CN104533698A - Method utilizing wave energy for providing power for wind turbine AMD control systems - Google Patents

Method utilizing wave energy for providing power for wind turbine AMD control systems Download PDF

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Publication number
CN104533698A
CN104533698A CN201410787689.7A CN201410787689A CN104533698A CN 104533698 A CN104533698 A CN 104533698A CN 201410787689 A CN201410787689 A CN 201410787689A CN 104533698 A CN104533698 A CN 104533698A
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China
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energy
oil hydraulic
hydraulic cylinder
air
cylinder
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CN201410787689.7A
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CN104533698B (en
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穆安乐
樊亚军
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Wuxi Tongchun New Energy Technology Co Ltd
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Xian University of Technology
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/30Energy from the sea, e.g. using wave energy or salinity gradient
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a method utilizing wave energy for providing power for wind turbine AMD control systems. The method comprises the following steps that a floater connected with a spar body is utilized for capturing the wave energy; reciprocating motion of a piston in a hydraulic cylinder is utilized for converting the wave energy into hydraulic energy; air in a liquid piston cylinder is compressed, seawater is pressurized and injected into a gas-liquid energy storing device, and an air pressure motor and a hydraulic motor are used for providing the power for the AMD control system installed in a cabin and the AMD control system installed on a spar platform. The method utilizing the wave energy for providing the power for the wind turbine AMD control systems solve the problems that in the prior art, the energy consumption of a control system is high, the equipment manufacturing cost is high, and the power generation efficiency is low.

Description

A kind of wave energy that utilizes provides the method for power for wind energy conversion system AMD control system
Technical field
The invention belongs to marine energy technical field, relating to a kind of wave energy that utilizes provides the method for power for wind energy conversion system AMD control system.
Background technique
Marine wind electric field has the remarkable advantages such as high wind speed, low wind shear, low turbulent flow, high production, in addition less on the impact of the mankind, and fully can use for reference land wind power technology experience, offshore wind farm will account for more and more consequence in the Wind Power Generation Industry in future, and it makes positive contribution by playing an important role in future source of energy structure for wind-power electricity generation.But floating marine formula wind energy conversion system, except being subject to inertia, gravitational load, aerodynamic load, being also subject to wave, ocean current, wrapping up in the extra load such as ice load.Control particularly important for floating type wind machine structure stability, AMD active control system is wherein installed and can carries out off-load effectively to floating type wind energy conversion system and fall use of bestirring oneself, but traditional AMD controls to need outside to provide energy, reduces the delivery efficiency of complete machine.
Summary of the invention
The object of this invention is to provide a kind of wave energy that utilizes and provide the method for power for wind energy conversion system AMD control system, solve the problem of the control system high energy consumption existed in prior art, equipment manufacturing cost is high, the problem that generating efficiency is low.
The technical solution adopted in the present invention is, a kind of wave energy that utilizes provides the method for power for wind energy conversion system AMD control system, it is characterized in that: comprise the following steps:
Step 1, utilizes the float 4 be connected with spar body 5 to be caught by wave energy;
Step 2, utilizes the to-and-fro motion of oil hydraulic cylinder 2 inner carrier that wave energy is converted to air energy or hydraulic energy;
Step 3, utilizes the air energy in gas-liquid accumulator 10 or hydraulic energy, respectively by becoming discharge capacity air pressure motor 7 and becoming displacement hydraulic motor 12 into being arranged on AMD control system 6 in cabin and the AMD control system 1 be arranged on spar platform provides power.
Feature of the present invention is also,
Spar body stretches into marine, on spar body, cover has float, and float is connected with oil hydraulic cylinder, and float is arranged across the sea, under oil hydraulic cylinder is arranged on sea, the float be connected with spar body moves up and down under the effect of wave force, drives piston in hydraulic cylinder motion, when in oil hydraulic cylinder, piston moves downward, in liquid piston cylinder, seawater is by piston press-in gas-liquid accumulator, the selector valve a that liquid piston cylinder top is arranged starts, and makes ambient air enter liquid piston cylinder, keeps pressure balance in liquid piston cylinder; When piston upwards in oil hydraulic cylinder, the air in liquid piston cylinder is compressed, and inject gas-liquid accumulator when being compressed to rated pressure value, the selector valve b arranged bottom oil hydraulic cylinder starts, and keeps pressure balance in oil hydraulic cylinder by extraneous seawater injection liquid cylinder pressure; When piston upwards in oil hydraulic cylinder, seawater is inhaled into the cavity of below hydraulic cylinder piston, and when in oil hydraulic cylinder, piston moves downward, the seawater below piston is pressurized and inject gas-liquid accumulator;
Step 3, air in liquid piston cylinder is compressed, seawater pressurizeed simultaneously and inject gas-liquid accumulator, respectively by air pressure motor and oil hydraulic motor for being arranged on AMD control system in cabin and the AMD control system be arranged on spar platform provides power;
Step 3 is specially:
The air on gas-liquid accumulator top after pressurization by air-pressure duct for air pressure motor provides air energy, air energy is converted to mechanical energy by air pressure motor, for the AMD control system be arranged in cabin provides driving force;
The seawater of gas-liquid accumulator bottom enters oil hydraulic motor by hydraulic tubing after pressurization, and for oil hydraulic motor provides hydraulic energy, hydraulic energy is converted to mechanical energy by oil hydraulic motor, and provides driving force for wind energy conversion system AMD control system.
The invention has the beneficial effects as follows and to store by converting the wave energy enriched in ocean to compressed air energy, for wind machine structure AMD active control system provides the stable driving force continued, save valuable electric energy, improve wind energy conversion system complete machine delivery efficiency.All using seawater as hydraulic medium in compressed energy-storage process, even if there is a small amount of leakage also can not to environment at work, comparing with oil be the traditional hydraulic technologies more environmental protection and economy of medium.In to air intake and compression process, adopt liquid piston technology, can effectively avoid the problem such as Leakage Gas and frictional heating, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of wave energy collection and the conversion equipment utilized in the present invention.
In figure, 1.spar body AMD control system, 2. oil hydraulic cylinder, 3. connecting rod, 4. float, 5.spar body, 6. AMD control system in cabin, 7. become discharge capacity air pressure motor, 8. liquid piston cylinder, 9. selector valve a, 10. gas-liquid accumulator, 11. selector valve b, 12. become displacement hydraulic motor.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present invention is a kind of utilizes wave energy to provide the method for power for wind energy conversion system AMD control system, adopt device, structure is: as shown in Figure 1, comprise and be socketed in oil hydraulic cylinder 2 on spar platform 5 and float 4 from the bottom to top successively, connected by pull bar 3 between oil hydraulic cylinder 2 and float 4, float 4 is movably arranged on spar platform, the lower end of oil hydraulic cylinder 2 is connected with selector valve a11, selector valve a11 is connected by the bottom of hydraulic tube with gas-liquid accumulator 10, the upper end of gas-liquid accumulator 10 is connected with selector valve b9 by pneumatic tube, selector valve b9 is arranged on the upper end of liquid piston cylinder 8, the bottom of liquid piston cylinder 8 is connected by the upper end of hydraulic tube with oil hydraulic cylinder 2, the upper end of gas-liquid accumulator 10 is connected with air pressure motor 7 by pneumatic tube, the lower end of gas-liquid accumulator 10 is connected with oil hydraulic motor 12 by hydraulic tube, float 4 is arranged on spar platform by bearing arrangement, selector valve a11 and selector valve b9 is the solenoid directional control valve of two-position four-way, selector valve a11 is the hydraulicdirectional control valve of two-position four-way,
Wherein, float 4 is across the sea floating, and oil hydraulic cylinder 2 is submerged in below sea;
Air pressure motor 7 in the present invention is connected by coupling with AMD control system 6 in the cabin being arranged on wind energy conversion system;
Oil hydraulic motor 12 in the present invention is connected by coupling with the AMD control system 1 be arranged on wind energy conversion system spar platform;
Specifically comprise the following steps:
Step 1, utilizes the float 4 be connected with spar body 5 to be caught by wave energy;
Step 2, utilizes the to-and-fro motion of oil hydraulic cylinder 2 inner carrier that wave energy is converted to air energy or hydraulic energy;
In step 2, wave energy is converted to mechanical energy to be specially:
Spar body 5 stretches into marine, on spar body 5, cover has float 4, float 4 is connected with oil hydraulic cylinder 2, float 4 arranges across the sea, under oil hydraulic cylinder 2 is arranged on sea, the float 4 be connected with spar body 5 moves up and down under the effect of wave force, drive the motion of oil hydraulic cylinder 2 inner carrier, when in oil hydraulic cylinder 2, piston moves downward, in liquid piston cylinder 8, seawater flows into oil hydraulic cylinder 2 upper cavity, the selector valve a9 that liquid piston cylinder 8 top is arranged starts, and makes ambient air enter liquid piston cylinder 8, keeps pressure balance in liquid piston cylinder 8; When piston upwards in oil hydraulic cylinder 2, air in liquid piston cylinder 8 is compressed, inject gas-liquid accumulator 10 when being compressed to rated pressure value (10MPa), the selector valve b11 arranged bottom oil hydraulic cylinder 2 starts, and keeps pressure balance in oil hydraulic cylinder 2 by extraneous seawater injection liquid cylinder pressure 2; When piston upwards in oil hydraulic cylinder 2, seawater is inhaled into the lower chamber of oil hydraulic cylinder 2, and when in oil hydraulic cylinder 2, piston moves downward, the seawater in lower chamber is pressurized and inject gas-liquid accumulator 10;
In oil hydraulic cylinder 2, piston is connected with float 4 by connecting rod 3, and piston stroke is the same with float 4 stroke, can do spacing control during limit sea situation to float 4;
Step 3, utilizes the pressurized air in gas-liquid accumulator 10 and high pressure sea water, respectively by becoming discharge capacity air pressure motor 7 and becoming displacement hydraulic motor 12 into being arranged on AMD control system 6 in cabin and the AMD control system 1 be arranged on spar platform provides power;
Step 3 is specially:
The pressurized air on gas-liquid accumulator 10 top is by air-pressure duct for air pressure motor 7 provides air energy, and air energy is converted to mechanical energy by air pressure motor 7, and when needed for the AMD control system 6 be arranged in cabin provides driving force;
The seawater of gas-liquid accumulator 10 bottom enters oil hydraulic motor 12 by hydraulic tubing, and for oil hydraulic motor 12 provides hydraulic energy, hydraulic energy is converted to mechanical energy by oil hydraulic motor 12, and when needed for spar body AMD control system 1 provides driving force.

Claims (3)

1. utilize wave energy to provide a method for power for wind energy conversion system AMD control system, it is characterized in that: comprise the following steps:
Step 1, utilizes the float (4) be connected with spar body (5) to be caught by wave energy;
Step 2, utilizes oil hydraulic cylinder (2) inner carrier to-and-fro motion that wave energy is converted to air energy or hydraulic energy;
Step 3, utilize the air energy in gas-liquid accumulator (10) or hydraulic energy, respectively by becoming discharge capacity air pressure motor (7) and becoming displacement hydraulic motor (12) into the AMD control system (6) that is arranged in cabin be arranged on spar body AMD control system (1) and provide power.
2. the wave energy that utilizes according to claim 1 provides the method for power for wind energy conversion system AMD control system, it is characterized in that: in step 2, wave energy is converted to air energy or hydraulic energy, is specially:
Described spar body (5) stretches into marine, the upper cover of spar body (5) has float (4), float (4) is connected with oil hydraulic cylinder (2), float (4) is arranged across the sea, under oil hydraulic cylinder (2) is arranged on sea, the float (4) be connected with spar body (5) moves up and down under the effect of wave force, drive the motion of oil hydraulic cylinder (2) inner carrier, when in oil hydraulic cylinder (2), piston moves downward, in liquid piston cylinder (8), seawater flows into oil hydraulic cylinder (2) upper cavity, the selector valve a (9) that liquid piston cylinder (8) top is arranged starts, ambient air is made to enter liquid piston cylinder (8), keep pressure balance in liquid piston cylinder (8), when piston upwards in oil hydraulic cylinder (2), air in liquid piston cylinder (8) is compressed, be compressed to when force value is 10MPa and inject gas-liquid accumulator (10), the selector valve b (11) that oil hydraulic cylinder (2) bottom is arranged starts, and keeps pressure balance in oil hydraulic cylinder (2) by extraneous seawater injection liquid cylinder pressure (2), when piston upwards in oil hydraulic cylinder (2), seawater is inhaled into the cavity of below oil hydraulic cylinder (2) piston, piston moves downward in the oil hydraulic cylinder (2), and the seawater below piston is pressurized and inject gas-liquid accumulator (10).
3. the wave energy that utilizes according to claim 1 and 2 provides the method for power for wind energy conversion system AMD control system, it is characterized in that: step 3 is specially:
The pressurized air on gas-liquid accumulator (10) top provides air energy by air-pressure duct for becoming discharge capacity air pressure motor (7) after pressurization, become discharge capacity air pressure motor (7) and air energy is converted to mechanical energy, for the AMD control system (6) be arranged in cabin provides driving force;
The seawater of gas-liquid accumulator (10) bottom is entered by hydraulic tubing and becomes displacement hydraulic motor (12) after pressurization, hydraulic energy is provided for becoming displacement hydraulic motor (12), become displacement hydraulic motor (12) and hydraulic energy is converted to mechanical energy, and provide driving force for spar body AMD control system (1).
CN201410787689.7A 2014-12-17 2014-12-17 Method utilizing wave energy for providing power for wind turbine AMD control systems Active CN104533698B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019075655A1 (en) * 2017-10-18 2019-04-25 大连理工大学 Single pile platform-based vertical axis wind turbine and vertical-horizontal bidirectional wave energy power generation integrated structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107630787B (en) * 2017-08-28 2019-05-28 西安理工大学 A kind of floating marine wind power generation plant with constant pressure liquid energy storage

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Publication number Priority date Publication date Assignee Title
US4253032A (en) * 1978-12-13 1981-02-24 Lochner Johannes P A Utilization of wave motion
CN1717542A (en) * 2002-10-10 2006-01-04 独立自然资源公司 Sea wave energy converter
KR20070115733A (en) * 2006-05-30 2007-12-06 김승수 Power generation system using wind force, tide, oceanic current, and wave-force
CN102345553A (en) * 2011-10-15 2012-02-08 浙江大学舟山海洋研究中心 Marine wave-energy power generating device
CN102506004A (en) * 2011-11-01 2012-06-20 浙江大学 Compressed air type energy accumulation stable power generation device adopting liquid piston
CN102506005A (en) * 2011-11-17 2012-06-20 中国水利水电科学研究院 Device and method for parametric resonance-based float-hydraulic wave energy power generation
CN102678431A (en) * 2012-06-06 2012-09-19 浪能电力科研有限公司 Wave energy conversion system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253032A (en) * 1978-12-13 1981-02-24 Lochner Johannes P A Utilization of wave motion
CN1717542A (en) * 2002-10-10 2006-01-04 独立自然资源公司 Sea wave energy converter
KR20070115733A (en) * 2006-05-30 2007-12-06 김승수 Power generation system using wind force, tide, oceanic current, and wave-force
CN102345553A (en) * 2011-10-15 2012-02-08 浙江大学舟山海洋研究中心 Marine wave-energy power generating device
CN102506004A (en) * 2011-11-01 2012-06-20 浙江大学 Compressed air type energy accumulation stable power generation device adopting liquid piston
CN102506005A (en) * 2011-11-17 2012-06-20 中国水利水电科学研究院 Device and method for parametric resonance-based float-hydraulic wave energy power generation
CN102678431A (en) * 2012-06-06 2012-09-19 浪能电力科研有限公司 Wave energy conversion system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019075655A1 (en) * 2017-10-18 2019-04-25 大连理工大学 Single pile platform-based vertical axis wind turbine and vertical-horizontal bidirectional wave energy power generation integrated structure

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Effective date of registration: 20171127

Address after: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang street, Longsheng Gold Dragon Road community e-commerce incubator exhibition Tao Commercial Plaza E block 706

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