Lumbreras Magallón, DavidBarrios Rípodas, ErnestoBalda Belzunegui, JuliánGonzález Senosiain, RobertoSanchis Gúrpide, Pablo2022-01-262022-01-262020D. 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/COMPEL49091.2020.9265706.2151-099710.1109/COMPEL49091.2020.9265706https://academica-e.unavarra.es/handle/2454/41960Solar 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.8 p.application/pdfeng© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.TopologyPhotovoltaicCascaded converterMultilevel converterMedium voltageHigh-frequency transformerinfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccess