Multi-stage damping, deviation-restraining and anti-galloping control device and method for power transmission line

Abstract

The device comprises a control system, the control system is elastically connected with a multi-stage energy consumption mechanism, the control system is connected with one end of a first stay wire, and the other end of the first stay wire is used for being connected with the power transmission line and is provided with a monitoring system; the monitoring system is connected with the control system to transmit collected information to the control system, the multi-stage energy dissipation mechanism is elastically connected with the supporting plate, the supporting plate is connected with one end of the second pull wire, the other end of the second pull wire is used for being connected with a ground foundation, the multi-stage energy dissipation mechanism comprises a shell, and the two sides of the shell are elastically connected with the control system and the supporting plate respectively. A collision friction damping assembly, an eddy current damping assembly and a magnetorheological fluid damping assembly are arranged in the shell, wherein the eddy current damping assembly and the magnetorheological fluid damping assembly are connected with the control system. By the adoption of the control device, the defects of traditional vibration reduction measures are overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of disaster prevention and reduction of power transmission lines, and in particular to a multi-stage damping and deflection suppression and anti-dance control device and method for power transmission lines. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The conductor galloping and wind deviation problems on transmission lines are major challenges facing the power system. They not only affect the safety and reliability of transmission lines, but also pose a significant threat to their normal operation, bringing additional challenges to the maintenance and management of the power system. The potential failures caused by them increase the maintenance cost and frequency, further affecting the operating efficiency of the power system. The specific hazards are mainly reflected in the following aspects:

[0004] Transmission line galloping refers to a low-frequency, large-amplitude self-excited vibration phenomenon caused by conductors under specific conditions, such as icing, wind excitation and other factors. Galloping may lead to a series of serious consequences such as wind-induced flashover tripping of transmission lines, damage to hardware, damage to insulators, broken strands or wires of conductors, and even damage to tower materials and foundations. The occurrence of galloping mainly depends on three factors: icing, wind excitation (wind speed and direction) and line structural parameters. After the conductor is iced, eccentric icing may occur under the action of wind, causing the conductor to twist and oscillate under wind excitation, forming galloping. The occurrence of galloping is not only closely related to meteorological conditions, but also related to factors such as topography, landform, line direction, and tower structure.

[0005] Wind deflection of transmission lines refers to the phenomenon that the conductor deviates from its vertical position due to the action of wind, including jumper wind deflection, phase-to-phase wind deflection and insulator wind deflection. Jumper wind deflection refers to the fact that the jumper on the corner tower is affected by strong winds, which shortens the distance between the jumper and the corner tower, resulting in jumper discharge; phase-to-phase wind deflection refers to the shortening of the electrical distance between conductors under strong wind conditions, resulting in discharge between conductors of different phases; insulator wind deflection angle refers to the tilt angle of the insulator string relative to the tower under the action of wind. Severe meteorological conditions are the cause of wind deflection flashover accidents. Once a wind deflection trip occurs, its combined power is low, and the probability of line shutdown is relatively high.

[0006] In order to solve the problems of transmission line sway and wind deviation, measures such as adding weights and pulling wires are often used in actual projects to suppress the bad vibration of the conductors. Among them, adding weights can increase the vertical load of the line, improve the stability of the line under the action of wind and other external forces, reduce swaying and vibration, and reduce the dynamic load caused by wind, but it will increase the overall weight of the transmission line and increase the complexity of maintenance. In addition, under certain extreme weather or terrain conditions, the weights cannot play the expected role; pulling wires effectively increase the stability of the transmission line, which is suitable for different environments and needs, reduces line swaying and vibration, improves the stability of power transmission, and reduces power loss, but the later maintenance cost is too high. Due to changes in wind speed, the pulling wires will be too tight or too loose, and cannot cope with winds of different amplitudes. Summary of the invention

[0007] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a multi-stage damping deflection suppression and anti-dancing control device for transmission lines. By controlling the multi-stage damping devices to start working from low amplitude to high amplitude respectively, and finally working together at high amplitude, it can be used to suppress the wind deflection problem of transmission lines and prevent the transmission lines from dancing, thus making up for the shortcomings of traditional vibration reduction measures.

[0008] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0009] In the first aspect, an embodiment of the present invention provides a multi-stage damping deflection and anti-dance control device for a transmission line, comprising a control system, the control system being elastically connected to a multi-stage energy dissipation mechanism, the control system being connected to one end of a first pull wire, the other end of the first pull wire being used to connect to the transmission line and being provided with a monitoring system, the monitoring system being connected to the control system to transmit the collected information to the control system, the multi-stage energy dissipation mechanism being elastically connected to a support plate, the support plate being connected to one end of a second pull wire, the other end of the second pull wire being used to connect to a ground foundation, the multi-stage energy dissipation mechanism comprising an outer shell, both sides of the outer shell being elastically connected to the control system and the support plate respectively, a collision friction damping component as well as an eddy current damping component and a magnetorheological fluid damping component connected to the control system being provided in the outer shell.

[0010] Optionally, the monitoring system includes two vertically arranged fans, a speed detection element is installed on the fan shaft, the fan impeller can accept wind load to drive the shaft to rotate, and the speed detection element can obtain the shaft speed to obtain the wind speed through the shaft speed.

[0011] Optionally, the monitoring system is fixed to a hook at the end of the first pull wire, and the hook is used to be connected to the transmission line.

[0012] Optionally, a magnetorheological fluid damping component is arranged in the middle of the shell, eddy current damping components are arranged on both sides of the magnetorheological fluid damping component, and a collision friction damping component is arranged on the outer side of the eddy current damping component.

[0013] Optionally, a partition is provided in the outer shell, and the partition and the shell wall of the outer shell form a collision chamber for setting a collision friction damping component. A limit baffle is provided in the collision chamber, and the limit baffle is elastically connected to the bottom surface of the collision chamber. A plurality of damping particles of different masses are provided in the collision chamber above the limit baffle.

[0014] Optionally, an elastic buffer layer is provided on the inner side of the collision chamber.

[0015] Optionally, the eddy current damping assembly includes at least one group of iron cores, the same group includes two iron cores fixed to the outer shell and arranged in parallel, an excitation winding is wound around the iron core, a conductor plate is provided in the space between the two iron cores, the conductor plate extends to the bottom of the outer shell and is fixed to the support plate, the conductor plate is slidably connected to the outer shell, and the excitation winding is connected to the power supply element in the control system.

[0016] Optionally, the magnetorheological fluid damping assembly includes a cylinder with a piston slidably connected inside the cylinder, piston rods connected on both sides of the piston, the piston rods extending to the outside of the outer shell, the piston rod on one side connected to the shell of the control system, and the piston rod on the other side connected to the support plate, the piston divides the space in the cylinder into a first space and a second space, magnetorheological fluid is injected into the first space and the second space, the first space and the second space are connected by a connecting pipe, an electromagnetic induction coil is wound around the outer periphery of the cylinder, and the electromagnetic induction coil is connected to the power supply element in the control system.

[0017] Optionally, a first spring is provided between the outer shell and a housing of the control system, and a second spring is provided between the outer shell and the support plate.

[0018] In a second aspect, an embodiment of the present invention provides a working method of the transmission line multi-stage damping and anti-dance control device according to the first aspect:

[0019] The monitoring system monitors the wind speed in real time and transmits the monitored wind speed information to the control system;

[0020] When the wind speed information received by the control system is not greater than a set first threshold, the control system controls the eddy current damping component and the magnetorheological fluid damping component to not work, and performs vibration reduction and energy consumption through the collision friction damping component;

[0021] When the wind speed information received by the control system is greater than a set first threshold value and not greater than a set second threshold value, the control system controls the eddy current damping component to work, and the collision friction damping component and the eddy current damping component work together to reduce vibration and dissipate energy;

[0022] When the wind speed information received by the control system is greater than the second set threshold, the control system controls the eddy current damping component and the magnetorheological fluid damping component to work, and the collision friction damping component, the eddy current damping component and the magnetorheological fluid damping component work together to reduce vibration and consume energy.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The deflection and anti-dance control device of the present invention is provided with a monitoring system, a control system and a multi-stage energy dissipation mechanism, and is provided with a collision friction damping component and an eddy current damping component and a magnetorheological fluid damping component connected to the control system. The monitoring system can obtain the wind speed in real time and transmit it to the control system. The control system can control the collision friction damping component to work alone to reduce vibration and dissipate energy, or the collision friction damping component and the eddy current damping component to work together to reduce vibration and dissipate energy, or the collision friction damping component, the eddy current damping component and the magnetorheological fluid damping component to work together to reduce vibration and dissipate energy. The damping effect can be automatically adjusted according to the wind speed to prevent the damping effect from being too strong or too weak. In the case of changing wind speed, the guy wire is prevented from being over-tightened or over-relaxed, thereby preventing the guy wire from being weakened in the effect of preventing wind deflection and dance.

[0025] 2. In the anti-bias and anti-dance control device of the present invention, in the magnetorheological fluid damping assembly, the spaces on both sides of the piston are connected by a connecting pipe. When the magnetorheological fluid on one side of the piston is squeezed, it will flow into the space on the other side of the piston through the connecting pipe, thereby generating an inertial force, which has the effect of amplifying the damping effect, thereby improving the vibration reduction and energy consumption effect of the magnetorheological fluid damping assembly, and is beneficial to avoiding the dance of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0028] Figure 2 This is a schematic diagram of a multi-stage energy dissipation mechanism according to Embodiment 1 of the present invention;

[0029] Among them, 1. horizontal fan, 2. longitudinal fan, 3. first pull wire, 4. controller, 5. battery, 6. support plate, 7. iron core, 8. excitation winding, 9. conductor plate, 10. damping particles, 11. limit baffle, 12. third spring, 13. connecting ring, 14. first spring, 15. magnetorheological fluid, 16. electromagnetic induction coil, 17. piston, 18. connecting pipe, 19. liquid cylinder, 20. second pull wire, 21. second spring. DETAILED DESCRIPTION

[0030] Example 1

[0031] The embodiment of the present invention provides a multi-stage damping and anti-dance control device, such as Figure 1 As shown, it includes a control system, a monitoring system, a first pull wire 3, a second pull wire 8, a support plate 6 and a multi-stage energy dissipation mechanism. The control system and the multi-stage energy dissipation mechanism are elastically connected through a spring, the top of the multi-stage energy dissipation mechanism is elastically connected to the shell of the control system through a spring, and the bottom of the multi-stage energy dissipation mechanism is elastically connected to the support plate 6 through a spring. The shell of the control system is connected to one end of the first pull wire 3, and the other end of the first pull wire 3 is provided with a hook, which is used to connect to the transmission line. The hook is provided with a monitoring system for monitoring wind speed, and the support plate 6 is connected to one end of the second pull wire 20, and the other end of the second pull wire 20 is used to connect to the ground foundation.

[0032] The control system comprises a housing, in which a controller 4 and a power supply element are arranged. The power supply element is a storage battery 5 for supplying power to the monitoring system and the electrical components in the multi-stage energy consumption mechanism.

[0033] In this embodiment, the monitoring system includes two vertically arranged fans, one is a fan arranged along the longitudinal direction, which is a longitudinal fan 2, and the other is a fan arranged along the transverse direction, which is a transverse fan 1. The fan includes a rotating shaft, which is rotatably connected to a bracket, and the bracket is fixed on a hook at the end of the first pull wire. The rotating shafts of the two fans are vertically arranged, and a plurality of impellers are circumferentially arranged on the rotating shafts. The impellers can accept wind loads and drive the rotating shafts to rotate around the axis of the rotating shafts under the action of the wind loads. A speed detection element is installed on the rotating shaft. The speed detection element can use an existing speed sensor. The speed sensor is connected to the controller in the control system through a signal line, and is used to transmit the collected speed information to the controller 4. The controller 4 can convert the speed into wind speed according to the received speed information in combination with the existing flow rate calculation formula, thereby realizing real-time acquisition of wind speed.

[0034] The monitoring system uses this method to obtain wind speed, which has a simple structure and low cost, and is suitable for general meteorological observation and environmental monitoring. The winds that have the greatest impact on transmission lines are mainly lateral winds and longitudinal winds. Therefore, in this embodiment, the longitudinal and lateral fans are used for joint monitoring to form a cross coordinate axis, which can measure and control the wind speed in any direction of the horizontal circumference.

[0035] like Figure 2 As shown, the multi-stage energy dissipation mechanism is internally provided with a collision friction damping component and an eddy current damping component and a magnetorheological fluid damping component connected to a control system.

[0036] The multi-stage energy dissipation mechanism of this embodiment is divided into three levels, from low to high level, namely collision friction damping component, eddy current damping component and magnetorheological fluid damping component. They start working in sequence depending on the wind speed. When the higher-level damping component is working, the lower-level damping component does not stop working, but cooperates with the higher-level damping component to work.

[0037] When wind deflection is about to occur, energy is mainly consumed by the collision of the collision friction damping component. When the amplitude increases further, the entire control device shows obvious relative displacement. When the wire dances slightly, the eddy current damping component starts to work. Within a wider speed range, the eddy current damping component can provide a relatively stable damping effect. When the wire dances more violently, the magnetorheological fluid damping component works to cope with low-frequency wind vibrations of different frequencies.

[0038] Specifically, the multi-stage energy dissipation mechanism includes a shell, and the top shell wall of the shell is elastically connected to the bottom of the shell of the control system. Specifically, a first spring 14 is provided between the top shell wall of the shell and the bottom of the shell of the control system, and the elastic connection between the control system shell and the shell of the multi-stage energy dissipation mechanism is achieved through the first spring 14. One end of the first spring 14 is fixedly connected to the top shell wall of the shell, and the other end is connected to the bottom of the shell of the control system through a connecting ring 13.

[0039] A plurality of second springs 21 are provided between the shell of the multi-stage energy dissipation mechanism and the support plate 6 , and the shell of the multi-stage energy dissipation mechanism and the support plate 6 are elastically connected via the plurality of second springs 21 .

[0040] A collision friction damping component, an eddy current damping component and a magnetorheological fluid damping component are arranged inside the shell.

[0041] A magnetorheological fluid damping component is arranged in the middle of the inner space of the shell, eddy current damping components are arranged on both sides of the magnetorheological fluid damping component, and a collision friction damping component is arranged on the outer side of the eddy current damping component.

[0042] Partitions are provided on both sides of the internal space of the shell, and a collision chamber for setting a collision friction damping component is formed between the partition and the side shell wall of the shell, the inner cavity surface of the collision chamber is provided with an elastic buffer layer, preferably, the elastic buffer layer is made of rubber material, a limit baffle 11 is provided in the collision chamber, the limit baffle is slidably connected to the cavity surface of the collision chamber, the limit baffle can move in the collision chamber, the limit baffle 11 is elastically connected to the bottom cavity surface of the collision chamber through a third spring 12, the third spring 12 is arranged in parallel with the first spring 14 and the second spring 21, a plurality of damping particles 10 with different masses are provided in the collision chamber space above the limit baffle 11, the damping particles 10 have different masses, and their own natural frequencies are also different, and can play a collision energy dissipation and vibration reduction effect in the face of different high-frequency wind vibrations, in this embodiment, the damping particles 10 are steel balls, and the steel balls are covered with SMA material, SMA material (shape memory alloy) is an intelligent material with unique memory function, which can restore its original shape under specific conditions.

[0043] In this embodiment, the collision and friction damping component consumes vibration energy through collision and friction, thereby reducing the vibration amplitude of the structure. When the transmission line is vibrated by wind, the collision damping component utilizes the friction between the damping particles and the surrounding collision chamber surfaces and the collision between the damping particles and the limit baffle to absorb and dissipate energy, and eventually the vibration gradually weakens until it stops.

[0044] The eddy current damping component includes two groups of iron cores 7, which are respectively located on both sides of the magnetorheological fluid damping component. The same group includes two parallel iron cores 7, which are vertically fixed to the inner side of the top shell wall of the shell. An excitation winding 8 is wound on the iron core 7. A conductor plate 9 is provided in the space between the two iron cores. The conductor plate 9 is arranged parallel to the iron core 7. The conductor plate 9 passes through the bottom shell wall of the shell and is fixedly connected to the support plate 6. The conductor plate 9 is slidably connected to the bottom shell wall of the shell. The excitation winding 8 is connected to the battery 5 in the control system through a power supply line and is powered by the battery 5.

[0045] The eddy current damping component is a device that uses the principle of electromagnetic induction to control vibration. Its working principle is mainly based on the law of electromagnetic induction. Specifically, when the conductor plate 9 of the eddy current damping component moves in a fixed magnetic field, the movement of the conductor plate 9 causes the generation of eddy currents. These eddy currents will generate electromagnetic forces in the opposite direction of the movement, thereby slowing down the speed of the conductor plate 9 and playing a damping role. Since the intensity of the eddy current is proportional to the movement speed and the magnetic field strength, the damping characteristics of the eddy current damping component have the ability to be dynamically adjusted.

[0046] The magnetorheological damping component includes a cylinder 19, which is fixed in the middle of the outer shell. A piston 17 is arranged in the cylinder 19. The piston 17 is slidably connected to the inner surface of the cylinder 19. The piston 17 can move along the axis of the cylinder 19. Piston rods are coaxially arranged on both sides of the piston 17. The bottom end of the piston rod above the piston is fixedly connected to the center position of the upper surface of the piston. The piston rod passes through the cylinder 19 and the outer shell and is fixedly connected to the bottom of the housing of the control system. The top end of the piston rod located below is fixedly connected to the center position of the lower surface of the piston. The piston rod passes through the cylinder and the outer shell and is fixedly connected to the top surface of the support plate 6.

[0047] The piston 17 divides the space in the liquid cylinder into a first space and a second space, and magnetorheological fluid 15 is provided in both the first space and the second space.

[0048] Furthermore, in order to form an inertia system and amplify the damping effect, the first space and the second space are connected through a connecting pipe 18 located outside the liquid cylinder. By setting the connecting pipe 18, the magnetorheological fluid is used as the liquid of the liquid inertia, so that the whole system is seamless. When the structure begins to have obvious relative displacement under the action of wind force, the piston moves accordingly, and the liquid inertia begins to provide a larger inertia coefficient, which plays the effect of amplifying the damping effect.

[0049] The liquid inertia is a structural vibration control device based on an inertia element. Its working principle is to achieve vibration control by utilizing the characteristics related to the acceleration of the two end points. Its basic structure includes two external connecting pipes, and the inertia force is generated by the flow of liquid in the pipes. When the two end points of the device move relative to each other, the liquid flows in the pipes and generates an inertia force, which is proportional to the relative acceleration of the two end points. This structure enables the liquid inertia to play a role in vibration control and optimize the performance of the system by adjusting the inertia coefficient.

[0050] The outer periphery of the liquid cylinder 19 is coaxially provided with a winding drum, which is fixed inside the shell. An electromagnetic induction coil 16 is wound on the winding drum. The electromagnetic induction coil 16 is connected to the battery 5 through a power supply line and is powered by the battery 5.

[0051] The working principle of the magnetorheological fluid damping component is based on the magnetorheological effect, that is, the rheological properties of the magnetorheological fluid will change under the action of the magnetic field. When the electromagnetic induction coil 16 is energized, the strong magnetic field generated causes the magnetic fluid to form a chain and mesh structure, thereby generating resistance to the direction of movement. As the current changes, the magnetic field strength will also change accordingly, causing the magnetic fluid to gradually return to a liquid state, thereby adjusting the damping value. At the same time, a pressure-driven mode is adopted, and the magnetorheological fluid passes through a fixed magnetic pole under pressure, and the direction of flow is perpendicular to the direction of the magnetic field. By changing the current of the electromagnetic induction coil 16, the change of the magnetic field can be controlled, so that the flow properties of the magnetorheological fluid change, thereby achieving precise control of the damping force. This design enables the magnetorheological fluid damping component to quickly adjust the damping effect as needed, improve the stability and responsiveness of the system, and at the same time, the piston 17 pushes the magnetorheological fluid to reciprocate in the liquid cylinder. At the same time, when it is squeezed to one side of the liquid cylinder 19, the liquid will flow into the other side of the liquid cylinder 19 through the connecting pipe 18, thereby generating an inertial force, which plays a role in amplifying the damping effect.

[0052] Example 2

[0053] This embodiment provides a working method of the multi-stage damping and anti-dance control device described in Embodiment 1:

[0054] The monitoring system monitors the wind speed in real time and transmits the monitored wind speed information to the control system;

[0055] Specifically, the transverse fan 1 is used to monitor the transverse wind speed, and the longitudinal fan 2 is used to monitor the longitudinal wind speed, forming a cross coordinate axis, measuring and controlling the wind speed in any direction of the horizontal circle, and transmitting the wind speed and wind frequency to the controller to start working.

[0056] When the wind speed information received by the controller 4 is not greater than the set first threshold, the controller controls the eddy current damping component and the magnetorheological fluid damping component to not work, and performs vibration reduction and energy consumption through the collision friction damping component;

[0057] Specifically, when the wind speed is not greater than the set first threshold value, that is, when the wire is about to deflect, the damping particles 10 can resonate with various high-frequency winds by using their own different natural frequencies, and the damping particles collide with each other. When the vibration energy is large enough, the damping particles will collide with the elastic buffer layer on the inner side of the collision chamber, and at the same time, the third spring pushes the limit baffle 11 back and forth, so that the space where the damping particles are located is compressed and stretched back and forth, and further collision consumes energy;

[0058] When the wind speed information received by the controller 4 is greater than the set first threshold value and not greater than the set second threshold value, the control system controls the eddy current damping component to work, and the collision friction damping component and the eddy current damping component work together to reduce vibration and dissipate energy;

[0059] Specifically, the controller 4 controls the battery 5 to supply power to the excitation winding 8, so that the eddy current damping component starts to work, and the conductor plate 9 starts to reciprocate in the fixed magnetic field due to the vibration of the first spring 14 and the second spring 21, thereby generating eddy currents. These eddy currents will generate electromagnetic forces in the opposite direction of the movement, thereby slowing down the speed of the conductor plate and playing a damping role;

[0060] When the wind speed information received by the controller 4 is greater than the second set threshold, that is, when wind yaw is about to occur, it is mainly low-frequency and high-amplitude wind of different frequencies. At this time, the control system controls the eddy current damping component and the magnetorheological fluid damping component to work, and the collision friction damping component, the eddy current damping component and the magnetorheological fluid damping component work together to reduce vibration and consume energy.

[0061] Specifically, the controller 4 controls the battery 5 to supply power to the electromagnetic induction coil 16, so that the magnetorheological fluid damping component starts to work. The electromagnetic induction coil 16 generates a corresponding electromagnetic field according to the frequency of the incoming wind. Due to the vibration of the first spring 14 and the second spring 21, the magnetorheological fluid 15 starts to move under the reciprocating push of the piston 17. The strong magnetic field causes the magnetic fluid to undergo rheological phenomena, forming a large number of chain structures and network structures, which generate resistance to movement in the direction of movement.

[0062] The control device and working method of this embodiment, the multi-level energy dissipation mechanism is divided into three levels, from low to high, respectively, collision friction damping, eddy current damping, and magnetorheological damping. The wind amplitude determines the order in which they start to work. When the high-level damping works, the low-level damping does not stop, but cooperates with the high-level damping to work. When wind deflection is about to occur, the energy is consumed mainly by the collision of the damping particles in the collision friction damping component, and because each damping particle 10 has its own different inherent frequency, it can cope with high-frequency wind vibrations of different frequencies; when the amplitude is further increased, the device has obvious relative displacement, and the wire dances slightly, the eddy current damping component starts to work. Within a wide speed range, the eddy current damper can provide a relatively stable damping effect. Due to the rapid electromagnetic induction reaction, it can achieve effective damping under instantaneous changes; when the wire dances greatly, the magnetorheological damping component changes the rheological characteristics of the magnetorheological fluid under the action of the magnetic field by receiving the wind speed and wind frequency data detected by the controller, and generates resistance to the movement in the direction of movement, which can cope with low-frequency wind vibrations of different frequencies.

[0063] The control device of this embodiment can automatically adjust the strength of the damping effect according to the wind speed to prevent the damping effect from being too strong or too weak. When the wind speed changes, it avoids the guy wire from being over-tightened or over-relaxed, thereby avoiding weakening the guy wire's effect of preventing wind deviation and dancing.

[0064] In a further embodiment, the rotating shafts of the transverse fan 1 and the longitudinal fan 2 can also be connected to a generator fixed on a bracket, and the generator is connected to a battery 5 to charge the battery, thereby realizing the use of wind power generation as a supplementary power source and enhancing the stability of the overall operation.

[0065] The generator can adopt the existing technology, which will not be described in detail here.

[0066] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transmission line multi-stage damping and anti-dance control device, characterized in that: The invention comprises a control system, which is elastically connected to a multi-stage energy dissipation mechanism, the control system is connected to one end of a first pull wire, the other end of the first pull wire is used to connect a transmission line and is provided with a monitoring system, the monitoring system is connected to the control system to transmit the collected information to the control system, the multi-stage energy dissipation mechanism is elastically connected to a support plate, the support plate is connected to one end of a second pull wire, the other end of the second pull wire is used to connect a ground foundation, the multi-stage energy dissipation mechanism comprises an outer shell, both sides of the outer shell are elastically connected to the control system and the support plate respectively, a collision friction damping component and an eddy current damping component and a magnetorheological fluid damping component connected to the control system are provided in the outer shell.

2. A transmission line multi-stage damping and deflection suppression control device as claimed in claim 1, characterized in that: The monitoring system includes two vertically arranged fans, a rotation speed detection element is installed on the rotating shaft of the fan, the impeller of the fan can receive wind load to drive the rotating shaft to rotate, and the rotation speed detection element can obtain the rotation speed of the rotating shaft to obtain the wind speed through the rotating shaft speed.

3. A transmission line multi-stage damping and deflection suppression control device as claimed in claim 1, characterized in that: The monitoring system is fixed on a hook at the end of the first pull line, and the hook is used for being connected with the transmission line.

4. A transmission line multi-stage damping and deflection suppression control device as claimed in claim 1, characterized in that: A magnetorheological fluid damping component is arranged at the middle position in the shell, eddy current damping components are arranged on both sides of the magnetorheological fluid damping component, and a collision friction damping component is arranged on the outer side of the eddy current damping component.

5. A transmission line multi-stage damping and deflection suppression control device as claimed in claim 1, characterized in that: A partition is arranged in the shell, and the partition and the shell wall of the shell form a collision chamber for setting a collision friction damping component. A limit baffle is arranged in the collision chamber, and the limit baffle is elastically connected to the bottom surface of the collision chamber. A plurality of damping particles of different masses are arranged in the collision chamber above the limit baffle.

6. A transmission line multi-stage damping and deflection suppression control device as claimed in claim 5, characterized in that: An elastic buffer layer is arranged on the inner side of the collision chamber.

7. A transmission line multi-stage damping and deflection suppression control device as claimed in claim 1, characterized in that: The eddy current damping assembly includes at least one group of iron cores, and the same group includes two iron cores fixed to the shell and arranged in parallel, the iron cores are wound with excitation windings, and the space between the two iron cores is provided with a conductor plate, which extends to the bottom of the shell and is fixed to the support plate. The conductor plate is slidably connected to the shell, and the excitation winding is connected to the power supply element in the control system.

8. A transmission line multi-stage damping and deflection suppression control device as claimed in claim 1, characterized in that: The magnetorheological fluid damping component includes a cylinder, a piston is slidably connected in the cylinder, piston rods are connected on both sides of the piston, the piston rods extend to the outside of the shell, the piston rod on one side is connected to the shell of the control system, and the piston rod on the other side is connected to the support plate, the piston divides the space in the cylinder into a first space and a second space, magnetorheological fluid is injected into the first space and the second space, the first space and the second space are connected through a connecting pipe, an electromagnetic induction coil is wound around the outer circumference of the cylinder, and the electromagnetic induction coil is connected to the power supply element in the control system.

9. A transmission line multi-stage damping and deflection suppression control device as claimed in claim 1, characterized in that: A first spring is arranged between the shell and the housing of the control system, and a second spring is arranged between the shell and the support plate.

10. A working method of the transmission line multi-stage damping and anti-drifting control device according to any one of claims 1 to 9, characterized in that: The monitoring system monitors the wind speed in real time and transmits the monitored wind speed information to the control system; When the wind speed information received by the control system is not greater than a set first threshold, the control system controls the eddy current damping component and the magnetorheological fluid damping component to not work, and performs vibration reduction and energy consumption through the collision friction damping component; When the wind speed information received by the control system is greater than a set first threshold value and not greater than a set second threshold value, the control system controls the eddy current damping component to work, and the collision friction damping component and the eddy current damping component work together to reduce vibration and dissipate energy; When the wind speed information received by the control system is greater than the second set threshold, the control system controls the eddy current damping component and the magnetorheological fluid damping component to work, and the collision friction damping component, the eddy current damping component and the magnetorheological fluid damping component work together to reduce vibration and consume energy.

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