A phase energy dissipation anti-dancing system based on adaptive double pendulum and intelligent pneumatic thrust

Abstract

The application discloses an interphase energy consumption anti-dancing system based on adaptive double pendulums and intelligent pneumatic thrust, and belongs to the technical field of power transmission line disaster prevention and reduction. The system integrates four function modules of intelligent monitoring control, adaptive double pendulums, intelligent pneumatic thrust and energy consumption. The intelligent monitoring control system is composed of sensing monitoring integration, inductive power taking CT, super capacitor group, backup battery and connecting components, can realize real-time sensing of the dancing state of the conductor and coordinated control of the system; the adaptive double pendulum system dynamically adjusts the pendulum length to match the dancing frequency through components such as a pendulum shaft, a miniature winch, a sliding guide rail, a swing arm and a pendulum bob, and realizes efficient energy transfer and suppression by using the resonance principle; the energy consumption system combines the magneto-rheological damping and the eddy current damping mechanism, and reduces the power impact and the risk of structural damage through a parallel cooperative working mode. The system has comprehensive anti-dancing capabilities of sensing and prediction, adaptive adjustment and multi-mode intervention.

Description

Technical Field

[0001] This invention relates to the field of disaster prevention and mitigation for power transmission lines, specifically to an interphase energy dissipation and anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] As a key component of the power system, transmission lines play a vital role in the transmission and distribution of electrical energy, and their stable operation is directly related to national energy security and the normal functioning of social and economic life. However, because transmission lines are exposed to the natural environment for extended periods, they are prone to conductor galloping under certain meteorological conditions, posing a significant threat to the safety and reliability of the system, while also increasing the complexity and cost of operation and maintenance.

[0004] Transmission line galloping refers to a low-frequency, large-amplitude self-excited vibration phenomenon that occurs in conductors under specific conditions, such as icing and wind excitation. This phenomenon typically requires the simultaneous influence of three important conditions: conductor icing, especially eccentric icing with asymmetrical cross-sections; continuous wind excitation with a certain speed and direction; and the structural parameters and dynamic characteristics of the line itself. Furthermore, topographical and engineering factors such as terrain, line alignment, and tower structure also significantly affect the probability and vibration pattern of galloping.

[0005] The dynamic energy generated by the galloping of transmission lines has strong engineering destructive potential, mainly in the following aspects: First, the large swing of the conductor will cause the electrical distance between phases to decrease sharply, which can easily trigger flashover discharge, causing line tripping and seriously affecting the continuity of power supply; Second, during the galloping process, the hardware, insulators and tower components are subjected to alternating mechanical stress, which can easily induce metal fatigue, component damage or even fracture over a long period of time; In addition, the conductor itself may also suffer permanent damage such as strand breakage and wire breakage due to continuous bending and torsional loads; In extreme cases, strong and continuous galloping may also cause damage to the tower head structure or foundation failure, ultimately leading to catastrophic accidents such as tower collapse.

[0006] To address the practical needs of transmission line galloping prevention, passive control measures such as installing phase-to-phase spacers or anti-galloping devices are commonly used in engineering projects. Phase-to-phase spacers, currently the most widely used and direct anti-galloping device, forcibly constrain the relative displacement between phase conductors through rigid connections, strictly limiting the phase-to-phase distance within a safe range. However, the excessive rigidity of this device can introduce significant dynamic loads during galloping, easily leading to localized stress concentration in the transmission line. Anti-galloping devices, by altering the mass distribution and frequency characteristics of the conductor system, disrupt the dynamic coordination conditions required for sustained galloping, thereby suppressing the amplitude of galloping at its source and even preventing galloping altogether. However, the anti-galloping effect of such devices highly depends on the precise design of preset parameters and is difficult to adaptively adjust according to real-time operating conditions such as galloping intensity and frequency, resulting in a certain degree of uncertainty and instability in their protective performance. Summary of the Invention

[0007] In order to solve the technical problems existing in the prior art, the present invention aims to provide an interphase energy dissipation anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust, so as to solve in whole or in part the problems of poor effect and difficulty in implementation in the existing conductor galloping suppression technology.

[0008] To achieve the above objectives, this invention proposes an interphase energy dissipation anti-galling system based on adaptive double pendulum and intelligent aerodynamic thrust, which mainly includes an intelligent monitoring and control system, an adaptive double pendulum system, an intelligent aerodynamic thrust system, and an energy dissipation system. The energy-consuming system is connected to the intelligent monitoring and control system at both ends through an intelligent aerodynamic thrust system. The intelligent monitoring and control system is installed on the power transmission line to acquire the galloping motion mode of the power transmission line in real time. The adaptive double pendulum system is connected to the intelligent monitoring and control system. The adaptive double pendulum system is used to achieve dynamic and precise adjustment of the pendulum length parameter and to suppress the galloping of the transmission line using the resonance effect. It includes a pendulum shaft, a fixed connecting plate, a miniature winch, a sliding guide rail, a pendulum arm, and a pendulum weight. The middle of the pendulum shaft is fixedly connected to the intelligent monitoring and control system. Fixed connecting plates are hinged to both ends of the pendulum shaft. The fixed connecting plates have a triangular structure, with their apex connected to the end of the pendulum shaft. Sliding guide rails are hinged to both base corners of the fixed connecting plates. A pendulum arm is mounted on the sliding guide rail, and a pendulum weight is mounted at the bottom of the pendulum arm. A miniature winch is mounted on the fixed connecting plate, and the miniature winch drives the pendulum arm to linearly displace along the sliding guide rail via a traction cable.

[0009] As a further technical solution, the intelligent monitoring and control system includes a sensor monitoring integration, a connecting clamp, and a connecting rod; the connecting clamp is clamped on the power transmission line, and a sensor monitoring integration is set on the connecting clamp; a connecting rod is arranged radially on the outer ring of the connecting clamp; one connecting rod is connected to the intelligent pneumatic thrust system; the other connecting rod is connected to the pendulum shaft of the adaptive double pendulum system.

[0010] As a further technical solution, the connecting clamp is also connected to the inductive power CT via a power harvesting connector; the inductive power CT is installed on the outer ring of the power transmission line.

[0011] As a further technical solution, the inductive energy harvesting CT includes two units, located on both sides of the connecting clamp; each inductive energy harvesting CT is connected to the connecting clamp via an energy harvesting connector.

[0012] As a further technical solution, the intelligent pneumatic thrust system includes a miniature air compressor, a pneumatic piston, a pneumatic cavity, a pneumatic fixed support rod, a pneumatic push shaft, a pneumatic protective shell, and a pneumatic positioning disc; One end of the pneumatic protective housing is connected to the pneumatic positioning plate via several pneumatic fixed support rods. The pneumatic protective housing is connected to a miniature air compressor, forming a pneumatic cavity inside. A pneumatic piston is installed inside the pneumatic protective housing, and the pneumatic piston is connected to a pneumatic push shaft. The other end of the pneumatic push shaft passes through the end of the pneumatic protective housing and the pneumatic positioning plate.

[0013] As a further technical solution, the pneumatic push shaft is connected to the energy-consuming system.

[0014] As a further technical solution, the energy-consuming system is composed of a magnetorheological damper and an eddy current damper to achieve spatial coordination and complementary performance.

[0015] As a further technical solution, the energy-consuming system includes a damping piston, an eddy current conductor support, an eddy current magnetic cavity, a magnetorheological cavity, a damping push shaft, an eddy current permanent magnet shell, a magnetorheological sealing shell, a magnetorheological push rod, a damping piston connecting rod, and a push plate. The magnetorheological sealing shell contains a coaxially arranged eddy current permanent magnet shell. The annular gap formed between the eddy current permanent magnet shell and the magnetorheological sealing shell constitutes the magnetorheological cavity. A damping piston and magnetorheological fluid are disposed within the magnetorheological cavity. The damping piston is connected to the push plate via a magnetorheological push rod extending to the outside of the magnetorheological sealing shell. Inside the eddy current permanent magnet shell is the eddy current magnetic cavity. The eddy current conductor support is located within the eddy current magnetic cavity and is connected to the damping push shaft. The damping push shaft passes through the center of the magnetorheological sealing shell and is connected to the push plate.

[0016] As a further technical solution, the multiple damping pistons are connected in series via a damping piston connecting rod. A magnetorheological push rod is provided on the outer ring of the damping piston at one end. The multiple magnetorheological push rods pass through the magnetorheological sealing shell and are connected to the push plate.

[0017] The beneficial effects of this invention are: The intelligent monitoring and control system of this invention achieves a leap from passive response to active prediction and adaptive intervention, significantly improving the intelligence level and forward-looking defense capabilities of anti-galloping systems. The adaptive double-pendulum system of this invention achieves efficient galloping suppression through dynamic tuning. Based on the real-time galloping frequency provided by the intelligent monitoring and control system, the system dynamically adjusts the pendulum length via a miniature winch, actively matching its natural frequency with the main frequency of the conductor galloping, thus constructing a resonant system. In this state, the conductor galloping energy is efficiently transferred to the pendulum arm and pendulum, not only significantly suppressing the current galloping amplitude but also giving the system wideband adaptive capability, enabling it to continuously track changes in the galloping frequency and overcoming the shortcomings of traditional fixed-parameter devices in adapting to complex working conditions.

[0018] The intelligent pneumatic thrust system of this invention provides rapid and powerful direct active control capabilities. By precisely regulating the pressure of the pneumatic cavity, it generates a controllable thrust opposite to the direction of galloping, directly acting on the transmission line to counteract its kinetic energy. The inherent high power density of pneumatic transmission ensures the system's rapid response capability, enabling it to track and suppress galloping in real time. This direct force intervention method is particularly suitable for suppressing large-amplitude galloping and providing emergency protection when safety thresholds are exceeded. It effectively complements the energy transfer mechanism of the double-pendulum system, jointly constructing a multi-layered anti-galloping system.

[0019] The energy dissipation system of this invention achieves a high-efficiency energy dissipation terminal with wide frequency range, high energy density, and both passive stability and active adjustability by deeply integrating two dampers with different energy dissipation mechanisms in both structure and function. This integrated structure places the eddy current damper in the inner layer and the magnetorheological damper in the outer layer, achieving optimal space utilization and functional synergy under limited space constraints. The damping force of the eddy current damper increases linearly with the motion speed, providing stable and reliable basic energy dissipation without external energy input. Its innovative double-layer conductor support design significantly increases energy dissipation efficiency by improving the utilization of magnetic field space. The parallel magnetorheological damper utilizes the field-induced rheological properties of the magnetorheological fluid to achieve continuous and reversible adjustment of its damping force over a wide range, endowing the entire system with active and adaptive energy dissipation capabilities to cope with low-frequency, large-amplitude, and impact-induced vibrations. This composite design not only greatly improves the energy dissipation density per unit volume and the overall reliability of the system, but also effectively protects the transmission line and its hardware structure by ultimately converting the captured galloping mechanical energy into heat energy, avoiding fatigue damage and dynamic overload risks, and ensuring the long-term effectiveness and structural safety of the anti-galloping system. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0021] Figure 1 A three-dimensional structural diagram of an interphase energy dissipation anti-dance system based on adaptive double pendulum and intelligent aerodynamic thrust; Figure 2 A three-dimensional structural diagram of an intelligent monitoring and control system based on an adaptive double pendulum and intelligent aerodynamic thrust phase dissipation anti-collision system, and the adaptive double pendulum system. Figure 3 A three-dimensional structural diagram of an intelligent monitoring and control system for an interphase energy dissipation anti-galling system based on an adaptive double pendulum and intelligent aerodynamic thrust; Figure 4 , Figure 5 A cross-sectional view and a three-dimensional structural diagram of an intelligent aerodynamic thrust system based on an adaptive double pendulum and intelligent aerodynamic thrust phase dissipation anti-collision system. Figure 6 , Figure 7 A cross-sectional view and a three-dimensional structural diagram of an energy dissipation system for an interphase energy dissipation and anti-galling system based on adaptive double pendulum and intelligent aerodynamic thrust. Figure 8 , Figure 9 This is an internal structural diagram of an energy dissipation system for an interphase energy dissipation and anti-galling system based on adaptive double pendulum and intelligent aerodynamic thrust. Figure 10 , Figure 11 This is a component diagram of an energy dissipation system for an interphase energy dissipation and anti-galling system based on adaptive double pendulum and intelligent aerodynamic thrust. Among them, 1. Intelligent monitoring and control system, 2. Adaptive double pendulum system, 3. Intelligent pneumatic thrust system, 4. Energy consumption system, 5. Sensor monitoring integration, 6. Supercapacitor bank and backup battery, 7. Inductive energy harvesting CT, 8. Connecting clamp, 9. Connecting rod, 10. Transmission wire, 11. Pendulum shaft, 12. Fixed connecting plate, 13. Miniature winch, 14. Sliding guide rail, 15. Swing arm, 16. Pendulum, 17. Energy harvesting connector, 18. Miniature air compressor, 19. Pneumatic piston, 20. Pneumatic cavity, 21. Pneumatic fixed support rod, 22. Pneumatic push shaft, 23. Pneumatic protective housing, 24. Pneumatic positioning plate, 25. Damping piston, 26. Eddy current conductor support foot, 27. Eddy current magnetic cavity, 28. Magnetorheological cavity, 29. Damping push shaft, 30. Eddy current permanent magnet housing, 31. Magnetorheological sealing housing, 32. Magnetorheological push rod, 33. Damping piston connecting rod, 34. Push plate. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0023] This embodiment proposes an interphase energy dissipation anti-galloping system based on an adaptive double pendulum and intelligent pneumatic thrust. The system acquires the galloping motion pattern of the transmission line in real time through an intelligent monitoring and control system. Based on predictive analysis of the galloping trajectory and the rate of change of interphase distance, it dynamically controls the adaptive double pendulum system and the intelligent pneumatic thrust system to achieve active anti-galloping. The adaptive double pendulum system can adjust the pendulum length by driving the pendulum arm along the sliding guide rail with a miniature winch according to the galloping state, thereby optimizing its vibration suppression performance. The intelligent pneumatic thrust system, based on the galloping monitoring information, uses a miniature air compressor to precisely control the air pressure inside the pneumatic cavity, achieving directional push-pull movements to counteract the conductor movement. Furthermore, the system integrates a dual damping energy dissipation mechanism of magnetorheology and eddy currents, effectively reducing the dynamic impact and potential damage to the structure by synergistically dissipating galloping energy.

[0024] See Figure 1 — Figure 7As shown in the figure, an interphase energy-dissipating anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust provided by an embodiment of the present invention includes an intelligent monitoring and control system 1, an adaptive double pendulum system 2, an intelligent aerodynamic thrust system 3, and an energy-dissipating system 4. The intelligent monitoring and control system 1 is installed on the power transmission line 10, and the adaptive double pendulum system 2 is connected to the intelligent monitoring and control system 1. The intelligent monitoring and control system 1 is also connected to the energy-dissipating system 4 through the intelligent aerodynamic thrust system 3. Specifically, an intelligent monitoring and control system 1 is installed on each of two adjacent power transmission lines 10, and the two intelligent monitoring and control systems 1 are respectively connected to one intelligent aerodynamic thrust system 3. The two intelligent aerodynamic thrust systems 3 are connected to one energy-dissipating system 4. The intelligent monitoring and control system acts as the "brain," sensing and making decisions in real time; the adaptive double pendulum and intelligent aerodynamic thrust system act as the "actuator," suppressing the swinging motion from the aspects of energy transfer and direct force intervention, respectively; and the energy dissipation system acts as the "energy terminal," converting mechanical energy into heat energy for dissipation.

[0025] The intelligent monitoring and control system employs a MEMS-based high-precision, low-noise, wide-bandwidth digital output triaxial accelerometer for data acquisition, and utilizes its built-in artificial intelligence kernel to perform preliminary motion pattern recognition at the edge. The system uses a frequency domain integral correction algorithm to process the raw acceleration signal, specifically by converting the signal to the frequency domain via Fast Fourier Transform (FFT) and then reconstructing it into a displacement-time history curve in the time domain via inverse transform. Based on the reconstructed galloping trajectory and the rate of change of phase distance, the system can predict the phase distance and activate the intelligent aerodynamic thrust system when the predicted value falls below a safety threshold, achieving active protection. Simultaneously, the system feeds back the real-time identified galloping frequency to the control algorithm, dynamically adjusting the pendulum length to achieve resonance-based galloping suppression. In terms of power supply design, the system uses an inductive energy harvesting CT for efficient energy harvesting under low-current conditions, prioritizing power supply to the control system. Excess energy is stored in a supercapacitor, and backup batteries provide continuous power support in case of emergencies.

[0026] The adaptive double pendulum system, serving as the anti-galling execution unit, functions by dynamically and precisely adjusting the pendulum length parameters based on real-time commands from the intelligent monitoring and control system. The system employs a miniature winch as a servo drive mechanism, precisely pulling the double pendulum arms along a preset sliding guide rail, thereby linearly adjusting their effective pendulum length. This adjustment mechanism enables the system's natural frequency to actively match the dominant frequency of the conductor galloping, inducing a resonance effect. In this state, the system efficiently transfers and dissipates the mechanical energy of the conductor galloping to the pendulum arms and bobbers, thus actively suppressing the conductor galloping amplitude, achieving energy decoupling, and significantly enhancing anti-galling performance and adaptability to operating conditions.

[0027] As a key unit for suppressing conductor galloping, the intelligent pneumatic thrust system's core function is to dynamically and precisely adjust the air pressure within a sealed pneumatic cavity based on real-time commands from the intelligent monitoring and control system. The system uses a miniature air compressor as its core servo drive mechanism, achieving rapid establishment and release of working air pressure within the cavity through precise control of the inflation and deflation processes. This pressure change is converted into precise and controllable linear motion of the pneumatic thrust shaft within the system via a pneumatic piston. Utilizing this bidirectional actuation mechanism, the system can apply an adjustable active control force to the power transmission line, opposite to the direction of galloping, to counteract the conductor's kinetic energy. This achieves active intervention and dynamic suppression of conductor movement, thereby improving the system's galloping performance and adaptability under complex operating conditions.

[0028] The energy dissipation system employs an integrated composite structure combining a magnetorheological damper and an eddy current damper in parallel to achieve spatial synergy and complementary efficiency. Structurally, the magnetorheological damper is located on the outer layer of the system, while the eddy current damper is integrated into the inner layer. This parallel design aims to maximize the density and efficiency of energy dissipation within a limited space. The eddy current damper, based on the principle of electromagnetic induction, generates eddy currents through the movement of an internal conductor in a magnetic field, thus generating a damping force opposite to the direction of motion. The system innovatively adopts a double-layer eddy current conductor support structure, significantly improving the utilization rate of the magnetic field space and the area cut by magnetic field lines, thereby achieving a step-wise increase in energy dissipation efficiency. Its damping force's linear variation with motion speed allows for galloping responses across different frequency bands. The magnetorheological damper utilizes the rheological properties of magnetorheological fluid transitioning from a Newtonian fluid to a solid-like state under a magnetic field to generate damping force. By precisely controlling the excitation current, its damping force can be continuously and reversibly adjusted at the millisecond level. The system employs an electrically driven mode, altering the viscosity characteristics of the magnetorheological fluid through a magnetic field. Combined with a multi-layered damping piston design, this significantly increases the effective damping path within a limited volume, ensuring high damping force output and rapid response. The core advantage of this composite energy dissipation system lies in the synergistic operation of the two components. The eddy current damper provides stable, externally energy-free basic energy dissipation, while the magnetorheological damper endows the system with active and adjustable damping characteristics, significantly enhancing the entire anti-galloping system's ability to absorb impact energy and its durability.

[0029] Furthermore, the intelligent monitoring and control system 1 is used to acquire the galloping motion pattern of the transmission line in real time, and dynamically control the adaptive double pendulum system and intelligent pneumatic thrust system to achieve active anti-galloping; specifically, such as Figure 2 , Figure 3 As shown, it includes a sensor monitoring integration unit 5, an inductive energy harvesting CT 7, a supercapacitor bank and backup battery 6, an energy harvesting connector 17, a connecting clamp 8, and a connecting rod 9. The connecting clamp 8 is held on the power transmission line 10. A sensor monitoring integration 5 is installed on the connecting clamp 8. The sensor monitoring integration 5 is powered by a supercapacitor bank and a backup battery 6. The sensor monitoring integration 5 includes a triaxial accelerometer and a control module. The triaxial accelerometer and the control module are encapsulated in a metal shielded shell and potted with potting compound to achieve waterproof, moisture-proof and dustproof protection. The control module integrates a high-precision temperature sensor for real-time temperature compensation to eliminate the influence of temperature drift on measurement accuracy. The connecting clamp 8 is also connected to the inductive power CT 7 via the power harvesting connector 17; the inductive power CT 7 is installed on the outer ring of the power transmission conductor 10, and there are two inductive power CT 7 located on both sides of the connecting clamp 8; each inductive power CT 7 is connected to the connecting clamp 8 via the power harvesting connector 17. A connecting rod 9 is provided in the radial direction of the outer ring of the connecting clamp 8; one of the connecting rods 9 is connected to the intelligent pneumatic thrust system 3; the other connecting rod is connected to the pendulum shaft 11 of the adaptive double pendulum system 2.

[0030] When the transmission conductor 10 exhibits galloping under external environmental excitation, the sensor monitoring integration 5 located at the connecting clamp 8 immediately exits the energy-saving silent mode and starts operating. Its built-in high-performance triaxial accelerometer continuously collects multi-dimensional vibration signals from the conductor and uses an edge-end artificial intelligence kernel for real-time extraction and preliminary identification of motion characteristics. The processed sensor data is transmitted to the central control center, which constructs a precise kinematic model of the conductor's galloping based on this dynamic information. By analyzing the current galloping state and predicting future trends, the control module generates corresponding anti-galloping strategies and issues commands to the adaptive double pendulum system 2 and the intelligent aerodynamic thrust system 3, forming a complete closed-loop control system from state perception and intelligent decision-making to active intervention. In terms of hardware packaging, all accelerometer chips are placed in a metallized shielded shell and protected against water, moisture, and dust using potting compound; a high-precision temperature sensor is integrated internally to achieve real-time temperature compensation, effectively eliminating the impact of temperature drift on measurement accuracy.

[0031] The sensor monitoring integration system deeply integrates edge computing and advanced signal processing technologies. Through a MEMS-based triaxial accelerometer and a built-in AI kernel, the system can complete high-quality data acquisition and preliminary motion pattern recognition at the source of data generation. This not only reduces reliance on the central processing unit and data transmission latency but also lays the foundation for real-time control. The system implements two core control logics: First, by dynamically predicting the phase-to-phase distance, it can trigger the intelligent aerodynamic thrust system in advance before potential electrical safety risks (such as flashover) occur, transforming passive protection into active avoidance; second, it feeds back the real-time identified galloping frequency to the adaptive double-pendulum system, achieving online matching of the anti-galloping frequency. This integrated architecture of perception, decision-making, and pre-control enables the entire anti-galloping system to make accurate and rapid closed-loop responses to complex and ever-changing galloping conditions, fundamentally improving the reliability and timeliness of protection.

[0032] The system employs a highly efficient and reliable power supply design. The CT7 inductive energy harvester can efficiently harvest energy even under low current conditions, prioritizing power supply to system components. Excess energy is stored in the supercapacitor bank, ensuring energy accumulation during normal operation. In unexpected or extreme situations, the backup battery automatically activates, providing continuous power support and ensuring stable operation of the system under various working conditions.

[0033] Furthermore, the adaptive double pendulum system 2 in this embodiment is used to achieve dynamic and precise adjustment of the pendulum length parameter and to suppress the galloping of the transmission line by utilizing the resonance effect; specifically, it includes a pendulum shaft 11, a fixed connecting plate 12, a miniature winch 13, a sliding guide rail 14, a pendulum arm 15, and a pendulum 16. The middle part of the swing shaft 11 is fixedly connected to the connecting rod 9 of the intelligent monitoring and control system 1. Two fixed connecting plates 12 are respectively hinged to both ends of the swing shaft 11. The two fixed connecting plates 12 are assembled together to form a triangular structure. The top corner of the fixed connecting plate 12 is fixedly connected to the end of the swing shaft 11. The two bottom corners of the fixed connecting plate 12 are hinged to the sliding guide rail 14. A swing arm 15 is provided on the sliding guide rail 14, and a pendulum 16 is provided at the bottom of the swing arm 15. A miniature winch 13 is provided on the fixed connecting plate 12. The miniature winch 13 drives the swing arm 15 to make linear displacement along the sliding guide rail 14 through the traction cable to change the equivalent swing length of the system. The miniature winch receives the control signal from the intelligent monitoring and control system and adjusts the position by pulling the swing arm through the cable. Upon receiving the control command from the intelligent monitoring and control system 1, the adaptive double pendulum system 2 immediately activates its servo adjustment mechanism. The miniature winch 13, as the core drive unit, drives the pendulum arm 15 to linearly displace along the sliding guide rail 14 via a traction cable, thereby achieving dynamic adjustment of the system's effective pendulum length. This structural tuning directly alters the natural frequency of the double pendulum system, enabling it to actively track and match the dominant frequency of the transmission line galloping. When the two frequencies synchronize, the system precisely induces resonance. In this state, the mechanical energy of the conductor galloping is efficiently transferred and concentrated to the pendulum arm and pendulum assembly, effectively suppressing the amplitude of the conductor galloping and significantly improving the operational adaptability and control accuracy of the vibration suppression system.

[0034] Furthermore, the intelligent pneumatic thrust system 3 is used to actively intervene in and dynamically suppress the trajectory of the conductor by utilizing the power generated from regulating air pressure; specifically, it includes a miniature air compressor 18, a pneumatic piston 19, a pneumatic cavity 20, a pneumatic fixed support rod 21, a pneumatic push shaft 22, a pneumatic protective shell 23, and a pneumatic positioning disk 24; the pneumatic protective shell 23 is connected to the connecting rod 9; one end of the pneumatic protective shell 23 is connected to the pneumatic positioning disk 24 through several pneumatic fixed support rods 21, and the pneumatic protective shell 23 is connected to the miniature air compressor 18. An air compressor 18 forms an internal pneumatic cavity 20. A pneumatic piston 19 is installed inside a pneumatic protective housing 23. The pneumatic piston 19 is connected to a pneumatic push shaft 22. The other end of the pneumatic push shaft 22 passes through the end of the pneumatic protective housing 23 and a pneumatic positioning plate 24. The structure is positioned by a pneumatic fixing support rod to ensure sufficient mechanical strength when force is applied to the power transmission line and to prevent component damage. The miniature air compressor receives control signals from an intelligent monitoring and control system and controls the thrust by adjusting the air pressure inside the pneumatic cavity. Upon receiving control commands from the intelligent monitoring and control system 1, the intelligent pneumatic thrust system 3 uses a miniature air compressor 18 to charge and de-charge the pneumatic cavity 20. When the transmitted signal indicates a decrease in the phase spacing of the power transmission lines, requiring thrust, the miniature air compressor 18 charges the pneumatic cavity 20, increasing the pressure. This pressure is transmitted through the pneumatic piston 19, pushing the pneumatic push shaft 22, which in turn is transmitted to the power transmission lines 10, generating a pushing force to counteract the kinetic energy of the lines' swaying. Conversely, when the signal decreases, a pumping operation is performed, generating a pulling force.

[0035] Furthermore, in Figure 1 In the middle, the pneumatic thrust shaft 22 of the intelligent pneumatic thrust system 3 located below is connected to the damping thrust shaft 29 of the energy dissipation system 4, and the pneumatic thrust shaft 22 of the intelligent pneumatic thrust system 3 located below is connected to the outer shell of the magnetorheological sealing shell 31 of the energy dissipation system 4.

[0036] Upon receiving the control command from the intelligent monitoring and control system 1, the intelligent pneumatic thrust system 3 immediately activates its pneumatic servo control mechanism. The core drive unit, the micro air compressor 18, performs precise inflation or deflation operations on the sealed pneumatic cavity 20 according to the command requirements. When the system determines that the distance between the phases of the transmission lines is decreasing and thrust intervention is required, the compressor inflates the pneumatic cavity 20, causing the internal pressure to rise rapidly. The increased air pressure acts on the pneumatic piston 19, which in turn drives the pneumatic push shaft 22 to move outward, ultimately transmitting the thrust to the transmission lines. This thrust direction is opposite to the conductor galloping trend, effectively counteracting the conductor's kinetic energy. Conversely, when the system needs to apply tension, it reduces the internal air pressure through deflation, causing the pneumatic push shaft to retract and generate a corresponding traction effect. Through this bidirectional actuation mechanism, the system achieves dynamic suppression and attitude adjustment of conductor galloping.

[0037] Furthermore, the energy dissipation system 4 consists of a magnetorheological damper and an eddy current damper to achieve spatial coordination and complementary efficiency. The two are physically isolated and functionally integrated in space through an eddy current permanent magnet shell. The magnetorheological damping unit includes multiple sets of damping pistons connected in series by connecting rods, which are driven by a damping push shaft to move in the magnetorheological fluid. An exciter is installed inside the magnetorheological sealed shell, and the strength of the generated magnetic field is changed by adjusting the current, thereby regulating the viscosity characteristics of the magnetorheological fluid. The magnetorheological fluid fills a sealed cavity formed by the magnetorheological sealed shell and the eddy current permanent magnet shell. The eddy current damping unit includes an eddy current permanent magnet shell, in which a directional magnetic field is constructed within its internal cavity. The eddy current conductor legs are configured with two discontinuous layers, enabling them to cut magnetic field lines in the magnetic field, thereby improving the energy dissipation efficiency per unit space.

[0038] Specifically, the energy-consuming system 4 includes a damping piston 25, an eddy current conductor support 26, an eddy current magnetic cavity 27, a magnetorheological cavity 28, a damping push shaft 29, an eddy current permanent magnet shell 30, a magnetorheological sealing shell 31, a magnetorheological push rod 32, a damping piston connecting rod 33, and a push plate 34. An eddy current permanent magnet shell 30 is fixed inside the magnetorheological sealing shell 31 and is coaxially arranged with it. The two are coaxially fitted together, with the magnetorheological sealing shell 31 located on the outside and the eddy current permanent magnet shell 30 located on the inside. The annular gap formed by the eddy current permanent magnet shell 30 and the magnetorheological sealing shell 31 is a magnetorheological cavity 28. A damping piston 25 and a magnetorheological fluid are arranged in the magnetorheological cavity 28. The damping piston 25 is connected to a push plate 34 through a magnetorheological push rod 32 extending to the outside of the magnetorheological sealing shell 31. When the push plate is subjected to external force, the damping piston 25 is pushed by the magnetorheological push rod 32 to run in the magnetorheological fluid to dissipate energy. Inside the eddy current permanent magnet housing 30 is an eddy current magnetic cavity 27. The eddy current conductor support 26 is located inside the eddy current magnetic cavity 27. The eddy current conductor support 26 is connected to the damping push shaft 29. The damping push shaft 29 passes through the center of the magnetorheological sealing housing 31 and is connected to the push plate 34. The damping push shaft 29 is used to connect the above-mentioned intelligent pneumatic thrust system 3. The multiple damping pistons 25 are connected in series via the damping piston connecting rod 3. A magnetorheological push rod 32 is provided on the outer ring of one of the damping pistons 25. The multiple magnetorheological push rods 32 are connected to the push plate 34 through the magnetorheological sealing shell 31. Eddy current conductor support 26 is connected to damping push shaft 29, which passes through damping piston 25 and magnetorheological push rod support plate, and is connected to push plate. When the energy from the dancing motion is transferred to the energy dissipation system 4, the damping push shaft 29 pushes the magnetorheological push rod 32 through the push plate 34, which in turn pushes the damping piston 25 to move in the magnetorheological fluid. At this time, under the control of the external magnetic field, the magnetorheological fluid changes its viscosity characteristics to adapt to the required damping conditions. Multiple sets of damping pistons 25 are connected by the damping piston connecting rod 33, and their movement in the damping fluid increases the energy dissipation efficiency. In addition, the damping push shaft 29 pushes the eddy current conductor support leg 26 to shuttle in the magnetic field formed by the eddy current permanent magnet shell 30, cutting the magnetic field lines to generate eddy currents and dissipate energy. The double-layer structure design increases the efficiency of cutting the magnetic field lines.

[0039] When the energy from the dancing motion is transferred to the energy dissipation system 3, the internal dual energy dissipation mechanism works in tandem through the damping push shaft 29. On one hand, the damping push shaft 29 pushes the magnetorheological push rod 32, which in turn drives multiple sets of damping pistons 25 connected in series by the damping piston connecting rod 33 to reciprocate in the magnetorheological fluid. At this time, the magnetorheological fluid undergoes field-induced rheological effects under the action of the external magnetic field generated by the excitation coil. Its apparent viscosity and yield stress are adjustable in real time with the magnetic field strength, thereby achieving precise control of the damping force. On the other hand, the eddy current conductor legs 26, which move synchronously with the damping push shaft 29, cut magnetic field lines in the magnetic field formed by the eddy current permanent magnet shell 30. Eddy currents are generated inside the conductor, which in turn generate a damping force opposite to the direction of motion, converting mechanical energy into Joule heat dissipation. The adopted double-layer layout structure doubles the rate of change of magnetic flux per unit stroke, thereby significantly improving the energy conversion efficiency.

Claims

1. A phase-dissipation anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust, characterized in that, This includes an intelligent monitoring and control system, an adaptive double pendulum system, an intelligent aerodynamic thrust system, and an energy consumption system; The energy-consuming system is connected to an intelligent monitoring and control system at both ends via an intelligent pneumatic thrust system. The intelligent monitoring and control system is installed on the power transmission line to acquire the galloping motion pattern of the power transmission line in real time. An adaptive double-pendulum system is connected to the intelligent monitoring and control system. The adaptive double-pendulum system includes a pendulum shaft, a fixed connecting plate, a miniature winch, a sliding guide rail, a pendulum arm, and a pendulum. The middle of the pendulum shaft is fixedly connected to the intelligent monitoring and control system. Fixed connecting plates are hinged to both ends of the pendulum shaft. The fixed connecting plates are similar to a triangular structure, with the apex of the fixed connecting plate connected to the end of the pendulum shaft. Sliding guide rails are hinged to the two base corners of the fixed connecting plate. A pendulum arm is mounted on the sliding guide rail, and a pendulum is mounted at the bottom of the pendulum arm. A miniature winch is mounted on the fixed connecting plate, and the miniature winch drives the pendulum arm to linearly displace along the sliding guide rail via a traction cable. The intelligent monitoring and control system includes a sensor monitoring integration unit, a connecting clamp, and a connecting rod; the connecting clamp is held on the power transmission line, and a sensor monitoring integration unit is set on the connecting clamp; a connecting rod is arranged radially on the outer ring of the connecting clamp; one connecting rod is connected to the intelligent pneumatic thrust system; the other connecting rod is connected to the pendulum shaft of the adaptive double pendulum system. The intelligent monitoring and control system converts the signal to the frequency domain through fast Fourier transform, and then reconstructs it into a displacement time history curve in the time domain through inverse transform. Based on the reconstructed galloping trajectory and the rate of change of phase distance, the system can predict the phase distance and activate the intelligent aerodynamic thrust system when the predicted value is lower than the safety threshold to achieve active protection. At the same time, the system feeds back the galloping frequency identified in real time to the control algorithm to dynamically adjust the pendulum length of the double pendulum in order to achieve the purpose of resonance-based galloping suppression. The intelligent pneumatic thrust system includes a miniature air compressor, a pneumatic piston, a pneumatic cavity, a pneumatic fixed support rod, a pneumatic push shaft, a pneumatic protective shell, and a pneumatic positioning plate; One end of the pneumatic protective housing is connected to the pneumatic positioning plate via several pneumatic fixed support rods. The pneumatic protective housing is connected to a miniature air compressor, forming a pneumatic cavity inside. A pneumatic piston is installed inside the pneumatic protective housing, and the pneumatic piston is connected to a pneumatic push shaft. The other end of the pneumatic push shaft passes through the end of the pneumatic protective housing and the pneumatic positioning plate. The energy-consuming system consists of a magnetorheological damper and an eddy current damper to achieve spatial coordination and complementary efficiency.

2. The phase-dissipation anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust as described in claim 1, characterized in that, The connecting clamp is also connected to the inductive power CT via a power harvesting connector; the inductive power CT is installed on the outer ring of the power transmission line.

3. The phase-dissipation anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust as described in claim 2, characterized in that, The inductive power harvesting CT includes two units, located on both sides of the connecting clamp; each inductive power harvesting CT is connected to the connecting clamp via a power harvesting connector.

4. The phase-dissipation anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust as described in claim 1, characterized in that, The pneumatic push shaft is connected to the energy-consuming system.

5. The phase-dissipation anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust as described in claim 1, characterized in that, The energy-consuming system includes a damping piston, an eddy current conductor support, an eddy current magnetic cavity, a magnetorheological cavity, a damping push shaft, an eddy current permanent magnet shell, a magnetorheological sealing shell, a magnetorheological push rod, a damping piston connecting rod, and a push plate. The magnetorheological sealing shell contains a coaxially arranged eddy current permanent magnet shell. The annular gap formed between the eddy current permanent magnet shell and the magnetorheological sealing shell constitutes the magnetorheological cavity. A damping piston and magnetorheological fluid are disposed within the magnetorheological cavity. The damping piston is connected to the push plate via a magnetorheological push rod extending to the outside of the magnetorheological sealing shell. The eddy current permanent magnet shell contains an eddy current magnetic cavity. The eddy current conductor support is located within the eddy current magnetic cavity and is connected to the damping push shaft. The damping push shaft passes through the center of the magnetorheological sealing shell and is connected to the push plate.

6. The phase-dissipation anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust as described in claim 5, characterized in that, The multiple damping pistons are connected in series via a damping piston connecting rod. A magnetorheological push rod is provided on the outer ring of one of the damping pistons. The multiple magnetorheological push rods pass through the magnetorheological sealing shell and are connected to the push plate.

7. The phase-dissipation anti-galloping system based on adaptive double pendulum and intelligent aerodynamic thrust as described in claim 5, characterized in that, The eddy current permanent magnet housing is located on the center line of the magnetorheological sealing housing.

Images