A floating wind power platform attitude control system

Abstract

The present invention relates to the field of marine technology and engineering, and in particular to a floating wind power platform attitude control system. The present invention effectively controls the attitude of the floating wind power platform through the mutual cooperation between a measurement system, a control system, and a platform attitude control system, thereby providing good protection for the safe and stable operation of the floating wind turbine. At the same time, the platform attitude control system is provided with a second tidal energy power generation system to provide electrical energy for the electrical connection between the various systems, without additionally consuming the energy of the floating wind turbine, thereby improving resource utilization.

Description

Technical Field

[0001] The present invention relates to the field of marine technology and engineering, and in particular to a floating wind power platform attitude control system. Background Art

[0002] Energy is a key factor influencing development. To address the environmental crisis, increasing the proportion of renewable energy is currently a global consensus. With the increasing development of onshore and offshore wind energy, offshore wind energy is gradually coming into view. The notable feature of offshore wind energy is the use of floating platforms as the foundation of wind turbines. Compared with fixed foundations, floating foundations bring great instability. The sea conditions in the open sea are complex, and the wind, waves and currents are more intense. Although the energy available is more abundant, it also brings more dangers. The floating platform also has more violent movements, which in turn affects the capture efficiency of the wind turbine and, in more serious cases, can cause the entire machine to capsize. Therefore, attitude control of the floating platform is particularly important. Through active control, floating wind turbines can operate within a stable and reliable range, achieving the goal of safely and efficiently capturing wind energy, and adding a boost to improving the energy structure. Summary of the Invention

[0003] The purpose of the present invention is to provide a floating wind power platform attitude control system that can effectively adjust the platform attitude and provide good protection for the safe and stable operation of the floating wind turbine.

[0004] The object of the present invention is achieved like this:

[0005] A floating wind power platform attitude control system includes a floating wind turbine platform with a wind turbine impeller mounted on its upper side, and a platform attitude control system fixedly mounted on the floating wind turbine platform. The platform attitude control system is evenly distributed around the floating wind turbine platform.

[0006] A measurement system installed inside the floating wind turbine platform; the measurement system is used to collect the platform posture signal of the current state and transmit it to the control system;

[0007] a control system installed inside the floating wind turbine platform; the control system compares the current platform posture with the desired platform posture, and outputs a control signal to the platform posture adjustment system based on the comparison result; the platform posture adjustment system adjusts the platform posture according to the control signal issued by the control system;

[0008] A first tidal energy power generation system, which is installed at the bottom of the floating wind turbine platform;

[0009] The floating wind turbine platform comprises:

[0010] a tower, comprising an upper tower and a lower tower;

[0011] A support frame is provided, which is used to form a floating body; an upper tower is provided upwardly from the middle of the support frame, and the wind turbine impeller is installed on the upper part of the upper tower; the upper tower is rotatably mounted on the support frame, or the wind turbine impeller is rotatably mounted on the upper end of the upper tower; a lower tower is provided downwardly from the middle of the support frame, and the first tidal energy power generation system is installed on the lower end of the lower tower; the lower tower is rotatably mounted on the support frame, or the first tidal energy power generation system is rotatably mounted on the end of the lower tower;

[0012] The platform attitude adjustment device comprises:

[0013] an airfoil plate rotatably mounted on a peripheral side of the support frame;

[0014] A second tidal energy power generation system is symmetrically installed on both sides of the airfoil;

[0015] The control system adjusts the angle of attack of the airfoil and the orientation of the second tidal energy power generation system.

[0016] Preferably, the wing-shaped plate is transversely mounted on the support frame and includes a front portion, a middle portion and a rear portion;

[0017] The thickness increases gradually from the front to the middle, and decreases gradually from the middle to the tail, and the upper and lower surfaces of the airfoil form curved surfaces; the initial thickness of the front is smaller than the end thickness of the tail.

[0018] A first connecting rod is provided on both sides of the wing plate, one end of the first connecting rod is rotatably mounted on the support frame; the first connecting rod crosses the middle part of the wing plate.

[0019] Preferably, a second connecting rod is provided at one end of the first connecting rod away from the airfoil plate;

[0020] The second tidal energy power generation system is installed on the second connecting rod.

[0021] Preferably, the support frame comprises:

[0022] a central column formed in the middle of the support frame and mounted in the middle of the tower;

[0023] A plurality of connecting beams are evenly distributed around the central column, with one end of each connecting beam connected to the central column and the other end radiating outward to form a mounting plate;

[0024] A plurality of peripheral columns, each of which is vertically mounted on the upper surface of the mounting plate;

[0025] a support rod installed between the central column and the peripheral columns;

[0026] A mounting frame is mounted on the lower end of the mounting plate and is used for mounting the airfoil plate and the second tidal energy power generation system.

[0027] Preferably, the mounting frame includes a plurality of first support rods and a plurality of second support rods;

[0028] Wherein, the first support rod is installed on both sides of the lower end of the mounting plate, and the second support rod is installed vertically downward at the end of the first support rod away from the mounting plate;

[0029] The first connecting rod passes through the second supporting rod and is rotatably mounted on the second supporting rod, so that the airfoil plate is rotatably mounted on the second supporting rod.

[0030] Preferably, the wing plates are arranged parallel to each other;

[0031] The control system controls the initial orientation of the airfoil to be consistent with the direction of the ocean current, that is, the front portion of the airfoil is aligned with the ocean current.

[0032] Preferably, the control system is used to control the orientation of the first tidal energy power generation system to be consistent with the direction of the ocean current.

[0033] Preferably, the platform attitude adjustment system is internally provided with an electric motor;

[0034] The electric motor adjusts the angle of attack of the airfoil and the orientation of the second tidal energy power generation system according to the control signal sent by the control system, thereby achieving platform attitude adjustment.

[0035] Preferably, the central column and the tower are rigidly connected.

[0036] Preferably, the first tidal energy power generation system is rigidly connected to the lower tower.

[0037] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0038] The present invention effectively regulates the attitude of the floating wind power platform through the mutual cooperation between the measurement system, the control system and the platform attitude adjustment system, providing good protection for the safe and stable operation of the floating wind turbine; at the same time, the platform attitude adjustment system is provided with a second tidal energy power generation system to provide electrical energy for the electrical connection between the various systems, without consuming additional energy of the floating wind turbine, thereby improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0040] Figure 2It is a structural schematic diagram of the airfoil plate and the second tidal energy power generation system of the present invention.

[0041] Figure 3 It is a flowchart of the present invention.

[0042] Reference numerals:

[0043] 101-fan impeller; 112-upper tower; 122-lower tower; 203-airfoil; 213-front; 223-middle; 233-tail; 243-first connecting rod; 253-second connecting rod; 212-center column; 222-connecting beam; 232-mounting plate; 242-outer column; 252-support rod; 262-mounting frame; 2620-first support rod; 2621-second support rod; 204-second tidal energy power generation system; 3-first tidal energy power generation system. DETAILED DESCRIPTION

[0044] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all possible alternatives, improvements and equivalents within the scope of the claims.

[0045] See also Figure 1-Figure 3 :

[0046] A floating wind power platform attitude control system includes a floating wind turbine platform with a wind turbine impeller 101 installed on its upper side, a platform attitude adjustment system fixedly installed on the floating wind turbine platform, and the platform attitude adjustment system is evenly distributed around the floating wind turbine platform; a measurement system installed inside the floating wind turbine platform; the measurement system is used to collect the platform attitude signal of the current state and transmit it to the control system; the control system is installed inside the floating wind turbine platform; the control system compares the current platform attitude with the expected platform attitude, and outputs a control signal to the platform attitude adjustment system according to the comparison result, and the platform attitude adjustment system realizes the platform attitude adjustment according to the control signal sent by the control system; a first tidal energy power generation system 3 is installed at the bottom of the floating wind turbine platform; the floating wind turbine platform includes a tower and a support frame, wherein the tower includes an upper tower and a lower tower; the support frame is used to form a floating body; an upper tower 112 is provided upwardly from the middle of the support frame, The upper part of the upper tower 112 is equipped with a wind turbine impeller 101; the upper tower 112 is rotatably mounted on the supporting frame, or the wind turbine impeller is rotatably mounted on the upper end of the upper tower; a lower tower 122 is arranged downwardly from the middle of the supporting frame, and the lower end of the lower tower 122 is equipped with a first tidal energy power generation system 3; the lower tower 122 is rotatably mounted on the supporting frame, or the first tidal energy power generation system 3 is rotatably mounted on the end of the lower tower 122; the platform attitude adjustment device includes an airfoil 203 and a second tidal energy power generation system 204, and the airfoil 203 is rotatably mounted on the circumference of the supporting frame; the second tidal energy power generation system 204 is symmetrically mounted on both sides of the airfoil; the control system adjusts the angle of attack of the airfoil 203 and the direction of the second tidal energy power generation system 204; the attitude of the floating wind power platform is effectively regulated by the cooperation between the measurement system, the control system and the platform attitude adjustment system, providing a good guarantee for the safe and stable operation of the floating wind turbine.

[0047] Furthermore, the support frame includes a central column 212, three connecting beams 222, three peripheral columns 242, a strut 252 and a mounting frame 262, wherein the central column 212 is a barrel-shaped structure, which is formed in the middle of the support frame and is installed in the middle of the tower. The three connecting beams 222 are evenly distributed around the central column 212, and one end of the connecting beam 222 is connected to the central column 212, and the other end radiates outward to form a circular mounting plate 232. The three peripheral columns 242 are respectively vertically mounted on the upper end surface of the mounting plate 232. A strut 252 is installed between the upper end of the central column 212 and the upper end of the peripheral columns 242. The strut 252 makes the overall structure of the support frame more stable. The support frame constitutes three groups of structures, and each group of structures is arranged around the tower in a 120° rotational symmetric manner. There is no large connection structure between the groups of structures, so as to provide great convenience for the construction, transportation and installation of the floating wind turbine platform.

[0048] In addition, the connection method between the upper tower 112 and the support frame can be a rigid connection, or the upper tower 112 can be rotatably installed on the support frame. When the connection method between the upper tower 112 and the support frame is a rigid connection, the fan impeller 101 can be rotatably installed on the upper end of the upper tower 112; when the upper tower 112 is rotatably installed on the support frame, the fan impeller 101 is fixedly installed on the upper tower 112, and the rotation of the fan impeller 101 is realized by the rotation of the upper tower 112; the preferred connection method of this technical solution is a rigid connection.

[0049] Furthermore, the support frame also includes an installation frame 262, which is installed on the installation plate 232. The installation frame 262 is divided into six first support rods 2620 and six second support rods 2621, wherein the two first support rods 2620 are installed in parallel on both sides of the lower end of the installation plate 232, and the second support rods 2621 are installed vertically on the end of the first support rod 2620 away from the installation plate 232.

[0050] Furthermore, the three wing panels 203 are rotatably installed laterally between the two second support rods 2621, and the wing panels 203 are divided into a front portion 213, a middle portion 223 and a tail portion 233; wherein, the thickness gradually increases from the front portion 213 to the middle portion 223, and gradually decreases from the middle portion 223 to the tail portion 233, and the upper and lower surfaces of the wing panels form curved surfaces; the initial thickness of the front portion 213 is less than the final thickness of the tail portion 233; wherein, the three wing panels 203 are on the same horizontal plane and parallel to each other, and the initial orientation of the wing panels 203 is controlled by the control system to be consistent with the direction of the ocean current, that is, the front portion 213 of the wing panel is aligned with the ocean current; the advantage of this structural design of the wing panel 203 is that the front portion 213 rushing towards the ocean current can effectively reduce the impact of the ocean current on the wing panel 203, thereby effectively reducing the damage caused by the impact of the ocean current, further extending the service life of the wing panel 203, and on the other hand reducing the influence of the ocean current on the orientation of the wing panel 203, so that the platform attitude of the platform attitude adjustment system can be maintained for a longer time.

[0051] Furthermore, first connecting rods 243 are provided on both sides of the wing plate 203 . The first connecting rod 243 passes through the middle of the wing plate 203 . The other end of the first connecting rod 243 passes through the middle of the second support rod 2621 and is rotatably connected to the second support rod 2621 .

[0052] Furthermore, a second connecting rod 253 is vertically mounted on the first connecting rod 243 , and the second tidal energy generation system 204 is mounted on both sides of the airfoil 203 , specifically on the second connecting rod 253 .

[0053] Furthermore, the connection method between the lower tower 122 and the support frame can be a rigid connection, or the lower tower 122 can be rotatably installed on the support frame. When the connection method between the lower tower 122 and the support frame is a rigid connection, the first tidal energy power generation system 3 can be rotatably installed on the end of the lower tower 122; when the lower tower 122 is rotatably installed on the support frame, the first tidal energy power generation system 3 is fixedly installed at the lower end of the lower tower 122, and the rotation of the first tidal energy power generation system 3 is realized by the rotation of the lower tower 122; the preferred connection method of this technical solution is a rigid connection.

[0054] Furthermore, an electric motor is provided inside the platform attitude adjustment system, wherein the electric motor adjusts the angle of attack of the airfoil 203 and the direction of the second tidal energy generation system 204 according to the control signal sent by the control system to achieve platform attitude adjustment.

[0055] Furthermore, the control system can adjust and control the orientation of the first tidal energy power generation system 3 to always be consistent with the direction of the ocean current. When the direction of the ocean current changes, the orientation of the first tidal energy power generation system 3 changes accordingly.

[0056] The system works as follows:

[0057] The measurement system collects the platform attitude signal of the current state and transmits it to the control system. The control system compares the platform attitude of the current state with the expected platform attitude, and outputs a control signal to the platform attitude adjustment system based on the comparison. The platform attitude adjustment system receives the control signal from the control system and changes the angle of attack of the airfoil and the direction of the second tidal energy power generation system through the electric motor in the platform attitude adjustment system, thereby adjusting the platform attitude.

[0058] The above shows and describes the basic principles, main features and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the invention. Such changes and modifications are intended to fall within the scope of the invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating wind power platform attitude control system, comprising a floating wind turbine platform, a wind turbine impeller (101) being installed on the upper side thereof, characterized in that: include: A platform attitude adjustment system is fixedly mounted on the floating wind turbine platform, and the platform attitude adjustment system is evenly distributed around the floating wind turbine platform; A measurement system installed inside the floating wind turbine platform; the measurement system is used to collect the platform posture signal of the current state and transmit it to the control system; a control system installed inside the floating wind turbine platform; the control system compares the current platform posture with the desired platform posture, and outputs a control signal to the platform posture adjustment system based on the comparison result; the platform posture adjustment system adjusts the platform posture according to the control signal issued by the control system; A first tidal energy power generation system (3), which is installed at the bottom of the floating wind turbine platform; The floating wind turbine platform comprises: A tower comprising an upper tower (112) and a lower tower (122); A support frame is provided for forming a floating body; an upper tower (112) is provided upwardly in the middle of the support frame, and the upper part of the upper tower (112) is provided with the fan impeller (101); the upper tower (112) is rotatably mounted on the support frame, or the fan impeller (101) is rotatably mounted on the upper end of the upper tower (112); a lower tower (122) is provided downwardly in the middle of the support frame, and the lower end of the lower tower (122) is provided with the first tidal energy power generation system (3); the lower tower (122) is rotatably mounted on the support frame, or the first tidal energy power generation system (3) is rotatably mounted on the end of the lower tower (122); The platform attitude adjustment system includes: An airfoil plate (203) rotatably mounted on a peripheral side of the support frame; a second tidal energy power generation system (204), which is symmetrically installed on both sides of the airfoil (203); The control system adjusts the angle of attack of the airfoil (203) and the orientation of the second tidal energy power generation system (204); The wing-shaped plate (203) is laterally mounted on the support frame, and comprises a front portion (213), a middle portion (223) and a rear portion (233); The thickness gradually increases from the front portion (213) to the middle portion (223), and gradually decreases from the middle portion (223) to the tail portion (233), and the upper and lower surfaces of the airfoil (203) form curved surfaces; the initial thickness of the front portion (213) is smaller than the final thickness of the tail portion (233); First connecting rods (243) are provided on both sides of the wing plate (203), and one end of the first connecting rod (243) is rotatably mounted on the support frame; the first connecting rod (243) crosses the middle portion (223) of the wing plate (203); A second connecting rod (253) is provided at one end of the first connecting rod (243) away from the wing plate (203); The second tidal energy power generation system (204) is installed on the second connecting rod (253); The support frame comprises: a central column (212) formed in the middle of the support frame and mounted in the middle of the tower (102); a plurality of connecting beams (222) uniformly distributed around the central column (212), with one end of each connecting beam (222) connected to the central column (212) and the other end radiating outward to form a mounting plate (232); A plurality of peripheral columns (242) are respectively mounted vertically on the upper end surface of the mounting plate (232); a support rod (252) mounted between the central column (212) and the peripheral columns (242); A mounting frame (262) is mounted on the lower end of the mounting plate (232) and is used to mount the airfoil plate (203) and the second tidal energy power generation system (204).

2. A floating wind power platform attitude control system according to claim 1, characterized in that: The mounting frame (262) includes a plurality of first support rods (2620) and a plurality of second support rods (2621); Wherein, the first support rod (2620) is installed on both sides of the lower end of the mounting plate (232), and the second support rod (2621) is installed vertically downward on the end of the first support rod (2620) away from the mounting plate (232); The first connecting rod (243) passes through the second support rod (2621) and is rotatably mounted on the second support rod (2621), so that the wing plate (203) is rotatably mounted on the second support rod (2621).

3. The floating wind power platform attitude control system according to claim 2, characterized in that: The wing plates (203) are arranged parallel to each other; The control system controls the initial orientation of the wing plate (203) to be consistent with the direction of the ocean current, that is, the front portion (213) of the wing plate (203) is aligned with the ocean current.

4. The floating wind power platform attitude control system according to claim 2, characterized in that: The control system controls the orientation of the first tidal energy power generation system (3) to be consistent with the direction of the ocean current.

5. The floating wind power platform attitude control system according to claim 1, characterized in that: The platform attitude adjustment system is internally provided with an electric motor; The electric motor adjusts the angle of attack of the airfoil (203) and the orientation of the second tidal energy generation system (204) according to the control signal sent by the control system, thereby achieving platform attitude adjustment.

6. The floating wind power platform attitude control system according to claim 1, characterized in that: The connection between the central column (212) and the tower is a rigid connection.

7. The floating wind power platform attitude control system according to claim 1, characterized in that: The connection between the first tidal energy power generation system (3) and the lower tower (122) is a rigid connection.

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