Operation of a Hybrid Energy Storage System Based on a Cascaded Multi-Output Multilevel Converter with a Carrier-Based Modulation Scheme
Fidel Figueroa (Universidad Católica de la Santísima Concepción)
Ricardo Lizana F. (Universidad Católica de la Santísima Concepción)
Stefan M. Goetz (Duke University, University of Cambridge)
S. Rivera (Universidad Católica de la Santísima Concepción, TU Delft - DC systems, Energy conversion & Storage)
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Abstract
Hybrid Energy Storage Systems (HESSs) have gathered considerable interest due to their potential to achieve high energy and power density by integrating different storage technologies, such as batteries and capacitors, to name a few. Among the various topologies explored for HESSs, the multi-output multilevel converter stands out as a promising option, offering decoupled operation of the AC ports while maintaining an internal balance among the diverse storage units. In this paper, the operation and restrictions of a HESS based on a multi-output multilevel converter with a carrier-based modulation scheme are presented. The study provides compelling evidence of the correct operation of the proposed modulation scheme and highlights its advantages, including simplicity and stability.
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