Wind power generation equipment and wind power generation systems

Abstract

This application provides a wind power generation device and a wind power generation system, relating to the field of wind power generation technology. The wind power generation device includes a tower, a nacelle, a rotor, a drive unit, a transmission cable, and an anti-winding device. The top of the tower has a rotating support surface; the nacelle is rotatably mounted on the rotating support surface about a vertical axis; the rotor is rotatably mounted on the nacelle; the drive unit is mounted on the tower and drives the nacelle to rotate relative to the tower; the transmission cable electrically connects the tower and the nacelle; the anti-winding device acts on the transmission cable and is adapted to restrain the torsion of the transmission cable. This wind power generation device reduces the possibility of the transmission cable becoming entangled during the rotation of the nacelle, reduces the risk of cable wear and breakage, and improves operational safety and reliability.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a wind power generation device and a wind power generation system. Background Technology

[0002] During operation, the nacelle of a wind turbine needs to rotate around its vertical axis according to changes in wind direction to adjust the angle of the rotor against the wind, thereby maximizing wind energy capture.

[0003] However, the rotation of the nacelle can cause the transmission cables connecting the tower and the nacelle to become entangled, which may lead to safety hazards such as cable wear, breakage, or even short circuits over time. Utility Model Content

[0004] In view of the above problems, this application provides a wind power generation device and a wind power generation system that reduces the possibility of transmission cables getting tangled during nacelle rotation, reduces the risk of cable wear and breakage, and improves operational safety and reliability.

[0005] This application provides a wind power generation device, including:

[0006] The tower body has a rotating support surface at its top.

[0007] The cabin is rotatably mounted on the rotating support surface about a vertical axis;

[0008] The impeller is rotatably mounted in the nacelle;

[0009] A drive unit is located on the tower body and is in transmission cooperation with the nacelle; the drive unit is used to drive the nacelle to rotate relative to the tower body.

[0010] A transmission cable electrically connects the tower body and the cabin;

[0011] An anti-winding device, which acts on the transmission cable and is adapted to restrain the torsion of the transmission cable.

[0012] In one possible implementation, the anti-entanglement device includes a sleeve fixedly connected to the cabin and rotating with the cabin, the sleeve being fitted over the outside of the transmission cable.

[0013] In one possible implementation, the transmission cable includes multiple transmission lines.

[0014] The anti-tangling device further includes a splitter, which is disposed inside the sleeve. The splitter and the sleeve together define a plurality of through holes corresponding to the transmission line, and the transmission line passes through the corresponding through holes.

[0015] In one possible implementation, the inner wall of the threading hole is provided with a groove surrounding the threading hole.

[0016] The anti-winding device further includes: multiple balls, which are rotatably disposed in the groove and adhere to the outer wall of the transmission line.

[0017] In one possible implementation, the transmission cable includes multiple transmission lines, including a first cable located on the tower and a second cable located in the cabin.

[0018] The anti-tangle device also includes a cable connector, which connects the first cable and the second cable respectively, so that the first cable and the second cable are rotatably connected.

[0019] In one possible implementation, the anti-tangling device further includes a winding assembly disposed within the tower body, on which the transmission cable is retractably wound.

[0020] In one possible implementation, the winding assembly includes:

[0021] A winding roller on which the transmission cable is wound;

[0022] An elastic preload, acting on the winding roller, is adapted to preload the winding roller to apply force to the transmission cable.

[0023] In one possible implementation, the winding assembly further includes a detection element communicatively connected to the elastic pretensioner, adapted to monitor the tautness of the transmission cable and adjust the pretension value of the elastic pretensioner.

[0024] In one possible implementation, the wind power generation equipment also includes:

[0025] A wind direction sensor, used to detect wind direction;

[0026] A control device is electrically connected to the wind direction sensor and the drive device, respectively, and the control device is configured to control the movement of the drive device according to the detection result of the wind direction sensor;

[0027] And / or, a power generation device, which is driven to the impeller shaft to generate electricity under the drive of the impeller, and the transmission cable is electrically connected to the power generation device.

[0028] This application also provides a wind power generation system, including: an energy storage device and the aforementioned wind power generation device, wherein the wind power generation device and the energy storage device are connected through the transmission cable, and the electrical energy generated by the wind power generation device is transmitted to the energy storage device for energy storage through the transmission cable.

[0029] In the wind power generation equipment and system of this application, when the wind direction changes, the drive device drives the nacelle to rotate around the vertical axis through a gear transmission mechanism. The transmission cable rotates synchronously when the nacelle rotates. The design of the anti-winding device controls the torsion of the transmission cable within a safe range, reducing the probability of wear on the sheath of the transmission cable. In addition, the synergistic effect of the rotating support surface and the drive device ensures the smoothness of the nacelle's rotation, avoids the transmission cable from being subjected to sudden torsional loads, reduces the possibility of the transmission cable getting tangled due to the rotation of the nacelle, reduces the risk of cable wear and breakage, and improves the safety and reliability of equipment operation. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a wind power generation device according to an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the structure of the sleeve of the anti-winding device according to an embodiment of this application;

[0033] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0034] Figure 4 This is a schematic diagram of the winding assembly of the anti-winding device according to an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the cable connector of the anti-winding device according to an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100-Tower body;

[0038] 200-cabin;

[0039] 300-Impeller;

[0040] 400 - Transmission cable; 410 - Transmission line; 411 - First cable; 412 - Second cable;

[0041] 500 - Anti-winding device; 510 - Sleeve; 520 - Divider; 521 - Groove; 530 - Ball bearing; 540 - Winding assembly; 541 - Winding roller; 542 - Detection piece; 550 - Cable connector. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] During operation, the nacelle of a wind turbine needs to rotate around its vertical axis according to changes in wind direction to adjust the angle of the rotor against the wind, thereby maximizing wind energy capture.

[0044] However, in traditional structures, the power transmission cables connecting the tower and the nacelle will twist circumferentially as the nacelle rotates. Over long-term operation, cable entanglement is likely to occur, which can easily lead to faults such as cable sheath wear and internal wire breakage, seriously affecting the stability of equipment operation and increasing maintenance costs.

[0045] In view of this, this application provides a wind power generation device and a wind power generation system. When the wind direction changes, the drive device drives the nacelle to rotate around the vertical axis through a gear transmission mechanism. The transmission cable rotates synchronously when the nacelle rotates. The design of the anti-winding device controls the torsion of the transmission cable within a safe range, reducing the probability of wear on the sheath of the transmission cable. In addition, the synergistic effect of the rotating support surface and the drive device ensures the smoothness of the nacelle's rotation, avoids the transmission cable from being subjected to sudden torsional loads, reduces the possibility of the transmission cable getting tangled due to the rotation of the nacelle, reduces the risk of cable wear and breakage, and improves the safety and reliability of equipment operation.

[0046] The following is combined Figures 1-5 This application describes a wind power generation device according to a first aspect of the present application.

[0047] refer to Figure 1 and Figure 2 The wind power generation equipment in this embodiment includes a tower 100, a nacelle 200, an impeller 300, a drive unit, a transmission cable 400, and an anti-winding device 500.

[0048] The top of the tower body 100 has a rotating support surface; the nacelle 200 is rotatably mounted on the rotating support surface around a vertical axis; the impeller 300 is rotatably mounted on the nacelle 200; the drive device is mounted on the tower body 100 and drives the nacelle 200, and the drive device is used to drive the nacelle 200 to rotate relative to the tower body 100; the transmission cable 400 is electrically connected to the tower body 100 and the nacelle 200; the anti-winding device 500 acts on the transmission cable 400 and is suitable for preventing the transmission cable 400 from excessive twisting through physical constraints.

[0049] The rotating support surface is the contact interface that bears the rotational motion of the cabin 200. Optionally, the rotating support surface can be designed with an annular guide rail and a ball bearing 530 structure to provide stable support for the rotation of the cabin 200.

[0050] The anti-winding device 500 may include a guiding mechanism acting on the movement path of the transmission cable 400. Optionally, a sleeve 510 structure may be used to sleeve the outside of the transmission cable 400 to prevent winding by limiting the radial displacement of the transmission cable 400.

[0051] Specifically, when the wind direction changes, the drive unit drives the nacelle 200 to rotate around the vertical axis through the gear transmission mechanism. The transmission cable 400 rotates synchronously when the nacelle 200 rotates. The design of the anti-winding device 500 controls the torsion of the transmission cable 400 within a safe range, reducing the probability of wear on the sheath of the transmission cable 400. In addition, the synergistic effect of the rotating support surface and the drive unit ensures the smoothness of the rotation of the nacelle 200, avoids the transmission cable 400 from being subjected to sudden torsional loads, reduces the possibility of the transmission cable 400 getting tangled due to the rotation of the nacelle 200, reduces the risk of cable wear and breakage, and improves the safety and reliability of equipment operation.

[0052] In one embodiment, combined with Figures 1 to 3 The anti-winding device 500 includes a sleeve 510, which is fixedly connected to the cabin 200 and rotates with the cabin 200. The sleeve 510 is sleeved on the outside of the transmission cable 400.

[0053] The sleeve 510 can be a hollow tubular structure used to wrap and protect the transmission cable 400, preventing the transmission cable 400 from directly contacting and rubbing against the external structure during the rotation of the cabin 200. The sleeve 510 is fixedly connected to the cabin 200 to ensure its responsiveness, so that the transmission cable 400 is always inside the sleeve 510 during rotation, reducing torsional stress.

[0054] Specifically, the sleeve 510 can be fixed to the bottom of the nacelle 200 by bolts or welding, and rotates around its vertical axis. When the transmission cable 400 extends from the tower 100 to the nacelle 200, it is completely wrapped inside the sleeve 510. A gap can be maintained between the sleeve 510 and the transmission cable 400 to avoid rigid contact. In this way, the transmission cable 400 is effectively prevented from getting tangled or worn during the continuous rotation of the nacelle 200, and the frequency of downtime maintenance due to cable failure is reduced.

[0055] In one embodiment, combined with Figures 1 to 3 The transmission cable 400 includes multiple transmission lines 410, and the anti-tangle device 500 also includes a splitter 520. The splitter 520 is disposed inside the sleeve 510. The splitter 520 and the sleeve 510 together define multiple through holes corresponding to the transmission lines 410, and the transmission lines 410 pass through the corresponding through holes.

[0056] The splitter 520 can be a structural component used to separate the transmission lines 410. Specifically, it can be implemented using a rigid bracket with a porous structure. By independently confining different transmission lines 410 within their respective channels, it prevents the cables from contacting each other. The through hole can be a through hole for a single transmission line 410 to pass through, which restricts the range of motion of the cable and prevents the cable from shifting or tangling during rotation.

[0057] Specifically, when the nacelle 200 rotates with the wind direction, the sleeve 510 drives the splitter 520 to rotate synchronously. Multiple through-holes inside the splitter 520 divide the sleeve 510 into multiple independent wiring paths, allowing each transmission line 410 to move within the space defined by its corresponding through-hole. This design ensures that each transmission line 410 maintains a fixed relative position during rotation, preventing cross-twisting even if twisting occurs.

[0058] By designing the splitter 520, physical isolation of multiple transmission lines 410 is achieved, reducing frictional losses between transmission lines 410, extending the service life of transmission lines 410, and avoiding the risk of signal interference or power transmission interruption caused by cable entanglement.

[0059] In one embodiment, combined with Figures 1 to 3 The inner wall of the wire hole is provided with a groove 521 surrounding the wire hole. The anti-winding device 500 also includes multiple balls 530. The multiple balls 530 are rotatably disposed in the groove 521 and fit against the outer wall of the transmission line 410.

[0060] The groove 521 can be an annular groove provided on the inner wall of the wire hole, providing a rolling track for the ball 530. The ball 530 can be a spherical rolling element, which reduces the frictional resistance between the transmission line 410 and the wire hole through rolling contact.

[0061] Specifically, when the nacelle 200 rotates the sleeve 510, the transmission line 410 undergoes relative motion due to its connection with the tower body 100 at its fixed end. At this time, the ball bearings 530 roll within the groove 521, creating rolling friction between the transmission line 410 and the threaded hole. As a result, the vertical position of the transmission line 410 can be freely adjusted during the rotation of the nacelle 200, avoiding surface wear or internal breakage caused by friction.

[0062] By cooperating with the ball bearing 530 and the groove 521, the sliding friction of the transmission line 410 is converted into rolling friction, which significantly reduces the motion resistance, reduces the frictional resistance and wear risk of the transmission line 410 during the rotation of the nacelle 200, and improves the durability of the transmission cable 400, thereby ensuring the stability of power transmission and the reliability of long-term equipment operation.

[0063] In one embodiment, combined with Figure 2 and Figure 5 The transmission cable 400 includes multiple transmission lines 410. Each transmission line 410 includes a first cable 411 located on the tower body 100 and a second cable 412 located on the cabin 200. The anti-tangle device 500 also includes a cable connector 550, which connects the first cable 411 and the second cable 412 respectively, so that the first cable 411 and the second cable 412 are rotatably connected.

[0064] The cable connector 550 can be a mechanical structure used to realize a rotatable electrical connection between the first cable 411 and the second cable 412. Optionally, the cable connector 550 can be implemented by a rotary joint or a conductive slip ring, and a conductive channel can be provided inside to maintain the continuity of current transmission.

[0065] Optionally, the end of the first cable 411 can be fixed to the stationary end of the connector, and the end of the second cable 412 can be fixed to the rotating end of the connector. When the nacelle 200 is controlled by the drive device to rotate around the vertical axis, the rotating end rotates synchronously with the nacelle 200, while the stationary end remains relatively fixed to the tower body 100. During this process, the conductive channel inside the connector maintains the electrical connection between the first cable 411 and the second cable 412 through sliding contact or rolling contact, while allowing relative rotation between the two at the interface.

[0066] By setting up cable connectors 550 to connect the first cable 411 and the second cable 412 respectively, relative rotation between the two is achieved. This solves the problem of entanglement caused by the accumulation of torsion in the transmission cable 400 during the rotation of the cabin 200, and reduces the risk of internal wire breakage due to excessive bending of the transmission cable 400.

[0067] In one embodiment, combined with Figure 1 and Figure 4The anti-winding device 500 also includes a winding assembly 540, which is located inside the tower body 100, and the transmission cable 400 is retractably wound onto the winding assembly 540.

[0068] Optionally, the winding assembly 540 can be applied to either the first cable 411 or the second cable 412.

[0069] The winding assembly 540 can be a mechanical structure for winding and unwinding the transmission cable 400. Optionally, the winding assembly 540 can be implemented with a structure having a winding roller 541 and an elastic pretensioner. The winding roller 541 is used to carry the winding of the transmission cable 400, and the elastic pretensioner is used to maintain the tension of the transmission cable 400.

[0070] Specifically, the transmission cable 400 is wound and unwound inside the tower body 100 via the winding assembly 540. When the nacelle 200 rotates with the wind direction, the transmission cable 400 can be released or retracted with the rotation of the winding roller 541. The elastic pretensioner maintains the transmission cable 400 in a taut state through pretension force to avoid tangling due to slack.

[0071] The timely winding and unwinding of the transmission cable 400 is achieved by designing the winding assembly 540, which enables the length of the transmission cable 400 to be automatically adjusted with rotation, avoiding the tangling of the transmission cable 400 that may occur due to the rotation of the cabin 200, and extending the service life of the transmission cable 400. In addition, the stability of power transmission is ensured by dynamically adjusting the tension of the transmission cable 400.

[0072] In one embodiment, combined with Figure 4 The winding assembly 540 includes a winding roller 541 and an elastic pretensioner. The transmission cable 400 is wound on the winding roller 541. The elastic pretensioner acts on the winding roller 541 and is adapted to pretension the winding roller 541 to apply a force to the transmission cable 400.

[0073] The winding roller 541 can be a component used to carry and retract the transmission cable 400. Optionally, the winding roller 541 can be a cylindrical rotating component with anti-slip textures on its surface to increase friction with the transmission cable 400. Optionally, the winding roller can be connected to a support inside the tower body 100 via bearings, allowing it to rotate about its own axis.

[0074] The elastic pretensioner can be an elastic element that provides pretension force. Optionally, the elastic pretensioner can be a helical spring or a torsion spring, which keeps the transmission cable 400 in a preset tension state by applying a reverse torque to the winding roller 541.

[0075] Specifically, when the nacelle 200 rotates with the wind direction, the transmission cable 400 can be unwound or wound on the winding roller 541. The elastic pretensioner causes the winding roller 541 to generate a torque opposite to the direction of movement of the transmission cable 400 through the pretensioning force, thereby keeping the transmission cable 400 in a moderately taut state.

[0076] Through the synergistic effect of the elastic pretensioner and the winding roller 541, the tension of the transmission cable 400 can be adjusted during the winding and unwinding process, avoiding the problem of twisting and entanglement of the transmission cable 400 due to sudden tension changes during the rotation of the cabin 200, and reducing the risk of wear on the outer sheath and breakage of the internal wires of the transmission cable 400.

[0077] In one embodiment, combined with Figure 4 The winding assembly 540 also includes a detection element 542, which is communicatively connected to the elastic pretensioner and is adapted to monitor the tautness of the transmission cable 400 and adjust the pretension value of the elastic pretensioner.

[0078] The detection element 542 can be a sensor used to sense the tension of the transmission cable 400 in real time. Optionally, the detection element 542 can be a tension sensor, which can determine whether the transmission cable 400 is in a taut or slack state by detecting the deformation or stress state of the transmission cable 400.

[0079] Specifically, the detection element 542 can be installed in the contact area between the winding roller 541 and the transmission cable 400. It can collect deformation data or force signals of the transmission cable 400 in real time. When the transmission cable 400 may become loose due to the rotation of the machine nacelle 200, the detection element 542 transmits the signal to the elastic pretensioner, which increases the pretension force to tighten the transmission cable 400 by the winding roller 541. When the transmission cable 400 is overly taut, the detection element 542 transmits the signal to the elastic pretensioner to reduce the pretension force on the winding roller 541, so as to avoid the transmission cable 400 being subjected to excessive tension.

[0080] Through the linkage control of the detection component 542 and the elastic pretensioner, the tension of the transmission cable 400 is adaptively adjusted, which effectively solves the tension imbalance that may be caused by repeated twisting of the transmission cable 400 in wind power generation equipment. It also avoids the transmission cable 400 from tangling due to excessive looseness or breaking due to excessive tension, thereby improving the operational stability of the equipment and extending the service life of the transmission cable 400.

[0081] In one embodiment (not shown in the figures), the wind power generation equipment of this application further includes a wind direction sensor and a control device. The wind direction sensor is used to detect the wind direction, and the control device is electrically connected to the wind direction sensor and the drive device respectively. The control device is configured to control the movement of the drive device according to the detection result of the wind direction sensor.

[0082] Among them, the wind direction sensor can be a device used to detect the environmental wind direction in real time. Optionally, the wind direction sensor can be an ultrasonic wind direction sensor, a mechanical wind vane, etc., to provide a basis for the cabin to turn 200 degrees by acquiring wind direction data.

[0083] The wind direction sensor can be installed on the top of the nacelle 200 or the tower 100 to detect the current wind direction and transmit the signal to the control device. The control device determines the rotation angle that the nacelle 200 needs to be adjusted based on the signal and sends a command to the drive device to drive the nacelle 200 to rotate around the vertical axis to the target position.

[0084] It is evident that the design of the wind direction sensor and control device enables real-time wind direction detection and accurate steering of wind power generation equipment, thereby improving power generation efficiency.

[0085] In one embodiment (not shown in the figure), the wind power generation equipment also includes a power generation device, which is drivenly connected to the wheel shaft of the rotor 300 to generate electricity under the drive of the rotor 300, and the transmission cable 400 is electrically connected to the power generation device.

[0086] The power generation device can be a device that converts the mechanical energy of the impeller 300 into electrical energy. Specifically, it can be implemented by a permanent magnet synchronous generator or a doubly fed asynchronous generator. Energy conversion is achieved through a wheel-shaft drive connection, and electrical energy is output through a transmission cable 400.

[0087] The power generation device is linked to the impeller 300 via the wheel shaft to convert rotational kinetic energy into electrical energy, which is then transmitted to energy storage equipment or the power grid via the transmission cable 400. By designing the aforementioned anti-winding device 500, the transmission cable 400 is prevented from twisting when the nacelle 200 rotates, ensuring stable power transmission and improving the operational reliability of the wind power generation equipment.

[0088] This application embodiment also provides a wind power generation system, which includes an energy storage device and the aforementioned wind power generation device. The wind power generation device and the energy storage device are connected by a transmission cable 400, and the electrical energy generated by the wind power generation device is transmitted to the energy storage device for energy storage through the transmission cable 400.

[0089] Optionally, energy storage devices may include lithium-ion battery packs, etc.

[0090] The wind power generation system of this application embodiment, by designing the above-mentioned wind power generation equipment, improves the safety and service life of the transmission cable 400, ensures the reliability of the power transmission path, reduces the frequency of downtime maintenance that may be caused by the failure of the transmission cable 400, and ensures the stability of power generation.

[0091] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0092] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0093] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0094] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A wind power plant, characterized in that include: The tower body (100) has a rotating support surface at its top. The nacelle (200) is rotatably disposed on the rotating support surface about a vertical axis; An impeller (300) is rotatably mounted on the nacelle (200). A drive device is provided on the tower body (100) and is in transmission cooperation with the nacelle (200). The drive device is used to drive the nacelle (200) to rotate relative to the tower body (100). A transmission cable (400) electrically connects the tower body (100) and the cabin (200), the transmission cable (400) including a plurality of transmission lines (410). An anti-winding device (500) acts on the transmission cable (400) and is adapted to restrain the torsion of the transmission cable (400); The anti-winding device (500) includes multiple balls (530), which are rotatably disposed in the grooves (521) within the anti-winding device (500) and adhere to the outer wall of the transmission line (410).

2. A wind power plant according to claim 1, characterised in that The anti-winding device (500) includes a sleeve (510), which is fixedly connected to the cabin (200) and rotates with the cabin (200). The sleeve (510) is sleeved on the outside of the transmission cable (400).

3. A wind power plant according to claim 2, characterised in that The anti-winding device (500) further includes a splitter (520), which is disposed inside the sleeve (510). The splitter (520) and the sleeve (510) together define a plurality of through holes corresponding to the transmission line (410), and the transmission line (410) passes through the corresponding through holes.

4. A wind power plant according to claim 3, characterised in that The inner wall of the threading hole is provided with the groove (521), and the groove (521) is arranged around the threading hole.

5. A wind power plant according to claim 1, characterised in that The transmission line (410) includes a first cable (411) disposed on the tower body (100) and a second cable (412) disposed on the cabin (200). The anti-tangle device (500) further includes a cable connector (550) which connects the first cable (411) and the second cable (412) respectively, so that the first cable (411) and the second cable (412) are rotatably connected.

6. A wind power plant according to claim 1, characterised in that The anti-winding device (500) further includes a winding assembly (540) disposed inside the tower body (100), and the transmission cable (400) is retractably wound on the winding assembly (540).

7. A wind power plant according to claim 6, characterised in that The winding assembly (540) includes: The transmission cable (400) is wound around the winding roller (541). An elastic preload, acting on the winding roller (541), is adapted to preload the winding roller (541) to apply force to the transmission cable (400).

8. A wind power plant according to claim 7, characterised in that The winding assembly (540) further includes a detection element (542) which is communicatively connected to the elastic pretensioner and is adapted to monitor the tautness of the transmission cable (400) and adjust the pretension value of the elastic pretensioner.

9. A wind power plant according to claim 1, characterised in that Also includes: A wind direction sensor, used to detect wind direction; A control device is electrically connected to the wind direction sensor and the drive device, respectively, and the control device is configured to control the movement of the drive device according to the detection result of the wind direction sensor; And / or, a power generation device, which is drivenly connected to the impeller (300) to generate electricity under the drive of the impeller (300), and the transmission cable (400) is electrically connected to the power generation device.

10. A wind power system characterized by include: Energy storage devices; The wind power generation equipment according to any one of claims 1-9, wherein the wind power generation equipment and the energy storage equipment are connected through the transmission cable (400), and the electrical energy generated by the wind power generation equipment is transmitted to the energy storage equipment for energy storage through the transmission cable (400).

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