Intelligent net-shaped windproof stay wire system for overhead transmission line in strong wind area and use method thereof

Abstract

The invention discloses a net-shaped intelligent windproof stay wire system for an overhead transmission line in a strong wind area and a use method of the net-shaped intelligent windproof stay wire system, and aims to solve the technical problem that the transmission line is easy to damage in a strong wind environment, the system comprises a net-shaped stay wire and a monitoring device, the net-shaped stay wire is composed of a main stay wire, a connecting wire and a connecting base, and the main stay wire is fixed between towers through the connecting base; the main stay wire is connected with the power transmission conductor through the connecting wire to form a net-shaped structure, so that the overall stability is enhanced; the connecting base is arranged in the tower body of the tower, reinforces the anchor point and is connected with the main stay wire; the detection device is installed at a connection node of a power transmission line and a connection line, comprises an acceleration sensor, a communication device and a solar storage battery, and can monitor the operation state of the power transmission line in real time. Effective protection of the whole section of the power transmission line in the strong wind environment is achieved through the net-shaped stay wire, meanwhile, the actual working condition of the power transmission line is accurately fed back through the detection device, reference is provided for workers, accidents are effectively prevented, and safe and stable operation of a power grid is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of wind protection for overhead power transmission lines, and in particular to a meshed intelligent wind protection cable pulling system for overhead power transmission lines in windy areas and a method for using the system. Background Art

[0002] As an important part of my country's power transmission system, overhead transmission lines are responsible for the long-distance and large-scale transmission of power resources. These transmission lines are usually designed as tall and wide-span structures to adapt to the complex and changing geographical environment. However, this structural characteristic also makes them extremely susceptible to interference from the natural environment, especially the invasion of strong winds. In areas with strong winds, such as western and coastal areas of my country, overhead transmission lines face serious operational challenges.

[0003] In order to cope with the impact of strong winds on overhead transmission lines, the industry has taken a series of technical measures. Traditional wind-proof measures mainly include arranging wind-proof guy wires, installing heavy hammers, and installing interphase spacers. Among them, wind-proof guy wires are particularly widely used because they are easy to install at the wire hanging point and can effectively improve the wind resistance of transmission lines. However, traditional wind-proof guy wires usually adopt a single arrangement method and have limited hanging point locations, which makes it difficult for them to form comprehensive and effective protection against the dancing of wires in transmission line sections. In a windy environment, the swing of the wires is highly irregular, and the wind-proof guy wires with a single hanging point are often difficult to cope with such complex dynamic changes.

[0004] Installing a weight is another common windproof measure, which reduces the wind deflection angle by increasing the deadweight of the transmission line. Although this method can improve the stability of the transmission line to a certain extent, its effect is not significant in windy areas. In addition, installing a weight will also increase the load on the transmission line, which will have an adverse effect on the long-term operation of the line.

[0005] Phase spacers are mainly used to prevent short circuits between phases of a line. Although they can provide a certain degree of protection, their effectiveness in preventing conductor sway in windy areas is also limited. The installation and maintenance costs of phase spacers are also relatively high, increasing the operating costs of transmission lines.

[0006] In addition to the above traditional measures, there is currently a lack of a device that can comprehensively monitor the overall operating status of the transmission line. In a windy environment, the swing state of the transmission line is complex and changeable, and real-time monitoring and data analysis are required to accurately grasp its operating status. However, existing monitoring methods can usually only monitor local areas and cannot achieve comprehensive coverage of the entire transmission line. This makes it difficult for staff to understand the operating status of the transmission line in a timely and accurate manner, making it difficult to take effective protective measures.

[0007] Therefore, the industry is in urgent need of a new windproof wire pulling device and its use method, which can not only fully cover the transmission lines and improve wind resistance, but also monitor the operating status of the transmission lines in real time and provide valuable reference information for the staff; this device needs to be able to overcome the limitations of existing technologies and achieve effective protection and comprehensive monitoring of the entire section of the transmission line. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a mesh intelligent windproof cable pulling system for overhead power transmission lines in strong wind areas and a method of using the system, so as to solve the technical problem that overhead power transmission lines are easily damaged in strong wind environments, especially in view of the severe challenge that the western and coastal areas of my country are often attacked by strong winds, resulting in frequent short circuits, breaks and even tower collapses in the transmission lines.

[0009] In order to solve the above technical problems, the technical solution adopted by the present invention is: a meshed intelligent windproof cable system for overhead transmission lines in strong wind areas, including a meshed cable and a monitoring device, the meshed cable including a main cable, a connecting cable and a connecting base, the main cable is connected between a group of towers through a connecting base, and is connected to the transmission line through a connecting cable, the connecting cable is installed between the transmission conductor and the main cable, the connecting base is installed inside the tower body of the tower, and is used to reinforce the tower structure and serve as a connection point for the main cable, and a monitoring device is arranged at the connection point of the connecting cable.

[0010] In the preferred scheme, the main tension wire and the connecting wire are made of steel stranded wire, and are provided with tension clamps at both ends. The tension clamps are used to connect the main tension wire and the connecting wire, and are also used to connect the main tension wire, the connecting wire and other components; the connecting wire is connected to the main tension wire and the transmission wire through suspension clamps and connecting hardware.

[0011] In a preferred solution, the monitoring device includes a plurality of identical detection units, each of which is arranged at a connection point between the power transmission line and the connecting line, and is used to monitor the operating status of the power transmission line.

[0012] In a preferred solution, the detection unit is provided with an acceleration sensor, a communication device and a solar battery; the acceleration sensor is a dual-axis acceleration sensor, whose monitoring plane is perpendicular to the line between the centers of the two towers, and is used to measure the acceleration of the monitoring point and calculate the displacement; the communication device is used to transmit the monitoring data to the control center to realize real-time monitoring of the operating status of the transmission line.

[0013] In a preferred solution, the solar battery is installed on the light-receiving side of the connecting fitting, and the acceleration sensor and the communication device are installed on the other side of the connecting fitting.

[0014] In a preferred solution, the control center calculates the displacement of each detection unit based on the received monitoring data, and fits the operation status of the transmission line in a dotted diagram on the front and top planes to determine whether power-off protection measures need to be taken. The calculation formula for calculating the displacement of each detection unit is as follows: (1) In the formula, is the displacement as a function of time, is the acceleration function, Represents time; this formula represents the displacement of the monitoring point in one direction from the beginning of movement to the current moment, and the two directions are calculated and fitted separately.

[0015] In a preferred solution, a screw hole is provided on the surface of the connection fitting, a fastening screw is installed in the screw hole, and the detection unit is installed and fastened by the fastening screw.

[0016] In a preferred solution, the connection base includes a reinforcement piece and a reinforcement plate. The reinforcement piece is formed by splicing multiple sections of steel plates. The reinforcement plate is fixed to the reinforcement piece and the tower body through connecting holes to reinforce the installation position of the connection base.

[0017] In a preferred solution, the reinforcement plate is formed by a casting process, is fastened to the tower body by bolts, and has a connection hole on one side thereof, which is connected to the main tension wire through an insulator and a wire clamp.

[0018] The method for using the mesh intelligent windproof cable pulling system for overhead power transmission lines in a strong wind area is to use any one of the mesh intelligent windproof cable pulling systems for overhead power transmission lines in a strong wind area, and the method comprises the following steps: Step 1: Install the connection base inside the tower, and reinforce the installation position of the connection base with the reinforcement piece, and then use bolts to install the reinforcement plate on the reinforcement piece and the tower body; then install one end of the insulator on the connection hole of the reinforcement plate, and connect the other end to the main pull wire through the tension wire clamp. In this way, the two ends of the main pull wire are connected to the towers on both sides respectively; Step 2: Arrange the suspension wire clamp above the main guy wire and the transmission line, and connect the main guy wire to the transmission line through the connecting wire; while connecting the transmission wire, install the detection unit on the connecting fitting, install the solar battery on the light-receiving side of the connecting fitting, install the acceleration sensor and the communication device on the other side of the connecting fitting, and adjust the dual-axis acceleration sensor so that its monitoring plane is perpendicular to the connection line between the towers; Step 3: Establish communication between the control center and the monitoring device. The control center calculates the displacement of each monitoring point based on the monitoring data transmitted by the detection unit, fits the operating status of the transmission line, and decides whether to power off the line for protection as needed.

[0019] The meshed intelligent windproof cable pulling system for overhead power transmission lines in windy areas and the use method thereof provided by the present invention have the following beneficial effects: 1. The present invention solves the technical problem that overhead power transmission lines are easily damaged in strong winds, especially in western my country and coastal areas, which are often hit by strong winds, resulting in frequent short circuits, disconnections and even tower collapses in transmission lines; 2. The present invention adopts a mesh cable structure, and through the combination of the main cable and the connecting cable, the protection of the entire section of the transmission line is realized, the layout of the windproof cable is changed from point to line, the windproof measures in the transmission line are increased, the layout scene of the windproof cable is effectively increased, and the adverse effects of the strong wind environment are reduced; 3. The mesh cable structure of the present invention changes the layout of the windproof cable from point to line, increases the windproof measures in the transmission line, and effectively improves the windproof performance of the transmission line; 4. The present invention installs a monitoring device on the connecting line, which can monitor the operating status of the transmission line in real time, measure the acceleration of the monitoring point through the acceleration sensor, and calculate the displacement in the horizontal and vertical directions, so as to fit the operating status of the transmission line at this time; 5. The present invention monitors the acceleration and displacement and other parameters of the transmission line in real time through the monitoring device, and can accurately fit the operating status of the transmission line in a strong wind environment, providing a reference for the staff; 6. The monitoring device of the present invention is powered by solar batteries, which reduces the manual operation and maintenance costs and ensures the continuous and stable operation of the monitoring device; 7. The present invention detects the operating conditions of multiple nodes, accurately fits the operating status of the transmission line in a strong wind environment, and provides timely and accurate reference for the staff; 8. The installation of the present invention does not require changing the original structure of the transmission line, which is convenient for installing on the existing transmission line to improve its windproof performance. At the same time, the monitoring device is equipped with solar batteries to reduce the manual operation and maintenance costs; 9. The installation arrangement of the present invention is not affected by the transmission line below and can be used in a variety of environments. At the same time, the present invention can customize the detection units installed in areas with different risks to achieve personalized installation and reduce installation costs. 10. Compared with traditional windproof guy wires, which are often limited to a single arrangement mode and hanging point position, it is difficult to form a comprehensive and effective protection against the dancing of the conductors in the transmission line. This solution realizes the layout transformation of the windproof guy wire from point to line through the design of mesh guy wires, increases the windproof measures in the transmission line, and effectively expands the layout scenarios of the windproof guy wires; 11. The present invention combines intelligent monitoring technology with windproof guy wires, monitors the acceleration changes of the transmission line in real time through acceleration sensors, and calculates the displacement, thereby fitting the operating status of the transmission line. This technical integration not only improves the intelligence level of windproof guy wires, but also provides more accurate and timely monitoring data for staff, which helps to take power-off protection measures in time to prevent accidents; 12. The connection base of the present invention is made of steel materials, which is easy to install and reinforce. The detection unit is powered by solar batteries, which reduces the cost of manual operation and maintenance. At the same time, the arrangement of the mesh wires and connecting wires is not affected by the transmission lines below and can be used in a variety of environments, improving the applicability and convenience of the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of a partial explosion view of a pole tower of the present invention; Figure 3 This is a detailed diagram of the main cable arrangement of the present invention; Figure 4 It is a detailed diagram of the connection line arrangement of the present invention; Figure 5 This is a fitting diagram of the front view working condition of the detection device of Example 3 of the present invention; Figure 6 This is a top view fitting diagram of the working condition of the detection device of Example 3 of the present invention; In the figure: pole tower 1, main guy wire 2, connecting wire 3, connecting base 4, monitoring device 5, tower body 101, transmission wire 102, insulator 201, tension clamp 202, connecting hardware 301, suspension clamp 302, fastening screw 303, reinforcement 401, reinforcement plate 402, connecting hole 403, monitoring unit 501, acceleration sensor 502, solar battery 503, communication device 504, mounting hole 505, normal operating line 506, fitting line 507. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments: Example 1 like Figures 1 to 4As shown, a meshed intelligent windproof guy wire system for overhead power transmission lines in windy areas includes a meshed guy wire and a monitoring device 5. The meshed guy wire includes a main guy wire 2, a connecting wire 3 and a connecting base 4. The main guy wire 2 is connected between a group of towers 1 through the connecting base 4, and is connected to the power transmission line through the connecting wire 3. The connecting wire 3 is installed between the power transmission conductor 102 and the main guy wire 2. The connecting base 4 is installed inside the tower body 101 of the tower 1, and is used to reinforce the structure of the tower 1 and serve as a connection point for the main guy wire 2. A monitoring device 5 is arranged at the connection point of the connecting wire 3.

[0022] In this embodiment, the main tension wire 2 and the connecting wire 3 are made of steel stranded wire, and are provided with tension clamps 202 at both ends. The tension clamps 202 connect the main tension wire 2 and the connecting wire 3 together, and are also used to connect the main tension wire 2, the connecting wire 3 with other components; the connecting wire 3 is connected to the main tension wire 2 and the transmission line 102 through a suspension clamp 302 and a connecting hardware 301.

[0023] Furthermore, the monitoring device 5 includes a plurality of identical detection units 501 , each of which is arranged at a connection point between the power transmission line and the connecting line 3 , and is used to monitor the operating status of the power transmission line.

[0024] Furthermore, the detection unit 501 is provided with an acceleration sensor 502, a communication device 504 and a solar battery 503; the acceleration sensor 502 is a dual-axis acceleration sensor, and its monitoring plane is perpendicular to the line between the centers of the two towers 1, and is used to measure the acceleration of the monitoring point and calculate the displacement; the communication device 504 is used to transmit the monitoring data to the control center to realize real-time monitoring of the operating status of the transmission line.

[0025] Furthermore, the solar battery 503 is installed on the light-receiving side of the connection fitting 301 , and the acceleration sensor 502 and the communication device 504 are installed on the other side of the connection fitting 301 .

[0026] Furthermore, the control center calculates the displacement of each detection unit 501 according to the received monitoring data, and fits the operation status of the transmission line in two planes, the front view and the top view, with a dot diagram to determine whether power-off protection measures need to be taken. The calculation formula for calculating the displacement of each detection unit 501 is as follows: (1) In the formula, is the displacement as a function of time, is the acceleration function, Represents time; this formula represents the displacement of the monitoring point in one direction from the beginning of movement to the current moment, and the two directions are calculated and fitted separately.

[0027] Furthermore, a screw hole is provided on the surface of the connection fitting 301 , and a fastening screw 303 is installed in the screw hole, and the detection unit 501 is installed and fastened by the fastening screw 303 .

[0028] Furthermore, the connection base 4 includes a reinforcement member 401 and a reinforcement plate 402 . The reinforcement member 401 is formed by splicing multiple sections of steel plates. The reinforcement plate 402 is fixed to the reinforcement member 401 and the tower body 101 through a connection hole 403 to reinforce the installation position of the connection base 4 .

[0029] Furthermore, the reinforcement plate 402 is formed by a casting process and is fastened to the tower body 101 by bolts, and a connection hole 403 is opened on one side thereof, and the connection hole 403 is connected to the wire clamp through the insulator 201 to fasten the main tension wire 2.

[0030] Example 2 In another preferred embodiment, based on the above embodiment 1, a method for using the meshed intelligent windproof cable system for overhead power transmission lines in a strong wind area is to use any one of the meshed intelligent windproof cable system for overhead power transmission lines in a strong wind area, and the method comprises the following steps: Step 1: Install the connection base 4 inside the tower 1, and reinforce the installation position of the connection base 4 through the reinforcement member 401, and then use bolts to install the reinforcement plate 402 on the reinforcement member 401 and the tower body 101; then install one end of the insulator 201 on the connection hole 403 of the reinforcement plate 402, and connect the other end of the insulator 2 to the main tension wire 2 through the tension clamp 202. In this way, the two ends of the main tension wire 2 are respectively connected to the towers 1 on both sides; Step 2: Arrange the suspension clamp 302 above the main guy wire 2 and the transmission line, and connect the main guy wire 2 to the transmission line through the connecting wire 3; while connecting the transmission wire 102, install the detection unit 501 on the connecting fitting 301, install the solar battery 503 on the light-receiving side of the connecting fitting 301, install the acceleration sensor 502 and the communication device 504 on the other side of the connecting fitting 301, and adjust the dual-axis acceleration sensor so that its monitoring plane is perpendicular to the connection line between the towers 1; Step 3: Establish communication between the control center and the monitoring device 5. The control center calculates the displacement of each monitoring point based on the monitoring data transmitted by the detection unit 501, fits the operating status of the transmission line, and decides whether to perform power-off protection on the line as needed.

[0031] Example 3 In another preferred embodiment, based on the above-mentioned embodiments 1 and 2, this embodiment provides a meshed intelligent windproof cable system for overhead power transmission lines in a strong wind area and a method for using the same. The structure of the system is as follows: Figures 1 to 4 As shown, the functions and working methods of each part are described as follows: A meshed intelligent windproof cable system for overhead power transmission lines in windy areas, comprising a meshed cable and a monitoring device 5.

[0032] The mesh guy wire includes a main guy wire 2, a connecting wire 3 and a connecting base 4; the main guy wire 2 is connected between two pole towers 1 through the connecting base 4, and is connected to the transmission line through the connecting wire 3; the connecting wire 3 is installed between the transmission conductor 102 and the main guy wire 2 to form a mesh structure to enhance the support and protection of the transmission line; the connecting base 4 is installed inside the tower body 101 of the pole tower 1 to reinforce the anchor point and connect the main guy wire 2.

[0033] The connecting base 4 is composed of a reinforcement member 401 and a reinforcement plate 402; the reinforcement member 401 is spliced ​​from multiple sections of steel plates to form a solid internal structure; the reinforcement plate 402 is fixed to the reinforcement member 401 and the tower body 101 through a connecting hole 403 to ensure the stability of the connecting base 4; the reinforcement plate 402 adopts a casting molding process and is fastened to the tower body 101 by bolts; the connecting hole 403 is used to install the insulator 201, one end of the insulator 201 is connected to the connecting hole 403 of the reinforcement plate 402, and the other end is connected to the main tension line 2 through the tension clamp 202; the tension clamp 202 is a bolt type, which is used to fasten the two ends of the main tension line 2 and the connecting line 3 to other components.

[0034] The main tension wire 2 and the connecting wire 3 are both made of steel strands and have high strength and toughness. A suspension wire clamp 302 is arranged above the main tension wire 2 and the transmission line, and is connected to the connecting wire 3 through the suspension wire clamp 302 and the connecting hardware 301. Screw holes are provided on the surface of the connecting hardware 301 for installing the detection unit 501.

[0035] The monitoring device 5 is composed of a plurality of identical detection units 501 and a control center; the detection unit 501 is arranged above the connection fitting 301 at the connection point between the transmission line and the connecting line 3; each detection unit 501 is provided with an acceleration sensor 502, a transceiver and a solar battery 503; during installation, the solar battery 503 is installed on the light-receiving side of the connection fitting 301, and the acceleration sensor 502 and the communication device 504 are installed on the other side of the connection fitting 301; the acceleration sensor 502 adopts a two-axis acceleration sensor, and the monitoring plane is perpendicular to the line between the centers of the two towers 1, so as to accurately measure the acceleration changes of the transmission line in the horizontal and vertical directions.

[0036] The installation steps and usage are as follows: S1: The operator carries the steel material of the connection base 4 to the inside of the pole tower 1. After arriving at the installation position, the operator first installs the reinforcement member 401 to reinforce the installation position of the connection base 4; after the reinforcement is completed, the reinforcement connecting plate 402 is installed with bolts; then, one end of the insulator 201 is installed to the connection hole 403 on the reinforcement connecting plate 402, and the other end is connected to the main tension wire 2 through the tension clamp 202; in the same way, the other end of the main tension wire 2 is connected to the pole tower 1 on the other side; S2: Arrange the suspension clamp 302 above the main guy wire 2 and the transmission line. After the arrangement is completed, the main guy wire 2 and the transmission line are connected through the connecting wire 3. While connecting the transmission wire 102, the detection unit 501 is installed on the connecting fitting 301. During installation, the solar battery 503 is installed on the light-receiving side of the connecting fitting 301, and the acceleration sensor 502 and the communication device 504 are installed on the other side of the connecting fitting 301. After the installation is completed, adjust the dual-axis acceleration sensor 502 so that the plane formed by it is perpendicular to the connection line between the pole towers 1 to ensure the accuracy of the measurement; S3: The operator establishes communication between the control center and the monitoring device 5; the control center calculates the displacement of the detection unit 501 through the signal transmitted by the detection unit 501, and thus fits the line swing condition through the monitoring point position; by comparing the normal working condition line 506 and the fitting line 507, as shown in FIG. Figure 5 , Figure 6 As shown, by judging the line swing condition, the control center can decide whether to cut off the power supply to the line for protection to prevent accidents caused by excessive swing.

[0037] In this embodiment, the arrangement of the mesh guy wire realizes the transformation of the arrangement of the windproof guy wire from point to line, increases the windproof measures in the transmission line, effectively increases the arrangement scenario of the windproof guy wire, and reduces the adverse effects of the strong wind environment; at the same time, by monitoring the operation status of multiple nodes through the monitoring device 5, the operation status of the transmission line in the strong wind environment can be accurately fitted, providing a reference for the staff, and improving the safety and stability of the transmission line.

[0038] In addition, the installation of the present invention does not require changing the original structure of the transmission line, which is convenient for installation on existing transmission lines to improve their wind resistance; the monitoring device 5 is equipped with a solar battery 503, which reduces the cost of manual operation and maintenance; the installation layout is not affected by the transmission line below and can be used in a variety of environments; at the same time, the present invention can be customized to install the detection unit 501 for areas with different risks, realize its personalized installation, and reduce the installation cost.

[0039] In the preferred scheme, the main tension line 2 and the connecting line 3 are made of steel strands, and both ends are provided with tension clamps 202. The main tension line 2 and the connecting line 3 are connected together by the tension clamps 202, which are also used to connect the main tension line 2, the connecting line 3 with other components; the connecting line 3 is connected to the main tension line 2 and the transmission line 102 through the suspension clamps 302 and the connecting hardware 301; the above settings ensure the structural stability and safety of the transmission system; the selection of steel strands enhances the tensile strength, and the tension clamps 202 provide a reliable connection point, effectively preventing the risk of line breakage; the synergistic effect of the suspension clamps 302 and the connecting hardware 301 further optimizes the mechanical transfer efficiency and improves the overall transmission performance.

[0040] In the preferred solution, the monitoring device 5 includes a number of identical detection units 501, each detection unit 501 is arranged at the connection point between the transmission line and the connecting line 3, and is used to monitor the operating status of the transmission line; the above setting can realize accurate monitoring of the transmission line and timely discover potential problems; each detection unit 501 aggregates data to the central processing system through wireless communication technology, realizes remote monitoring and fault warning, and effectively improves the safety and maintenance efficiency of the power grid.

[0041] In the preferred solution, the detection unit 501 is provided with an acceleration sensor 502, a communication device 504 and a solar battery 503; the acceleration sensor 502 is a dual-axis acceleration sensor, and its monitoring plane is perpendicular to the line between the centers of the two towers 1, and is used to measure the acceleration of the monitoring point and calculate the displacement; the communication device 504 is used to transmit the monitoring data to the control center to realize real-time monitoring of the operating status of the transmission line; the above settings ensure the accuracy and real-time nature of the data, and at the same time, the solar battery 503, as a green energy supply, provides a reliable guarantee for the long-term stable operation of the system, effectively reduces the maintenance cost, and enhances the sustainability and environmental protection of the system.

[0042] In the preferred solution, the solar battery 503 is installed on the light-receiving side of the connecting fitting 301, and the acceleration sensor 502 and the communication device 504 are installed on the other side of the connecting fitting 301; the above arrangement not only ensures that the solar battery 503 can receive sunlight to the maximum extent for charging, but also monitors the structural vibration in real time through the acceleration sensor 502 to ensure safety; at the same time, the communication device 504 is located on the non-light-receiving side, which effectively avoids interference from direct sunlight and ensures the stability and accuracy of data transmission.

[0043] In the preferred solution, the control center calculates the displacement of each detection unit 501 based on the received monitoring data, and fits the operating status of the transmission line in a dotted diagram on the two planes of front view and top view to determine whether power-off protection measures need to be taken; the above settings can reflect the dynamic changes of the line in real time, effectively prevent failures caused by natural factors or equipment aging, and ensure the safe and stable operation of the power grid; at the same time, the system also has an automatic early warning function, and once an abnormality is detected, it will immediately notify the maintenance personnel to achieve rapid response.

[0044] In the preferred embodiment, the surface of the connecting hardware 301 is provided with a screw hole, and a fastening screw 303 is installed in the screw hole, and the detection unit 501 is installed and fastened by the fastening screw 303; the above arrangement not only ensures a stable connection between the detection unit 501 and the connecting hardware 301, but also facilitates subsequent disassembly and maintenance, thereby improving the flexibility and maintainability of the overall structure.

[0045] In the preferred solution, the connecting base 4 includes a reinforcement member 401 and a reinforcement plate 402. The reinforcement member 401 is formed by splicing multiple sections of steel plates. The reinforcement plate 402 is fixed to the reinforcement member 401 and the tower body 101 through a connecting hole 403 to reinforce the installation position of the connecting base 4. The above arrangement not only enhances the structural strength of the connecting base 4, but also flexibly adapts to different installation environments through the reinforcement member 401 spliced ​​from multiple sections, thereby ensuring a stable connection with the tower body 101 and improving the stability and safety of the overall structure.

[0046] In the preferred solution, the reinforcement plate 402 is formed by a casting process and is fastened to the tower body 101 by bolts, and a connecting hole 403 is opened on one side thereof, and the connecting hole 403 is connected to the wire clamp through the insulator 201 to fasten the main tension wire 2; the above arrangement effectively enhances the stability and load-bearing capacity of the tower body 101. At the same time, the application of the insulator 201 ensures the safety of the electrical connection, prevents current leakage, and improves the safety and reliability of the overall structure.

[0047] In summary, the meshed intelligent windproof cable system for overhead power transmission lines in windy areas and its use method proposed in the present invention solve the technical problem that overhead power transmission lines are easily damaged in windy environments, especially for the severe challenge that the western and coastal areas of my country are often attacked by strong winds, resulting in frequent short circuits, circuit breaks and even tower collapses in power transmission lines; the present invention is different from the traditional single windproof cable arrangement method. The mesh cable is composed of a main cable 2, a connecting cable 3 and a connecting base 4, forming a more stable and comprehensive protection network covering the entire section of the transmission line. This design realizes the transformation of the arrangement of the windproof cable from point to line, which can more effectively resist the impact of strong winds on the transmission line, reduce the risk of conductor dancing and short circuit, increase the windproof measures in the transmission line, and effectively increase the arrangement scene of the windproof cable; the present invention combines intelligent monitoring technology with the windproof cable, monitors the acceleration change of the transmission line in real time through the acceleration sensor 502, and calculates the displacement, thereby fitting the operating status of the transmission line. This technical integration not only improves the intelligence level of the windproof cable, but also provides a more accurate Accurate and timely monitoring data helps to take power-off protection measures in time to prevent accidents; the present invention has strong advantages in installation and maintenance, and the connecting base 4 is composed of steel splicing, which is easy to install and reinforce; the detection unit 501 is powered by a solar battery 503, which reduces the cost of manual operation and maintenance; at the same time, the arrangement of the mesh pull wire and the connecting wire 3 is not affected by the bottom of the transmission line, and can be used in a variety of environments, which improves the applicability and convenience of the solution; in addition, the present invention also incorporates the concept of environmental protection, and the solar power supply mode reduces energy consumption and carbon emissions, reflecting the advanced concept of green wind protection; the system supports remote monitoring and data analysis, can warn of potential risks in advance, and combines with the intelligent management platform to achieve a dual improvement in operation and maintenance efficiency and safety; the solution provides a comprehensive solution for wind protection of transmission lines with its highly intelligent, customized, economical and environmentally friendly characteristics; in the future, with the continuous upgrading and optimization of technology, the wind protection system of the present invention is expected to further integrate cutting-edge technologies such as the Internet of Things and big data, achieve more accurate risk prediction and intelligent decision-making, and escort the safe and stable operation of the power grid.

Claims

1. The mesh intelligent windproof cable system for overhead power transmission lines in windy areas is characterized by: The invention comprises a meshed guy wire and a monitoring device (5), wherein the meshed guy wire comprises a main guy wire (2), a connecting wire (3) and a connecting base (4), wherein the main guy wire (2) is connected between a group of pole towers (1) via the connecting base (4) and is connected to a power transmission line via the connecting wire (3), wherein the connecting wire (3) is installed between the power transmission conductor (102) and the main guy wire (2), and the connecting base (4) is installed inside a tower body (101) of the pole tower (1) and is used to reinforce the structure of the pole tower (1) and serve as a connecting point for the main guy wire (2), and a monitoring device (5) is arranged at the connecting point of the connecting wire (3).

2. The mesh intelligent windproof cable pulling system for overhead power transmission lines in windy areas according to claim 1 is characterized by: The main tension wire (2) and the connecting wire (3) are made of steel strands, and are provided with tension clamps (202) at both ends. The tension clamps (202) connect the main tension wire (2) and the connecting wire (3) together, and are also used to connect the main tension wire (2), the connecting wire (3) and other components. The connecting wire (3) is connected to the main tension wire (2) and the transmission wire (102) via a suspension clamp (302) and a connecting fitting (301).

3. The mesh intelligent windproof cable pulling system for overhead power transmission lines in windy areas according to claim 2 is characterized by: The monitoring device (5) comprises a plurality of identical detection units (501), each detection unit (501) being arranged at a connection point between a power transmission line and a connecting line (3) and being used to monitor the operating status of the power transmission line.

4. The mesh intelligent windproof cable pulling system for overhead power transmission lines in windy areas according to claim 3 is characterized by: The detection unit (501) is provided with an acceleration sensor (502), a communication device (504) and a solar battery (503); the acceleration sensor (502) is a dual-axis acceleration sensor, the monitoring plane of which is perpendicular to the line between the centers of the two towers (1), and is used to measure the acceleration of the monitoring point and calculate the displacement; the communication device (504) is used to transmit the monitoring data to the control center, so as to realize real-time monitoring of the operating status of the transmission line.

5. The mesh intelligent windproof cable pulling system for overhead power transmission lines in windy areas according to claim 4 is characterized by: The solar cell (503) is installed on the light-receiving side of the connection fitting (301), and the acceleration sensor (502) and the communication device (504) are installed on the other side of the connection fitting (301).

6. The mesh intelligent windproof cable pulling system for overhead power transmission lines in high wind areas according to claim 5 is characterized by: The control center calculates the displacement of each detection unit (501) based on the received monitoring data, and fits the operation status of the transmission line in two planes, front view and top view, using dot graphs to determine whether power-off protection measures need to be taken, wherein the calculation formula for calculating the displacement of each detection unit (501) is as follows: （1）； In the formula, is the displacement as a function of time, is the acceleration function, Represents time; this formula represents the displacement of the monitoring point in one direction from the beginning of movement to the current moment, and the two directions are calculated and fitted separately.

7. The mesh intelligent windproof cable pulling system for overhead power transmission lines in windy areas according to claim 6 is characterized by: The surface of the connection fitting (301) is provided with a screw hole, in which a fastening screw (303) is installed, and the detection unit (501) is installed and fastened via the fastening screw (303).

8. The mesh intelligent windproof cable pulling system for overhead power transmission lines in high wind areas according to claim 7 is characterized in that: The connection base (4) comprises a reinforcement member (401) and a reinforcement plate (402); the reinforcement member (401) is formed by splicing together a plurality of sections of steel plates; the reinforcement plate (402) is fixed to the reinforcement member (401) and the tower body (101) through a connection hole (403) to achieve reinforcement of the installation position of the connection base (4).

9. The mesh intelligent windproof cable pulling system for overhead power transmission lines in high wind areas according to claim 8 is characterized by: The reinforcement plate (402) is formed by a casting process and is fastened to the tower body (101) by bolts. A connection hole (403) is provided on one side of the reinforcement plate. The connection hole (403) is connected to a wire clamp through an insulator (201) to fasten the main tension wire (2).

10. A method for using a meshed intelligent windproof cable system for overhead power transmission lines in a strong wind area, comprising using the meshed intelligent windproof cable system for overhead power transmission lines in a strong wind area as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step 1: Install a connection base (4) inside the pole tower (1), and reinforce the installation position of the connection base (4) by using a reinforcement member (401), and then use bolts to install the reinforcement plate (402) on the reinforcement member (401) and the tower body (101); then install one end of the insulator (201) on the connection hole (403) of the reinforcement plate (402), and connect the other end of the insulator (2) to the main tension wire (2) through a tension clamp (202). In this way, the two ends of the main tension wire (2) are respectively connected to the pole towers (1) on both sides; Step 2: Arrange a suspension wire clamp (302) above the main guy wire (2) and the transmission line, and connect the main guy wire (2) to the transmission line via a connecting wire (3); while connecting the transmission wire (102), install a detection unit (501) on the connecting fitting (301), install a solar cell (503) on the light-receiving side of the connecting fitting (301), install an acceleration sensor (502) and a communication device (504) on the other side of the connecting fitting (301), and adjust the dual-axis acceleration sensor so that its monitoring plane is perpendicular to the connection line between the pole towers (1); Step 3: Establish communication between the control center and the monitoring device (5). The control center calculates the displacement of each monitoring point based on the monitoring data transmitted by the detection unit (501), fits the operating status of the transmission line, and decides whether to cut off the power supply to the line for protection as needed.

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