JP3238760U - Energy storage system for offshore wind power generation - Google Patents

Abstract

The present invention provides an energy storage system for offshore wind power generation that overcomes the shortcomings in the prior art of high construction costs for mooring anchor chain systems. An energy storage system for offshore wind power generation is floating on the sea surface, and includes a wind power generator mechanism (1) connected to a first anchor pile (2) fixed to the seabed via a first anchor chain (21). , floating on the sea surface, fixed to the first anchor pile via the second anchor chain 22 and connected to the wave power plant and/or the photovoltaic power plant and the wave power plant and/or the photovoltaic plant. an integrated platform 3 on which a battery energy storage mechanism is provided. [Selection drawing] Fig. 2

Description

This utility model relates to the technical field of new energy power generation, specifically to an energy storage system for offshore wind power generation.

Offshore wind power generation integrates a hydrogen production system or an electrochemical energy storage system, and equips the platform with a multi-energy complementary device so that green hydrogen generated by electricity can be transported by ships, undersea piping, etc., or offshore. We will promote the development of offshore wind power generation in the deep sea and far seas by replacing batteries and directly adding hydrogen to the power equipment of ships.

At present, in the construction of offshore wind power generation, there is a serious "waste of wind power and electricity" phenomenon, wind resources cannot be used effectively, offshore construction vessels need to consume a large amount of power fuel every day, and the cost is huge. Although the prior art has various forms of multi-energy complementary power generation equipment, there is no energy storage system for centralized offshore wind power generation, and as a result, it cannot solve the problem of power waste in wind farms, and floating Both wind turbines and floating integrated platforms need to be fixed by mooring anchor chain systems, which are expensive to build separately.

Therefore, the technical problem to be solved by this utility model is to overcome the drawback of the prior art that the construction cost of the mooring anchor chain system is high, and to provide an energy storage system for offshore wind power generation.

In order to solve the above technical problems, this utility model is
a wind power generator mechanism floating on the sea surface and connected to a first anchor pile fixed to the seabed via a first anchor chain;
Floating on the sea surface, fixed to the first anchor pile via a second anchor chain, and connected to the wave power generation device and/or the solar power generation device and the wave power generation device and/or the solar power generation device an integrated platform on which a battery energy storage mechanism is provided; and an offshore wind energy storage system.

Optionally, said wind generator arrangement comprises a plurality of first wind generators, said first wind generators being provided on one side of said integrated platform, said plurality of first wind generators being spaced apart. is provided empty,
one said first anchor pile is correspondingly connected to said integrated platform and one said first wind power generator; or
One said first anchor pile is correspondingly connected to said integrated platform and two adjacent said first wind power generators.

Optionally, said wind power generator arrangement further comprises a plurality of second wind power generators, said second wind power generators being provided on a side of said integrated platform remote from said first wind power generator; 2 wind generators are provided at intervals,
one said first anchor pile is correspondingly connected to said integrated platform and one said second wind power generator; or
One said first anchor pile is correspondingly connected to said integrated platform and two adjacent said second wind power generators.

Optionally, a first panel is provided above said integrated platform, said photovoltaic power plant comprises a plurality of solar panels provided on said first panel, and said battery energy storage mechanism is connected to said first panel and said solar panel. and an integrated platform, wherein the battery energy storage mechanism is connected to the wind generator mechanism and the solar panel.

Optionally, said integrated platform is further provided with a plurality of sets of hydrogen production equipment, said hydrogen production equipment comprising:
an electrolyzed water hydrogen production mechanism connected to the battery energy storage mechanism;
a hydrogen storage mechanism provided at the bottom of the electrolyzed water hydrogen production mechanism and suitable for storing the hydrogen gas produced by the electrolyzed water hydrogen production mechanism.

Optionally, said electrolyzed water hydrogen production mechanism is provided between said first panel and said integrated platform.

Optionally, the integrated platform includes a grid-like support frame composed of a plurality of links, a standing column provided on the support frame, a second panel provided above the support frame, and a support frame. a float module fixedly installed below, wherein the vertical column penetrates the second panel and is connected to the first panel, and the battery energy storage mechanism and the electrolyzed water hydrogen production mechanism are both connected to the second panel and the float module comprises a plurality of first floats that constitute the hydrogen storage mechanism.

Optionally, a heave plate is fixedly connected to the bottom of said first float.

Optionally, both sides of said grid support frame are each connected to said wave power plant.

Optionally, said float module further comprises a plurality of second floats, said second floats being fixedly connected to said first anchor posts via said second anchor chains.

Optionally, said offshore wind energy storage further comprises a second anchor pile, said second anchor pile fixed to the seabed, said second anchor pile and said first wind generator or said second wind power generator. The generator is fixedly connected via a third anchor chain.

The technical solution of this utility model has the following advantages.
1. In the energy storage system for offshore wind power generation according to this utility model, the wind power generator mechanism and the first anchor pile are fixed, and when the integrated platform is constructed, the integrated platform and the first anchor pile are connected by the second anchor chain. By being directly anchored, it avoids the conventional technology problem of high construction cost due to the single construction of the mooring system on the integrated platform, and also reduces the construction process and improves the construction efficiency and energy storage system of the whole wind farm. improve the economy of
2. In the energy storage system for offshore wind power generation according to this utility model, a wave power generation device and a solar power generation device are installed at the same time on an integrated platform, so that multiple energies can be concentratedly developed and used on a single platform. By installing a hydrogen production device on the integrated platform, it is possible to store the clean power generated by the operation of the wind power generator mechanism by hydrogen production before the offshore wind farm is connected to the grid. It can also supply hydrogen fuel power to nearby construction vessels, thus reducing the power fuel consumption of offshore construction vessels and reducing the carbon emissions of the vessels.
3. In the energy storage system for offshore wind power generation according to this utility model, a battery energy storage mechanism is attached to the integrated platform, and the clean power generated by the operation of the wind power generator is stored in the battery before the offshore wind farm is connected to the grid. It can be stored by energy storage method, and can also provide battery replacement service to nearby construction ships, and the problem of power consumption and storage in the trough of power consumption after the offshore wind farm system connection is completed. can be solved, and the surplus power can be stored in a new form to provide a power source for other power equipment.

In order to describe the specific embodiments of the present utility model or the technical solutions in the prior art more clearly, the drawings used for describing the specific embodiments or the prior art will be briefly described below. Obviously, the drawings described below are some embodiments of the present utility model, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

1 is a structural schematic diagram of an energy storage system according to the present utility model; FIG. 2 is a top view of the energy storage system shown in FIG. 1; FIG. 2 is a partial structural schematic diagram of the energy storage system shown in FIG. 1; FIG. 1 is a first structural schematic diagram of an integrated platform; FIG. 1 is an exploded view of an integrated platform; FIG. 1 is a structural schematic diagram of a solar panel; FIG. 1 is a partial structural schematic diagram of an integrated platform; FIG. FIG. 4 is a second structural schematic diagram of the integrated platform;

The following is a clear and complete description of the technical solutions of the present utility model with reference to the drawings. is not. All other embodiments obtained by those skilled in the art based on the embodiments in this utility model without creative labor are within the patent scope of this utility model.

In addition, in the explanation of this utility model, the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside", etc. Or the positional relationship is based on the orientation or positional relationship shown, and is used only to facilitate and simplify the explanation of the utility model, and such devices or components necessarily have a specific orientation. or to be configured or operated in any particular orientation and should not be understood as limiting the utility model. Also, it should be understood that the terms "first," "second," and "third" are used for descriptive purposes only and do not indicate or imply relative importance.

In addition, in the description of the utility model in the present application, the terms "attachment", "connection", and "connection" should be understood in a broad sense, unless otherwise clearly defined or restricted. It may be a possible connection, or an integral connection, which may be a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or an internal communication between the two elements. . A person skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific situation.

Also, the technical features of the various embodiments of the utility model described below can be combined with each other unless they are inconsistent.

This embodiment provides an energy storage system for offshore wind power generation.

In one embodiment, an offshore wind energy storage system comprises a wind generator set 1 and an integrated platform 3, as shown in FIGS. The wind power generator mechanism 1 is floating on the sea surface, the wind power generator mechanism 1 is connected to the first anchor pile 2 through the first anchor chain 21, the first anchor pile 2 is fixed to the seabed, and is an integrated platform. 3 is floating on the sea surface, fixed to the first anchor pile 2 via the second anchor chain 22, and the integrated platform 3 is equipped with the wave power generation device 4 and/or the solar power generation device, and the wave power generation device 4 and /or A battery energy storage arrangement 5 is provided that is connected to the photovoltaic power plant. In this embodiment, the wind power generator mechanism 1 is fixed to the first anchor pile 2, and the integrated platform 3 and the first anchor pile 2 are directly fixed via the second anchor chain 22 when constructing the integrated platform 3. This avoids the prior art problem of high construction costs due to the independent construction of the mooring system for the integrated platform 3, while reducing the construction steps, increasing the construction efficiency and energy storage system of the entire wind farm. In addition, by installing the wave power generation device 4 and the photovoltaic power generation device on the integrated platform 3, it is possible to develop and use multiple energies intensively on one platform, and further , By installing a battery energy storage mechanism on the integrated platform 3, the clean power generated by the operation of the wind power generator before the offshore wind farm is connected to the grid can be stored by the battery energy storage method, It can provide battery replacement services for construction ships, solve the problem of power consumption and storage in the trough of power consumption after the offshore wind farm is connected to the grid, and store surplus power in a new way. and can supply power to other power equipment.

Based on the above embodiments, in a preferred embodiment, the wind generator arrangement 1 comprises a plurality of first wind generators 11, the first wind generators 11 are provided on one side of the integrated platform 3, and a plurality of second 1 wind power generators 11 are provided at intervals.

Based on the above embodiments, one first anchor pile 2 is correspondingly connected to the integrated platform 3 and one first wind power generator 11 in a preferred embodiment. In one alternative embodiment, one first anchor pile 2 is correspondingly connected to the integrated platform 3 and two adjacent first wind power generators 11 .

Based on the above embodiments, in a preferred embodiment the wind generator arrangement 1 further comprises a plurality of second wind generators 12, the second wind generators 12 being on the side of the integrated platform 3 remote from the first wind generators 11 , and the plurality of second wind power generators 12 are provided at intervals. In this embodiment, an integrated platform 3 is provided between the first wind power generator 11 and the second wind power generator 12, so that the integrated platform 3 may be fixed to more first anchor piles 2, The battery energy storage mechanism 5 may be connected to both the first wind power generator 11 and the second wind power generator 12 , thereby storing more energy and improving the energy storage of the whole integrated platform 3 .

Based on the above embodiments, one first anchor pile 2 is correspondingly connected to one integrated platform 3 and one second wind power generator 12 in a preferred embodiment. In one alternative embodiment, one first anchor pile 2 is correspondingly connected to the integrated platform 3 and two adjacent second wind power generators 12 .

Based on the above embodiments, in a preferred embodiment, the offshore wind energy storage system further comprises a second anchor pile 9, the second anchor pile 9 is fixed to the sea bed, the second anchor pile 9 is connected to the third anchor. It is fixedly connected to the first wind generator 11 or the second wind generator 12 via a chain 91 .

Based on the above embodiments, in one preferred embodiment the diameter of the first anchor pile 2 is larger than the diameter of the second anchor pile 9 . In this embodiment, since the first anchor pile 2 needs to be connected to a plurality of first wind power generators 11 or second wind power generators 12, the load bearing capacity of the first anchor pile 2 as a whole is more demanding. Therefore, by making the diameter of the first anchor pile 2 larger than the diameter of the second anchor pile 9, the load-bearing capacity of the first anchor pile 2 can be improved, so that the first anchor pile 2 becomes the second anchor pile. It is stably connected to the first anchor pile 2, the second anchor pile 9 or the integrated platform 3.

Based on the above embodiments, in a preferred embodiment, a first panel 31 is provided above the integrated platform 3, and the photovoltaic power generation devices are provided on the first panel 31, as shown in FIGS. A solar panel 6 is provided, a battery energy storage mechanism 5 is provided between the first panel 31 and the integrated platform 3 , the battery energy storage mechanism 5 is connected to the wind generator mechanism 1 and the solar panel 6 . In this embodiment, the first panel 31 is provided with a plurality of solar panels 6, which convert solar energy into electrical energy, and the battery energy storage mechanism 5 stores this portion of electrical energy.

Based on the above embodiments, in a preferred embodiment, the solar panel 6 is connected to the first panel 31 via a bracket 61, and the solar panel 6 is pivoted around the bracket 61, as shown in FIGS. It is possible. In this embodiment, the solar panel 6 can rotate in its entirety according to changes in the intensity of the sunlight, thereby making better use of the solar energy.

Based on the above embodiment, in a preferred embodiment, as shown in FIG. Prepare. The electrolyzed water hydrogen production mechanism 71 is connected to the battery energy storage mechanism 5, the hydrogen storage mechanism is provided at the bottom of the electrolyzed water hydrogen production mechanism 71, and is suitable for storing the hydrogen produced by the electrolyzed water hydrogen production mechanism 71. In this embodiment, the main function of the electrolyzed water hydrogen production mechanism 71 is to purify seawater into freshwater via the seawater desalination mechanism, and then electrolyze the desalinated water in the aqueous solution electrolytic tank to produce hydrogen gas and oxygen. gas is produced, followed by separation of oxygen gas and hydrogen gas, and finally utilizing a plurality of first floats 72 to store liquid hydrogen, which can supply hydrogen fuel power to nearby construction vessels. It can thus reduce the power fuel consumption of offshore construction vessels and reduce the carbon emissions of vessels, and the energy storage system can use wave power, solar, liquid generated by floating offshore wind farm power plants. Hydrogen can be used by transporting it to nearby islands and lands through submarine pipe networks.

Based on the above embodiments, in one preferred embodiment, the electrolyzed hydrogen production mechanism 71 is provided between the first panel 31 and the integrated platform 3 . In this embodiment, the electrolyzed water hydrogen production mechanism 71 is provided between the first panel 31 and the integrated platform 3 to improve the structural integrity of the energy storage system.

Based on the above embodiment, in a preferred embodiment, the integrated platform 3 includes a grid-like support frame 32 composed of a plurality of links, vertical columns 321 provided above the support frame 32, and A second panel 33 is provided, and a float module is fixedly installed below the support frame 32, and the upright column 321 passes through the second panel 33 and is connected to the first panel 31 to provide a battery energy storage mechanism 5 and an electrolytic cell. The water/hydrogen production mechanisms 71 are all located on the second panel 33, and the float module comprises a plurality of first floats 72 that constitute a hydrogen storage mechanism. In this embodiment, the first float 72 functions as a floating body mechanism of the integrated platform 3 and also functions as a hydrogen storage mechanism of the electrolyzed water hydrogen production apparatus 7, and stores hydrogen using the first float 72. This simplifies the structure.

Based on the above embodiments, in a preferred embodiment, the uprights 321 are integrally molded with the support frame 32 .

Based on the above embodiments, in a preferred embodiment, a chassis 34 is provided at the bottom of the first float 72 , and the chassis 34 is fixedly connected to the plurality of first floats 72 . In this embodiment, the first float 72 bears the load transmitted from the support frame 32 and the chassis 34 by its own strength, and a longitudinally inclined support member may be provided if necessary.

Based on the above embodiments, a heave plate 721 is fixedly connected to the bottom of the first float 72 in a preferred embodiment.

Based on the above embodiments, in a preferred embodiment the axis of the heave plate 721 is collinear with the axis of the first float 72 . In this embodiment, the central axis of the heave plate 721 coincides with the central axis of the first float 72, which is advantageous for increasing the longitudinal motion damping of the integrated platform 3 in water. Improve stability.

Based on the above embodiments, in a preferred embodiment, both sides of the grid support frame 32 are connected to the wave power generation device 4 respectively. In this embodiment, the wave power generation device 4 is mounted around the integrated platform 3 and securely connected to the integrated platform 3, one end of the wave power generation device 4 is partly immersed in seawater, and the waves are pumped by the pumping device. The generated energy is converted to air energy, and the gas turbine drives a generator to generate electricity.

Based on the above embodiments, in a preferred embodiment the float module further comprises a plurality of second floats 8 , which are fixedly connected to the first anchor posts 2 via second anchor chains 22 . In this embodiment, the second float 8 and the first float 72 both serve to support the integrated platform 3, and the second float 8 is connected to the first anchor pile 2 to improve the stability of the integrated platform 3. .

The method of installing and constructing the energy storage system for offshore wind power generation according to the present embodiment is as follows.
S1, in a factory near the wharf, an integrated platform 3 comprising a grid-shaped support frame 32 composed of multiple links and vertical columns 321 provided on the support frame 32 is manufactured, and the wave power generation device 4 is mounted on the support frame 32. is provided, followed by laying the second panel 33, then attaching the battery energy storage mechanism and the electrolyzed water hydrogen production mechanism 71, laying the first panel 31 on the vertical pillar 321, attaching the bracket 61, and then attaching the solar panel .
S2, adopt the float method to transport the wind power generator assembly 1, transport the wind power generator assembly 1 to a predetermined position, connect with the anchor pile 2 and the second anchor pile 9, and connect the first wind power generator 11 and the second 2 complete the installation of the wind power generator 12, fix one end of the first anchor chain 21 or the second anchor chain 22 to the first anchor pile 2, and the other end of the first wind power generator 11 or the second wind power generator 12; temporarily fixed to the platform.
S3, the integrated platform 3 is towed to a predetermined location by a plurality of construction ship equipment, the first anchor chain 21 or the second anchor chain 22 temporarily fixed by the hoisting ship is lifted by a crane, and the 2 float 8 to complete the installation of the whole integrated platform 3 .
S4, connect the first wind power generator 11 and the second wind power generator 12 corresponding to the integrated platform 3 to the battery energy storage mechanism and the electrolyzed water hydrogen production mechanism 71 via the submarine cable, and Multiple floating bodies will be installed along the cable to ensure the safety of the submarine cable.
S5, the offshore new energy ship, in the process of construction or offshore cargo transportation, reaches the designated integrated platform 3 for battery replacement, liquid hydrogen addition or ship discharge, and if the amount of hydrogen production is large, liquid hydrogen is deposited on the seabed. of transportation pipelines, connect to nearby islands or land, and build hydrogen stations.

Obviously, the above examples are merely illustrative for purposes of clarity and do not limit the embodiments. Persons skilled in the art can make various other changes or modifications based on the above description. It is not necessary or impossible to cover all embodiments here. Obvious changes or variations derived from this also fall within the scope of utility model registration claims of this utility model.

1, wind generator mechanism 11, first wind generator 12, second wind generator 2, first anchor pile 21, first anchor chain 22, second anchor chain 3, integrated platform 31, first panel 32, support Frame 321, Pillar 33, Second Panel 34, Chassis 4, Wave Power Generation Device 5, Battery Energy Storage Mechanism 6, Solar Panel 61, Bracket 7, Hydrogen Production Device 71, Electrolyzed Water Hydrogen Production Mechanism 72, First Float 721, Heave plate 8, second float 9, second anchor pile 91, third anchor chain

Claims (11)

An energy storage system for offshore wind power generation, comprising:
a wind power generator mechanism (1) floating on the sea surface and connected to a first anchor pile (2) fixed to the seabed via a first anchor chain (21);
Floating on the sea surface and fixed to the first anchor pile (2) via the second anchor chain (22), the wave power generation device (4) and/or the solar power generation device and the wave power generation device (4) and/or an integrated platform (3) provided with a battery energy storage mechanism (5) connected to a photovoltaic power plant. Said wind generator arrangement (1) comprises a plurality of first wind generators (11), said first wind generators (11) are provided on one side of said integrated platform (3), and a plurality of said first wind generators (11). 1 wind generators (11) are provided at intervals,
one said first anchor pile (2) is correspondingly connected to said integrated platform (3) and one said first wind power generator (11); or
Offshore according to claim 1, characterized in that one said first anchor pile (2) is correspondingly connected to said integrated platform (3) and two adjacent said first wind power generators (11). Energy storage system for wind power generation. Said wind generator arrangement (1) further comprises a plurality of second wind generators (12), said second wind generators (12) from said first wind generators (11) of said integrated platform (3). provided on the far side, the plurality of second wind power generators (12) are provided at intervals,
one said first anchor pile (2) is correspondingly connected to said integrated platform (3) and one said second wind power generator (12); or
Offshore according to claim 2, characterized in that one said first anchor pile (2) is correspondingly connected to said integrated platform (3) and two adjacent said second wind power generators (12). Energy storage system for wind power generation. A first panel (31) is provided above said integrated platform (3), said photovoltaic power plant comprises a plurality of solar panels (6) provided on said first panel (31), and said battery energy storage mechanism (5) is provided between said first panel (31) and said integrated platform (3), said battery energy storage mechanism (5) is between said wind generator mechanism (1) and said solar panel (6) The energy storage system for offshore wind power generation according to claim 3, characterized in that it is connected. The integrated platform (3) is further provided with a plurality of sets of hydrogen production equipment (7), the hydrogen production equipment (7) comprising:
an electrolyzed water hydrogen production mechanism (71) connected to the battery energy storage mechanism (5);
A hydrogen storage mechanism provided at the bottom of the electrolyzed water hydrogen production mechanism (71) and suitable for storing hydrogen gas produced by the electrolyzed water hydrogen production mechanism (71). 5. The energy storage system for offshore wind power generation according to 4. The energy storage system for offshore wind power generation according to claim 5, characterized in that said electrolyzed water hydrogen production mechanism (71) is provided between said first panel (31) and said integrated platform (3). The integrated platform (3) comprises a lattice-shaped support frame (32) composed of a plurality of links, vertical columns (321) provided on the support frame (32), and a support frame (32) provided above the support frame (32). and a float module fixed below the support frame (32). 31), the battery energy storage mechanism (5) and the electrolyzed water hydrogen production mechanism (71) are both located on the second panel (33), and the float module comprises a plurality of hydrogen storage mechanisms. 7. The offshore wind energy storage system according to claim 6, characterized in that it comprises a first float (72) of . The energy storage system for offshore wind power generation according to claim 7, characterized in that a heave plate (721) is fixedly connected to the bottom of the first float (72). The energy storage system for offshore wind power generation according to claim 7, characterized in that both sides of the lattice-like support frame (32) are respectively connected to the wave power plant (4). Said float module further comprises a plurality of second floats (8), said second floats (8) being fixedly connected to said first anchor posts (2) via said second anchor chains (22). The energy storage system for offshore wind power generation according to claim 7. Further comprising a second anchor pile (9), said second anchor pile (9) is fixed to the seabed, said second anchor pile (9) and said first wind power generator (11) or said second wind power generator Energy storage system for offshore wind power generation according to claims 3 to 10, characterized in that the machine (12) is fixedly connected via a third anchor chain (91).

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