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Energy storage type hydraulic wave energy power generation system and working method thereof

A power generation system and wave energy technology, applied in ocean energy power generation, engine components, machines/engines, etc., can solve problems such as poor energy storage performance, unstable wave energy flow density, etc., to improve work performance, avoid energy waste, small size effect

Inactive Publication Date: 2018-11-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an energy storage type hydraulic wave energy generation system and its working method to adapt to the unstable wave energy flow density, and effectively avoid output Disadvantages of power fluctuation and poor energy storage performance, improve energy conversion efficiency

Method used

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  • Energy storage type hydraulic wave energy power generation system and working method thereof
  • Energy storage type hydraulic wave energy power generation system and working method thereof
  • Energy storage type hydraulic wave energy power generation system and working method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, an energy storage hydraulic wave power generation system includes a rotating mechanism 1, a quantitative pump 2, a variable motor 3, an energy storage system 4, and a generator 5. The rotating mechanism 1 is coaxially connected with the quantitative pump 2, and the quantitative pump 2. The hydraulic valve group is connected with the variable motor 3 to form a closed volume speed regulation circuit. The variable motor 3 is connected to the generator 5 through the energy storage system 4. The rotating mechanism 1 rotates under the action of wave energy, drives the coaxial quantitative pump 2 to rotate to supply high-pressure oil to the variable motor 3 in the system, and the variable motor 3 drives the generator 5 to generate electricity through the energy storage system 4 .

Embodiment 2

[0029]An energy storage type hydraulic wave energy generation system, the structure is as shown in Embodiment 1, the difference is that the energy storage system 4 includes a variable pump / motor 6, an airbag accumulator 7, a piston accumulator 8 and The nitrogen cylinder group 9, the variable pump / motor 6 is coaxially connected with the variable motor 3, one end of the variable pump / motor 6 is connected with the airbag accumulator 7 and the piston accumulator 8, and the other end is connected with the generator 5, the variable The pump / motor 6 is also connected with a first oil tank 20 , and the piston accumulator 8 is connected with a nitrogen cylinder set 9 . The air bag type accumulator 7 has the advantage of large capacity, the piston type accumulator 8 has the advantages of quick response and quick action, and the nitrogen cylinder group 9 has the advantage of low price. When the energy is large, the variable pump / motor 6 plays the role of a pump, absorbing the excess hyd...

Embodiment 3

[0031] An energy storage type hydraulic wave power generation system, the structure is as shown in Embodiment 2, the difference is that the hydraulic valve group includes a first relief valve 10, a second relief valve 11, a one-way valve 12 and a proportional section The flow valve 13, the oil outlet of the quantitative pump 2 is connected to the oil inlet of the first relief valve 10 and the oil inlet of the proportional throttle valve 13, and the closed volume speed regulating circuit also includes a hydraulic quantitative charge oil pump 14, and the hydraulic quantitative The oil outlet of the charge pump 14 is respectively connected with the oil inlet of the check valve 12, the oil inlet of the second relief valve 11, the oil outlet of the first relief valve 10 and the oil inlet of the quantitative pump 2. The oil inlet of the quantitative charge pump 14 and the oil outlet of the second relief valve 11 are connected to the second oil tank 15; the oil outlet of the check val...

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Abstract

The invention relates to an energy storage type hydraulic wave energy power generation system and a working method thereof and belongs to the technical field of wave energy power generation. The energy storage type hydraulic wave energy power generation system comprises a rotary mechanism, a quantitative pump, a variable motor, an energy storage system and a power generator, wherein the rotary mechanism and the quantitative pump are coaxially connected; the quantitative pump is connected with the variable motor through a hydraulic valve group to form a closed type capacity speed adjusting circuit; the variable motor is connected with the power generator through the energy storage system. According to the energy storage type hydraulic wave energy power generation system provided by the invention, the reliability of a conventional power generation system is ensured, the disadvantages of fluctuation of output power and poor energy storage performance are effectively avoided and the energyconversion efficiency is improved.

Description

technical field [0001] The invention relates to an energy storage type hydraulic wave power generation system and a working method thereof, belonging to the technical field of wave power generation. Background technique [0002] The ocean contains abundant resources, which are closely related to human life, among which wave energy is the most eye-catching. Wave energy has great potential for development. In the vast sea area that is not affected by terrain, wave energy is rich in reserves and widely distributed. It is a research hotspot in the utilization of renewable energy in various countries. At the same time, the full utilization of wave energy will be of great significance to alleviating energy pressure and environmental protection. [0003] There are many kinds of wave energy devices. Typical wave energy power generation devices include oscillating buoy type, oscillating water column type, over-wave type, pendulum type, horizontal axis rotor type, etc. No matter what...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B13/22
CPCF03B13/22F05B2220/706Y02E10/30
Inventor 李世振刘延俊武爽陈志刘亮亮
Owner SHANDONG UNIV
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