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Control of Cascaded Multilevel Converter for Wave Energy Applications

Author

Listed:
  • Henry M. Zapata

    (Department of Electronics, Universidad Tecnica Federico Santa Maria, Valparaiso 2390123, Chile
    These authors contributed equally to this work.)

  • Marcelo A. Perez

    (Department of Electronics, Universidad Tecnica Federico Santa Maria, Valparaiso 2390123, Chile
    These authors contributed equally to this work.)

  • Abraham Marquez Alcaide

    (Electronic Engineering Department, Universidad de Sevilla, 41004 Sevilla, Spain
    These authors contributed equally to this work.)

Abstract

This paper proposes a control scheme for a wave energy conversion system based on a linear generator and a cascaded multilevel converter. The mechanical conversion system is composed of a buoy connected directly to a linear generator. The windings of the generator are individually controlled by a cascaded multilevel power converter using independent maximum power point tracking to improve energy harvesting. The output of the cascaded converter is controlled to keep the DC capacitors balanced and generate a multilevel voltage at the output terminals which reduces the losses in the underwater transmission line. Experimental results show the performance of the proposed control scheme maximizing the power generation by imposing a current with the same waveform of the induced voltage and balancing the DC capacitors.

Suggested Citation

  • Henry M. Zapata & Marcelo A. Perez & Abraham Marquez Alcaide, 2022. "Control of Cascaded Multilevel Converter for Wave Energy Applications," Energies, MDPI, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:gam:jeners:v:16:y:2022:i:1:p:71-:d:1010309
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    References listed on IDEAS

    as
    1. Tunde Aderinto & Hua Li, 2019. "Review on Power Performance and Efficiency of Wave Energy Converters," Energies, MDPI, vol. 12(22), pages 1-24, November.
    2. Aleix Maria-Arenas & Aitor J. Garrido & Eugen Rusu & Izaskun Garrido, 2019. "Control Strategies Applied to Wave Energy Converters: State of the Art," Energies, MDPI, vol. 12(16), pages 1-19, August.
    3. Alain Ulazia & Markel Penalba & Arkaitz Rabanal & Gabriel Ibarra-Berastegi & John Ringwood & Jon Sáenz, 2018. "Historical Evolution of the Wave Resource and Energy Production off the Chilean Coast over the 20th Century," Energies, MDPI, vol. 11(9), pages 1-23, August.
    4. Muhammed Zafar Ali Khan & Haider Ali Khan & Muhammad Aziz, 2022. "Harvesting Energy from Ocean: Technologies and Perspectives," Energies, MDPI, vol. 15(9), pages 1-43, May.
    5. Henry M. Zapata & Marcelo A. Pérez, 2022. "Modular Multilevel Converter for a Linear Generator for Wave Energy Converter," Energies, MDPI, vol. 15(17), pages 1-11, August.
    6. Gunn, Kester & Stock-Williams, Clym, 2012. "Quantifying the global wave power resource," Renewable Energy, Elsevier, vol. 44(C), pages 296-304.
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