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Optimal Constant DC Link Voltage Operation of a Wave Energy Converter

Author

Listed:
  • Venugopalan Kurupath

    (Division of Electricity, Swedish Centre for Renewable Electric Energy Conversion, P.O. Box 534, 751 21 Uppsala, Sweden)

  • Rickard Ekström

    (Division of Electricity, Swedish Centre for Renewable Electric Energy Conversion, P.O. Box 534, 751 21 Uppsala, Sweden)

  • Mats Leijon

    (Division of Electricity, Swedish Centre for Renewable Electric Energy Conversion, P.O. Box 534, 751 21 Uppsala, Sweden)

Abstract

This article proposes a simple and reliable damping strategy for wave powerfarm operation of small-scale point-absorber converters. The strategy is based on passiverectification onto a constant DC-link, making it very suitable for grid integration of the farm.A complete model of the system has been developed in Matlab Simulink, and uses real sitedata as input. The optimal constant DC-voltage is evaluated as a function of the significantwave height and energy period of the waves. The total energy output of the WEC is derivedfor one year of experimental site data. The energy output is compared for two cases, onewhere the optimal DC-voltage is determined and held constant at half-hour basis throughoutthe year, and one where a selected value of the DC-voltage is kept constant throughout theyear regardless of sea state.

Suggested Citation

  • Venugopalan Kurupath & Rickard Ekström & Mats Leijon, 2013. "Optimal Constant DC Link Voltage Operation of a Wave Energy Converter," Energies, MDPI, vol. 6(4), pages 1-14, April.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:4:p:1993-2006:d:24807
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    References listed on IDEAS

    as
    1. Waters, Rafael & Engström, Jens & Isberg, Jan & Leijon, Mats, 2009. "Wave climate off the Swedish west coast," Renewable Energy, Elsevier, vol. 34(6), pages 1600-1606.
    2. Elwood, David & Yim, Solomon C. & Prudell, Joe & Stillinger, Chad & von Jouanne, Annette & Brekken, Ted & Brown, Adam & Paasch, Robert, 2010. "Design, construction, and ocean testing of a taut-moored dual-body wave energy converter with a linear generator power take-off," Renewable Energy, Elsevier, vol. 35(2), pages 348-354.
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    Cited by:

    1. Jinming Wu & Yingxue Yao & Liang Zhou & Malin Göteman, 2017. "Latching and Declutching Control of the Solo Duck Wave-Energy Converter with Different Load Types," Energies, MDPI, vol. 10(12), pages 1-18, December.
    2. Hong, Yue & Waters, Rafael & Boström, Cecilia & Eriksson, Mikael & Engström, Jens & Leijon, Mats, 2014. "Review on electrical control strategies for wave energy converting systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 31(C), pages 329-342.
    3. Ozkop, Emre & Altas, Ismail H., 2017. "Control, power and electrical components in wave energy conversion systems: A review of the technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 67(C), pages 106-115.
    4. Rui Mendes & Maria Do Rosário Calado & Sílvio Mariano, 2018. "Maximum Power Point Tracking for a Point Absorber Device with a Tubular Linear Switched Reluctance Generator," Energies, MDPI, vol. 11(9), pages 1-18, August.
    5. Domenico Curto & Vincenzo Franzitta & Andrea Guercio & Rosario Miceli & Claudio Nevoloso & Francesco Maria Raimondi & Marco Trapanese, 2022. "An Experimental Comparison between an Ironless and a Traditional Permanent Magnet Linear Generator for Wave Energy Conversion," Energies, MDPI, vol. 15(7), pages 1-21, March.
    6. Liguo Wang & Jan Isberg, 2015. "Nonlinear Passive Control of a Wave Energy Converter Subject to Constraints in Irregular Waves," Energies, MDPI, vol. 8(7), pages 1-15, June.
    7. Ekström, Rickard & Ekergård, Boel & Leijon, Mats, 2015. "Electrical damping of linear generators for wave energy converters—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 116-128.
    8. Piscopo, V. & Benassai, G. & Della Morte, R. & Scamardella, A., 2020. "Towards a unified formulation of time and frequency-domain models for point absorbers with single and double-body configuration," Renewable Energy, Elsevier, vol. 147(P1), pages 1525-1539.

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