A modular battery-based energy storage system is composed by several battery packs distributed among different modules or parts of a power conversion system (PCS). The design of such PCS can be diverse attending to different criteria such as reliability, efficiency, fault tolerance, compactness and flexibility. The present paper proposes a quantitative and qualitative comparison among the most widely proposed PCSs for modular battery-based energy storage systems in literature. The obtained results confirm the high performance of those PCSs based on the parallel connection of different modules to a single point of common coupling, also identifying those based on modular multilevel cascaded converters as promising concepts according to the assumptions of the present paper.
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CITATION STYLE
Diaz-Gonzalez, F., Heredero-Peris, D., Pages-Gimenez, M., Prieto-Araujo, E., & Sumper, A. (2020). A Comparison of Power Conversion Systems for Modular Battery-Based Energy Storage Systems. IEEE Access, 8, 29557–29574. https://doi.org/10.1109/ACCESS.2020.2972412