A wind turbine capable of fully automatic yaw

Abstract

The present invention belongs to the field of wind power generation and provides a wind turbine capable of fully automatic yawing, which comprises a base plate, a bearing column, a support plate, a fixed cylinder, a central shaft and a sliding plate; the top of the pile body is fixedly connected to the base plate, and the top of the base plate is fixedly connected to the bearing column; the fixed cylinder is of a hollow structure and is sleeved on the bearing column, the bottom of the fixed cylinder is installed on the base plate, and the top of the fixed cylinder is rotatably provided with the sliding plate, and the rotation direction of the sliding plate is around the circumference of the bearing column; the central shaft passes through the bearing column, and the top of the central shaft is fixedly connected to the support plate; the top of the bearing column is rotatably connected to the support plate, and both the sliding plate and the saddle bridge are fixedly connected to the support plate; a conductive wheel is arranged on the sliding plate, a conductive ring is sleeved on the outer side surface of the fixed cylinder, and the conductive wheel contacts the conductive ring for contact conduction; the output cable of the wind turbine generator set is electrically connected to the conductive wheel, and the loop cable of the wind turbine generator set is electrically connected to the central shaft; the present invention can effectively solve the problem of yaw cable uncoiling of the wind turbine.

Description

Technical Field

[0001] The present invention belongs to the field of wind power generation, and particularly relates to a wind turbine capable of fully automatic yawing. Background Art

[0002] With the continuous development of the new energy industry, as the main force of the new energy industry, the basic structures and control logics of wind turbines are basically the same. For example, for the yaw primary drive system and the saddle bridge, when the wind turbine yaws to face the wind, it will drive the stator and rotor side cables of the generator (i.e., the output cable and the loop cable) to rotate together. When the torsion angle reaches 850 degrees, the soft protection and cams in the yaw system of the wind turbine act, and the wind turbine cannot continue to yaw automatically. After personnel remotely control or locally control the wind turbine to yaw and untwist the cable in the opposite direction, the soft protection and cams withdraw from the protection state, and the yaw system can resume operation. Therefore, the current wind turbines have the following problems:

[0003] (1) The maximum rotation angle of the saddle bridge of the traditional wind turbine is limited, resulting in the influence on the wiring of the output cable and the loop cable of the wind turbine after yawing by a large angle, and it is easy to entangle and stretch the two, affecting power transmission;

[0004] (2) When the traditional wind turbine rotates to the maximum yaw angle, it cannot continue to rotate, and manual remote control or local control is required for yawing and untwisting the cable, increasing the operation and maintenance cost;

[0005] (3) During the yaw process of the traditional wind turbine, due to the inability to effectively manage the cable wiring, the friction and wear between the cables often occur, shortening the service life of the cables, and at the same time increasing the failure rate and potential safety hazards of the wind turbine.

[0006] Based on the above problems, the present invention uses a ring layout to replace cable power conduction, solves the problem of the maximum yaw angle of the wind turbine from the source, can realize the full-automatic yaw control of the wind turbine, effectively avoids the problems of cable entanglement and wear, reduces the operation and maintenance cost and potential safety hazards, and has broad application prospects. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides a wind turbine capable of fully automatic yawing.

[0008] The technical solution adopted by the present invention is:

[0009] A wind turbine capable of fully automatic yawing includes a wind power generation set, a saddle bridge and a pile body. The wind power generation set is installed on the saddle bridge, and the saddle bridge is installed on the top of the pile body through a connection structure; the connection structure includes a base plate, a bearing column, a support plate, a fixed cylinder, a central axis and a sliding plate;

[0010] The top of the pile body is fixedly connected to the base plate, and the top of the base plate is fixedly connected to the bearing column; the fixed cylinder is a hollow structure, the fixed cylinder is sleeved on the bearing column, the bottom of the fixed cylinder is installed on the base plate, and the top of the fixed cylinder is rotatably provided with the sliding plate, and the rotation direction of the sliding plate is around the circumference of the bearing column; the central axis passes through the bearing column, and the top of the central axis is fixedly connected to the support plate; the top of the bearing column is rotatably connected to the support plate, and both the sliding plate and the saddle bridge are fixedly connected to the support plate;

[0011] A conductive wheel is arranged on the sliding plate, and a conductive ring is sleeved on the outer side surface of the fixed cylinder, and the conductive wheel contacts the conductive ring to achieve contact conduction;

[0012] The output cable of the wind power generation unit is electrically connected to the conductive wheel, and the loop cable of the wind power generation unit is electrically connected to the central axis.

[0013] Furthermore, a conductive plate is fixedly connected inside the sliding plate, the bottom of the conductive plate is fixedly connected to a conductive column, the conductive column penetrates out below the sliding plate, the conductive wheel is arranged on the conductive column, and a conductive bolt is fixedly connected to the top of the sliding plate, and the conductive bolt is connected to the output cable of the wind power generation unit.

[0014] Furthermore, the top of the fixed cylinder is detachably connected to an annular guide rail, an output shaft is arranged inside the fixed cylinder, a conductive block is arranged inside the annular guide rail, the top of the output shaft is fixedly connected to the conductive block, a transverse bolt is arranged on the annular guide rail, and the transverse bolt passes through the conductive block and is threadedly connected to the inner side surface of the conductive ring.

[0015] Furthermore, an annular clamping block is fixedly connected to the top of the annular guide rail, a clamping groove adapted to the annular clamping block is arranged at the bottom of the sliding plate, and the clamping groove is nested on the annular clamping block.

[0016] Furthermore, a plurality of sliding plates are provided, the plurality of sliding plates are arranged around the bearing column, annular wires are arranged on the conductive bolts of the plurality of sliding plates, and the plurality of annular wires are all connected to the output cable of the wind power generation unit.

[0017] Furthermore, an annular groove is arranged at the bottom of the support plate, the top of the sliding plate is connected to the top surface of the annular groove through a connecting bolt, and one ends of the conductive bolt and the annular wire are arranged inside the annular groove.

[0018] Further, an insulating plate is provided below the support plate. The conductive bolt and the connecting bolt pass through the insulating plate, and the bearing column passes through the insulating plate. An installation groove is provided at the bottom of the insulating plate, and the sliding plate is arranged in the installation groove. The outer side surface of the insulating plate is fixedly connected with an insulating shell, and the insulating shell wraps the conductive wheel and the conductive ring.

[0019] Further, an installation hole is provided at the top of the pile body, the bottom of the central shaft is located in the installation hole, the central shaft is connected with a driving device for driving its rotation, a second wire is arranged in the central shaft, the top end of the second wire is connected with the circuit cable of the wind power generating set, the bottom end of the second wire is connected with a conductive sheet, the conductive sheet is fixedly connected to the outer side wall of the central shaft, a conductive sleeve is sleeved at the bottom of the central shaft, the conductive sheet is in contact conduction with the conductive sleeve, and the conductive sleeve is connected with a grounding cable.

[0020] The present invention has the following beneficial effects: During the rotation of the sliding plate of the present invention, the sliding plate always maintains contact conduction with the fixed cylinder, so as to output the current of the wind power generating set. The output cable between the sliding plate and the wind power generating set remains relatively stationary. Therefore, the present invention can effectively avoid the power-off or damage problems caused by cable torsion during the yaw process of the wind power generating set, greatly improving the rotatable angle of the wind power generating set, effectively solving the problem of yaw cable untwisting of the wind turbine, and eliminating the need for manual remote control or on-site control for yaw cable untwisting, realizing the full-automatic yaw control of the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the connection structure of the present invention;

[0023] Figure 3 is Figure 2 an enlarged schematic diagram at A in

[0024] Figure 4 is a three-dimensional schematic diagram of the sliding plate and the fixed cylinder;

[0025] In the figure: pile body 1, connection structure 2, wind power generating set 3, central shaft 4, support plate 5, insulating plate 6, sliding plate 7, fixed cylinder 8, output shaft 9, annular wire 10, conductive ring 11, base plate 101, bearing column 102, conductive sleeve 401, driving device 402, second wire 403, connecting bolt 701, conductive bolt 702, conductive plate 703, conductive column 704, conductive wheel 705, card slot 706, insulating shell 707, annular guide rail 801, conductive block 802, cross bolt 803. DETAILED DESCRIPTION OF THE INVENTION

[0026] Next, in combination with the Figures 1 - 4 , the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. If not specifically specified, the technical means used in the embodiments are conventional means well-known to those skilled in the art. Unless otherwise specified, "detachable connection" in the present invention can be achieved by means of bolts, buckles, etc.

[0027] Such as Figure 1 , Figure 2 , a wind turbine that can yaw fully automatically, includes a wind power generation unit 3, a saddle bridge, and a pile body 1. The wind power generation unit 3 is arranged on the saddle bridge, and the saddle bridge is installed on the top of the pile body 1 through a connection structure 2; the connection structure 2 includes a base plate 101, a bearing column 102, a support plate 5, a fixed cylinder 8, a central shaft 4, and a slide plate 7;

[0028] The top of the pile body 1 is fixedly connected to the base plate 101, and the top of the base plate 101 is fixedly connected to the bearing column 102; the fixed cylinder 8 is a hollow structure, which is sleeved on the bearing column 102, and the bottom of the fixed cylinder 8 is installed on the base plate 101. Specifically, the bottom of the fixed cylinder 8 is bolted to the base plate 101, and the slide plate 7 is rotatably arranged at the top of the fixed cylinder 8, and the rotation direction of the slide plate 7 is around the circumference of the bearing column 102; the central shaft 4 passes through the bearing column 102, and the top of the central shaft 4 is fixedly connected to the support plate 5; the top of the bearing column 102 is rotatably connected to the support plate 5, and both the slide plate 7 and the saddle bridge are fixedly connected to the support plate 5;

[0029] A conductive wheel 705 is arranged on the slide plate 7, and a conductive ring 11 is sleeved on the outer side of the fixed cylinder 8, and the conductive wheel 705 contacts the conductive ring 11 to achieve contact conduction;

[0030] The output cable of the wind turbine generator set 3 is electrically connected to the conductive wheel 705, and the loop cable of the wind turbine generator set 3 is electrically connected to the central shaft 4. The pile body 1, the wind turbine generator set 3 and the saddle bridge are prior arts. The pile body 1 provides a stable support foundation for the wind turbine generator set 3 and the saddle bridge, and the wind turbine generator set 3 is responsible for converting wind energy into electrical energy and is the core component of the wind power generation system. An output cable and a loop cable are connected to the generator of the existing wind turbine generator set 3. The output cable and the loop cable pass through the pile body 1 downward and then are connected to a converter, and the converter is connected to a power recovery system or a power grid to complete power recovery; wherein the output cable is the actual current output cable, and the loop cable is electrically connected to the converter or grounded to form a complete loop. Specifically, in the present invention, the output cable is electrically connected to the conductive wheel 705, and the conductive ring 11 can be electrically connected to the converter, the power recovery system or the power grid to realize the connection between the output cable and the converter.

[0031] In the present invention, the wind turbine generator set 3 and the saddle bridge are supported on the support plate 5, and the bearing column 102 transmits the gravity to the pile body 1 under force. The fixed cylinder 8 and the slide plate 7 are not subjected to the gravity of the wind turbine generator set 3. The central shaft 4, the bearing column 102, the fixed cylinder 8 and the pile body 1 are coaxially arranged. When the wind turbine generator set 3 yaws to face the wind, since the support plate 5 is connected to the saddle bridge, when the support plate 5 is driven, it drives the saddle bridge and the wind turbine generator set 3 to rotate around the axis of the pile body 1. At this time, the support plate 5 and the slide plate 7 rotate simultaneously, while the base plate 101 and the fixed cylinder 8 remain stationary. The connection between the support plate 5 and the saddle bridge is a prior art, such as bolt connection.

[0032] When the wind turbine generator set 3 yaws, in some embodiments, a driving device such as a motor can be used to drive the saddle bridge to rotate to align with the wind direction. During this process, since the slide plate 7, the support plate 5, the saddle bridge and the wind turbine generator set 3 are connected as a whole, the output cable of the wind turbine generator set 3 is relatively stationary with respect to the slide plate 7. During the yaw process, the output cable does not bend or wind, so the process of yaw cable uncoiling for the output cable is omitted. The slide plate 7 makes a circular motion around the fixed cylinder 8, and the power is exported in real time through the conductive wheel 705 and the conductive ring 11.

[0033] During the rotation of the skateboard 7 of the present invention, the conductive wheel 705 and the conductive ring 11 are always in contact and conductive state, so that the output cable is always in a conducting state, and can continuously output current to export electric power to the converter, the power recovery system or the power grid; during yawing, the output cable remains relatively stationary with the wind turbine 3 and the skateboard 7, and the conveying cable remains relatively stationary with the fixed cylinder 8 and the converter. Therefore, the present invention can effectively avoid the power-off or damage problems caused by cable torsion during the yawing of the wind turbine 3, greatly improve the rotatable angle of the wind turbine 3, can effectively solve the problem of yaw cable uncoiling of the wind turbine, and does not require manual remote control or on-site control for yaw cable uncoiling in practical applications, and can realize the full-automatic yaw control of the wind turbine.

[0034] As Figures 2 - 4 , a conductive plate 703 is fixedly connected inside the skateboard 7, a conductive column 704 is fixedly connected to the bottom of the conductive plate 703, the conductive column 704 passes through the lower part of the skateboard 7, a conductive wheel 705 is arranged on the conductive column 704, a conductive bolt 702 is fixedly connected to the top of the skateboard 7, the conductive bolt 702 is connected to the output cable of the wind turbine 3, and the output cable is conducted with the conductive ring 11 through the conductive bolt 702, the conductive plate 703, the conductive column 704, and the conductive wheel 705 in sequence.

[0035] In the present invention, the conductive bolt 702 is fixedly connected or threadedly connected to the conductive plate 703, and both are made of metal materials to achieve current conduction; the skateboard 7 is preferably made of an insulating material and is non-conductive with other components. An inner cavity is provided inside the skateboard 7, and the conductive plate 703 is fixedly arranged inside the inner cavity. The conductive column 704 is arranged downward, while the conductive bolt 702 is arranged upward. The conductive wheel 705 is made of metal and can achieve the conductive function. The outer side surface of the conductive ring 11 is conical, and the conductive wheel 705 is provided with an annular conical groove adapted to the conductive ring 11, so as to increase the contact area between the conductive ring 11 and the conductive wheel 705 and maintain the contact conduction stability during yaw rotation through conical limit. Through the structure of the conductive wheel 705 rotating around the conductive ring 11, the present invention enables the skateboard 7 to maintain a stable electrical connection state of the output cable during yaw rotation, ensuring the continuous power output of the wind turbine 3 without the need for yaw cable uncoiling.

[0036] Further, the top of the fixed cylinder 8 is detachably connected to an annular guide rail 801 through bolts, an output shaft 9 is arranged inside the fixed cylinder 8, a conductive block 802 is arranged inside the annular guide rail 801, the top of the output shaft 9 is fixedly connected to the conductive block 802, and a transverse bolt 803 is arranged on the annular guide rail 801, and the transverse bolt 803 passes through the conductive block 802 and is threadedly connected to the inner side surface of the conductive ring 11.

[0037] A plurality of through holes are provided on the barrel wall of the fixed barrel 8, and a plurality of output shafts 9 are respectively located in each through hole. The conductive block 802 is annular, and an annular groove body is provided at the bottom of the annular guide rail 801, and the conductive block 802 is located in the annular groove body. The transverse bolt 803 and the conductive block 802 function to transmit current, and the current is sequentially transmitted to the conductive ring 11, the transverse bolt 803, the conductive block 802, and the output shaft 9 through the conductive wheel 705. In the present invention, the output shaft 9 is fixedly connected to the conductive block 802, and the conductive block 802 is connected to the annular guide rail 801 through the transverse bolt 803. The transverse bolt 803 is horizontally arranged and the output shaft 9 is vertically arranged. Therefore, through the structure in which a plurality of output shafts 9 are arranged around the fixed barrel 8, the fixing effect on the annular guide rail 801 can be realized, and the function of dispersing current can also be achieved. Dispersing current can reduce the heat accumulation during current transmission and improve the power transmission efficiency. The bottom of each output shaft 9 of the present invention is connected to the aforementioned transmission cable through a cable connector. Specifically, when connecting, there are multiple transmission cables. One end of each transmission cable is respectively connected to the bottom of each output shaft 9, and after the plurality of transmission cables are bundled, the other end is finally connected to an inverter, a power recovery system or a power grid, realizing the power output function.

[0038] Further, an annular clamping block 804 is fixedly connected to the top of the annular guide rail 801, a clamping groove 706 adapted to the annular clamping block 804 is provided at the bottom of the sliding plate 7, and the clamping groove 706 is nested on the annular clamping block 804. The annular clamping block 804 and the clamping groove 706 cooperate to realize the constraint effect on the sliding plate 7.

[0039] Further, a plurality of sliding plates 7 are provided, and the plurality of sliding plates 7 are arranged around the bearing column 102. Annular wires 10 are provided on the conductive bolts 702 of the plurality of sliding plates 7. The annular wires 10 are arranged around the bearing column 102, and the annular wires 10 are connected to the output cables of the wind turbine generator 3. There are multiple output cables, and multiple bundles of annular wires 10 are provided. One end of each annular wire 10 is respectively wound on the plurality of conductive bolts 702, and the other end of each annular wire 10 passes through the support plate 5 and is respectively connected to each output cable. The part of the annular wire 10 passing through the support plate 5 is wrapped with a cable sleeve.

[0040] In the present invention, the sliding plate 7 and its connected components are preferably provided with at least two. The purpose is to relatively increase the contact area between the conductive wheel 705 and the conductive ring 11 through the arrangement of two or more sliding plates 7, thereby improving the stability of contact conduction and the efficiency of power transmission.

[0041] Furthermore, an annular groove is provided at the bottom of the support plate 5. The top of the sliding plate 7 is connected to the top surface of the annular groove through a connecting bolt 701, realizing the fixed connection between the sliding plate 7 and the support plate 5. One end of the conductive bolt 702 connected to the annular wire 10 is arranged in the annular groove. The annular groove wraps the connection end of the conductive bolt 702 and the annular wire 10 to play a protective role and avoid exposure.

[0042] Furthermore, an insulating plate 6 is provided below the support plate 5. The conductive bolt 702 and the connecting bolt 701 pass through the insulating plate 6, and the bearing column 102 passes through the insulating plate 6. An installation groove is provided at the bottom of the insulating plate 6, and the sliding plate 7 is arranged in the installation groove. The outer side surface of the insulating plate 6 is fixedly connected with an insulating housing 707, and the insulating housing 707 wraps the conductive wheel 705 and the conductive ring 11.

[0043] The insulating plate 6 is provided with a hollow part, and the bearing column 102 passes through the hollow part. Since the connecting bolt 701 passes through the insulating plate 6, the insulating plate 6 and the sliding plate 7 rotate together, which can ensure the rotational synchronism of multiple sliding plates 7. The insulating housing 707 is annular and wraps the conductive wheel 705 and the conductive ring 11 to avoid exposure.

[0044] Furthermore, an installation hole is provided at the top of the pile body 1. The bottom of the central shaft 4 is located in the installation hole. The top of the central shaft 4 is fixedly connected to the support plate 5. The central shaft 4 is connected with a driving device 402 for driving its rotation. The driving device 402 can be fixedly installed in the installation hole. The central shaft 4 is connected to the circuit cable of the wind turbine generator 3 through a second wire 403. A conductive sleeve 401 is sleeved at the bottom of the central shaft 4. The central shaft 4 and the conductive sleeve 401 can rotate relative to each other and keep the second wire 403 in contact and conduction with the conductive sleeve 401 during rotation. The conductive sleeve 401 is connected with a grounding cable.

[0045] Specifically, the central shaft 4 is of a hollow structure. A cable is arranged in the central shaft 4. The top of the cable is connected to the second wire 403, and the bottom of the cable is fixedly connected to a conductive sheet. The conductive sheet is located on the outer side surface of the central shaft 4. The conductive sheet is annular and wraps the central shaft 4. The conductive sleeve 401 is in contact and conduction with each conductive sheet. During the yawing process, the conductive sheet rotates relative to the conductive sleeve 401, and the conductive sleeve 401 is fixedly connected to the inner wall surface of the pile body 1. In the present invention, the conductive function is realized through the contact between the conductive sheet and the conductive sleeve 401, and both the conductive sheet and the conductive sleeve 401 are made of metal. The conductive sleeve 401 can be grounded through the grounding cable or connected to the negative pole in the power recovery system through the cable, making the present invention form a complete circuit. Since the circuit cable is relatively stationary with respect to the central shaft 4 and the wind turbine generator 3, and the grounding cable is relatively stationary with respect to the pile body 1, the circuit cable and the grounding cable can be kept from being twisted and wound during the yawing process.

[0046] The drive device 402 is a prior art, such as a motor and a gear, or a motor and a timing belt. When the wind turbine generator set 3 yaws to face the wind, the drive device 402 drives the central shaft 4 to rotate, and the central shaft 4 drives the support plate 5 and the wind turbine generator set 3 to rotate around the axis of the pile body 1.

[0047] The working process of the present invention is as follows:

[0048] When the wind turbine needs to yaw to face the wind, the drive device 402 starts and drives the central shaft 4 to start rotating. The rotation of the central shaft 4 drives the rotation of the support plate 5, and then the wind turbine generator set 3 and the saddle bridge together yaw and rotate around the axis of the pile body 1 to align with the wind direction. The alignment process and principle are prior arts. During this process, the sliding plate 7 rotates with the rotation of the support plate 5, but it remains relatively stationary with respect to the output cable of the wind turbine generator set 3, avoiding the twisting and winding of the output cable.

[0049] The conductive plate 703 and the conductive column 704 inside the sliding plate 7 ensure that current can form a stable electrical connection through the conductive wheel 705 and the conductive ring 11 on the outer side of the fixed cylinder 8. This design ensures that during the yaw process of the wind turbine generator set 3, the current can be continuously and stably output without being affected by the yaw action.

[0050] At the same time, the setting of the annular guide rail 801 and the conductive block 802 further enhances the stability of current transmission. The through bolt 803 passes through the conductive block 802 and is threadedly connected to the inner side of the conductive ring 11. The conductive wheel 705 transmits current through the conductive ring 11, the through bolt 803, the conductive block 802 and the output shaft 9 in sequence; the output shaft 9 finally outputs the power to the converter, the power recovery system or the power grid through the transmission cable. On the other hand, through the grounding line or the negative return circuit composed of the loop cable, the conductive sheet, the conductive sleeve 401 and the grounding cable, the present invention forms a complete current transmission path, ensuring efficient conduction of current and avoiding the twisting and winding of the loop cable.

[0051] In addition, the setting of the insulating plate 6 and the insulating housing 707 effectively protects the circuit system and prevents the risk of current leakage and short circuit. The installation groove at the bottom of the insulating plate 6 firmly fixes the sliding plate 7, while the insulating housing 707 wraps the conductive wheel 705 and the conductive ring 11, providing additional safety protection.

[0052] During the entire yaw process, the wind turbine generator set 3 can continuously and stably generate electricity and output the electric energy to the power grid through the connection structure 2. This innovative design greatly increases the rotatable angle of the wind turbine generator set 3, effectively solves the problem of yaw cable uncoiling of the wind turbine, and in practical applications, there is no need for manual remote control or on-site control for yaw cable uncoiling, realizing the full-automatic yaw control of the wind turbine.

[0053] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, variations, modifications, and substitutions made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A wind turbine capable of fully automatic yaw, comprising a wind turbine generator set (3), a saddle bridge and a pile body (1), wherein the wind turbine generator set (3) is mounted on the saddle bridge, and is characterized in that: The saddle bridge is installed on the top of the pile body (1) via a connection structure (2); the connection structure (2) comprises a base plate (101), a bearing column (102), a support plate (5), a fixed cylinder (8), a central axis (4) and a slide plate (7); The top of the pile body (1) is fixedly connected to the base plate (101), and the top of the base plate (101) is fixedly connected to the bearing column (102); the fixed cylinder (8) is a hollow structure, the fixed cylinder (8) is sleeved on the bearing column (102), the bottom of the fixed cylinder (8) is installed on the base plate (101), the top of the fixed cylinder (8) is rotatably provided with the slide plate (7), and the rotation direction of the slide plate (7) is around the circumference of the bearing column (102); the central axis (4) passes through the bearing column (102), and the top of the central axis (4) is fixedly connected to the support plate (5); the top of the bearing column (102) is rotatably connected to the support plate (5), and the slide plate (7) and the saddle bridge are both fixedly connected to the support plate (5); The slide plate (7) is provided with a conductive wheel (705), the outer side surface of the fixed cylinder (8) is sleeved with a conductive ring (11), and the conductive wheel (705) contacts the conductive ring (11) to achieve contact and conduction; The output cable of the wind generator set (3) is electrically connected to the conductive wheel (705), and the return cable of the wind generator set (3) is electrically connected to the central shaft (4); A mounting hole is arranged at the top of the pile body (1), the bottom of the middle shaft (4) is located in the mounting hole, the middle shaft (4) is connected to a driving device (402) for driving the middle shaft (4) to rotate, a second wire (403) is arranged in the middle shaft (4), the top end of the second wire (403) is connected to a return cable of the wind turbine generator set (3), the bottom end of the second wire (403) is connected to a conductive sheet, the conductive sheet is fixedly connected to the outer wall of the middle shaft (4), a conductive sleeve (401) is sleeved at the bottom of the middle shaft (4), the conductive sheet is in contact and conduction with the conductive sleeve (401), and the conductive sleeve (401) is connected to a grounding cable.

2. A wind turbine capable of fully automatic yaw according to claim 1, characterized in that: The slide plate (7) is fixedly connected to a conductive plate (703) inside, the bottom of the conductive plate (703) is fixedly connected to a conductive column (704), the conductive column (704) passes through the bottom of the slide plate (7), the conductive wheel (705) is arranged on the conductive column (704), and the top of the slide plate (7) is fixedly connected to a conductive bolt (702), and the conductive bolt (702) is connected to an output cable of the wind turbine generator set (3).

3. A wind turbine capable of fully automatic yaw according to claim 2, characterized in that: The top of the fixed cylinder (8) is detachably connected to the annular guide rail (801); an output shaft (9) is arranged in the fixed cylinder (8); a conductive block (802) is arranged in the annular guide rail (801); the top of the output shaft (9) is fixedly connected to the conductive block (802); a transverse bolt (803) is arranged on the annular guide rail (801); the transverse bolt (803) passes through the conductive block (802) and is threadedly connected to the inner side surface of the conductive ring (11).

4. A wind turbine capable of fully automatic yaw according to claim 3, characterized in that: The top of the annular guide rail (801) is fixedly connected to an annular clamping block (804), and the bottom of the slide plate (7) is provided with a clamping groove (706) adapted to the annular clamping block (804), and the clamping groove (706) is nested on the annular clamping block (804).

5. A wind turbine capable of fully automatic yaw according to any one of claims 2 to 4, characterized in that: A plurality of the slide plates (7) are provided, and the plurality of the slide plates (7) are arranged around the bearing column (102); a ring-shaped conductor (10) is provided on each of the conductive bolts (702) of the plurality of the slide plates (7); and each of the plurality of the ring-shaped conductors (10) is connected to an output cable of the wind turbine generator set (3).

6. A wind turbine capable of fully automatic yaw according to claim 5, characterized in that: The bottom of the support plate (5) is provided with an annular groove, the top of the slide plate (7) is connected to the top surface of the annular groove via a connecting bolt (701), and the conductive bolt (702) and one end of the annular wire (10) are arranged in the annular groove.

7. A wind turbine capable of fully automatic yaw according to claim 6, characterized in that: An insulating plate (6) is arranged below the support plate (5), the conductive bolts (702) and the connecting bolts (701) pass through the insulating plate (6), the bearing column (102) passes through the insulating plate (6), a mounting groove is arranged at the bottom of the insulating plate (6), and the sliding plate (7) is arranged in the mounting groove; The outer side surface of the insulating plate (6) is fixedly connected to an insulating shell (707), and the insulating shell (707) wraps around the conductive wheel (705) and the conductive ring (11).

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