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Modeling Innovative Power Take-Off Based on Double-Acting Hydraulic Cylinders Array for Wave Energy Conversion

Author

Listed:
  • Juan Carlos Antolín-Urbaneja

    (Energy Unit, Tecnalia, Mikeletegi Pasealekua 2-Miramon Donostia-San Sebastián, Gipuzkoa E-20009, Spain)

  • Alain Cortés

    (Energy Unit, Tecnalia, Mikeletegi Pasealekua 2-Miramon Donostia-San Sebastián, Gipuzkoa E-20009, Spain)

  • Itziar Cabanes

    (Automatic Control and Systems Engineering Department, School of Engineering, University of the Basque Country, Alameda Urquijo Bilbao, Bizkaia E-48013, Spain)

  • Patxi Estensoro

    (Energy Unit, Tecnalia, Mikeletegi Pasealekua 2-Miramon Donostia-San Sebastián, Gipuzkoa E-20009, Spain)

  • Joseba Lasa

    (Energy Unit, Tecnalia, Mikeletegi Pasealekua 2-Miramon Donostia-San Sebastián, Gipuzkoa E-20009, Spain)

  • Marga Marcos

    (Automatic Control and Systems Engineering Department, School of Engineering, University of the Basque Country, Alameda Urquijo Bilbao, Bizkaia E-48013, Spain)

Abstract

One of the key systems of a Wave Energy Converter for extraction of wave energy is the Power Take-Off (PTO) device. This device transforms the mechanical energy of a moving body into electrical energy. This paper describes the model of an innovative PTO based on independently activated double-acting hydraulic cylinders array. The model has been developed using a simulation tool, based on a port-based approach to model hydraulics systems. The components and subsystems used in the model have been parameterized as real components and their values experimentally obtained from an existing prototype. In fact, the model takes into account most of the hydraulic losses of each component. The simulations show the flexibility to apply different restraining torques to the input movement depending on the geometrical configuration and the hydraulic cylinders on duty, easily modified by a control law. The combination of these two actions allows suitable flexibility to adapt the device to different sea states whilst optimizing the energy extraction. The model has been validated using a real test bench showing good correlations between simulation and experimental tests.

Suggested Citation

  • Juan Carlos Antolín-Urbaneja & Alain Cortés & Itziar Cabanes & Patxi Estensoro & Joseba Lasa & Marga Marcos, 2015. "Modeling Innovative Power Take-Off Based on Double-Acting Hydraulic Cylinders Array for Wave Energy Conversion," Energies, MDPI, vol. 8(3), pages 1-38, March.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:3:p:2230-2267:d:47105
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    References listed on IDEAS

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    4. Joseba Lasa & Juan Carlos Antolin & Carlos Angulo & Patxi Estensoro & Maider Santos & Pierpaolo Ricci, 2012. "Design, Construction and Testing of a Hydraulic Power Take-Off for Wave Energy Converters," Energies, MDPI, vol. 5(6), pages 1-23, June.
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    Cited by:

    1. Chen, Zhongfei & Zhou, Binzhen & Zhang, Liang & Li, Can & Zang, Jun & Zheng, Xiongbo & Xu, Jianan & Zhang, Wanchao, 2018. "Experimental and numerical study on a novel dual-resonance wave energy converter with a built-in power take-off system," Energy, Elsevier, vol. 165(PA), pages 1008-1020.
    2. Yubo Niu & Xingyuan Gu & Xuhui Yue & Yang Zheng & Peijie He & Qijuan Chen, 2022. "Research on Thermodynamic Characteristics of Hydraulic Power Take-Off System in Wave Energy Converter," Energies, MDPI, vol. 15(4), pages 1-15, February.
    3. Wang, Liguo & Isberg, Jan & Tedeschi, Elisabetta, 2018. "Review of control strategies for wave energy conversion systems and their validation: the wave-to-wire approach," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 366-379.

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