Hydraulic wave power generation system based on volume adjusting principle
A technology of volume adjustment and power generation system, which is applied in the fields of ocean energy power generation, engine components, accumulator devices, etc. It can solve the problems of poor output energy quality, large power loss, and overall conversion efficiency reduction, and achieve energy output fluctuations. Small, improved quality, avoid power consumption and the effect of frequent pressure fluctuations
Active Publication Date: 2020-11-27
HEFEI UNIV OF TECH
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Problems solved by technology
Therefore, for the current hydraulic wave energy generation system, throttling control is often used to achieve multiple control objectives of hydraulic cylinder force control, system pressure control and generator speed control, resulting in large power loss, resulting in lower overall conversion efficiency and output energy quality. In order to meet the design concept of high efficiency and energy saving
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[0020] Such as figure 1 As shown, a hydraulic wave energy power generation system based on the principle of volume adjustment includes an energy capture end 1, an energy storage end 2 and an output end 3. The energy capture end 1, the energy storage end 2 and the output end 3 pass through a medium pipeline The energy harvesting terminal 1 transfers the maximum efficiency of wave energy into hydraulic energy to the energy storage terminal 2, and the energy storage terminal 2 converts the hydraulic energy with lower frequency and greater fluctuation into hydraulic energy with greater frequency and smoothness and then transfers To the output end, the output end 3 converts the stabilized hydraulic energy into electrical energy.
[0021] The energy capture end 1 includes a float 7, a hydraulic cylinder 6, and a first hydraulic transformer 4. The first hydraulic transformer 4 is composed of a bidirectional hydraulic motor 8, a first variable hydraulic pump 9 and a first coupling 17; 7...
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The invention discloses a hydraulic wave power generation system based on a volume adjusting principle. The hydraulic wave power generation system is characterized by comprising an energy capturing end, an energy storing end and an output end, the energy capturing end, the energy storing end and the output end are sequentially connected through medium pipelines, the energy capturing end converts wave energy into hydraulic energy and transmits the hydraulic energy to the energy storing end. The energy storing end converts the hydraulic energy with low frequency and high fluctuation into hydraulic energy with high and smooth frequency and then transmits the hydraulic energy with high and smooth frequency to the output end. The output end converts the stabilized hydraulic energy into high-quality electric energy. The multiplex control over hydraulic cylinder acting force, system working pressure and power generator rotating speed is realized in a volume adjusting manner, as a result, compared with a traditional throttling adjusting manner, throttling loss is avoided, conversion efficiency of the power generation system is improved, meanwhile power consumption and frequent pressure fluctuation caused by oil pressure fluctuation initiated by discrete and switching of a hydraulic valve are avoided, and the service life and reliability of all components in the system are increased.
Description
Technical field [0001] The invention relates to the technical field of wave energy power generation, in particular to a hydraulic wave energy power generation system based on the principle of volume adjustment. Background technique [0002] The waves in the ocean are constantly changing. Under each wave condition, there is an optimal hydraulic cylinder force so that the hydraulic cylinder can capture wave energy to the greatest extent under this wave condition. The current hydraulic wave energy power generation system, whether it is It is difficult for the normal pressure hydraulic type or variable pressure hydraulic type wave energy power generation system to simultaneously take into account the multiple control objectives of hydraulic cylinder force control, system pressure control and generator speed control. For atmospheric hydraulic wave energy power generation systems, additional flow control valves are often used to control the generator speed by means of throttling and sp...
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IPC IPC(8): F03B13/22F15B3/00F15B1/02
CPCF03B13/22F15B3/00F15B1/024Y02E10/30
Inventor 刘常海曾亿山胡敏黄河刘旺高文智陈建
Owner HEFEI UNIV OF TECH
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