WO2017114499A1

WO2017114499A1 - Power generation system and power generation network

Info

Publication number: WO2017114499A1
Application number: PCT/CN2016/113694
Authority: WO
Inventors: 王中林; 郭恒宇
Original assignee: 北京纳米能源与系统研究所
Priority date: 2015-12-31
Filing date: 2016-12-30
Publication date: 2017-07-06
Also published as: CN106609722A; CN106609722B

Abstract

A power generation system comprises an above-water power generation apparatus (100), an underwater power generation apparatus (200) and a power management circuit. The above-water power generation apparatus (100) comprises a wave power generation unit (50), a solar power generation unit (20) and a wind power generation unit (30). The underwater power generation apparatus (200) comprises an ocean current power generation unit (40). The power management circuit is used to manage electricity output from the above-water power generation apparatus (100) and the underwater power generation apparatus (200). Multiple power generation systems are connected to one another to form a power generation network. The power generation system is applied in the ocean and can realize simultaneous and multiple-aspect collection of ocean energy.

Description

Power generation system and power generation network

Technical field

The present invention relates to the field of nano power generation, and in particular to a power generation system and a power generation network formed by connecting power generation systems.

Background technique

Ocean energy (such as tidal energy, wave energy, ocean current energy, etc.) is a huge source of energy. As a renewable energy source, it has abundant reserves and wide distribution, and has good development prospects and value. However, the use of ocean energy is still in its infancy, and there are major limitations, and it is impossible to achieve all-round simultaneous acquisition of ocean energy.

Summary of the invention

According to an aspect of the present invention, a power generation system is provided, wherein the power generation system includes a water power generation device, an underwater power generation device, and a power management circuit, wherein: the water power generation device includes a wave energy power generation unit; The power generating device includes a ocean current power generating unit; and the power management circuit is configured to manage electrical outputs of the marine power generating device and the underwater power generating device.

Preferably, the hydropower generating device further comprises a solar panel.

Preferably, the solar panel is one of the following: a dye-sensitized solar panel, an organic thin film solar panel, a perovskite solar panel, and a silicon-based solar panel.

Preferably, the hydropower generating device further comprises a wind energy generating unit.

Preferably, the power generation system further includes a hollow floating body unit, the power management circuit is disposed in the hollow floating body unit, the wind energy generating unit is disposed on an upper surface of the hollow floating body unit, and the wave energy generating unit is disposed The ocean current power generating unit is disposed on a lower surface of the hollow floating body unit on an upper surface or a side surface of the hollow floating body unit.

Preferably, the power generation system further includes a connection unit that serially connects the plurality of ocean current power generation units to form a current power generation unit string, and/or the connection unit groups the plurality of the wind power generation unit strings Connected to form a wind power generation unit string; and the ocean current power generation unit is connected to a lower surface of the hollow floating body unit through the connection unit, and the wind power generation unit is connected to an upper surface of the hollow floating body unit through the connection unit .

Preferably, the ocean current energy generating unit and/or the wind power generating unit comprises an active frame, a generator body, a propeller, and a connecting member connecting the generator body and the propeller, wherein the connecting unit is coupled to the movable frame, and the generator body, the propeller, and the connecting member are disposed in the Within the framework of the activity.

Preferably, the connecting unit and the movable frame are movably connected by a plurality of rigid balls.

Preferably, the generator body is a friction electromagnetic composite power generation unit.

Preferably, the generator body comprises a friction nanogenerator, an electromagnetic generator and a first closed cavity, wherein the electromagnetic generator comprises: a first rotating component, and a first magnet unit fixed on the first rotating component a coil unit fixed on the outer wall of the first closed chamber and a second magnet unit disposed in the first closed chamber, the first rotating member being coupled to the outer wall of the first closed cavity through the rotating shaft; the friction nanogenerator is disposed at The inside of the first closed cavity includes a second rotating component and a fixing component which are disposed in contact with each other and are relatively rotatable, the fixing component is fixed on the inner wall of the first sealed cavity, and the second magnet unit is fixedly disposed on the second rotating component; When the first rotating component rotates together with the first magnet unit, the second magnet unit drives the second rotating component to rotate relative to the fixed component under the action of the magnetic force, and generates sliding friction on the surface contacted by the two, and the friction nano-generator generates an electrical signal. At the same time, the first magnet unit and the second magnet unit rotate relative to the coil unit, and the coil unit cuts magnetic lines of force to generate telecommunications Output.

Preferably, the power generating body further comprises an adjusting circuit, wherein the two three-phase transformers are used for: reducing voltage of the friction nano-generator, increasing current, and increasing voltage and current for the electromagnetic generator; and simultaneously matching The output impedance of the friction nano-generator and the electromagnetic generator is used; the two rectifier bridges are used for rectifying the electrical signals output by the friction nano-generator and the electromagnetic generator after being adjusted by the three-phase transformer into a direct current signal.

Preferably, the wave energy generating unit comprises a second closed cavity and an electrode and a movable ball disposed in the second closed cavity, the electrode being formed on a part of the inner surface of the second closed cavity, In the case where the wave energy generating unit is subjected to wave disturbance, the movable ball rolls in the second closed cavity, contacts and separates from the electrode during rolling, and outputs an electrical signal through the electrode.

The present invention also provides a power generation network comprising a plurality of any of the above power generation systems, wherein the plurality of power generation systems are interconnected to form a network.

Through the above technical solution, for example, the above power generation system can be applied to a marine system, The utility model adopts a hydroelectric power generation device including a wave energy power generation unit to collect and generate wave energy on the ocean, and uses an underwater power generation device including a ocean current power generation unit to collect and generate ocean current energy under the ocean, and uses a power management circuit for the purpose The electric power output of the water power generation device and the underwater power generation device is managed. As a result, not only can the energy source on the ocean be collected and generated, but also the energy under the ocean can be collected and generated. That is, multi-directional simultaneous acquisition of ocean energy can be achieved.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be a In the drawing:

1 is a schematic structural view of a power generation system according to an embodiment of the present invention;

2 is a schematic structural view of a ocean current energy generating unit and/or a wind power generating unit according to an embodiment of the present invention;

3 is a schematic view showing the connection of a connecting unit and a movable frame according to an embodiment of the present invention;

4 is a schematic structural view of a generator body according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an adjustment circuit according to an embodiment of the present invention; FIG.

6 is a schematic structural view of a wave energy generating unit according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a power generation network according to an embodiment of the present invention.

detailed description

The present invention will be further described in detail below with reference to the specific embodiments of the invention.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 is a schematic structural view of a power generation system according to an embodiment of the present invention.

As shown in FIG. 1, a power generation system according to an embodiment of the present invention includes a water power generation device 100, an underwater power generation device 200, and a power management circuit, wherein: the water power generation device 100 A wave power generation unit 50 is included; the underwater power generation device 200 includes a ocean current power generation unit 40; and the power management circuit is configured to manage electrical outputs of the water power generation device 100 and the underwater power generation device 200.

By applying the above-described power generation system to a marine system, a wave power generation device including a wave energy power generation unit is used to collect and generate wave energy on the ocean, and an underwater power generation device including a ocean current power generation unit is used to perform ocean current energy under the ocean. Power generation is collected and a power management circuit is utilized for managing the electrical output of the marine power generating device and the underwater power generating device. As a result, not only can the energy source on the ocean be collected and generated, but also the energy under the ocean can be collected and generated. That is, multi-directional simultaneous acquisition of ocean energy is achieved.

Similarly, the power generation system provided by the present invention can also be applied to rivers, rivers, and lakes, which is not limited by the present invention. Accordingly, ocean currents can correspond to water flow energy.

According to an embodiment of the present invention, the hydropower generating device 100 further includes a solar panel 20 . Therefore, the power generation system of the present invention can collect solar energy while collecting ocean energy, thereby realizing diversified collection of energy.

The solar panel 20 may be one of the following: a dye-sensitized solar panel, an organic thin film solar panel, a perovskite solar panel, a silicon-based solar panel, and the like.

According to an embodiment of the present invention, the hydropower generating device 100 further includes a wind energy generating unit 30. Thus, the power generation system of the present invention can collect wind energy and collect solar energy as described above, and realize diversified collection of energy.

Wherein, the power management circuit for managing the electrical output of the hydropower generating device 100 and the underwater power generating device 200 includes: the power management circuit capable of the hydropontoon device 100 and the underwater generator device 200 (ie, ocean current energy) The output of the power generating unit 40, the wave energy generating unit 50, and the solar panel 20) is superimposed (parallel output), or the collected energy is stored in the electrical storage unit. The electrical storage unit can be integrated in the power management circuit or can be set independently of the power management circuit.

According to an embodiment of the present invention, the power generation system further includes a hollow floating body unit 10, the power management circuit is disposed in the hollow floating body unit 10, and the wind energy generating unit 30 is disposed on the hollow floating body unit 10. a surface, the wave energy generating unit 50 is disposed on an upper surface or a side surface of the hollow floating body unit 10, and the ocean current power generating unit 40 is disposed in the middle The lower surface of the floating body unit 10. Further, the solar cell panel 20 is disposed on an upper surface of the hollow floating body unit 10.

By providing the hollow floating body unit 10, the power generation system can be made to float on the water surface.

Further, the wave energy generating unit 50 can also be directly placed on the water surface by connecting the cable to the hollow floating body unit 10.

The hollow floating body unit 10 may be any one of a rectangular parallelepiped, a cube, a sphere, and a polyhedron.

According to an embodiment of the present invention, the power generation system further includes a connection unit 401, and the connection unit 401 serially connects the plurality of the ocean current power generation units 40 and/or the plurality of the wind energy generation units 30 to form ocean current energy generation. a string of cells and/or a wind power generating unit, and the ocean current generating unit 40 is connected to a lower surface of the hollow floating body unit 10 by the connecting unit, and the wind power generating unit 30 is connected to the The upper surface of the hollow floating body unit 10.

Although it is described above that a plurality of the wind power generation unit 30 and the plurality of ocean current power generation units 40 are respectively connected in series by the connection unit 401 to form a wind power generation unit string and a ocean current power generation unit string, and are connected to the upper and lower sides of the hollow floating body unit 10 Surface, but the invention is not limited thereto. For example, the case where the separate ocean current power generating unit 40 and the separate wind power generating unit 30 are directly connected to the upper and lower surfaces of the hollow floating body unit 10 is also applicable to the present invention.

2 is a schematic structural view of a ocean current energy generating unit and/or a wind power generating unit according to an embodiment of the present invention.

As shown in FIG. 2, the ocean current power generating unit 40 and/or the wind power generating unit 30 includes a movable frame 402, a generator body 403, a propeller 404, and a connecting member connecting the generator body 403 and the propeller 404. 405, wherein the connecting unit 401 is connected to the movable frame 402, and the generator body 403, the propeller 404, and the connecting member 405 are disposed in the movable frame 402.

3 is a schematic view showing the connection of a connecting unit and a movable frame according to an embodiment of the present invention.

As shown in FIG. 3, the connecting unit 401 and the movable frame 402 may be movably connected by a plurality of rigid pellets 406. Thereby, the movable frame 402 can be rotated by the connection unit 401 as an axis. Preferably, the connecting unit 401 may be a fixed rod.

Thereby, under the action of water flow or wind in different directions, relative rotation between the movable frame 402 and the fixed rod can occur, so that the propeller 404 is always opposite to the direction of the water flow and the wind, so that To collect water flow and wind energy in multiple directions.

In addition, the connection unit 401 and the movable frame 402 may be connected by using other active connection manners in the prior art, as long as a relative rotational motion between the connection unit 401 and the movable frame 402 is ensured. can.

4 is a schematic structural view of a generator body 403 according to an embodiment of the present invention;

As shown in FIG. 4 , the generator body 403 is a friction electromagnetic composite power generation unit, including a friction nano-generator, an electromagnetic generator, and a first sealed cavity 4023 , wherein the electromagnetic generator includes: a first rotating component 4020 a first magnet unit 4021 fixed to the first rotating member 4020, a coil unit 4022 fixed on the outer wall of the first sealed chamber, and a second magnet unit 4026 disposed in the first sealed chamber. The first rotating member 4020 passes The rotating shaft is coupled to the outer wall of the first closed cavity 4023.

The friction nano-generator is disposed inside the first sealed cavity 4023, and includes a second rotating component 4024 and a fixing component 4025 which are disposed in contact with each other and are relatively rotatable. The fixing component 4025 is fixed on the inner wall of the first sealing cavity 4023, and the second magnet The unit 4026 is fixedly disposed on the second rotating member 4024. When the first rotating member 4020 rotates together with the first magnet unit 4021, the second magnet unit 4026 rotates the second rotating member 4024 relative to the fixed member 4025 under the action of the magnetic force, and generates sliding friction and friction on the surfaces contacting the two. The nanogenerator produces an electrical signal. At the same time, the first magnet unit 4021 and the second magnet unit 4026 rotate relative to the coil unit 4022, and the coil unit 4022 cuts the magnetic lines of force to generate an electrical signal output.

The first magnet unit 4021, the second magnet unit 4026, and the coil unit 4022 of the electromagnetic generator may be provided in plurality, preferably in the same number, as shown in FIG. 4, for example, four or eight may be disposed equidistantly.

The structure of the friction nano-generator is not limited to the above-mentioned structure, and all of the frictional nano-generators of the prior art that have been disclosed can be used, and are not particularly limited in the present invention. A plurality of friction units radially disposed from the center may be disposed on a surface of the second rotating member 4024 in contact with the fixing member 4025, the friction unit being made of an insulating material, and a polymer insulating material may be used; the fixing member 4025 and the Two sets of mutually insulated electrodes are disposed on the surface of the two rotating parts 4024 as the output ends of the friction nano-generators, each set of electrodes includes a plurality of electrode units radially arranged from the center, and the electrode units of the two sets of electrodes are mutually Cross settings. When the second rotating member 4024 is rotated relative to the fixed member 4025, the friction unit is sequentially rented with two The electrode unit in the electrode contacts the friction, and the surface charge carried by the friction unit induces an induced charge in the two sets of electrodes, that is, the output electrical signal of the friction nano-generator

Wherein, the first rotating component 4020 and the first sealing cavity 4023 are movably connected by a rotating shaft, and the rotational movement of the second rotating component 4024 is between the first magnet unit 4021 and the second magnet unit 4026. The attraction force is indirectly driven.

In addition, the shape of the friction nano-generator may also be any one of the following: a disk shape, a tube shape, a square shape, and the like.

FIG. 5 is a schematic diagram of an adjustment circuit of a generator body according to an embodiment of the present invention.

As shown in FIG. 5, the generator body further includes an adjustment circuit including two three-phase transformers 600 and two rectifier bridges 500. The friction nano-generators 300 and the electromagnetic generators 400 are respectively connected through a three-phase transformer. bridge. Wherein, the two three-phase transformers 600 are used for reducing the voltage of the frictional nano-generator 300, increasing the current, and increasing the voltage and current for the electromagnetic generator 400; simultaneously matching the frictional nano-generator 300 and the electromagnetic type The output impedance of the generator 400 achieves a combined power generation of the two. The two rectifier bridges 500 are used to rectify the electrical signals output by the frictional nanogenerator 300 and the electromagnetic generator 400 after being adjusted by the three-phase transformer into a direct current signal. The electrical signals output by the two rectifier bridges 500 can be connected to a power management circuit.

The friction nano-generator 300 operates on the principle of triboelectric and electrostatic induction, and is characterized by a large output voltage. Compared with electromagnetic power generation, its main advantage is that it can collect mechanical motion at very low frequencies, and its output voltage remains unchanged. .

Further, the friction nanogenerator 300 and the electromagnetic generator 400 may be disposed in a fully enclosed cavity to avoid erosion of liquid such as seawater.

By using the frictional nanogenerator 300 in combination with the electromagnetic generator 400, it is possible to have a high power output at a high frequency external mechanical drive while collecting extremely low frequency external mechanical energy.

The wave energy generating unit 50 may be a friction nano generator, and FIG. 6 is a schematic structural view of a wave energy generating unit according to an embodiment of the present invention.

As shown in FIG. 6, the wave energy generating unit 50 includes a second closed cavity 501 and an electrode 503 and a movable ball 502 disposed in the second closed cavity, and the electrode 503 is formed in the second closed cavity. The wave energy generating unit 50 is subjected to wave disturbance on a part of the inner surface of the body In the case where the movable ball 502 rolls in the second closed cavity 501, contacts and separates from the electrode 503 during rolling, and outputs an electrical signal through the electrode 503 (ie, when electrostatically induced) The charge on the electrode 503 moves to output an electrical signal to the outside.

Further, a plurality of the above-described power generation systems of the present invention may be interconnected to form a network, as shown in Fig. 7, which is disposed on the sea surface to form a huge power generation network, thereby collecting ocean energy in a wide range.

In the present invention, the output ends of the power generating units and the solar panels may be connected to the rectifier bridge after being directly connected in parallel, or may be connected in parallel after being connected to the rectifier bridge. Preferably, the parallel connection is made after the rectifier bridge is connected. Moreover, the number of the power generation system itself and the components included therein can be set according to actual conditions, which is not limited by the present invention.

Since the friction nano-generator is applied in the power generation system of the present invention, the friction nano-generator has the advantages of low material cost, light power generation unit quality, high energy conversion efficiency, and the like, so that the power generation system of the present invention can also have a cost. Low, light weight, easy to implement and so on. Moreover, based on the principle of triboelectric and electrostatic induction, the friction nano-generator also has the advantage of having stable output voltage characteristics under extremely low external mechanical drive, and is combined with the electromagnetic generator under high external mechanical drive. A high power output can be obtained, thereby enabling the power generation system of the present invention to also have a high power output.

The above is a preferred embodiment of the present invention. It should be noted that the preferred embodiment is only for understanding the present invention and is not intended to limit the scope of the present invention. Moreover, the features in the preferred embodiment are applicable to both the method embodiment and the device embodiment, unless otherwise specified, and the technical features appearing in the same or different embodiments may not conflict with each other. Used in combination.

It should be noted that the above definitions of the various components are not limited to the specific structures or shapes mentioned in the embodiments, and those skilled in the art can simply and well replace them, and the specific embodiments described above The present invention has been described in detail with reference to the preferred embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the scope of the invention are intended to be included within the scope of the invention.

Claims

A power generation system, characterized in that the power generation system comprises a water power generation device, an underwater power generation device and a power management circuit, wherein:

The hydropower generating device includes a wave energy generating unit;

The underwater power generating device includes a ocean current power generating unit;

The power management circuit is configured to manage electrical outputs of the marine power generating device and the underwater power generating device.
The power generation system according to claim 1, wherein said hydropower generating device further comprises a solar panel.
The power generation system according to claim 2, wherein the solar panel is one of: a dye-sensitized solar panel, an organic thin film solar panel, a perovskite solar panel, and a silicon-based solar cell. board.
The power generation system according to any one of claims 1 to 3, wherein the hydropower generating device further comprises a wind power generating unit.
The power generation system according to claim 4, wherein the power generation system further comprises a hollow floating body unit, the power management circuit is disposed in the hollow floating body unit, and the wind energy generating unit is disposed in the hollow floating body unit The upper surface, the wave energy generating unit is disposed on an upper surface or a side surface of the hollow floating body unit, and the ocean current power generating unit is disposed on a lower surface of the hollow floating body unit.
The power generation system according to claim 5, wherein said power generation system further comprises a connection unit, said connection unit serially connecting said plurality of ocean current power generation units to form a stream of ocean current power generation units, and/or more The wind power generation units are connected in series to form a wind power generation unit string;

And the ocean current power generation unit is connected to a lower surface of the hollow floating body unit through the connection unit, and the wind power generation unit is connected to an upper surface of the hollow floating body unit through the connection unit.
The power generation system according to claim 6, wherein the ocean current power generation unit and/or the wind power generation unit comprises a movable frame, a generator body, a propeller, and a connection connecting the generator body and the propeller And the connecting unit is coupled to the movable frame, and the generator body, the propeller and the connecting member are disposed in the movable frame.
The power generation system according to claim 7, wherein the connecting unit and the movable frame are movably connected by a plurality of rigid balls.
The power generation system according to claim 7 or 8, wherein the generator body is a friction electromagnetic composite power generation unit.
The power generation system according to claim 9, wherein the generator body comprises a friction nanogenerator, an electromagnetic generator, and a first closed cavity, wherein

The electromagnetic generator includes: a first rotating component, a first magnet unit fixed to the first rotating component, a coil unit fixed on an outer wall of the first sealed cavity, and a second magnet unit disposed in the first sealed cavity, The first rotating component is coupled to the outer wall of the first closed cavity by a rotating shaft;

The friction nano-generator is disposed inside the first sealed cavity, and includes a second rotating component and a fixing component which are disposed in contact with each other and are relatively rotatable, the fixing component is fixed on the inner wall of the first sealing cavity, and the second magnet unit is fixedly disposed on the first Two rotating parts;

When the first rotating component rotates together with the first magnet unit, the second magnet unit drives the second rotating component to rotate relative to the fixed component under the action of the magnetic force, and generates sliding friction on the surface contacted by the two, and the friction nano generator generates electricity. At the same time, the first magnet unit and the second magnet unit rotate relative to the coil unit, and the coil unit cuts the magnetic lines of force to generate an electrical signal output.
The power generation system according to claim 10, wherein the power generation body further comprises an adjustment circuit, wherein

Two three-phase transformers are used for: reducing the voltage of the friction nano-generator, increasing the current, and increasing the voltage and current for the electromagnetic generator; and matching the output impedance of the friction nano-generator and the electromagnetic generator ;

The two rectifier bridges are used for rectifying the electrical signals output by the friction nano-generator and the electromagnetic generator after being adjusted by the three-phase transformer into a direct current signal.
The power generation system according to any one of claims 1 to 11, wherein the wave energy generating unit comprises a second closed cavity and an electrode and a movable ball placed in the second closed cavity, An electrode is formed on a portion of the inner surface of the second closed cavity, and the wave energy generating unit rolls in the second closed cavity under the condition of wave disturbance, during the rolling process The electrodes are contacted and separated and an electrical signal is output through the electrodes.
A power generation network characterized by comprising a plurality of claims 1 to 12 The power generation system, a plurality of said power generation systems are interconnected to form a network.