A wave power device includes an energy harvesting system and a power take-off system. The power take-off system of a floating wave energy device is the key that converts wave energy into other forms. A set of hydraulic power take-off system, which suits for the floating wave energy devices, includes hydraulic system and power generation system. The hydraulic control system uses a special “self-hydraulic control system” to control hydraulic system to release or save energy under the maximum and the minimum pressures. The maximum pressure is enhanced to 23 MPa, the minimum to 9 MPa. Quite a few experiments show that the recent hydraulic system is evidently improved in efficiency and reliability than our previous one, that is expected to be great significant in the research and development of our prototype about wave energy conversion.
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This subject was financially supported by Marine Renewable Energy Funds Projects (Grant Nos. GHME2010GC01 and GHME2011BL06).
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Zhang, Yq., Sheng, Sw., You, Yg. et al. Research on energy conversion system of floating wave energy converter. China Ocean Eng 28, 105–113 (2014). https://doi.org/10.1007/s13344-014-0008-5
- hydraulic power take-off system (PTO)
- second transfers
- conversion efficiency
- hydraulic control