Floating platform and wind generating set

Abstract

The utility model relates to a floating platform and a wind generating set, and the floating platform comprises a floating foundation which comprises a plurality of floating bodies and a supporting platform connected with the floating bodies, and the plurality of floating bodies are arranged around the supporting platform; and the movable counterweight module comprises a supporting rod and a counterweight block arranged on the supporting rod, and the counterweight block can move in the axial direction of the supporting rod relative to the supporting rod. According to the floating platform provided by the embodiment of the invention, the inclination possibility can be reduced, and the stability is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind power generation, and in particular to a floating platform and a wind power generator set. Background Art

[0002] With the development of wind power generation technology, existing wind turbines can be installed not only on land, but also at sea, and further supported by floating platforms, so that wind turbines can be installed in deeper waters. During use, as the water surface continues to fluctuate, the effective swept area of ​​the impeller in the wind turbine also changes, and there is a possibility that the swept area will decrease due to the tilt of the wind turbine. At the same time, the location of offshore wind turbines is usually far from the shore, which is not easy to reach, and it is usually impossible to manually adjust the posture of the wind turbine in time.

[0003] Therefore, there is an urgent need for a floating platform that can automatically correct inclination and has high accuracy and stability, and a corresponding wind turbine generator set. Utility Model Content

[0004] The embodiments of the present application provide a floating platform and a wind turbine generator set, wherein the floating platform can reduce the possibility of tilting and improve stability.

[0005] In the first aspect, according to an embodiment of the present application, a floating platform is proposed, including: a floating foundation, including a plurality of floating bodies and a supporting platform connected to the floating bodies, the plurality of floating bodies are arranged around the supporting platform; a mobile counterweight module, arranged on the floating foundation, the mobile counterweight module including a support rod and a counterweight block arranged on the support rod, the counterweight block being able to move in the axial direction of the support rod relative to the support rod.

[0006] According to one aspect of an embodiment of the present application, the floating foundation also includes a connecting beam, which is connected and arranged between adjacent floating bodies. The connecting beam is a cylindrical structure and has a accommodating cavity extending along its own axial direction. The mobile counterweight module is arranged in the accommodating cavity, and the support rod extends along the axial direction of the connecting beam.

[0007] According to one aspect of an embodiment of the present application, the floating foundation includes three floating bodies spaced apart from each other, adjacent floating bodies are connected by connecting beams, and the lengths of the multiple connecting beams are the same.

[0008] According to one aspect of the embodiments of the present application, n support rods are provided in each connecting beam, and the counterweight blocks are provided in a one-to-one correspondence with the support rods, and 6≤n≤12.

[0009] According to one aspect of the embodiment of the present application, the support rod is a threaded rod, and the counterweight block is sleeved on the support rod and threadedly connected to the support rod.

[0010] According to one aspect of the embodiment of the present application, the mobile counterweight module also includes a motor, which is connected to the support rod and can drive the support rod to rotate in its own circumferential direction.

[0011] According to one aspect of an embodiment of the present application, the mobile counterweight module also includes a slide rail, the orthographic projection of the counterweight block on the plane where the slide rail is located is located within the contour range of the slide rail, and the counterweight block is movably connected to the slide rail.

[0012] According to one aspect of an embodiment of the present application, the floating platform further includes a data acquisition device for acquiring operating parameters and environmental parameters of the floating platform.

[0013] According to one aspect of an embodiment of the present application, the data acquisition device includes at least one of a wind vane, an anemometer, an acceleration sensor, a satellite locator, a level sensor, an angular velocity sensor, and a depth sounder.

[0014] In a second aspect, a wind turbine generator set is proposed according to an embodiment of the present application, comprising: a floating platform in any embodiment of the first aspect; a tower disposed on the supporting platform; and a cabin connected to a side of the tower away from the supporting platform.

[0015] The floating platform provided in the embodiment of the present application includes a floating foundation and a mobile counterweight module arranged on the floating foundation, wherein the mobile counterweight module includes a support rod and a counterweight block. By moving the counterweight block along the support rod, the relative position of the counterweight block and the floating foundation can be conveniently adjusted, thereby correspondingly changing the center of gravity position of the entire floating platform, thereby correcting the inclination of the floating platform, and conveniently and effectively improving the stability of the floating platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0017] Figure 1 is a schematic diagram of the structure of a floating platform provided by an embodiment of the present application;

[0018] Figure 2 is a schematic structural diagram of a floating platform provided in another embodiment of the present application;

[0019] Figure 3 is a structural schematic diagram of a mobile counterweight module provided by an embodiment of the present application;

[0020] Figure 4 is a structural schematic diagram of a tilt correction system provided by an embodiment of the present application;

[0021] Figure 5 is a structural diagram of a control module provided by an embodiment of the present application;

[0022] Figure 6 It is a schematic diagram of the structure of a wind turbine generator set provided in one embodiment of the present application.

[0023] in:

[0024] 100-tilt correction system; 200-floating platform; 300-wind turbine generator set;

[0025] 10-data acquisition equipment; 20-mobile counterweight system; 30-control module; 40-floating foundation; 50-tower; 60-nacelle; 70-impeller;

[0026] 11-levelness sensor; 12-angular velocity sensor; 13-depth sounder; 21-support rod; 22-counterweight; 23-motor; 24-slide rail; 31-power supply module; 32-data processor; 33-controller; 41-floating body; 42-support platform; 43-connecting beam. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0028] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structures in the molding mold and molding method of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the meaning of "multiple" is more than two, and the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] With the development of wind power technology, offshore floating wind turbines have gradually become the mainstream model. When the water depth of the wind turbine is deep, it is usually necessary to use a floating platform to support it, so that the wind turbine can be placed on the sea surface by the buoyancy of the floating platform.

[0031] On this basis, the applicant found that due to the strong wind and waves at sea, the floating platform may tilt with the fluctuation of the sea surface. As the floating platform tilts, the wind turbine installed on it will also tilt, resulting in a decrease in the effective wind sweeping area of ​​the wind turbine, which in turn leads to a decrease in power generation efficiency. In addition, the location of offshore wind turbines is usually far from the shore and difficult to reach, so it is difficult to correct the tilted floating platform in a timely manner through manual adjustment.

[0032] In order to solve the above problems, the embodiments of the present application propose a floating platform and a wind turbine generator set, which can easily correct their own tilt and have high accuracy and reliability.

[0033] It is understandable that the following embodiments of the present application only illustrate the application of the floating platform to an offshore wind turbine generator set as an example, but the floating platform provided in the embodiments of the present application is not limited to the following embodiments, and can also be used in other occasions where a floating structure is used for support and needs to maintain horizontality, and to protect it.

[0034] In order to better understand this application, Figures 1 to 6 The floating platform and wind turbine generator set provided in this application are described in detail.

[0035] Please also read Figures 1 to 3 , Figure 1 is a schematic diagram of the structure of a floating platform provided by an embodiment of the present application. Figure 2 is a schematic structural diagram of a floating platform provided in another embodiment of the present application; Figure 3 It is a structural schematic diagram of a mobile counterweight module provided in one embodiment of the present application.

[0036] In the first aspect, according to an embodiment of the present application, a floating platform 200 is proposed, including a floating foundation 40 and a mobile counterweight module 20, the floating foundation 40 includes a plurality of floating bodies 41 and a supporting platform 42 connected to the floating bodies 41, and the plurality of floating bodies are arranged around the supporting platform; a mobile counterweight module is arranged on the floating foundation, the mobile counterweight module includes a support rod and a counterweight block arranged on the support rod, and the counterweight block can move relative to the support rod in the axial direction of the support rod.

[0037] The present application provides a floating platform 200, including a floating foundation 40 and a mobile counterweight module 20, wherein the floating foundation 40 may include a support platform 42 for providing support and fixing for other structures installed on the floating platform 200, and a floating body 41 arranged around the support platform 42 for improving stability and buoyancy.

[0038] Optionally, the floating bodies 41 may have the same shape and size and may be spaced apart in the circumferential direction of the supporting platform 42 , and the distance between each floating body 41 and the center of the supporting platform 42 may be the same, so that the force applied thereto is more stable and the overall structure is more stable.

[0039] A plurality of floating bodies 41 are arranged around the support platform 42, and can be connected to the support platform 42 respectively, and adjacent floating bodies 41 can be connected to each other to improve the structural strength. Optionally, the number of floating bodies 41 can be more than three, and can be arranged at equal intervals in the circumference of the support platform 42 to further improve the stability of the floating foundation 40. The mobile counterweight module 20 can be arranged between the floating bodies 41, or the mobile counterweight module 20 can be arranged inside the floating body 41. By making a certain distance between the mobile counterweight module 20 and the support platform 42 located in the center, the force arm can be extended, so that the counterweight block 22 can adjust the center of gravity of the floating platform 200 as a whole more flexibly and effectively. The mobile counterweight module 20 can be installed at a main structure with a certain strength in the floating foundation 40, and extend a certain distance along a direction intersecting with the vertical direction. The mobile counterweight module 20 includes a support rod 21 and a counterweight block 22, and the counterweight block 22 is arranged on the support rod 21 and can move along the axial direction of the support rod 21. Optionally, the support rods 21 can be arranged in a one-to-one correspondence with the counterweights 22; or, in an embodiment that the strength of the support rods 21 can support, multiple counterweights 22 can be arranged on each support rod 21 at the same time to make the adjustment of the center of gravity more flexible; or, each counterweight 22 can be arranged corresponding to multiple support rods 21 extending parallel to each other to make the movement of the counterweight 22 smoother.

[0040] After the mobile counterweight module 20 is installed in the main support structure of the floating platform 200, as the counterweight block 22 moves on the support rod 21, the relative position between the counterweight block 22 and the center of gravity of the floating platform 200 as a whole can be changed, thereby changing the overall posture of the floating platform 200 and correcting the position and orientation of the wind turbine or other devices installed thereon.

[0041] Optionally, the support rod 21 and the counterweight block 22 arranged on the support rod 21 are recorded as a sub-module, and multiple sub-modules can be arranged in the mobile counterweight module 20 at the same time. The support rods 21 in these sub-modules can extend in different directions respectively, and each counterweight block 22 can move independently of each other, thereby making the adjustment of the center of gravity more flexible and accurate.

[0042] In some optional embodiments, the floating foundation 40 also includes a connecting beam 43, which is connected between adjacent floating bodies 41. The connecting beam 43 is a cylindrical structure and has a accommodating cavity extending along its own axial direction. The mobile counterweight module 20 is arranged in the accommodating cavity, and the support rod 21 extends along the axial direction of the connecting beam 43.

[0043] Multiple floating bodies 41 in the floating foundation 40 are arranged around the supporting platform 42, and connecting beams 43 can be arranged between adjacent floating bodies 41. Optionally, the connecting beams 43 can be arranged between every two adjacent floating bodies 41 in the circumferential direction of the supporting platform 42, so that the multiple floating bodies 41 are connected by the connecting beams 43 to form a ring extending along the circumference of the supporting platform 42, and the ring structure surrounds the supporting platform 42.

[0044] The connecting beam 43 may be a hollow cylindrical structure, and the accommodating cavity inside the connecting beam 43 may interconnect the cavities inside the two floating bodies 41, so as to facilitate the arrangement of the mobile counterweight module 20 in the accommodating cavity. The extension direction of the support rod 21 arranged in the accommodating cavity may correspond to the extension direction of the connecting beam 43, so that the counterweight block 22 can move in the axial direction of the connecting beam 43. In the embodiment where the connecting beam 43 connects the floating bodies 41 to form a ring, each connecting beam 43 may be provided with a mobile counterweight module 20, thereby enabling the adjustment of the center of gravity to be more flexible and accurate.

[0045] Optionally, the connecting beam 43 can be set as a hollow and sealed structure. In the embodiment where the mobile counterweight module 20 is set in the connecting beam 43, the position of the connecting beam 43 in the vertical direction can be adjusted so that it can be located below the waterline when the floating platform 200 is in working state, thereby correspondingly lowering the center of gravity of the floating platform 200 as a whole, further improving the stability of the floating platform 200. At the same time, the connecting beam 43 can also separate the internal accommodation cavity from the external water environment, so as to prevent the counterweight block 22 from being subjected to water resistance during movement or rusting due to being in the water environment.

[0046] Optionally, a connecting beam 43 may be provided between the floating body 41 and the supporting platform 42, and a supporting rod 21 and a counterweight 22 may also be provided in the connecting beam 43, so as to further increase the flexibility and accuracy of adjusting the overall center of gravity of the floating platform 200 by moving the counterweight 22 on the basis of firmly connecting the floating body 41 and the supporting platform 42.

[0047] In some optional embodiments, the floating foundation 40 includes three floating bodies 41 spaced apart from each other, adjacent floating bodies 41 are connected by connecting beams 43 , and the lengths of the multiple connecting beams 43 are the same.

[0048] The floating foundation 40 in the embodiment of the present application includes a supporting platform 42 and a plurality of floating bodies 41 arranged around the supporting platform 42. Specifically, a supporting platform 42 and three floating bodies 41 may be provided in the floating foundation 40. The three floating bodies 41 may be in the form of a cylinder, a cuboid, a truncated cone or the like extending in the vertical direction, and may be arranged at equal intervals in the circumferential direction of the supporting platform 42.

[0049] Optionally, a connecting beam 43 can be provided between every two floating bodies 41, that is, the floating platform 200 includes three connecting beams 43, so that the floating bodies 41 are arranged at the three vertices of the equilateral triangle, and the connecting beams 43 can extend along the three sides of the equilateral triangle respectively, and the support platform 42 can be arranged at the center point of the equilateral triangle, thereby making the structure of the floating platform 200 more stable, and making the support platform 42 evenly stressed in all directions and not easy to tilt.

[0050] Optionally, the connecting beam 43 may extend in a straight line and together with the floating body 41 form a structure close to a standard equilateral triangle. Correspondingly, the supporting rod 21 disposed inside the connecting beam 43 may also extend in a straight line to facilitate the movement of the counterweight 22 therein.

[0051] Alternatively, the connecting beam 43 may be extended along a preset curve, for example, at least partially in an arc shape, to form a specific shape structure or avoid other components. In the embodiment where the connecting beam 43 extends in a curve, the floating foundation 40 as a whole may be centrally symmetrically arranged about the central axis of the supporting platform 42, so that the supporting platform 42 is subjected to uniform force. At the same time, the support rod 21 arranged in the connecting beam 43 may extend along the curve in parallel with the central axis of the connecting beam 43, or the support rod 21 may be extended along a straight line by virtue of the internal space of the connecting beam 43 having a certain size.

[0052] In some optional embodiments, n support rods 21 are disposed in each connection beam 43 , and the counterweights 22 are disposed in one-to-one correspondence with the support rods 21 , and 6≤n≤12.

[0053] Optionally, multiple support rods 21 and multiple counterweights 22 may be provided in each connecting beam 43, wherein the support rods 21 may extend along the axial direction of the connecting beam 43 and be spaced apart from each other, and illustratively, the multiple support rods 21 may be arranged in an array. Optionally, the support rods 21 and the counterweights 22 may be provided in a one-to-one correspondence, and the number of the support rods 21 may be 6 to 12, and may be 8.

[0054] In an embodiment in which multiple support rods 21 are provided in each connecting beam 43, each support rod 21 can be driven independently of each other, so that each counterweight block 22 in the same connecting beam 43 can move independently of each other. The number of counterweight blocks 22 to be moved and the moving distance are selected according to the degree of inclination that needs to be corrected. The greater the degree of inclination that needs to be corrected, the more counterweight blocks 22 can be driven to move accordingly. When all the counterweight blocks 22 in the same connecting beam 43 move together, this part of the counterweight sub-module can achieve the maximum inclination correction effect.

[0055] Optionally, the distance that the counterweight 22 can move in the axial direction of the corresponding support rod 21, that is, the length of each support rod 21 can be 60m to 120m. Depending on the output power of the driving component and the connection method between the support rod 21 and the counterweight 22, the maximum moving speed of the counterweight 22 can be 3.5m / s to 7m / s, thereby enabling the correction of the inclination of the floating platform 200 to be timely and reliable.

[0056] Optionally, the weight of each counterweight block 22 can be 30000kg to 60000kg. At the same time, the counterweight block 22 can be in the shape of a cuboid, a cylinder, a prism, etc., so as to facilitate processing and movement. In the embodiment in which the counterweight block 22 is a cuboid, its size can be 1.5m×1m×1.5m to 2.5m×2m×1.5m. The material of the counterweight block 22 can be made of metal material to control the volume and ensure the weight.

[0057] In some optional embodiments, the support rod 21 is a threaded rod, and the counterweight block 22 is sleeved on the support rod 21 and threadedly connected to the support rod 21. In some optional embodiments, the mobile counterweight module 20 further includes a motor 23, which is connected to the support rod 21 and can drive the support rod 21 to rotate in its own circumferential direction.

[0058] The counterweight block 22 in the mobile counterweight module 20 is arranged on the support rod 21 and can move along the axial direction of the support rod 21. Specifically, the support rod 21 can be a threaded rod with threads on the outer peripheral surface, and the counterweight block 22 is sleeved on the support rod 21. It can optionally be provided with a connecting hole with threads on the inner wall. The support rod 21 passes through the connecting hole and is threadedly connected to the support rod 21, so that the position of the counterweight block 22 in the axial direction of the support rod 21 can be changed by rotating the support rod 21.

[0059] Optionally, the support rod 21 can directly pass through a connecting hole set in the center of the counterweight block 22, or the counterweight block 22 can also be provided with a connecting portion and connected to the support rod 21 through the connecting portion. The connecting portion can be optionally protruded from a side surface of the counterweight block 22 and set to a structural form that is the same or similar to the lifting ear.

[0060] Optionally, the mobile counterweight module 20 may use a driving member such as an electric motor, a hydraulic rod, a telescopic arm, etc. as a power source to move the counterweight block 22 along the axial direction of the support rod 21 .

[0061] In some optional embodiments, the mobile counterweight module 20 further includes a slide rail 24 , the orthographic projection of the counterweight block 22 on the plane where the slide rail 24 is located is located within the contour range of the slide rail 24 , and the counterweight block 22 is movably connected to the slide rail 24 .

[0062] The mobile counterweight module 20 may further include a slide rail 24, which is used to support the counterweight 22 and further stabilize the movement of the counterweight 22. The slide rail 24 and the support rod 21 may extend in the same direction and have the same or similar extension size. The surface of one side of the slide rail 24 close to the support rod 21 may abut against the counterweight 22, and at least partially have a low surface roughness, so that the counterweight 22 can move on the slide rail 24. Optionally, the counterweight 22 may be slidably connected to the slide rail 24 through a structure such as a slider or a protrusion, or the counterweight 22 may be rotatably connected to the slide rail 24 through a structure such as a pulley.

[0063] Optionally, the orthographic projection of the counterweight 22 on the plane where the slide rail 24 is located can be located within the contour range of the slide rail 24, so that the counterweight 22 can have a larger contact area with the slide rail 24 or have a more evenly distributed contact point, thereby making the counterweight 22 more stable during movement. Exemplarily, the side surface of the counterweight 22 close to the slide rail 24 can be arranged in accordance with the shape of the slide rail 24 and completely abut against the slide rail 24, and both can be planes.

[0064] Please also read Figure 4 and Figure 5 , Figure 4 is a schematic diagram of the structure of a tilt correction system provided by an embodiment of the present application, Figure 51 is a schematic diagram of the structure of a control module provided by an embodiment of the present application. In some optional embodiments, the floating platform 200 further includes a data acquisition device 10 for collecting operating parameters and environmental parameters of the floating platform 200 .

[0065] Optionally, in order to enable the floating platform 200 to have an automatic tilt correction function, the floating platform 200 may also be provided with a tilt correction system 100, which can be applied to the floating platform 200 and provide the floating platform 200 with an automatic or semi-automatic tilt correction function. The tilt correction system 100 includes a data acquisition device 10 and a control module 30, and can control the mobile counterweight module 20. The data acquisition device 10 is used to collect the operating parameters of the floating platform 200 itself and the environmental parameters of the environment in real time. The data acquisition device 10 may include a variety of sensors, such as a level sensor 11, an angular velocity sensor 12, etc., which can collect the overall tilt direction, tilt angle, angular velocity of the floating platform 200 when shaking or tilting, and other parameters.

[0066] The data acquisition device 10 may also include sensors such as a wind vane and anemometer for collecting environmental parameters of the location of the floating platform 200, determining the direction and speed of the incoming wind, and determining the impact of the ambient wind on the sea surface and the floating platform 200. In an embodiment where the floating platform 200 is used to carry a wind turbine, the specific direction to which the impeller and the nacelle should turn may also be determined based on the parameters collected by the aforementioned data acquisition device 10.

[0067] Optionally, depending on the type of sensor and the parameters to be acquired, the sensors in the data acquisition device 10 may be respectively arranged at different positions. For example, an anemometer or the like may be arranged at a high place far from the sea surface.

[0068] The control module 30 can be installed on the floating foundation 40 or set independently therefrom. The control module 30 is connected to the data acquisition device 10 and the mobile counterweight module 20 for communication at the same time. The communication connection here means that it can be directly connected through a signal line, or it can also be remotely connected by sending and receiving signals through an antenna. The control module 30 may include data storage and data processing equipment for receiving the operating parameters and environmental parameters collected by the data acquisition device 10, and judging the current posture and inclination of the floating platform 200 according to the aforementioned parameters, and then calculating the movement plan of each counterweight block 22 according to the inclination and the setting position of the mobile counterweight module 20, and controlling the counterweight block 22 to move to the corresponding position according to the movement plan to correct the inclination of the floating platform 200.

[0069] Through the cooperation among the data acquisition device 10, the mobile counterweight module 20 and the control module 30, the mobile counterweight module 20 can be controlled accordingly according to the current posture of the floating platform 200 itself and the environmental parameters, and the center of gravity of the mobile counterweight module 20 can be conveniently adjusted by the movement of the counterweight block 22, thereby adjusting the overall posture of the floating platform 200, thereby conveniently and accurately reducing the inclination angle of the floating platform 200 and realizing automatic inclination correction.

[0070] In some optional embodiments, the data acquisition device 10 includes at least one of a wind vane, an anemometer, an acceleration sensor, a satellite locator, a level sensor 11 , an angular velocity sensor 12 , and a depth sounder 13 .

[0071] In order to make the types of parameters collected more comprehensive and the movement plan obtained by the control module 30 more accurate, the data acquisition device 10 may include a variety of different sensors. For example, it may include a wind vane and anemometer, which are used to detect the wind direction and wind speed at the location of the floating platform 200 and judge the impact on the floating platform 200 accordingly.

[0072] The data acquisition device 10 may also include a satellite locator for determining the specific location of the floating platform 200 so as to obtain environmental parameters such as air pressure and ocean current information according to the location.

[0073] The data acquisition device 10 may further include a level sensor 11, an acceleration sensor and an angular velocity sensor 12, wherein the level sensor 11 is used to detect the tilt direction and tilt angle of the floating platform 200, and the acceleration sensor and the angular velocity sensor 12 can be used to detect the speed and acceleration of the translation and rotation of a preset position in the floating platform 200 to accurately determine the posture of the floating platform 200.

[0074] The data acquisition device 10 may also include a depth sounder 13 to detect the draft depth, wave height, flow direction, cycle length, etc. of the floating platform 200, and use it as a component of environmental parameters to correct the posture of the floating platform 200.

[0075] In some optional embodiments, the control module 30 includes a power supply submodule 31, a data processor 32 and a controller 33, and the mobile counterweight module 20 also includes a motor 23. The power supply submodule 31 is respectively connected to the data processor 32, the controller 33 and the motor 23, the data processor 32 is respectively communicated with the data acquisition device 10 and the controller 33, and the controller 33 is communicated with the motor 23.

[0076] Optionally, the control module 30 may be composed of a power supply submodule 31 for providing electric energy, a data processor 32 for receiving and processing data, and a controller 33 for directly controlling the mobile counterweight module 20. The power supply submodule 31 may be used to provide electric energy for various components in the tilt correction system 100 that require electric energy to drive. In an embodiment where a wind turbine is provided on the floating platform 200, the power supply submodule 31 may be powered by the wind turbine.

[0077] Optionally, the circuit in the control module 30 may not be equipped with a switch. After the wind turbine enters the working state and generates electricity, the control module 30 can be driven by this part of the electricity to operate. That is, the opening and closing state of the control module 30 is determined by the working state of the wind turbine, so that the tilt correction system 100 can provide tilt correction effect in a timely and continuous manner.

[0078] The data processor 32 may be a computer and provided with a human-machine interface, so that the control module 30 can be set, inspected, or maintained as a whole through the data processor 32. The data processor 32 is connected to the data acquisition device 10 and the controller 33 in communication, receives signals from the data acquisition device 10, and sends the processed results to the controller 33.

[0079] Optionally, submodules such as a monitoring database, stability check, and BP (backpropagation) neural network may also be integrated in the data processor 32. The monitoring database submodule may be used to store environmental parameters and the like acquired by the data acquisition device 10. Specifically, the monitoring database may be used to filter the parameters acquired by the data acquisition device 10, remove missing values, duplicate values, and abnormal values ​​in the parameter sequence, and perform data smoothing, and then store the filtered valid data.

[0080] The stability verification submodule can first read the tilt direction and tilt angle of the floating platform 200 from the monitoring database module, and then obtain the number, position, and individual mass of the counterweight blocks 22. Finally, the position distribution plan of each counterweight block 22 can be calculated based on other pre-stored basic data of the floating platform 200.

[0081] The BP neural network submodule can be used to assist data processing, reduce calculation errors, and achieve the best working state of the system through data learning, so that the motor 23 can adopt different rotation speeds under different working conditions, thereby further improving the accuracy of tilt correction.

[0082] The controller 33 is in communication with the motor 23 in the mobile counterweight module 20, and is used to transmit specific signals to each motor 23 according to the instructions of the data processor 32, so that each motor 23 drives its corresponding counterweight block 22 to move, and finally each counterweight block 22 reaches a preset position.

[0083] In some optional embodiments, the data acquisition device 10 includes a plurality of depth sounders 13 , a plurality of level sensors 11 , and a plurality of angular velocity sensors 12 , and the depth sounders 13 , the level sensors 11 , and the angular velocity sensors 12 are respectively arranged in one-to-one correspondence with the plurality of floating bodies 41 .

[0084] Optionally, the data acquisition device 10 may be provided with a plurality of depth sounders 13, a plurality of level sensors 11, and a plurality of angular velocity sensors 12. When the data acquisition device 10 is installed, these sensors may be provided in one-to-one correspondence with the floating bodies 41, that is, each floating body 41 may be provided with a depth sounder 13, a level sensor 11, and an angular velocity sensor 12. By providing a depth sounder 13 on each floating body 41, the draft of different floating bodies 41 may be obtained, and the tilt angle and tilt direction of the floating platform 200 may be obtained more accurately according to the difference between the drafts and the detection result of the level sensor 11. At the same time, in the embodiment in which the data acquisition device 10 includes a satellite locator, the positioning result and the aforementioned draft data may be combined to make the determination of the wave height and wave period more accurate.

[0085] By respectively arranging a sensor on each floating body 41 , the position and posture of the floating platform 200 can be more accurately determined through the difference between the sensors, thereby further making the tilt correction effect accurate and reliable.

[0086] See also Figure 6 , Figure 6 1 is a schematic diagram of the structure of a wind turbine generator set provided by an embodiment of the present application. In the second aspect, according to an embodiment of the present application, a wind turbine generator set 300 is proposed, comprising a floating platform 200, a tower 50 and a nacelle 60 in any embodiment of the first aspect; the tower 50 is arranged on the supporting platform 42; and the nacelle 60 is connected and arranged on a side of the tower 50 away from the supporting platform 42.

[0087] The present application also provides a wind turbine generator set 300, which includes a floating platform 200 for providing bearing and fixing functions. The floating platform 200 includes a supporting platform 42 located in the center. One end of the tower 50 can be detachably connected to the supporting platform 42, and the other end of the tower 50 can be detachably connected to the nacelle 60.

[0088] Optionally, the wind turbine generator set 300 further includes an impeller 70 , which may include a hub and a plurality of blades. The impeller 70 may be mounted at one end of the nacelle 60 and may be rotatable relative to the nacelle 60 .

[0089] Optionally, in an embodiment in which the data acquisition device 10 includes a wind vane, an anemometer and an acceleration sensor, these three sensors can all be arranged on the side of the cabin 60 facing away from the tower 50, that is, at the top of the cabin 60. By setting the sensors at a high place, the determination of wind speed and wind direction can be made more accurate, and at the same time, the direction and magnitude of the acceleration of the motion at the impeller 70 can be more accurately detected, thereby further improving the tilt correction effect.

[0090] The wind turbine generator set 300 provided in the embodiment of the present application has all the beneficial effects of the floating platform 200 provided in the embodiment of the present application. For details, please refer to the specific description of the floating platform 200 in the above embodiments, which will not be repeated in this embodiment.

[0091] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A floating platform, characterized in that: include: A floating foundation comprises a plurality of floating bodies and a supporting platform connected to the floating bodies, wherein the plurality of floating bodies are arranged around the supporting platform; A mobile counterweight module is arranged on the floating foundation. The mobile counterweight module includes a support rod and a counterweight block arranged on the support rod. The counterweight block can move relative to the support rod in the axial direction of the support rod.

2. The floating platform according to claim 1, characterized in that: The floating foundation also includes a connecting beam, which is connected between adjacent floating bodies. The connecting beam is a cylindrical structure and has a containing cavity extending along its own axial direction. The mobile counterweight module is arranged in the containing cavity, and the support rod extends along the axial direction of the connecting beam.

3. The floating platform according to claim 2, characterized in that: The floating foundation comprises three floating bodies which are spaced apart from each other. Adjacent floating bodies are connected by connecting beams, and a plurality of connecting beams have the same length.

4. The floating platform according to claim 2, characterized in that: Each of the connecting beams is provided with n supporting rods, and the counterweight blocks are provided in a one-to-one correspondence with the supporting rods, and 6≤n≤12.

5. The floating platform according to claim 1, characterized in that: The support rod is a threaded rod, and the counterweight is sleeved on the support rod and threadedly connected to the support rod.

6. The floating platform according to claim 5, characterized in that: The mobile counterweight module further comprises a motor, which is connected to the support rod and can drive the support rod to rotate in its own circumferential direction.

7. The floating platform according to claim 5, characterized in that: The mobile counterweight module also includes a slide rail, the orthographic projection of the counterweight block on the plane where the slide rail is located is located within the contour range of the slide rail, and the counterweight block is movably connected to the slide rail.

8. The floating platform according to claim 1, characterized in that: The floating platform also includes data acquisition equipment for collecting operating parameters and environmental parameters of the floating platform.

9. The floating platform according to claim 8, characterized in that: The data acquisition device includes at least one of a wind vane, an anemometer, an acceleration sensor, a satellite locator, a level sensor, an angular velocity sensor, and a depth sounder.

10. A wind turbine generator set, characterized in that: include: The floating platform according to any one of claims 1 to 9; A tower, arranged on the supporting platform; The cabin is connected to a side of the tower away from the supporting platform.

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