Offshore floating type wind and light same-field shared mooring wave-proof system

Abstract

The invention discloses an offshore floating type wind and light same-field shared mooring wave prevention system. The system comprises a floating type photovoltaic array, a floating type draught fan, a shared mooring system and a floating type breakwater. The floating fans are arranged at four corners, a floating breakwater is arranged between every two adjacent floating fans, and the floating breakwater and the floating fans are connected and integrally enclosed to form a rectangular floating frame; a plurality of floating photovoltaic arrays are arranged on the inner side of the floating breakwater, and a plurality of shared mooring systems are arranged on the outer side of the floating breakwater. The floating type draught fans are connected with one another through the floating type breakwater, the exterior of the floating type breakwater is connected with the shared anchoring foundation through the multiple shared mooring cables, the connecting cable grid is arranged in the floating type breakwater, the floating type photovoltaic array is fixed, and the overall safety is improved; besides the fan anchoring foundation, the shared anchoring foundation is additionally arranged, so that better anchoring force is provided for the floating breakwater, and excessive displacement of the photovoltaic array is also reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic and wind power generation, and in particular relates to an offshore floating wind-solar co-site shared mooring and wave-breaking system. Background Art

[0002] With the rapid development of the new energy industry, the land available for wind power and photovoltaic construction is becoming increasingly scarce, and wind and solar technology is gradually developing offshore. Offshore wind energy resources are abundant, especially in deep sea areas, where wind speeds are higher and more stable, and can provide a continuous supply of electricity; offshore oceans have huge potential for installing offshore photovoltaics, and floating wind power and photovoltaics are important ways for renewable energy to move to deep seas.

[0003] Existing floating wind power and photovoltaic power generation are subject to harsh conditions such as waves, strong winds and corrosion. The development technology is difficult and the cost is high. Among them, the mooring system, as an important structure for fixing the floating structure to move within a certain range in the ocean, accounts for about 30% of the investment cost. The prior art has conducted some research on shared mooring. The Chinese invention patent with patent publication number CN 110615074A discloses an offshore wind power platform group with a shared mooring point. The offshore wind power platform group is a rectangular array structure, and adjacent floating wind turbines share the same anchor point. The Chinese invention patent with patent publication number CN 118270174 A discloses a large triangle shared mooring system for a floating wind farm. The positions of three floating wind turbines are arranged in an equilateral triangle, and the three floating wind turbines are connected by a shared cable. The floating wind turbines of the basic unit at the periphery of the array are connected to the corresponding pile anchors through anchor cables. The Chinese invention patent with patent publication number CN 118722957A discloses a floating wind-solar complementary tensioned shared mooring line monitoring system and method. The mooring lines are connected horizontally and vertically to form a shared mooring line network. The peripheral endpoints of the network are respectively connected to the floating wind turbine platforms, and floating photovoltaics are fixed in the grid. One end of the anchor line is connected to the corresponding connected floating wind turbine platform, and the other end is anchored and fixed. These solutions are mainly based on wind farms, using shared anchoring or shared mooring line technology. When floating photovoltaic and wind power are developed on the same site, the photovoltaic array area is large, and violent movement or even collision occurs under the action of waves; shared anchoring has limited cost reduction for mooring systems, and too many floating bodies on shared mooring lines will cause large displacement of floating bodies, resulting in the risk of cable breakage and violent movement. A suitable floating wind and solar co-site mooring system is an important technology for the future development and utilization of offshore new energy. Summary of the invention

[0004] The present invention is proposed to solve the above-mentioned shortcomings, and its purpose is to provide an offshore floating wind-solar shared mooring and wave-breaking system, in which the floating wind turbines of the system are connected to each other through a floating breakwater, the outside of the floating breakwater is connected to a shared anchoring foundation through multiple shared mooring cables, and a connecting cable grid is arranged inside the floating breakwater to fix the floating photovoltaic array; the floating breakwater reduces the wave load acting on the internal photovoltaic float and improves the overall safety; in addition to the wind turbine anchoring foundation, a shared anchoring foundation is arranged to provide better anchoring force for the floating breakwater and reduce excessive displacement of the photovoltaic array.

[0005] In order to achieve the above purpose, the present invention adopts the following scheme:

[0006] An offshore floating wind-solar co-site shared mooring and wave-breaking system, comprising a floating photovoltaic array, a floating wind turbine, a shared mooring system and a floating breakwater;

[0007] The floating wind turbines are arranged at four corners, and a floating breakwater is provided between two adjacent floating wind turbines. The floating breakwater is connected to the floating wind turbines to form a rectangular floating frame.

[0008] A plurality of floating photovoltaic arrays are arranged on the inner side of the floating breakwater, and a plurality of shared mooring systems are arranged on the outer side of the floating breakwater; the floating photovoltaic arrays, the floating wind turbines and the floating breakwater are flexibly connected.

[0009] As a preferred embodiment, a plurality of connecting cables arranged vertically and horizontally are provided on the inner side of the rectangular floating frame to form a cable grid, and the floating photovoltaic array is fixedly connected to the connecting cables.

[0010] As a preferred embodiment, the floating photovoltaic array includes a plurality of floating photovoltaic units and floating unit connectors, and the floating photovoltaic units are connected to each other via the floating unit connectors.

[0011] As a preferred embodiment, the floating photovoltaic unit includes a plurality of floating photovoltaic pontoons and floating photovoltaic trusses, and the floating photovoltaic pontoons are connected by floating photovoltaic trusses.

[0012] As a preferred embodiment, the floating photovoltaic unit and the connecting cable are fixed in a hinged manner.

[0013] As a preferred embodiment, the floating unit connector is hingedly installed on the outside of the floating photovoltaic buoy.

[0014] As a preferred embodiment, the floating wind turbine includes a floating wind turbine buoy and several wind turbine anchoring foundations, the floating wind turbine buoy is connected to the floating breakwater through cables, and several wind turbine anchoring foundations are connected to the floating wind turbine buoy through cables, and the several wind turbine anchoring foundations are symmetrically arranged on the outside of the floating breakwater.

[0015] As a preferred embodiment, the shared mooring system adopts catenary mooring or tension mooring.

[0016] As a preferred embodiment, the shared mooring system includes a shared anchoring foundation and a shared mooring cable, and each of the shared anchoring foundations is provided with a plurality of divergent shared mooring cables, and the divergent ends of the plurality of shared mooring cables are respectively connected to the floating breakwater.

[0017] As a preferred embodiment, an operation and maintenance channel is left between two adjacent floating photovoltaic arrays.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] First, the floating wind turbines of the offshore floating wind-solar co-site shared mooring and wave-breaking system of the present invention are connected to each other through a floating breakwater, which saves the anchoring foundation of the wind turbines. The floating breakwater can not only reduce the external waves acting on the internal floating photovoltaic array, but also provide a certain mooring restoring force for the floating photovoltaic by its own gravity, thereby improving the mooring stability of the floating wind turbines.

[0020] Secondly, the present invention adopts the floating breakwater to enclose, and constructs a connecting cable grid inside to form a whole, so as to realize the sharing of the floating breakwater's own mooring system, and the floating photovoltaic array is anchored on the connecting cables, thereby reducing the number of floating photovoltaic anchors and reducing the overall cost;

[0021] Thirdly, a shared anchor foundation is additionally installed on the outside of the floating breakwater of the present invention, and a plurality of radial shared mooring cables are connected to the floating breakwater, so as to reduce the excessive load on the floating wind turbine caused by the rotation of the floating breakwater, and at the same time avoid collision damage to the floating photovoltaic array caused by the reduction of the distance between the floating breakwaters under the action of waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an offshore floating wind and solar co-site shared mooring and wave-breaking system;

[0023] Figure 2 It is a schematic diagram of the shared mooring system;

[0024] Figure 3 This is a schematic diagram of the floating wind and solar field;

[0025] Figure 4is a schematic diagram of a floating photovoltaic array;

[0026] Figure 5 A schematic diagram of the structure for connecting floating photovoltaic units;

[0027] Figure 6 It is a schematic diagram of the structure of a floating photovoltaic unit;

[0028] In the figure, there are a floating photovoltaic array 1, a floating photovoltaic unit 11, a floating photovoltaic buoy 111, a floating photovoltaic truss 112, a floating unit connector 12, a floating wind turbine 2, a floating wind turbine buoy 21, a wind turbine anchor foundation 22, a shared mooring system 3, a shared anchor foundation 31, a shared mooring cable 32, a floating breakwater 4, a rectangular floating frame 5, a connecting cable 6, and an operation and maintenance channel 7. DETAILED DESCRIPTION

[0029] The specific implementation scheme of the offshore floating wind-solar co-site shared mooring and wave-breaking system according to the present invention is described in detail below with reference to the accompanying drawings.

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the preferred implementation scheme of the present invention is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for exemplary description and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only for exemplary description and cannot be understood as a limitation on this patent.

[0031] like Figure 1 and Figure 2 As shown, an offshore floating wind-solar co-site shared mooring and wave-breaking system of the present invention comprises a floating photovoltaic array 1, a floating wind turbine 2, a shared mooring system 3 and a floating breakwater 4; the floating wind turbines 2 are arranged at four corners, and a floating breakwater 4 is arranged between two adjacent floating wind turbines 2, and the floating breakwater 4 is connected with the floating wind turbine 2 to form a rectangular floating frame 5. Several floating photovoltaic arrays 1 are arranged on the inner side of the floating breakwater 4, and several shared mooring systems 3 are arranged on the outer side of the floating breakwater 4; the floating photovoltaic array 1, the floating wind turbine 2 and the floating breakwater 4 are flexibly connected, and the floating structure can produce relative movement and angle with the waves under the action of waves, reducing the complexity of the connection nodes. An operation and maintenance channel 7 is left between two adjacent floating photovoltaic arrays 1, and the operation and maintenance channel is used for navigation and avoiding collision of floating photovoltaic arrays.

[0032] The floating wind turbine 2 includes a floating wind turbine buoy 21 and a plurality of wind turbine anchoring foundations 22. The floating wind turbine buoy 21 is connected to the floating breakwater 4 via cables. The plurality of wind turbine anchoring foundations 22 are connected to the floating wind turbine buoy 21 via cables. The plurality of wind turbine anchoring foundations 22 are symmetrically arranged on the outside of the floating breakwater 4.

[0033] The shared mooring system 3 adopts catenary mooring or tension mooring. The shared mooring system 3 includes a shared anchoring foundation 31 and a shared mooring cable 32. Each shared anchoring foundation 31 is provided with a plurality of divergent shared mooring cables 32, and the divergent ends of the plurality of shared mooring cables 32 are respectively connected to the floating breakwater 4. Under the action of wind and waves, in addition to the wind turbine anchoring foundation 22 providing anchoring force for the floating breakwater 4, the shared anchoring foundation 31 can also provide sufficient anti-rotation and anti-deviation anchoring force.

[0034] like Figure 3 As shown, a plurality of connecting cables 6 arranged vertically and horizontally are provided on the inner side of the rectangular floating frame 5 to form a cable grid. The connecting cables 6 are used to fix the floating photovoltaic array. The floating photovoltaic array 1 is fixedly connected to the connecting cables 6 .

[0035] like Figure 4 and Figure 5 As shown, the floating photovoltaic array 1 includes a plurality of floating photovoltaic units 11 and floating unit connectors 12 , and the floating photovoltaic units 11 are connected to each other via the floating unit connectors 12 .

[0036] like Figure 6 As shown, the floating photovoltaic unit 11 includes a plurality of floating photovoltaic pontoons 111 and a floating photovoltaic truss 112. The floating photovoltaic pontoons 111 are connected by the floating photovoltaic truss 112. The floating photovoltaic array 1 is formed by splicing a plurality of floating photovoltaic units 11 through a floating unit connector 12. The floating photovoltaic unit supports a photovoltaic module with a capacity of about 500kW. The floating photovoltaic unit 11 is fixed to the connecting cable 6 in an articulated manner. The floating unit connector 12 is installed on the outside of the floating photovoltaic pontoon 111 in an articulated manner to achieve relative movement between the floating photovoltaic units 11.

[0037] The present invention proposes an offshore floating wind-solar co-site shared mooring and wave-breaking system. Compared with the prior art, the present invention reduces the number of wind turbine anchoring foundations 22 by adding floating breakwaters 4 between floating wind turbines 2, reduces the wave load of external waves on the internal floating photovoltaic array 1, and improves photovoltaic safety; a shared mooring system 3 is arranged outside the floating breakwater 4, and the interior is connected vertically and horizontally by connecting cables 6, and anchoring force is provided by a shared anchoring foundation 31, thereby reducing the number of floating photovoltaic anchors; the shared anchoring foundation 31 adopts a plurality of radial shared mooring cables 32 to be connected to the floating breakwater 4, thereby reducing the excessive load on the floating wind turbine 2 caused by the rotation of the floating breakwater 4, and avoiding collision damage to the floating photovoltaic array 1 caused by the reduction of the mutual distance between the floating breakwaters 4 under the action of waves.

[0038] The above embodiments are merely examples of the technical solutions of the present invention. The present invention is not limited to the contents described in the above embodiments, but is subject to the scope defined by the claims. Any modification, supplement or equivalent replacement made by a person skilled in the art based on the embodiment is within the scope of protection required by the claims of the present invention.

Claims

1. An offshore floating wind and solar shared mooring and wave-breaking system, characterized by: It includes a floating photovoltaic array (1), a floating wind turbine (2), a shared mooring system (3) and a floating breakwater (4); The floating wind turbines (2) are arranged at four corners, a floating breakwater (4) is provided between two adjacent floating wind turbines (2), and the floating breakwater (4) is connected to the floating wind turbines (2) to form a rectangular floating frame (5); A plurality of floating photovoltaic arrays (1) are arranged on the inner side of the floating breakwater (4), and a plurality of shared mooring systems (3) are arranged on the outer side of the floating breakwater (4); the floating photovoltaic arrays (1), the floating wind turbines (2) and the floating breakwater (4) are flexibly connected.

2. The offshore floating wind-solar co-location shared mooring and wave-breaking system according to claim 1 is characterized by: A plurality of connecting cables (6) arranged vertically and horizontally are provided on the inner side of the rectangular floating frame (5) to form a cable grid, and the floating photovoltaic array (1) is fixedly connected to the connecting cables (6).

3. The offshore floating wind-solar co-location shared mooring and wave-breaking system according to claim 1 is characterized by: The floating photovoltaic array (1) comprises a plurality of floating photovoltaic units (11) and floating unit connectors (12), and the floating photovoltaic units (11) are connected to each other via the floating unit connectors (12).

4. The offshore floating wind-solar co-location mooring and wave-breaking system according to claim 3 is characterized by: The floating photovoltaic unit (11) comprises a plurality of floating photovoltaic buoys (111) and a floating photovoltaic truss (112), and the floating photovoltaic buoys (111) are connected via the floating photovoltaic truss (112).

5. The offshore floating wind-solar co-location shared mooring and wave-breaking system according to claim 4 is characterized by: The floating photovoltaic unit (11) and the connecting cable (6) are fixed in an articulated manner.

6. The offshore floating wind-solar co-location shared mooring and wave-breaking system according to claim 5 is characterized by: The floating unit connector (12) is hingedly mounted on the outside of the floating photovoltaic buoy (111).

7. The offshore floating wind-solar co-location shared mooring and wave-breaking system according to any one of claims 1 to 6, characterized in that: The floating wind turbine (2) comprises a floating wind turbine buoy (21) and a plurality of wind turbine anchor foundations (22); the floating wind turbine buoy (21) is connected to a floating breakwater (4) via cables; the plurality of wind turbine anchor foundations (22) are connected to the floating wind turbine buoy (21) via cables; the plurality of wind turbine anchor foundations (22) are symmetrically arranged on the outside of the floating breakwater (4).

8. The offshore floating wind-solar co-location shared mooring and wave-breaking system according to any one of claims 1 to 6, characterized in that: The shared mooring system (3) adopts catenary mooring or tension mooring.

9. The offshore floating wind-solar co-location shared mooring and wave-breaking system according to any one of claims 1 to 6, characterized in that: The shared mooring system (3) comprises a shared anchoring foundation (31) and a shared mooring cable (32), and each of the shared anchoring foundations (31) is provided with a plurality of divergent shared mooring cables (32), and the divergent ends of the plurality of shared mooring cables (32) are respectively connected to the floating breakwater (4).

10. The offshore floating wind-solar co-location shared mooring and wave-breaking system according to any one of claims 1 to 6, characterized in that: An operation and maintenance channel (7) is left between two adjacent floating photovoltaic arrays (1).

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