Publication:
Novel three-phase topology for cascaded multilevel medium-voltage conversion systems in large-scale PV plants

Date

2020

Director

Publisher

IEEE
Acceso abierto / Sarbide irekia
Contribución a congreso / Biltzarrerako ekarpena
Versión aceptada / Onetsi den bertsioa

Project identifier

Métricas Alternativas

Abstract

Solar photovoltaic renewable energy systems are expanding in the power sector thanks to its increasingly competitive prices. Traditionally, large-scale PV plants have reduced their cost by increasing the power ratings of the inverters and the line-frequency transformers. However, cost-reduction limits of large-scale PV plants are being reached. Cascaded converters have appeared as a solution to continue reducing the cost of large PV plants as they reduce the wiring cost. In this paper, a novel three-phase topology for cascaded conversion structures is proposed. It only has 2 conversion steps, one without switching losses. Hence, it increases the efficiency and reduces the cost of the previously proposed cascaded conversion systems. The topology is patent pending.

Description

Keywords

Topology, Photovoltaic, Cascaded converter, Multilevel converter, Medium voltage, High-frequency transformer

Department

Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren / Institute of Smart Cities - ISC / Ingeniería Eléctrica, Electrónica y de Comunicación

Faculty/School

Degree

Doctorate program

item.page.cita

D. Lumbreras, E. L. Barrios, J. Balda, R. Gonzalez and P. Sanchis, "Novel three-phase topology for cascaded multilevel medium-voltage conversion systems in large-scale PV plants," 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), 2020, pp. 1-8, doi: 10.1109/COMPEL49091.2020.9265706.

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