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Low-RPM Torque Converter (LRTC)

Author

Listed:
  • Andrej Savin

    (Department of Electrical Engineering, Division of Electricity, Uppsala University, Box 534, 75121 Uppsala, Sweden)

  • Dana Salar

    (Department of Electrical Engineering, Division of Electricity, Uppsala University, Box 534, 75121 Uppsala, Sweden)

  • Erik Hultman

    (Department of Electrical Engineering, Division of Electricity, Uppsala University, Box 534, 75121 Uppsala, Sweden)

Abstract

The concept concerned in this paper is based on energy conversion of the ocean waves via rotational generators. The objective of this research is to develop a new type of slow-motion converter. The LRTC device consists of a drum that is connected via wire to a floating buoy. The drum is connected to rotary generators. The generators are heavily braked when the direction of movement changes (up/down); this is because the generators have been charged the maximum load in order to obtain maximum output power. For upcoming improvement, the generators should have some power storage as flywheel. In the future experiments, the torque converter can even be tuned to rotate in resonance with the incoming waves, strongly increasing power absorption. Constant force springs are applied for this purpose. The focus of this project is, therefore, a new generation of wave power device for utility-scale energy conversion offering a cost of energy that can compete with established energy resources.

Suggested Citation

  • Andrej Savin & Dana Salar & Erik Hultman, 2021. "Low-RPM Torque Converter (LRTC)," Energies, MDPI, vol. 14(16), pages 1-11, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:5071-:d:616594
    as

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    References listed on IDEAS

    as
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    2. Henfridsson, Urban & Neimane, Viktoria & Strand, Kerstin & Kapper, Robert & Bernhoff, Hans & Danielsson, Oskar & Leijon, Mats & Sundberg, Jan & Thorburn, Karin & Ericsson, Ellerth & Bergman, Karl, 2007. "Wave energy potential in the Baltic Sea and the Danish part of the North Sea, with reflections on the Skagerrak," Renewable Energy, Elsevier, vol. 32(12), pages 2069-2084.
    3. Murai, Motohiko & Li, Qiao & Funada, Junki, 2021. "Study on power generation of single Point Absorber Wave Energy Converters (PA-WECs) and arrays of PA-WECs," Renewable Energy, Elsevier, vol. 164(C), pages 1121-1132.
    4. Yue Hong & Mikael Eriksson & Cecilia Boström & Jianfei Pan & Yun Liu & Rafael Waters, 2020. "Damping Effect Coupled with the Internal Translator Mass of Linear Generator-Based Wave Energy Converters," Energies, MDPI, vol. 13(17), pages 1-14, August.
    5. 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.
    Full references (including those not matched with items on IDEAS)

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