Hybrid Energy Storage System Based on a Multioutput Multilevel Converter

Journal article (2023)

Authors

Ricardo Lizana Universidad Católica de la Santísima Concepción
Sebastian Rivera Electrical Sustainable Energy , DC systems, Energy conversion & Storage - EEMCS , Universidad Católica de la Santísima Concepción
Fidel Figueroa Universidad Católica de la Santísima Concepción
Freddy Flores-Bahamonde Universidad Andres Bello
Jose Rodriguez Universidad San Sebastian Santiago
Stefan M. Goetz University of Cambridge, Duke University
Research Group
DC systems, Energy conversion & Storage (EEMCS) (TU Delft)
Copyright: © 2023 Ricardo Lizana, Sebastian Rivera, Fidel Figueroa, Freddy Flores-Bahamonde, Jose Rodriguez, Stefan M. Goetz
DOI: https://doi.org/10.1109/JESTPE.2023.3281760
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Published Date

2023

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Research Group

DC systems, Energy conversion & Storage

Abstract

Energy storage systems (ESSs) allow improving the stability and efficiency of the electrical grids with a high penetration of renewable energy sources. Moreover, the use of Hybrid ESSs (HESSs) enables storage solutions with both high-energy and high-power densities, by combining different storage technologies such as diverse battery chemistries, ultracapacitors, or hydrogen fuel cells to name a few. In this article, an HESS-based multioutput multilevel (MOM) converter is presented. The proposed topology enables decoupled control of each ac converter voltage output. The internal switching states further allow the use of different storage units and high-quality multilevel voltage in each ac output. The mathematical model of the proposed topology and the defined operation region of the system, besides a model-predictive control strategy, are developed. Finally, simulation and experimental results validate the performance of the proposed topology.

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