A Field Validated Model of a Vanadium Redox Flow Battery for Microgrids
The vanadium redox flow battery (VRB) is well-suited for applications with renewable energy devices. This paper presents a practical analysis of the VRB for use in a microgrid system. The first part of the paper develops a reduced order circuit model of the VRB and analyzes its experimental performance efficiency during deployment. The model parameters of the various VRB system components were estimated from experimental field data. The parasitic losses of the circulation pumps power consumption were predicted during different operating situations. The second part of the paper addresses the implementation issues of the VRB application in a photovoltaic-based microgrid system. Commercially available chargers designed for lead-acid battery systems were shown to be non-optimal for VRB systems and a new dc-dc converter control was proposed to provide improved charging performance. The system model was validated with field-obtained experimental data.
X. Qiu et al., "A Field Validated Model of a Vanadium Redox Flow Battery for Microgrids," IEEE Transactions on Smart Grid, vol. 5, no. 4, pp. 1592-1601, Institute of Electrical and Electronics Engineers (IEEE), Jul 2014.
The definitive version is available at http://dx.doi.org/10.1109/TSG.2014.2310212
Geosciences and Geological and Petroleum Engineering
Electrical and Computer Engineering
Keywords and Phrases
Efficiency characterization; energy storage; microgrid; renewable energy; vanadium redox battery; Charging (batteries); Data reduction; DC-DC converters; Electric inverters; Secondary batteries; Charging performance; Micro-grid systems; Performance efficiency; Electric power distribution
International Standard Serial Number (ISSN)
Article - Journal
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