Capacitor voltage balance limits in a multilevel-converter-based energy storage system

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Título:	Capacitor voltage balance limits in a multilevel-converter-based energy storage system
Autor/a:	Burusteta, Sendoa; Pou Félix, Josep; Ceballos Recio, Salvador; Marino, Iker; Alzola, José Ángel
Otros autores:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. TIEG - Terrassa Industrial Electronics Group
Abstract:	This paper studies an energy storage system based on a three-level DC-DC converter and a gridconnected neutral-point-clamped inverter. The main advantages of this multilevel power conversion system are highlighted and the neutral-point voltage oscillations are analyzed. A modulation algorithm for the DC-DC converter which includes the neutral-point voltage balance control is used to improve the voltage balancing capabilities of the inverter. Some figures are presented to show the extended operating areas without neutral-point voltage oscillations thanks to the contribution of the DC-DC converter to the voltage balance. Finally, some guidelines to size the DC-link capacitors are given for a practical application.
Abstract:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència -Energy storage -Renewable energy sources -Rotary converters -Energia -- Emmagatzematge -Energies renovables -Convertidors rotatius
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Tipo de documento:	Artículo - Versión publicada Objeto de conferencia
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Burusteta, Sendoa; Pou Félix, Josep; Ceballos Recio, Salvador; Marino, Iker; Anzola, Jose Angel; Agelidis, Vassilios

Ceballos Recio, Salvador; Rea, Judy; Robles Sestafe, Eider; López, Iraide; Pou Félix, Josep; Osullivan, Dara

Ceballos Recio, Salvador; Pou Félix, Josep; Choi, Sanghun; Saeedifard, Maryam; Agelidis, Vassilios

Darus, Rosheila; Pou Félix, Josep; Konstantinou, Georgios; Ceballos Recio, Salvador; Picas Prat, Ricard; Agelidis, Vassilios

Konstantinou, Georgios; Pou Félix, Josep; Capellá Frau, Gabriel José; Ceballos Recio, Salvador; Agelidis, Vassilios

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