CN117439523A - Solar energy-wave energy combined power generation system and wind wave resistance method - Google Patents
Solar energy-wave energy combined power generation system and wind wave resistance method Download PDFInfo
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- CN117439523A CN117439523A CN202311447570.0A CN202311447570A CN117439523A CN 117439523 A CN117439523 A CN 117439523A CN 202311447570 A CN202311447570 A CN 202311447570A CN 117439523 A CN117439523 A CN 117439523A
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- 238000010248 power generation Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 24
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- 229910000831 Steel Inorganic materials 0.000 claims description 23
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- 230000005674 electromagnetic induction Effects 0.000 description 7
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- 230000009471 action Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
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- 230000010355 oscillation Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/20—Collapsible or foldable PV modules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations 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
- F03B13/14—Adaptations 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
- F03B13/16—Adaptations 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 using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations 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
- F03B13/14—Adaptations 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
- F03B13/22—Adaptations 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 using the flow of water resulting from wave movements to drive a motor or turbine
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/38—Energy storage means, e.g. batteries, structurally associated with PV modules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a solar energy-wave energy combined power generation system and a wind wave resistance method, and relates to the field of wave energy power generation, wherein the system comprises a solar power generation device, a wave energy power generation device and a driving device; the solar power generation device comprises a vertical rod and a plurality of bracket groups; the bracket group comprises a first bracket and a second bracket, one side of the first bracket is rotatably connected with the upper part of the upright rod, and the other side of the first bracket is rotatably connected with the first side of the second bracket through a rotating pin; the wave energy power generation device is electrically connected with the driving device; the driving device is connected with the rotating pin and is used for controlling the movement of the rotating pin according to the output power change of the wave energy power generation device, when the support floats on the sea surface and bad weather occurs, the working state of the photovoltaic panel can be controlled through the buoyancy and the movement of the rotating pin, the photovoltaic panel is taken in underwater, risk avoidance is achieved, and the impact of stormy waves is effectively reduced.
Description
Technical Field
The invention relates to the field of wave energy power generation, in particular to a wind and wave resistant solar energy-wave energy combined power generation device.
Background
Marine ranches are the development direction of marine fishery, and are also important blue economic sources, and offshore energy supply is a problem to be solved urgently. The floating photovoltaic power generation is an advanced technology for collecting ocean energy, and the power generation efficiency is further improved by multi-energy complementation of solar energy, wave energy, wind energy and other energy sources.
Because the photovoltaic board sets up on the sea, it is all very big that the sea is weather or sea situation change, and extreme weather or abominable sea situation all are possible to damage the photovoltaic board, and recovery and maintenance of ocean equipment are comparatively difficult, need in time accomodate the photovoltaic board to the life of extension device. As disclosed in the chinese patent publication No. CN115800899a, an anti-wind and wave floating photovoltaic device and control method are disclosed, when the sensor detects a severe sea condition, the sensor is driven by the motor to shrink, and when the sea condition is normal, the sensor is redeployed, and the damage of wind and wave to the photovoltaic panel is effectively reduced.
The device can effectively reduce damage of wind waves to the photovoltaic panel, but the existing floating photovoltaic panel still stays on the sea after being folded, severe fluctuation of the sea still easily causes oscillation damage of the power generation device, and the photovoltaic panel with exposed periphery is also easily damaged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a solar energy-wave energy combined power generation system and a wind wave resistance method, which are used for solving the problem that a floating photovoltaic panel is still easy to damage after being folded in the prior art.
The first aspect of the invention provides a solar energy-wave energy combined power generation system, which comprises a solar power generation device, a wave energy power generation device and a driving device;
the solar power generation device comprises a vertical rod, a plurality of bracket groups and a driving device;
the support group is arranged around the vertical rod and comprises a first support and a second support, one side of the first support is rotatably connected with the upper part of the vertical rod, the other side of the first support is rotatably connected with the first side of the second support through a rotating pin, and a wave-preventing plate is arranged on the second side of the second support; the first support and the second support are used for fixing the photovoltaic panel, and the wave-preventing plate protrudes out of the surfaces of the second support and the photovoltaic panel;
the wave energy power generation device is electrically connected with the driving device;
the driving device is connected with the rotating pin and is used for controlling the movement of the rotating pin according to the output power change of the wave energy power generation device.
Preferably, the wave energy power generation device comprises a turbine generator set and a wave energy collection device, wherein an air chamber space is arranged on the wave energy collection device, the air chamber space is a space with a through hole at the bottom, and the cross section area of the air chamber space gradually decreases upwards from a preset area;
the turbine generator set is arranged on the upper portion of the vertical rod, and the top of the air chamber space is communicated with the turbine generator set through a pipeline.
Preferably, the turbo-generator set is located higher than the top of the plenum space, and the pipe at the top of the plenum space is connected to the turbo-generator set obliquely upward.
Preferably, the driving device comprises a motor, a lifting ring, a pulley and a steel cable, wherein the lifting ring is sleeved on the upright rod and is fixedly connected with the steel cable; the steel cable is movably connected with the motor output end and the pulley and is used for moving between the motor output end and the pulley under the drive of the motor; the lifting ring is connected with the rotating pin.
Preferably, the driving device further comprises a driving circuit for: when the power generation power of the turbine generator set is larger than a preset value, the driving motor drives the lifting ring to descend; when the power generation power of the turbine generator set is larger than a preset value, the driving motor drives the lifting ring to lift.
Preferably, the driving circuit comprises a first passage, a second passage and a self-holding electromagnetic switch, wherein the first passage comprises a first storage battery pack and an under-voltage relay, the second passage comprises a second storage battery pack and an over-voltage relay, and the control ends of the under-voltage relay and the over-voltage relay are connected in parallel with the turbine generator set; one end of the first passage and one end of the second passage are connected with one pole of a positive pole or a negative pole of the motor, and the other end of the first passage and the second passage are provided with contacts; the other pole of the motor is connected with a self-holding electromagnetic switch which is arranged in the movable area of the steel cable on the upright rod, and a switch triggering device is arranged on the steel cable.
Preferably, the switch triggering device is arranged on the lifting ring.
Preferably, the wave energy power generation device comprises a plurality of groups of wave energy collection devices, and the wave energy collection devices are arranged between adjacent bracket groups.
The second aspect of the invention provides a wind and wave resistance method of a solar energy-wave energy combined power generation system, the system comprises a solar power generation device, a wave energy power generation device and a driving device, and the method comprises the following steps: the driving device is electrically connected with the wave energy power generation device, and when the output power of the wave energy power generation device exceeds a threshold value, the driving device drives the solar power generation device to fold the photovoltaic panel for avoiding danger and keeps a folded state; and when the output power of the wave energy power generation device does not exceed a threshold value, the driving device releases the photovoltaic panel of the solar power generation device.
Compared with the prior art, the invention has the beneficial effects that:
the solar-wave energy combined power generation system comprises a solar power generation device, a wave energy power generation device and a driving device, wherein two supports for installing a photovoltaic panel in the solar power generation device can be folded through rotating pins, the driving device is connected with the rotating pins and is used for controlling the movement of the rotating pins according to the change of the output power of the wave energy power generation device, when the supports float on the sea surface and severe weather occurs, the working state of the photovoltaic panel can be controlled through buoyancy and the movement of the rotating pins, the photovoltaic panel is retracted into the water, risk avoidance is realized, and the impact of wind waves is effectively reduced;
according to the wind and wave resistance method of the solar energy-wave energy combined power generation system, provided by the second aspect of the invention, the driving device is electrically connected with the wave energy power generation device, and when the output power of the wave energy power generation device exceeds a threshold value, the driving device drives the solar energy power generation device to fold the photovoltaic panel to avoid danger and keep a folded state; when the output power of the wave power generation device does not exceed the threshold value, the driving device releases the photovoltaic panel of the solar power generation device, and the impact of wind and waves is effectively reduced, so that the danger avoidance of the device is independent of a sensor or remote control, and the device has higher reliability in remote areas or severe weather.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of one direction of a solar-wave energy cogeneration system according to an embodiment of the disclosure;
FIG. 2 is a top view of a solar-wave energy cogeneration system shown in an embodiment of the application;
FIG. 3 is a motion gesture diagram of the contraction and expansion process of the solar-wave energy combined power generation system according to the embodiment of the application;
fig. 4 is a schematic structural diagram of a solar-wave energy combined power generation system bracket set according to an embodiment of the present application;
FIG. 5 is a schematic view of the structure of the air chamber constriction of the wave energy collecting device of the solar-wave energy combined power generation system according to the embodiment of the present application;
FIG. 6 is a circuit diagram of a solar-wave energy cogeneration system according to an embodiment of the disclosure;
fig. 7 is a circuit diagram of a driving device in the wind and wave resistant solar-wave energy combined power generation system according to the embodiment of the application.
In the figure, 1, a photovoltaic panel; 2. a rotation pin; 3. a vertical rod; 4. an air inlet; 5. a turbine generator set; 6. a water outlet; 7. a pulley; 8. a lifting ring; 9. self-holding electromagnetic induction switch; 10. a wire rope; 11. an electric control area; 12. a driving device; 13. a cable; 14. a wave energy collection device; 15. a wind wave prevention plate; 16. a pontoon; 17. and (3) a bracket.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In an embodiment, as shown in fig. 1 to 4, the solar-wave energy combined power generation system provided in this embodiment includes a solar power generation device and a wave power generation device;
the solar power generation device comprises a vertical rod 3 and a plurality of bracket groups arranged around the vertical rod 3, wherein each bracket group comprises two brackets 17, and a photovoltaic panel 1 is arranged on each bracket 17; the brackets 17 are a first bracket (which is closer to the vertical rod) and a second bracket according to the position relation with the vertical rod, the first bracket is rotatably connected with the upper part of the vertical rod 3, and the side of the second bracket away from the vertical rod is provided with a wind wave preventing plate 15 (see figure 4);
the length of the wind wave prevention plate 15 is greater than or equal to that of one side of the second support away from the upright post, one side of the wind wave prevention plate 15 is fixed with one side of the second support away from the upright post, and the whole wind wave prevention plate is higher than the second support and a photovoltaic plate arranged on the second support, so that wind waves are prevented from rushing on the photovoltaic plate;
the two brackets 17 are rotatably connected through the rotary pin 2, a buoyancy device is arranged on the brackets 17 to provide buoyancy support for the brackets 17 and assist in unfolding or folding the two brackets 17, and in the embodiment, a pontoon 16 is arranged at the edge or the bottom of the edge of the brackets 17 (see fig. 4);
the lower part of the upright 3 is an electric control area 11, and a driving device 12 is arranged in the electric control area 11. The driving device 12 comprises a motor, a lifting ring 8, a pulley 7 and a steel cable 10, wherein the steel cable 10 can rotationally connect the pulley 7 with the output end of the motor, the lifting ring 8 is fixed on the steel cable 10, and when the motor rotates, the steel cable 10 is driven to move between the pulley 7 and the motor, so that the lifting ring 8 is driven to ascend or descend, the steel cable of the lifting ring 8 is connected with the rotating pin 2, and when the lifting ring 8 moves up and down, the rotating pin 2 is released or pulled downwards;
in a more specific embodiment, the lifting ring 8 is sleeved on the upright 3, and at least two or more groups of steel cables 10 are symmetrically connected with the lifting ring 8, specifically according to the number of bracket groups; by adopting the lifting ring 8 to lift and control all the bracket groups, the control can be more uniform and stable;
through the structure, the motor is controlled to forward and reverse, so that the motor drives the lifting ring 8 to pull or release the rotating pin 2, and the two brackets 17 in each bracket group are folded or unfolded under the action of the pulling force of the rotating pin 2 and the buoyancy of seawater, so that the photovoltaic panel 1 is folded and unfolded;
with the above structure, when the photovoltaic panel is in use, the two brackets 17 of the bracket group can be unfolded for photovoltaic power generation by driving the lifting ring 8 to release the steel cable 10 which pulls the rotation pin 2; when severe weather occurs, the lifting ring 8 is driven to fold the steel cable which pulls the rotating pin 2, so that the two brackets 17 of the bracket group can be folded, the photovoltaic panel 1 is folded below the water surface, and the solar power generation device is protected under the severe weather;
after the photovoltaic panels 1 are folded, the wind wave prevention plates 15 are arranged on the second brackets, so that the two photovoltaic panels 1 and the two brackets 17 cannot be completely closed, and the situation that the photovoltaic panels or the two brackets 17 are attached and cannot be naturally unfolded when the steel cable 10 is released later is avoided;
meanwhile, under severe weather, a relatively closed space can be formed between the two photovoltaic plates on the two brackets 17 and the wind wave prevention plate 15, the brackets are arranged outside, the photovoltaic plates face inwards, and the impact of outside sea waves on the photovoltaic plates can be reduced under the sea surface.
Referring to fig. 2, in a preferred embodiment, several groups of brackets are uniformly arranged around the upright 3 to form groups of brackets pointing in 8 directions; forming an opening shape gradually decreasing from outside to inside.
In a more preferred embodiment, each set of supports comprises 4, 6, etc. even numbers of supports 17, the supports 17 being connected in turn by rotation pins 2, the lifting ring 8 being connected with rotation pins 2 at intervals by means of a wire rope, in particular, for example, even numbers of supports 17 being connected by odd numbers of rotation pins 2, rotation pins 2 being numbered in turn as X1, X2, X3 … … X2n+1, rotation pins 2 being numbered as X1, X3, X5, … …, X2n-1, x2n+1 being connected with lifting ring 8; correspondingly, besides the outermost support 17 is provided with the storm panel 15, at least one surface of two adjacent supports 17 is provided with a protruding structure for replacing the storm panel 15, and by combining the structure of the previous embodiment, the photovoltaic panel 1 with a larger area and capable of being folded and unfolded can be formed through the scheme in the embodiment.
On the basis of the solar power generation device in the previous embodiment, referring to fig. 2, in the solar power generation device of the present invention, a plurality of wave energy collecting devices 14 are further disposed between adjacent bracket groups; referring to fig. 5, an air chamber space is provided in the wave energy collecting device 14, and a plurality of through holes are provided at the bottom of the air chamber space;
correspondingly, the upper part of the upright post 3 is provided with a turbine chamber, the turbine chamber is provided with an air inlet, the top is provided with an air outlet 4, the bottom is provided with a water outlet 6, the air chamber space is communicated with the air inlet of the turbine chamber through a pipeline, and a turbine generator set 5 is arranged in the turbine chamber;
the turbine chamber is separated from the electric control area 11 by a partition.
When the solar energy-wave energy combined power generation device is in a working state in seawater, the seawater fluctuates and enters the air chamber space through the through hole at the bottom of the air chamber space, the air chamber space is compressed, so that air with higher pressure flows into the turbine chamber, and the plurality of wave energy collecting devices 14 jointly push the turbine generator set 5 to do work and collect energy generated by seawater oscillation; the plenum space is connected with the turbine generator set 5 through a pipeline, see fig. 5, and the pipeline on the plenum space is connected into the turbine chamber of the turbine generator set 5 obliquely upwards;
in a preferred embodiment, the wave energy collecting apparatus 14 has a cylindrical shape in appearance, and a plurality of wave energy collecting apparatuses 14 are distributed in an array form between the bracket sets, by which the impact of sea water can be effectively resisted;
in one particular embodiment, the plurality of wave energy collecting devices 14 in the region between each two stent groups form a triangular array according to the shape of the region; in this embodiment, 3 wave energy collecting devices 14 are used to form an equilateral triangle array, two wave energy collecting devices 14 are outside, and one wave energy collecting device 14 is inside; in other embodiments, more similar array configurations may be employed;
in a preferred embodiment, referring to fig. 5, the air chamber space of the wave energy collecting apparatus 14 is a semi-closed space of a tapered structure, i.e., the bottom (a portion close to the through hole) of the air chamber space has a larger area and is tapered or tapered upward, and as a whole, the cross-sectional area of the air chamber space is tapered upward from at least a preset area of the bottom, the preset area being set according to an actual structure, and in the present embodiment, the preset area does not include an air hole portion and communicates from the air hole;
with this structure, in the present embodiment, when sea water fluctuates, the through hole of the wave energy collecting device 14 communicates with the communicating sea water and the air chamber space, and when the water surface rises, air in the air chamber space is compressed, and the compression of the air chamber space is not only related to the pressure of the submerged sea water depth, but also related to the inertial movement of sea surface fluctuation, and by the structure in the present embodiment, the inertial impact of the air chamber space in which sea water of a large momentum is reduced in the latter half can be realized.
Meanwhile, when the seawater fluctuates, the seawater fluctuation with a larger area drives the second half of the smaller area to be further compressed through inertia, so that the stroke and the pressure intensity of the air chamber space are exponentially changed when the air chamber space is compressed by the seawater, the air compression efficiency is effectively improved, and the power generation efficiency of the turbine generator set 5 is further improved;
in a second embodiment, the present invention further provides a solar-wave energy combined power generation system, referring to fig. 6, where the solar-wave energy combined power generation system in this embodiment includes the solar-wave energy combined power generation device and the land power station in the above embodiment;
the solar energy-wave energy combined power generation device comprises a vertical rod 3, a storage battery, a rectifier, a cable 13 and an anchoring device, wherein in the wind and wave resistant solar energy-wave energy combined power generation device, a plurality of photovoltaic panels 1 form a photovoltaic power generation unit, a plurality of wave energy collecting devices 14 and a turbine power generation unit 5 form a wave energy power generation unit, the photovoltaic power generation unit is electrically connected with a land power station through the cable 13, and electric energy is transmitted to the land power station for unified dispatching; it should be noted that, the anchoring device is used for anchoring the solar-wave energy combined power generation device in a preset sea area, and may be a rope fixed to the sea bottom in this embodiment;
the wave energy collecting device 14 and the land power station are electrically connected with a storage battery in the vertical rod 3 and a load (a motor, a sensor and the like) for driving mechanical action through a rectifier; on the one hand, the electric energy generated by the wave energy collecting device 14 can be converted into direct current through a rectifier and stored in a storage battery of the vertical rod 3 to provide electric energy for relevant loads on the vertical rod 3; on the other hand, when the electric energy of the storage battery is insufficient, the storage battery can be supplemented by the land power station, or when the storage battery is in a full-electricity state, the electric energy continuously generated by the wave energy collecting device 14 can be transmitted to the land power station for dispatching;
further, in the present embodiment, the driving device is connected in parallel with the storage battery, so that the driving operation can be performed according to the output power of the wave energy collecting device 14.
In the third embodiment, as shown in fig. 1, fig. 6 and fig. 7 in combination, in this embodiment, referring to fig. 6, the load part in fig. 6 includes a protection resistor or a motor, and a driving circuit, referring to fig. 7, in this embodiment, there is further provided a structure of the driving circuit in the driving device, where the driving circuit includes a first path, a second path, and a self-holding electromagnetic switch;
in the figure, a motor forms two switchable paths with a storage battery 1, a storage battery 2, an undervoltage relay and an overvoltage relay, wherein a first path (1)) comprises the first storage battery and the undervoltage relay, a second path (2)) comprises a second storage battery and the overvoltage relay, a self-holding electromagnetic induction switch 9 is arranged in an electric control area 11, and when the self-holding electromagnetic switch 9 receives a signal, the communication between the first path and the second path is switched or disconnected. In the specific implementation, the self-holding electromagnetic induction switch 9 triggers a signal through a switch triggering device, and the switch triggering device can be arranged in the movable area of the steel cable on the upright rod and corresponds to the position of the self-holding electromagnetic induction switch 9, so that the triggering device is driven to move to trigger the switch when the steel cable moves; in this embodiment, the switch triggering device is disposed on the lifting ring.
The two passages are switched and connected through the holding electromagnetic switch 9, so that the driving motor 12 rotates positively to drive the steel cable 10 to rotate between the output end of the motor and the pulley 7, and drive the lifting ring 8 to move up and down, thereby pulling or releasing the steel cable which pulls the rotating pin 2.
Specifically, the control ends of the relays in the channels (1) and (2) are connected with the wave energy generator set in parallel, and when the output power of the wave energy generator set changes, the voltage of the control ends also changes, so that the risk avoidance is realized through the integral action of the voltage change control device of the wave energy generator set.
The fourth embodiment of the present invention provides a control method based on the solar energy-wave energy combined power generation system, wherein two working states of the power generation system, that is, a normal working state and a risk avoiding state, are realized through the control method, and specifically, the embodiment provides a wind and wave resisting method of the solar energy-wave energy combined power generation system, wherein the dependent system at least comprises a solar power generation device, a wave power generation device and a driving device, and the risk avoiding method specifically comprises: the driving device is electrically connected with the wave energy power generation device, and when the output power of the wave energy power generation device exceeds a threshold value, the driving device drives the solar power generation device to fold the photovoltaic panel for avoiding danger and keeping a folded state; and when the output power of the wave energy power generation device does not exceed the threshold value, the driving device releases the photovoltaic panel of the solar power generation device.
Based on the above method, in a preferred risk avoidance method, the folding of the photovoltaic panel of the solar power generation device may be further performed simultaneously with the output power of the solar power generation device, where the driving device drives the solar power generation device to fold the photovoltaic panel and stops the photovoltaic power generation when the output power of the wave power generation device exceeds the second threshold and the output power of the photovoltaic panel of the solar power generation device is lower than the third threshold.
In this embodiment, the second threshold is lower than the first threshold, that is, the wave power generation device has higher power output and the influence on the photovoltaic panel cannot reach the degree of risk avoidance, but because the third threshold is smaller, that is, the photovoltaic power generation efficiency is very low, the power generation meaning of the unfolding of the photovoltaic panel is not great, at this time, the folded state can be kept, so that when the wave is avoided, the photovoltaic panel is frequently unfolded or folded, and on the basis of the method, the photovoltaic panel can be prevented from being influenced by the output power of the wave power generation device only in overcast and rainy days, and the weather also accompanies larger wave change, so that the nonsensical unfolding of the photovoltaic panel is avoided.
Of course, based on the method, a person skilled in the art can adjust the circuit structure of the driving device according to the present application, and after understanding the core innovation of the present invention, the adjustment of this part is obvious and also falls within the protection scope of the present invention.
In a more preferred risk avoidance method, the wind and wave resistance method of the solar energy-wave energy combined power generation system further comprises delay control, namely a control unit is added in the driving device, and when the output power of the wave energy power generation device exceeds a first threshold value, the driving device is not directly started when the first output power is lower than the first threshold value; when the output power is lower than a first threshold value and the preset time of the continuous output power is lower than the first threshold value, starting the driving device after the output power monitoring of the preset time is finished, releasing the photovoltaic panel of the solar power generation device, wherein the preset time can be set according to the historical stormy wave data on the local ocean, and mainly refers to the duration of extreme stormy waves which damage the stable operation of the solar power generation device when the preset time is set, wherein the preset time is related to the specific structure of the solar power generation device, and the skilled person can set by combining the duration after finishing the stable test of the device;
compared with the method, the method further monitors the change condition of the output power of the wave power generation device, so that when the sea wave tends to be stable and is lower than the risk avoidance requirement, the photovoltaic panel is unfolded, and the photovoltaic panel of the solar power generation device can be effectively protected.
The following describes, in detail, how the control method provided by the present invention achieves switching between two states in combination with the structure of the foregoing embodiment:
in normal operation, the photovoltaic panel 1 is tiled on the sea surface to convert solar radiation into electric energy; the sea surface oscillation energy is collected by the wave energy collecting device 14 and the kinetic energy is converted into electric energy, at this time, the self-holding electromagnetic switch 9 is closed with the first passage and the second passage is opened, and the bracket group is kept in an unfolding state.
When sea conditions are severe, sea water oscillation is aggravated, the power generated by the turbine generator set 5 is increased, an output point is converted into direct current through a rectifier, so that the voltage of a control end of the under-voltage relay in the first passage is increased, a controlled end of the under-voltage relay is converted into a communicating state, the passage (1) is also converted into a communicating state, the motor starts to rotate positively, the lifting ring 8 is driven to move downwards through the corrosion-resistant steel cable 10, the photovoltaic panel 1 descends along with a transmission rod, and when one side of the photovoltaic panel (the first bracket) at the inner side and the photovoltaic panel (the second bracket) at the outer side is subjected to downward pulling force, the photovoltaic panel (the bracket group) synchronously turns under the combined action of pulling force and buoyancy, so that the folding and folding of the photovoltaic panel (the bracket group) are completed. When the lifting ring 8 descends to a specified position, the self-holding electromagnetic induction switch 9 in the electric control area is triggered, so that the switch of the first passage (1)) is opened, the switch of the second passage (2)) is closed, but at the moment, the overvoltage relay in the second passage is not triggered yet, so that the second passage is still in an open circuit state, the motor 12 stops working, and the photovoltaic panel 1 is kept in a folded state.
When the sea surface waves stop, the sea surface waves slow down, the power generated by the turbine generator set 5 is reduced to a normal level, the first passage is still in an open circuit state temporarily, the second passage switch is opened, the overvoltage relay is converted into a communication state under low voltage, the second passage is integrally converted into the communication state, the motor 12 starts to rotate reversely, the lifting ring 8 starts to lift, and the photovoltaic panel 1 is pushed to lift and expand. After the photovoltaic panel 1 reaches the sea surface, the lifting ring 8 triggers the self-holding electromagnetic induction switch 9 at the top of the electric control area 11 at a designated position to complete state switching of two circuits, the switch of the first passage is closed, the switch of the second passage is opened, and the motor 12 stops running.
According to the invention, the novel umbrella-shaped folding mode is adopted, the photovoltaic panel 1 can be stored under water, the damage to the photovoltaic panel 1 caused by severe sea conditions is reduced, and the driving device is electrically connected with the wave power generation device, so that the photovoltaic panel in the solar power generation device is driven to avoid danger according to the output power of the wave power generation device, based on the scheme, the wind wave resistance action according to real-time wave fluctuation can be realized through the relay and the self-holding electromagnetic induction switch 9, no additional sensor or remote control means is needed, and the solar photovoltaic panel has more reliable risk resistance capability in severe weather or remote areas.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The solar energy-wave energy combined power generation system is characterized by comprising a solar power generation device, a wave energy power generation device and a driving device;
the solar power generation device comprises a vertical rod and a plurality of bracket groups;
the support group is arranged around the vertical rod and comprises a first support and a second support, one side of the first support is rotatably connected with the upper part of the vertical rod, the other side of the first support is rotatably connected with the first side of the second support through a rotating pin, and a wave-preventing plate is arranged on the second side of the second support; the first support and the second support are used for fixing the photovoltaic panel, and the wave-preventing plate protrudes out of the surfaces of the second support and the photovoltaic panel;
the wave energy power generation device is electrically connected with the driving device;
the driving device is connected with the rotating pin and is used for controlling the movement of the rotating pin according to the output power change of the wave energy power generation device.
2. The solar-wave energy combined power generation system according to claim 1, wherein the wave energy power generation device comprises a turbine generator set and a wave energy collection device, an air chamber space is arranged on the wave energy collection device, the air chamber space is a space with a through hole at the bottom, and the cross section area of the air chamber space is gradually reduced upwards from a preset area;
the turbine generator set is arranged on the upper portion of the vertical rod, and the top of the air chamber space is communicated with the turbine generator set through a pipeline.
3. A solar-wave energy cogeneration system according to claim 2, wherein said turbine generator set is positioned higher than the top of said plenum space, and wherein the pipes at the top of said plenum space are connected obliquely upward to the turbine generator set.
4. The solar-wave energy combined power generation system according to claim 3, wherein the driving device comprises a motor, a lifting ring, a pulley and a steel cable, the lifting ring is sleeved on the upright rod, and the lifting ring is fixedly connected with the steel cable;
the steel cable is movably connected with the motor output end and the pulley and is used for moving between the motor output end and the pulley under the drive of the motor;
the lifting ring is connected with the rotating pin.
5. The solar-wave energy cogeneration system of claim 4, wherein said drive means further comprises drive circuitry for: when the power generation power of the turbine generator set is larger than a preset value, the driving motor drives the lifting ring to descend; when the power generation power of the turbine generator set is larger than a preset value, the driving motor drives the lifting ring to lift.
6. The solar-wave energy cogeneration system of claim 5, wherein the drive circuit comprises a first path, a second path, a self-sustaining electromagnetic switch, wherein the first path comprises a first battery pack and an under-voltage relay, the second path comprises a second battery pack and an over-voltage relay, the under-voltage relay is connected in parallel with a control end of the over-voltage relay and a turbo generator set;
one end of the first passage and one end of the second passage are connected with one pole of a positive pole or a negative pole of the motor, and the other end of the first passage and the second passage are provided with contacts;
the other pole of the motor is connected with a self-holding electromagnetic switch which is arranged in the movable area of the steel cable on the upright rod, and a switch triggering device is arranged on the steel cable.
7. The solar-wave energy cogeneration system of claim 6, wherein said switch-triggering device is disposed on a lifting loop.
8. The solar-wave energy cogeneration system of claim 1, wherein said wave energy generating means comprises a plurality of sets of wave energy collecting means, said wave energy collecting means being disposed between adjacent sets of brackets.
9. The solar-wave energy combined power generation system according to claim 1, wherein the solar power generation device and the wave power generation device are electrically connected with a land power station, the wave power generation device is electrically connected with a storage battery in the upright rod through a rectifier, and the anode and the cathode of the storage battery are respectively connected with the anode and the cathode of the driving device.
10. A method for resisting wind and waves of a solar-wave energy combined power generation system, which is characterized in that the system comprises a solar power generation device, a wave power generation device and a driving device, and the method comprises the following steps: the driving device is electrically connected with the wave energy power generation device, and when the output power of the wave energy power generation device exceeds a threshold value, the driving device drives the solar power generation device to fold the photovoltaic panel for avoiding danger and keeps a folded state; and when the output power of the wave energy power generation device does not exceed a threshold value, the driving device releases the photovoltaic panel of the solar power generation device.
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