coefficient of the redox flow battery electrolyte online and noninvasively. The new approach is used to estimate the SOC of a vanadium redox flow battery in operando from measured acoustic properties. The accuracy of the SOC estimated from the acoustic properties is validated against SOC calculated by the titration method. The results show that the acoustic attenuation coefficient is a robust parameter for SOC monitoring, with a maximum error of 4.8% and extremely low sensitivity to temperature, while sound speed appears to be less accurate in the benchmark‐inference method, with a maximum error of 22.5% and high sensitivity to temperature. The acoustic measurement approach has great potential for inexpensive real‐time SOC monitoring of redox flow battery operations.

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“…As the vital component for fuel cell and vanadium redox-flow battery (VRFB), a polymer electrolyte membrane (PEM) should possess high proton conductivity, good mechanical stability, and selective ion transport [12,13,14,15,16]. Increased use of renewable energy sources has made the development of efficient energy storage systems more important in recent years [17,18,19]. The pumped storage power station is currently the world’s most widely used energy storage system.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polymer Electrolyte Membranes via Radiation-Induced Graft Copolymerization on Poly(ethylene-alt-tetrafluoroethylene) (ETFE) Using the Crosslinker N,N′-Methylenebis(acrylamide)

Drache

Gohs

et al. 2018

Membranes

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Polymer electrolyte membranes (PEM) prepared by radiation-induced graft copolymerization are investigated. For this purpose, commercial poly(ethylene-alt-tetrafluoroethylene) (ETFE) films were activated by electron beam treatment and subsequently grafted with the monomers glycidyl methacrylate (GMA), hydroxyethyl methacrylate (HEMA) and N,N′-methylenebis(acrylamide) (MBAA) as crosslinker. The target is to achieve a high degree of grafting (DG) and high proton conductivity. To evaluate the electrochemical performance, the PEMs were tested in a fuel cell and in a vanadium redox-flow battery (VRFB). High power densities of 134 mW∙cm−2 and 474 mW∙cm−2 were observed, respectively.

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Precision dynamic equivalent circuit model of a Vanadium Redox Flow Battery and determination of circuit parameters for its optimal performance in renewable energy applications

Cited by 45 publications

References 60 publications

An Extensive Study and Analysis of System Modeling and Interfacing of Vanadium Redox Flow Battery

An Extensive Study and Analysis of System Modeling and Interfacing of Vanadium Redox Flow Battery

Monitoring the State‐of‐Charge of a Vanadium Redox Flow Battery with the Acoustic Attenuation Coefficient: An In Operando Noninvasive Method

Preparation of Polymer Electrolyte Membranes via Radiation-Induced Graft Copolymerization on Poly(ethylene-alt-tetrafluoroethylene) (ETFE) Using the Crosslinker N,N′-Methylenebis(acrylamide)

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