CN106837674B - A kind of multi-energies hybrid power generating system - Google Patents

A kind of multi-energies hybrid power generating system Download PDF

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Publication number
CN106837674B
CN106837674B CN201710046301.1A CN201710046301A CN106837674B CN 106837674 B CN106837674 B CN 106837674B CN 201710046301 A CN201710046301 A CN 201710046301A CN 106837674 B CN106837674 B CN 106837674B
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China
Prior art keywords
air
lower shell
support column
shell
power generating
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CN106837674A (en
Inventor
杨永良
王世来
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East China Sea Science and Technology College of ZJOU
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East China Sea Science and Technology College of ZJOU
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/24Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy to produce a flow of air, e.g. to drive an air turbine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/007Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • H02S10/12Hybrid wind-PV energy systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/90Mounting on supporting structures or systems
    • F05B2240/95Mounting on supporting structures or systems offshore
    • 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
    • Y02E10/50Photovoltaic [PV] energy
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/727Offshore wind turbines

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Wind Motors (AREA)

Abstract

The invention belongs to technical field of power generation, are related to a kind of multi-energies hybrid power generating system, and which solve the not high technical problems of existing electricity generation system energy utilization rate.This multi-energies hybrid power generating system includes the support column that can stand on seabed, lower shell is provided on support column, intake antrum is offered on lower shell, the upper end of lower shell is provided with upper shell, inner cavity is offered in upper shell, turbogenerator is provided in the middle part of inner cavity, is provided on turbogenerator and inner cavity is divided into inlet air plenum and goes out the partition board of air compartment, the top and bottom of inlet air plenum are respectively arranged with enterprising air-valve and lower air inlet valve, and the top and bottom for going out air compartment are respectively arranged with outlet valve and lower outlet valve;It is provided with wind-driven generator at the top of support column, solar panel is provided on the outer tube wall of lower shell, solar panel is connected with solar generator.The present invention can effectively improve the utilization rate of the energy, realize power generation of providing multiple forms of energy to complement each other.

Description

A kind of multi-energies hybrid power generating system
Technical field
The invention belongs to technical field of power generation, are related to a kind of multi-energies hybrid power generating system.
Background technology
With the increasingly short of global conventional energy resource and use a series of environmental problems, the world caused by fossil energy Various countries increase attention and input to renewable energy utilization, and exploitation novel renewable energy is included in by national governments Agenda, and it is equipped with relevant policy support for it, including solar power generation, wind-power electricity generation, wave-energy power generation, bioenergy power generation Deng.
Wherein, the energy of wave and wave period, wave height square and the width of wave slope it is directly proportional, in marine energy In, wave energy is most unstable one kind, has random variability in time scale, sea situation is different, then the energy of wave It is different;Season is different, and the variation of wave energy is very big;On space scale, the energy density of different geographical, wave energy also has Very big difference.Therefore, the stationarity for collecting wave energy how is effectively improved, the matter of wave energy generating set output electric energy is improved Amount, is urgent problem.
Currently, mainly alleviating the fluctuation of wave energy, such as patent by design to wave energy transfer device and optimization Numbers 201410226337.4 Chinese patent discloses a kind of in-line type multi cylinder Pneumatic type wave energy generating device, including wave Can collection system, wave energy conversion system, pressure regulation systems stabilisation, by increase mechanical delivery device in flywheel rotary inertia come Adjust the fluctuation of wave energy.
Although above-mentioned patent improves the utilization ratio of wave energy to a certain extent, problem is not well solved yet, Therefore, the utilization rate for how improving wave energy, is not well solved yet.
Invention content
The present invention be directed to the above problems existing for existing technology, provide a kind of multi-energies hybrid power generating system, the present invention The technical problem to be solved is that:How this electricity generation system of utilization rate to(for) the energy is improved.
Object of the invention can be realized by the following technical scheme:
A kind of multi-energies hybrid power generating system, which is characterized in that the electricity generation system includes that can stand on the support column in seabed, It is provided with lower shell on the support column, intake antrum is offered on the lower shell, the upper end of the lower shell is provided with cylinder Body offers inner cavity in the upper shell, is provided with turbogenerator in the middle part of the inner cavity, is provided on the turbogenerator The inner cavity is divided into inlet air plenum and goes out the partition board of air compartment, the top and bottom of the inlet air plenum are respectively arranged with enterprising air-valve With lower air inlet valve, it is described go out air compartment top and bottom be respectively arranged with outlet valve and lower outlet valve.
Its operation principle is as follows:This electricity generation system when in use, can make lower shell part be in water, the fortune up and down of wave It is dynamic, when the water surface in intake antrum rises, since enterprising air-valve, lower air inlet valve, upper outlet valve and lower outlet valve are check valve, It is squeezed by water so that the air in intake antrum body enters from the lower air inlet valve of air inlet chamber, and is arranged from the upper outlet valve for going out air compartment Go out, to make air-flow flow through the turbine of turbogenerator, turbogenerator is made to generate electricity;When the water surface in intake antrum body declines When, the air pressure in intake antrum reduces so that and air-flow can enter from the enterprising air-valve of inlet air plenum to be discharged from the lower outlet valve for going out air compartment, Into in intake antrum, again such that air-flow flows through the turbine of turbogenerator, electrical power generators are driven.This system is reasonably by wave Wave can use, the influence for the factors such as overcome wave unstable.
In a kind of above-mentioned multi-energies hybrid power generating system, the support column has two, the side sliding of the lower shell It is set on two support columns, the driving source that lower shell can be driven to lift is provided between the support column and lower shell.If After driving source, the height of lower shell can be adjusted according to sea level height, lower shell is made to remain part under sea, from And enable wave energy normal power generation.
In a kind of above-mentioned multi-energies hybrid power generating system, is rotated as a kind of scheme, on the support column and be provided with two A gear is connected by chain between two gears, and the side of the lower shell is fixedly connected with the chain, the driving source Include and motor that wherein a gear is connected.Motor rotates, and drives the rotation of a wherein gear, and then drives chain movement, from And realize the lifting of lower shell.
In a kind of above-mentioned multi-energies hybrid power generating system, alternatively, the driving source includes being fixed on institute The cylinder on support column is stated, the cylinder is parallel with support column, and the piston rod of the cylinder is connected with the side of lower shell.Gas The piston rod of cylinder is flexible, drives lower shell lifting.
In a kind of above-mentioned multi-energies hybrid power generating system, offered on the side wall of the upper shell and the inlet air plenum phase The air inlet of connection is provided with the shutter that can seal the air inlet around the air inlet;The side of the upper shell Be further opened on wall with it is described go out the air outlet that is connected of air compartment, the outlet air can be sealed by being provided with around the air outlet Mouth goes out air door.When wind-force is smaller, can be sealed with air outlet by shutter and outlet air goalkeeper air inlet, then pass through driving source Upper shell part is dropped under sea, is realized and is generated electricity by wave energy;It, then can will be upper by driving source and when wind-force is larger Cylinder is moved on sea, and is opened shutter and gone out air door, by wind blows turbine, realizes power generation.
In a kind of above-mentioned multi-energies hybrid power generating system, the upper shell is rotatablely connected with lower shell, the upper shell Top be provided with wing plate, the enterprising air-valve may be contained within the top of upper shell with upper outlet valve;The bottom of the upper shell The roof of lower shell is constituted, the lower air inlet valve is opened in the bottom of the upper shell with lower outlet valve.It can be according to practical wind To rotation wing plate makes air inlet be directed at air port, improves wind power generation efficiency as much as possible;And using the bottom of upper shell as lower cylinder The top of body can both save material, ensure that seawater can enter inlet air plenum by intake antrum and lower air inlet valve, realize hair Electricity;Upper shell can be realized with lower shell rotation connection by sealing bearing.
In a kind of above-mentioned multi-energies hybrid power generating system, the upper end of the intake antrum is tapered.Intake antrum is designed as Taper can form wave energy and save up strength, improve generating efficiency.
In a kind of above-mentioned multi-energies hybrid power generating system, wind-driven generator is provided at the top of the support column.Design There is wind-driven generator, further wind energy utilization can be got up, really realizes and provide multiple forms of energy to complement each other, improve generating efficiency.
In a kind of above-mentioned multi-energies hybrid power generating system, solar cell is provided on the outer tube wall of the lower shell Plate, the solar panel connection accumulator or power transmission network.It is designed with solar cell on the outer tube wall of lower shell Plate then can also use solar energy, further realizes multipotency mutually in fact, improves generating efficiency.
Compared with prior art, the present invention has the following advantages:
1, this electricity generation system can reasonably get up wave power utilization, the influence for the factors such as overcome wave unstable;
2, this generation system designs has driving source, can adjust the height of lower shell according to sea level height, make lower shell always Holding part is under sea, to enable wave energy normal power generation;
3, it when wind-force is smaller, can be sealed with air outlet by shutter and outlet air goalkeeper air inlet, then pass through driving source Upper shell part is dropped under sea, is realized and is generated electricity by wave energy;It, then can will be upper by driving source and when wind-force is larger Cylinder is moved on sea, and is opened shutter and gone out air door, by wind blows turbine, realizes power generation;
4, this electricity generation system is provided with wind-driven generator and solar generator, it can be achieved that providing multiple forms of energy to complement each other, and improves the energy Utilization rate.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the partial enlarged view of Fig. 1.
In figure, 1, support column;2, lower shell;3, intake antrum;4, upper shell;5, turbogenerator;6, inlet air plenum;7, outlet air Room;8, partition board;9, enterprising air-valve;10, lower air inlet valve;11, upper outlet valve;12, lower outlet valve;13, gear;14, chain;15、 Air inlet;16, shutter;17, air outlet;18, go out air door;19, wing plate;20, wind-driven generator;21, solar panel.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.
As shown in Figure 1 and Figure 2, this electricity generation system includes that can stand on the support column 1 in seabed, and lower cylinder is provided on support column 1 Body 2 offers intake antrum 3 on lower shell 2, and the upper end of intake antrum 3 is tapered, and the upper end of lower shell 2 is provided with upper shell 4, on Offer inner cavity in cylinder 4, turbogenerator 5 be provided in the middle part of inner cavity, be provided on turbogenerator 5 by inner cavity be divided into Air compartment 6 and the partition board 8 for going out air compartment 7, the top and bottom of inlet air plenum 6 are respectively arranged with enterprising air-valve 9 and lower air inlet valve 10, outlet air The top and bottom of room 7 are respectively arranged with outlet valve 11 and lower outlet valve 12.
Specifically, support column 1 has two, and the side of lower shell 2 is slideably positioned on two support columns 1, support column 1 with The driving source that lower shell 2 can be driven to lift is provided between lower shell 2.It is rotated in the present embodiment, on support column 1 and is provided with two A gear 13 is connected by chain 14 between two gears 13, and side and the chain 14 of lower shell 2 are fixedly connected with, driving source packet It includes and motor that wherein a gear 13 is connected.As other schemes, driving source includes the cylinder being fixed on support column 1, gas Cylinder is parallel with support column 1, and the piston rod of the cylinder is connected with the side of lower shell 2.
As shown in Figure 1 and Figure 2, the air inlet 15 being connected with inlet air plenum 6, air inlet 15 are offered on the side wall of upper shell 4 Around be provided with the shutter 16 that can seal air inlet 15;It is further opened on the side wall of upper shell 4 and goes out air compartment 7 and be connected Air outlet 17, be provided with around air outlet 17 can seal air outlet 17 go out air door 18.Preferably, upper shell 4 with Lower shell 2 is rotatablely connected, and the top of upper shell 4 is provided with wing plate 19, and enterprising air-valve 9 may be contained within upper shell with upper outlet valve 11 4 top;The bottom of upper shell 4 constitutes the roof of lower shell 2, and lower air inlet valve 10 is opened in upper shell 4 with lower outlet valve 12 Bottom.
As shown in Figure 1, the top of support column 1 is provided with wind-driven generator 20, the sun is provided on the outer tube wall of lower shell 2 It can solar panel 21, the connection of solar panel 21 connection accumulator or power transmission network.
Working principle of the present invention is as follows:This electricity generation system is in use, when wind-force is smaller, can by shutter with go out Air inlet and air outlet are sealed, then are dropped to upper shell part under sea by driving source by air door, are realized by wave energy Power generation;And when wind-force is larger, then upper shell can be moved on sea by driving source, and open shutter and go out air door, By wind blows turbine, power generation is realized, and can be according to practical wind direction, rotating wing plate makes air inlet be directed at air port, as far as possible Improve wind power generation efficiency in ground;Finally combine with wind-driven generator and solar generator, realizes power generation of providing multiple forms of energy to complement each other.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (8)

1. a kind of multi-energies hybrid power generating system, which is characterized in that the electricity generation system includes that can stand on the support column in seabed (1), it is provided with lower shell (2) on the support column (1), intake antrum (3), the lower shell are offered on the lower shell (2) (2) upper end is provided with upper shell (4), and inner cavity is offered in the upper shell (4), turbine generation is provided in the middle part of the inner cavity Machine (5) is provided on the turbogenerator (5) and the inner cavity is divided into inlet air plenum (6) and goes out the partition board (8) of air compartment (7), The top and bottom of the inlet air plenum (6) are respectively arranged with enterprising air-valve (9) and lower air inlet valve (10), it is described go out air compartment (7) Top and bottom are respectively arranged with outlet valve (11) and lower outlet valve (12);Offered on the side wall of the upper shell (4) with The air inlet (15) that the inlet air plenum (6) is connected, the air inlet can be sealed by being provided with around the air inlet (15) (15) shutter (16);Be further opened on the side wall of the upper shell (4) with it is described go out the air outlet that is connected of air compartment (7) (17), be provided with around the air outlet (17) can seal the air outlet (17) go out air door (18).
2. multi-energies hybrid power generating system according to claim 1, which is characterized in that the support column (1) has two, described The side of lower shell (2) is slideably positioned on two support columns (1), and energy is provided between the support column (1) and lower shell (2) The driving source for enough driving lower shell (2) to lift.
3. multi-energies hybrid power generating system according to claim 2, which is characterized in that rotate setting on the support column (1) There are two gear (13), it is connected by chain (14) between two gears (13), side and the chain of the lower shell (2) Item (14) is fixedly connected with, and the driving source includes the motor being connected with a wherein gear (13).
4. multi-energies hybrid power generating system according to claim 2, which is characterized in that the driving source is described including being fixed on Cylinder on support column (1), the cylinder is parallel with support column (1), and the side phase of the piston rod of the cylinder and lower shell (2) Connection.
5. multi-energies hybrid power generating system according to claim 4, which is characterized in that the upper shell (4) and lower shell (2) It is rotatablely connected, is provided with wing plate (19) at the top of the upper shell (4), the enterprising air-valve (9) is all provided with upper outlet valve (11) It is placed in the top of upper shell (4);The bottom of the upper shell (4) constitutes the roof of lower shell (2), the lower air inlet valve (10) with Lower outlet valve (12) is opened in the bottom of the upper shell (4).
6. multi-energies hybrid power generating system according to claim 5, which is characterized in that the upper end of the intake antrum (3) is in cone Shape.
7. multi-energies hybrid power generating system according to claim 1 or 2 or 3 or 4, which is characterized in that the support column (1) Top is provided with wind-driven generator (20).
8. multi-energies hybrid power generating system according to claim 1 or 2 or 3 or 4, which is characterized in that the lower shell (2) Solar panel (21) is provided on outer tube wall.
CN201710046301.1A 2017-01-20 2017-01-20 A kind of multi-energies hybrid power generating system Active CN106837674B (en)

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CN110425090A (en) * 2019-07-11 2019-11-08 深圳市安思科电子科技有限公司 A kind of offshore wind energy plant with function of safety protection

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US4316704A (en) * 1979-05-07 1982-02-23 Heidt Peter C Floating power generation assemblies and methods
CN1006486B (en) * 1985-11-30 1990-01-17 株式会社绿星社 Apparatus for generating electricity by wave force
DE102011118254A1 (en) * 2011-11-11 2013-05-16 Robert Bosch Gmbh Combined off-shore energy plant for producing wave and wind energy to be converted into electric energy, has wind turbine and/or wave turbine mechanically coupled with each other and connected with generator as function of sensor system
CN202971029U (en) * 2012-12-22 2013-06-05 中国科学院工程热物理研究所 Marine energy source comprehensive utilization system
CN103967696A (en) * 2014-03-10 2014-08-06 韩佳 Wave power generation device

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