Modeling of a Vanadium Redox Flow Battery for power system dynamic studies

Ontiveros, Leonardo Javier; Mercado, Pedro

doi:10.1016/j.ijhydene.2013.12.042

Cited by 54 publications

(18 citation statements)

References 11 publications

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“…Simulations have demonstrated that the model is able to capture the performance in practical systems to a high degree of accuracy. Recently, Ontiveros and Mercado [126] developed a stacklevel network model, which accounts for both the voltage and coulombic losses of the VRFB stack. It does not depend on the parameters that are difficult to obtain from data sheets, and it can be employed for modeling of other electrochemical energy storage systems.…”

Section: Stack-level Network Modelsmentioning

confidence: 99%

Fundamental models for flow batteries

Zhao

2015

Progress in Energy and Combustion Science

143

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Section: Stack-level Network Modelsmentioning

confidence: 99%

Fundamental models for flow batteries

Zhao

2015

Progress in Energy and Combustion Science

143

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“…Each cell was represented as a Thévenin equivalent made of an ideal voltage generator E0 in series with a resistance Ri, both parameters being dependent on the battery state of charge (SOC, later on indicated as s) and the latter also on the solution flow rates Q [29]. Ri result from the resistances which takes into account the cell overpotentials: activation Ra, ohmic (membrane) Ro, and transport Rt [30]: The circuit segments inside the stack, i.e. cell's manifold segments, flow channels and felts, were modeled as resistors.…”

Section: B Electrical Modelmentioning

confidence: 99%

Maximizing Vanadium Redox Flow Battery Efficiency: Strategies of Flow Rate Control

Trovò

Picano

Guarnieri

2019

2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)

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Vanadium redox flow batteries (VRFBs) are one of the most promising technologies for large-scale energy storage due to their flexible energy and power capacity configurations. The energy losses evaluation assumes a very important rule on the VRFB characterization in order increase the efficiency of the battery. Very few papers describe the relations between hydraulic, electrical and chemical contributions to the system energy losses, especially in a large size VRFB system. In the first part a fluid dynamics characterization of a 9kW / 27 kWh VRFB test facility has been conducted. In particular, we will consider the internal resistance as the sum of an ohmic and a transport resistance. Secondly, an overall loss assessment based on both numerical and experimental results has been carried out. Finally, some improvements in the battery management strategy and in stack engineering are proposed, that results from this work and can help the future designer to develop more efficient VRFB stack with a compact design.

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“…The current density through the cell and the stack voltage establish the power available, while the supply of charged electrolyte to the stack establishes the energy available. So, the rated power and the energy stored can be upgraded by increasing or decreasing the stack and the electrolyte tank, respectively [22][23][24].…”

Section: Vanadium Redox Flow Batterymentioning

confidence: 99%

A New Control Strategy to Integrate Flow Batteries into AC Micro-Grids with High Wind Power Penetration

Ontiveros¹,

Suvire²,

Mercado³

2017

Redox - Principles and Advanced Applications

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The penetration of wind generation into AC micro-grids (MGs) has been increasing in recent years. Wind generation is uncontrollable, variable in nature, and uncertain. If the penetration level is high, the random variations of the wind power generation could cause problems for MGs to maintain the nominal system frequency. A typical solution is to employ energy storage systems (ESS) into the MG in order to compensate the wind power fluctuations. In this chapter, the use of a vanadium redox flow battery (VRFB) coupled with a power conditioning system (PCS) is suggested to enhance the frequency stability of a MG with high wind power penetration. A new control system is developed for the PCS/VRFB. The control system performs the load leveling of the wind generation and carries out the primary and secondary frequency control of the MG. Dynamic simulations of the proposed device are performed and demonstrate that the new control system improves the transient responses of the PCS/VRFB and the MG, during minor and/or severe disturbances.

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Modeling of a Vanadium Redox Flow Battery for power system dynamic studies

Cited by 54 publications

References 11 publications

Fundamental models for flow batteries

Fundamental models for flow batteries

Maximizing Vanadium Redox Flow Battery Efficiency: Strategies of Flow Rate Control

A New Control Strategy to Integrate Flow Batteries into AC Micro-Grids with High Wind Power Penetration

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