A conductive rail and monitoring device for a wind turbine generator set

Abstract

This invention provides a conductive rail and monitoring device for a wind turbine generator set. The conductive rail is installed inside the wind turbine tower and distributed along its height. The outer wall of the conductive rail is fitted with a support portion that is fixedly connected to the inner wall of the wind turbine tower. The support portion includes a connecting frame that sleeves onto the side of the conductive rail. This embodiment effectively absorbs impact loads from wind swaying, temperature changes, and mechanical vibrations through the sliding fit between the outer cylinder and the inner lining cylinder in the support portion and the elastic buffering effect of the rubber sleeve, reducing the risk of conductive rail displacement and deformation, and improving the stability of its connection with the wind turbine tower. The reinforcement portion further strengthens the installation of the conductive rail through a U-frame with a clamp structure and adjustable turnbuckles. The color coating on the reference strip matches the corresponding coating on the conductive rail surface, allowing for direct monitoring of minute displacements of the conductive rail, facilitating rapid anomaly detection by maintenance personnel.

Description

Technical Field

[0001] This invention relates to the field of conductive rail technology, and in particular to a conductive rail and monitoring device for a wind turbine generator set. Background Technology

[0002] Wind turbines are crucial devices that convert wind energy into electricity. They use wind power to drive blades to rotate, which, after being accelerated by a gearbox, drives a generator to produce electricity. They are widely used in the renewable energy sector. With the increasing global demand for clean energy, wind turbine technology continues to advance. Optimization in blade design, materials science, and control systems has driven continuous increases in rated power, resulting in higher power generation efficiency and greater environmental benefits.

[0003] However, as the power of wind turbines increases, the conductor rail, a key component, also gradually increases in size and weight to carry greater current and meet electrical performance requirements. During long-term operation, due to the combined effects of wind swaying, temperature changes, and mechanical vibrations, the conductor rail may experience displacement, deformation, and other safety hazards. These problems not only affect the stability of the connection between the conductor rail and the tower but may also cause poor electrical contact, localized overheating, or even the risk of electric arcing, ultimately leading to a decrease in the overall operational safety of the turbine and affecting the continuous and reliable power supply of the wind farm. Summary of the Invention

[0004] The summary section of this invention provides a brief overview of the concepts, which will be described in detail in the detailed description section that follows. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] This invention provides a conductive rail and monitoring device for a wind turbine generator set to solve the technical problems mentioned in the background section above.

[0006] In a first aspect, the present invention provides a conductive rail for a wind turbine generator set, comprising a conductive rail assembled inside a wind turbine tower and distributed along its height direction, a support portion fixedly connected to the inner wall of the wind turbine tower on the outer wall of the conductive rail, the support portion including a connecting frame sleeved on the side of the conductive rail, an outer cylinder assembled on the side of the connecting frame away from the conductive rail, an inner liner fixed to the inner wall of the wind turbine tower being slidably fitted inside the outer cylinder, a load-bearing shaft extending into the inner liner being fixed at the axial position inside the outer cylinder, the outer wall of the load-bearing shaft and the outer cylinder forming a unit buffer space, and a rubber cylinder for elastic protection being fitted inside the unit buffer space, a positioning ring for positioning the inner liner being bolted to the end face of the outer cylinder, and a reinforcing portion covering the outside of the conductive rail being connected to the outer wall of the inner liner.

[0007] In a second aspect, the present invention also provides a monitoring device for any embodiment of the first aspect, comprising a detection box, the detection box being mounted on the side of the joint of two conductive rails, the detection box comprising a current sensor, a voltage sensor, a temperature sensor and a vibration sensor mounted on the surface.

[0008] The above embodiments of the present invention have the following beneficial effects: Through the sliding fit between the outer cylinder and the inner liner of the support section and the elastic buffering effect of the rubber cylinder, the impact load caused by wind swaying, temperature changes and mechanical vibration is effectively absorbed, reducing the risk of displacement and deformation of the conductive rail and improving the stability of its connection with the wind turbine tower.

[0009] The reinforcement section further strengthens the installation of the conductive rail through the U-frame of the clamp structure and the adjustable turnbuckle. The color coating on the reference strip matches the corresponding coating on the surface of the conductive rail, which can intuitively monitor the minute displacement of the conductive rail, making it easy for maintenance personnel to quickly detect abnormalities.

[0010] In addition, the monitoring device integrates current, voltage, temperature, and vibration sensors to collect data in real time and transmit it to a remote monitoring center via a communication module. This enables dynamic monitoring of the conductive rail's operating status, providing timely warnings of potential hazards such as poor electrical contact and localized overheating, ensuring the safe and reliable operation of the wind turbine generator. Furthermore, the components adopt a detachable assembly structure, facilitating later maintenance and component replacement, reducing operating costs, and extending the service life of the conductive rail and monitoring device. Attached Figure Description

[0011] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of a conductive rail of a wind turbine generator set according to an embodiment of the present invention. Figure 2 This is a three-dimensional structural schematic diagram of an embodiment of the detection box of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of an embodiment of the support portion of the present invention; Figure 4 This is a cross-sectional structural diagram of an embodiment of the detection box of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of an embodiment of the reinforcing part of the present invention.

[0013] Explanation of reference numerals in the attached figures: 100. Conductive rail; 110. Support part; 111. Connecting frame; 112. Bolt; 120. Reinforcing part; 121. U-frame; 122. Flexible anti-slip sleeve; 123. Extension strip; 124. Reference strip; 125. Coating; 126. Turnbuckle; 127. Base; 130. Outer cylinder; 131. Rubber cylinder; 132. Load-bearing shaft; 133. Inner liner ring; 134. Clearance hole; 140. Inner liner cylinder; 141. Flange; 142. Positioning ring; 200. Testing box; 210. Load-bearing plate; 220. Positioning frame. Detailed Implementation

[0014] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Please see Figures 1 to 5The conductive rail of the wind turbine generator set of the present invention includes a conductive rail 100, which is assembled inside the wind turbine tower and distributed along its height. The outer wall of the conductive rail 100 is equipped with a support portion 110 that is fixedly connected to the inner wall of the wind turbine tower. The support portion 110 includes a connecting frame 111 that sleeves the side of the conductive rail 100. An outer cylinder 130 is assembled on the side of the connecting frame 111 away from the conductive rail 100. An inner liner 140 that is fixed to the inner wall of the wind turbine tower is slidably sleeved inside the outer cylinder 130.

[0019] A load-bearing shaft 132 extending into the inner liner 140 is fixed at the axial position inside the outer cylinder 130. The outer wall of the load-bearing shaft 132 and the outer cylinder 130 form a unit buffer space. A rubber cylinder 131 for elastic protection is sleeved inside the unit buffer space. Multiple sets of clearance holes 134 are opened around the axial direction of the rubber cylinder 131 and are equidistantly distributed along the axial direction of the rubber cylinder 131. A positioning ring 142 for positioning the inner liner 140 is bolted to the end face of the outer cylinder 130. A reinforcing part 120 covering the outside of the conductive rail 100 is connected to the outer wall of the inner liner 140.

[0020] Two sets of support parts 110 are assembled along the length of each section of conductive rail 100, and the conductive rail 100 is securely installed in the internal space of the wind turbine tower through the support parts 110. At the same time, the rubber cylinder 131 inside the support parts 110 can effectively absorb vibration and shaking during operation, thereby providing elastic protection for the conductive rail 100 to avoid damage caused by rigid contact between it and the support parts 110.

[0021] When vibration occurs, the conductive rail 100 transmits the external force to the outer cylinder 130 through the connecting frame 110, thereby driving the outer cylinder 130 to move directionally to one side of the inner liner cylinder 140. Under the cooperative constraint of the inner liner cylinder 140 and the load-bearing shaft 132, the outer cylinder 130 will move along a preset mechanical trajectory to achieve linear displacement in the horizontal direction. During this process, the outer cylinder 130 and the inner liner ring 133 are closely fitted together, applying continuous pressure to the rubber cylinder 131 located in the unit buffer space, causing the rubber cylinder 131 to undergo controllable elastic deformation, thereby playing a buffer protection function. At the same time, multiple sets of relief holes 134 are configured inside the rubber cylinder 131. These relief holes 134 deflate when the rubber cylinder 131 deforms, providing necessary space support for its deformation process, thereby ensuring smooth and efficient buffering action.

[0022] Please see Figure 5 The reinforcing part 120 includes two sets of U-frames 121 that are sleeved on the front and rear sides of the conductive rail 100 and form a clamp structure. On the same side of both sets of U-frames 121, there are extension strips 123. A reference strip 124 is welded to the top of each set of extension strips 123. The surface of the reference strip 124 is coated with a variety of colored coatings at equal intervals along its height direction.

[0023] Turnbuckles 126 are mounted above the two sets of extension strips 123 and on one side of the reference strip 124. The upper and lower ends of the turnbuckles 126 are rotatably connected to bases 127. The upper and lower sets of bases 127 are respectively fixed to the flange 141 and rotatably connected to the extension strips 123.

[0024] The two sets of U-frames 121 are fixed to the outer side of the conductive rail 100 by bolts on both sides, and flexible anti-slip sleeves 122 are fitted inside the two sets of U-frames 121 on the outer wall of the conductive rail 100.

[0025] The front and back of the conductive rail 100 can be covered with a color coating for comparison, and the color coating corresponds to the same color in the coating 125.

[0026] Because the turnbuckle 126 connects the support 110 to the clamp formed by the two sets of U-shaped frames 121, this structure can effectively adapt to the vibration and shaking of the conductive rail 100 during operation. The clamp structure itself has a certain degree of responsiveness and can vibrate synchronously with the conductive rail 100, reducing stress concentration. In addition, the flexible anti-slip sleeve 122 covers the contact surface, increasing the coefficient of friction between it and the clamp structure, thereby enhancing the gripping force between the two and making the overall fixation more secure. At the same time, combined with the locking effect of the turnbuckle 126, it further strengthens the reinforcement effect on the conductive rail 100, especially effectively preventing slippage and sagging problems that may occur during long-term vibration.

[0027] To facilitate daily maintenance and monitoring, a reference strip 124 is provided, with a coating of a specific color on its surface. Inspectors can directly observe whether the coating on the reference strip 124 has shifted from the corresponding position of the coating on the surface of the conductive rail 100, and quickly and intuitively determine whether the conductive rail 100 has slipped or shifted. This allows for rapid diagnosis without the need for complex tools, which helps to identify problems in a timely manner and make adjustments, namely adjusting the turnbuckle 126, thereby ensuring that the conductive rail 100 always maintains a stable position and overall stability during operation.

[0028] Please refer to this carefully. Figure 1 The inner liner 140 has an inner liner ring 133 that slides inside the outer cylinder 130 at one end, and the other end of the inner liner 140 has an integrally formed flange 141 that is assembled inside the wind turbine tower.

[0029] The inner liner ring 133 and the positioning ring 142 work together to ensure that the outer cylinder 130 and the inner liner ring 140 can slide relative to each other, forming a flexible telescopic structure; in order to absorb the shaking and vibration generated by the conductive rail 100 during operation, thereby protecting the entire system from damage.

[0030] Meanwhile, the entire device is securely connected to the inner wall of the wind turbine tower by the flange 141, ensuring the stability and safety of the structure.

[0031] Please refer to this carefully. Figure 1 , Figure 3 and Figure 4 The connecting frame 111 has a U-shaped structure and extends to the front and rear surfaces of the conductive rail 100 on both sides. The front and rear sides of the connecting frame 111 are equipped with fastening bolts 112 for fixing to the outer wall of the conductive rail 100. The outer cylinder 130 is detachably assembled to the side surface of the connecting frame 111 using wheel bolts. The outer wall of the outer cylinder 130 is welded with reinforcing plates at the upper and lower sides.

[0032] The connecting frame 111 is tightly fixed to the outside of the conductive rail 100 by fastening bolts 112, ensuring that the connection between the connecting frame 111 and the conductive rail 100 is firm and reliable, thereby achieving precise positioning of the conductive rail 100 and preventing it from shifting or loosening during operation.

[0033] Meanwhile, the addition of reinforcing plates enhances the structural strength of the outer cylinder 130 and the inner liner cylinder 140, increases their load-bearing capacity, effectively disperses stress, and ensures that the conductive rail 100 remains stable inside the wind turbine tower, meeting the long-term usage requirements in complex environments.

[0034] Please refer to the previous document. Figure 1 and Figure 2 The present invention also provides a monitoring device for the conductive rail of the wind turbine generator set in the above embodiments, including a detection box 200, which is mounted on the side of the joint of two conductive rails 100. The detection box 200 includes a current sensor, a voltage sensor, a temperature sensor and a vibration sensor mounted on its surface.

[0035] The detection box 200 collects real-time data on current, voltage, temperature, and vibration of the conductive rail 100 and transmits it to the remote monitoring center via a communication module.

[0036] The detection box 200 also includes a load-bearing plate 210 sleeved on the outside of the conductive rail 100. A positioning frame 220 is welded to the outer wall of the load-bearing plate 210. Ear plates connected to the upper surface of the positioning frame 220 are located at the front and rear of the detection box 200. The load-bearing plate 210 and positioning frame 220 provide a stable installation point and support structure for the detection box 200. Once installed, the various sensors and monitoring modules inside the detection box 200 can monitor the operating status of the conductive rail 100 in real time and continuously, comprehensively collecting key parameters including temperature, vibration, displacement, and current. This system can promptly transmit the acquired abnormal data and status information to a remote monitoring terminal through a reliable communication network, thereby achieving remote early warning and centralized management.

[0037] The specific modules and detection methods are as follows: Signal processing module: Filters, amplifies, and digitizes the signals acquired by the sensors to ensure the accuracy and reliability of the data.

[0038] Data Analysis Module: Analyzes processed data based on machine learning algorithms (such as support vector machines, neural networks, etc.) to identify abnormal patterns.

[0039] Alarm module: When an anomaly is detected, an audible and visual alarm is triggered, and the alarm information is sent to the remote monitoring center via the communication module.

[0040] Communication module: Supports wireless communication (such as 4G / 5G, LoRa, etc.) to enable remote transmission and monitoring of detection data.

[0041] Power module: Provides a stable power supply for the device, supporting solar or wind power.

[0042] Detection method: Data acquisition: The current, voltage, temperature and vibration data of the conductive rail are collected in real time through the sensor module.

[0043] Signal processing: Filtering, amplifying, and digitizing the acquired data.

[0044] Anomaly detection: Machine learning algorithms are used to analyze the processed data and identify abnormal patterns (such as overload, short circuit, overheating, etc.).

[0045] Alarm and feedback: When an anomaly is detected, the alarm module is triggered, and the alarm information is sent to the remote monitoring center through the communication module.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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; and these 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 the present invention.

Claims

1. A conductive rail for a wind turbine generator set, characterized in that, The system includes a conductive rail, which is installed inside the wind turbine tower and distributed along its height. The outer wall of the conductive rail is fitted with a support portion that is fixedly connected to the inner wall of the wind turbine tower. The support portion includes a connecting frame that fits onto the side of the conductive rail. An outer cylinder is fitted on the side of the connecting frame away from the conductive rail. An inner liner that is fixed to the inner wall of the wind turbine tower is slidably fitted inside the outer cylinder. A load-bearing shaft extending into the inner liner is fixed at the axial position inside the outer cylinder. The outer wall of the load-bearing shaft and the outer cylinder form a unit buffer space. A rubber cylinder for elastic protection is fitted inside the unit buffer space. A positioning ring for positioning the inner liner is bolted to the end face of the outer cylinder. A reinforcing portion covering the outside of the conductive rail is connected to the outer wall of the inner liner.

2. The conductive rail of the wind turbine generator set according to claim 1, characterized in that, The reinforcing part includes two sets of U-frames that are sleeved on the front and rear sides of the conductive rail and form a clamp structure. An extension strip is fixed on the same side of both sets of U-frames. A reference strip is welded to the top of each set of extension strips. The surface of the reference strip is coated with a variety of colored coatings at equal intervals along its height direction.

3. The conductive rail of the wind turbine generator set according to claim 2, characterized in that, Turnbuckles are mounted above the two sets of extension strips and on one side of the reference strip. The upper and lower ends of the turnbuckles are rotatably connected to bases. The upper and lower sets of bases are respectively fixed to the flange and rotatably connected to the extension strips.

4. The conductive rail of the wind turbine generator set according to claim 2, characterized in that, The two sets of U-frames are fixed to the outside of the conductive rail by bolts on both sides, and flexible anti-slip sleeves are fitted inside the two sets of U-frames on the outer wall of the conductive rail.

5. The conductive rail of the wind turbine generator set according to claim 1, characterized in that, The front and back of the conductive rail can be covered with a color coating for comparison and reference, and the color coating corresponds highly to the same color in the coating.

6. The conductive rail of the wind turbine generator set according to claim 1, characterized in that, The end of the inner liner is fixed with an inner liner ring that slides inside the outer cylinder, and the other end of the inner liner is provided with an integrally formed flange that is assembled inside the wind turbine tower.

7. The conductive rail of the wind turbine generator set according to claim 1, characterized in that, The connecting frame has a U-shaped structure and extends to the front and rear surfaces of the conductive rail on both sides. The front and rear of the connecting frame are equipped with fastening bolts for fixing to the outer wall of the conductive rail. The outer cylinder is detachably assembled to the side surface of the connecting frame using wheel bolts. Reinforcing plates are welded to the upper and lower sides of the outer wall of the outer cylinder.

8. A monitoring device for the conductive rail of a wind turbine generator set according to any one of claims 1-7, characterized in that, The device includes a detection box, which is mounted on the side of the joint between two conductive rails. The detection box includes a current sensor, a voltage sensor, a temperature sensor, and a vibration sensor mounted on its surface.

9. The monitoring device according to claim 8, characterized in that, The detection box collects real-time data on the current, voltage, temperature, and vibration of the conductive rail and transmits it to a remote monitoring center via a communication module.

10. The monitoring device according to claim 8, characterized in that, The testing box also includes a load-bearing plate sleeved on the outside of the conductive rail. The outer wall of the load-bearing plate is welded with a positioning frame, and the front and rear of the testing box are provided with ear plates connected to the upper surface of the positioning frame.

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