Hybrid Energy Storage System Based on a Multioutput Multilevel Converter

Ricardo Lizana, Sebastian Rivera, Fidel Figueroa, Freddy Flores-Bahamonde, Jose Rodriguez, Stefan M. Goetz

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

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.

Original languageEnglish
Pages (from-to)3864-3873
Number of pages10
JournalIEEE Journal of Emerging and Selected Topics in Power Electronics
Volume11
Issue number4
DOIs
StatePublished - 1 Aug 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
IEEE

Keywords

  • Energy storage system (ESS)
  • modular multilevel series parallel converter (MMSPC)
  • multioutput multilevel (MOM) converter

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