Anchoring mooring system for a wind farm

Abstract

The utility model discloses a kind of wind farm shared anchor mooring system, including several mooring units, each mooring unit includes first floating platform, second floating platform, anchoring foundation and mooring rope;The second floating platform is arranged on sea surface, the anchoring foundation is installed on seabed and is located below the center position of second floating platform, the first floating platform has several with second floating platform as center radially arranged on sea surface, each first floating platform is connected with the anchoring foundation of this mooring unit and the anchoring foundation of adjacent mooring unit by mooring rope, the first floating platform is connected with second floating platform by mooring rope;Compared with prior art, multiple floating platforms can realize sharing an anchoring foundation, under the condition of ensuring normal operation, the amount of anchoring foundation is reduced as far as possible, so as to reduce the land use amount, the number of anchor and construction cost of entire wind farm.

Description

Technical Field

[0001] This utility model relates to the technical field of offshore floating wind power generation, and in particular to a shared anchor mooring system for wind farms. Background Technology

[0002] Wind power is a form of renewable energy utilization that converts wind energy into electricity. Clean energy has become an important supporting force for energy transition. Offshore wind energy, as one of the important types of wind resources, has advantages such as great development potential and environmental friendliness.

[0003] Fixed foundations are a common type of foundation for offshore wind turbines, mainly including monopiles, jacket foundations, tripods, and gravity-type structures. These foundations are typically deployed in near-shore waters with a depth not exceeding 50 meters, with different structures applicable to different water depths. Due to the relatively shallow environment, the construction process is relatively simple, the structure is stable, and the engineering implementation is relatively easy. However, once constructed, these foundations cannot be moved, and subsequent dismantling is difficult. Furthermore, they have significant limitations regarding water depth, making them unsuitable for applications in deeper waters and areas with better wind resources.

[0004] As offshore wind power site selection gradually extends from nearshore to deep-sea areas, water depth increases accordingly, and the foundation design of wind turbines is evolving from traditional fixed structures to floating structures. Currently, floating wind turbines typically use mooring systems for stability, connecting the platform to anchoring devices on the seabed via cables. Current engineering solutions mostly employ a one-turbine-one-anchor configuration, meaning each turbine is equipped with an independent anchoring device and connected by a single mooring cable. Due to the high cost of the anchoring devices themselves and the complexity of construction, the overall cost remains high. Furthermore, to avoid mutual interference and collisions between adjacent turbines and their cables, a large distance must be maintained between turbines, limiting the number of turbines that can be deployed per unit sea area and restricting space utilization efficiency. Therefore, how to reduce the number of anchoring devices, compress installation costs, and increase the density of deployment in the sea area while ensuring operational safety has become one of the key technical issues in reducing the construction cost of floating offshore wind power. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a shared anchoring system for wind farms, which effectively reduces the number of anchoring foundations and improves the utilization rate of marine areas.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows: a shared mooring system for wind farms, comprising several mooring units, each mooring unit including a first floating platform, a second floating platform, an anchoring foundation, and mooring cables; the second floating platform is arranged on the sea surface, the anchoring foundation is installed on the seabed and located at the center below the second floating platform, several first floating platforms are arranged radially on the sea surface with the second floating platform as the center, each first floating platform is connected to the anchoring foundation of its own mooring unit and the anchoring foundation of adjacent mooring units through mooring cables, and the first floating platform and the second floating platform are connected by mooring cables.

[0007] Furthermore, there are six first floating platforms, which are arranged radially at 60° intervals around the second floating platform, forming a regular hexagonal layout.

[0008] Furthermore, the first floating platform includes a column, and six first floating platforms are provided with peepholes at intervals. The peepholes are located below the column, and the second floating platform is connected to the peepholes of the first floating platform through mooring cables.

[0009] Furthermore, the included angle between adjacent mooring cables located on the first floating platform is 120°.

[0010] Furthermore, the included angle between adjacent mooring cables located on the second floating platform is 120°.

[0011] Furthermore, wind turbine units are installed on the top of both the first and second floating platforms.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] Compared with the prior art, this utility model enables multiple floating platforms to share a single anchoring foundation, minimizing the amount of anchoring foundations needed while ensuring normal operation, thereby reducing the land use, number of anchors, and construction costs of the entire wind farm. Attached Figure Description

[0014] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0015] Figure 2 This is the second structural schematic diagram of the present invention. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments.

[0017] See Figures 1 to 2As shown, the wind farm shared anchor mooring system provided in this embodiment includes several mooring units. Each mooring unit includes a first floating platform 1, a second floating platform 2, an anchoring foundation 3, and a mooring cable 4.

[0018] Both the first floating platform 1 and the second floating platform 2 are equipped with wind turbine units 5 on their tops. The second floating platform 2 is positioned on the sea surface, and the anchoring foundation 3 is installed on the seabed and located at the center below the second floating platform 2. Six first floating platforms 1 are arranged radially on the sea surface with the second floating platform 2 as the center. These six first floating platforms 1 are arranged radially with a 60° interval between them, forming a regular hexagonal layout. The six first floating platforms 1 are provided with peepholes at intervals, that is, three of the first floating platforms 1 have peepholes. Each first floating platform 1 includes three columns 101, and the peepholes are respectively located below two columns 101. The second floating platform 2 is connected to the peepholes of the first floating platform 1 through mooring cables 4, so that the included angle between adjacent mooring cables 4 of the second floating platform 2 is 120°. Each first floating platform 1 is connected to the anchorage foundation 3 of its own mooring unit and the anchorage foundation 3 of the adjacent mooring unit via mooring cables 4, such that the included angle between adjacent mooring cables 4 of the first floating platform 1 is 120°. The length and installation method of the mooring cables 4 connecting the first floating platform 1 and the second floating platform 2 are the same; the length and installation method of the mooring cables 4 connecting the first floating platform 1 and the anchorage foundation 3 are also the same.

[0019] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A shared anchor mooring system for wind farms, characterized in that: It includes several mooring units, each mooring unit comprising a first floating platform, a second floating platform, an anchoring foundation, and mooring cables; the second floating platform is arranged on the sea surface, and the anchoring foundation is installed on the seabed and located at the center below the second floating platform; several first floating platforms are arranged radially on the sea surface with the second floating platform as the center; each first floating platform is connected to the anchoring foundation of its own mooring unit and the anchoring foundation of the adjacent mooring unit by mooring cables; the first floating platforms and the second floating platforms are connected by mooring cables.

2. A shared anchor mooring system for a wind farm according to claim 1, characterized in that: There are six first floating platforms, which are arranged radially at 60° intervals around the second floating platform, forming a regular hexagonal layout.

3. A shared anchor mooring system for a wind farm according to claim 2, characterized in that: The first floating platform includes a column, and six first floating platforms are provided with peepholes at intervals. The peepholes are located below the column, and the second floating platform is connected to the peepholes of the first floating platform by mooring cables.

4. A shared anchor mooring system for a wind farm according to claim 2, characterized in that: The included angle between adjacent mooring cables located on the first floating platform is 120°.

5. A shared anchor mooring system for a wind farm according to claim 3, characterized in that: The included angle between adjacent mooring cables on the second floating platform is 120°.

6. A shared anchor mooring system for a wind farm according to claim 1, characterized in that: Both the first and second floating platforms are equipped with wind turbine generators on their tops.

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