Device and method for actively suppressing low-frequency vibration of split conductor

Abstract

The invention provides an active suppression device and method for low-frequency vibration of a split conductor. The active suppression device comprises a monitoring unit and a spring oscillator structure which are arranged on a spacer frame body, a rotating joint is arranged on the spring vibrator structure; the monitoring unit is connected with the spring oscillator structure, and the monitoring unit is used for sensing the movement frequency of the split conductor and controlling the spring oscillator structure and the rotating joint to perform swing, vertical and / or torsional multidirectional resonance aiming at movement in different directions according to the movement frequency of the split conductor; the rotating joint is arranged on the spring oscillator structure, when a split conductor moves, the rotating joint cooperates with the spring oscillator structure to carry out multi-directional resonance of swinging, vertical and twisting, and by optimizing an active action structure, the adaptability of common suppression is improved, and active prevention and treatment of low-frequency vibration such as waving and ice-shedding jumping are achieved.

Description

Technical Field

[0001] The present invention relates to the field of active prevention and control of low-frequency vibrations in the operation and maintenance stage of a power transmission line, and in particular to a device and method for active suppression of low-frequency vibrations of a split conductor. Background Art

[0002] Since the split conductors are affected by strong winds and icing, they are prone to long-term, low-frequency dancing (stable and continuous up and down vibration + rotation + swinging) and de-icing jumping (transient up and down vibration of about 10s). The present invention is mainly used to reduce the amplitude of the all-directional vibrations of dancing and de-icing jumping.

[0003] Disadvantages of existing devices:

[0004] (1) It is only applicable to dancing or ice jumping, and does not design and optimize the common low-frequency characteristics of the two.

[0005] (2) The energy consumption of the action unit has not been fully considered. Whether it is gears or hydraulics + springs, if a large mass body is moved, the action unit requires a lot of energy and cannot meet the long-term continuous suppression effect. Summary of the invention

[0006] In order to solve at least one of the above technical problems, the present invention proposes a split conductor low-frequency vibration active suppression device, comprising: a monitoring unit and a spring oscillator structure installed on a spacer rod frame;

[0007] The spring oscillator structure is provided with a rotation joint;

[0008] The monitoring unit is connected to the spring oscillator structure, and is used to sense the frequency of movement of the split conductor, and control the spring oscillator structure and the rotating joint to perform swinging, vertical and / or torsional multi-directional resonance for movement in different directions according to the movement frequency of the split conductor.

[0009] Preferably, the spring oscillator structure comprises: a guide rail assembly, a spring and an adjustable counterweight unit;

[0010] The rotating joint is arranged in the middle section of the guide rail assembly, the guide rail assembly on one side of the rotating joint is connected to the spacer rod frame, and the adjustable counterweight unit is slidably sleeved on the guide rail assembly on the other side of the rotating joint;

[0011] The spring is sleeved on the guide rail assembly, and one end of the spring is connected to the spacer rod frame and the other end is connected to the adjustable counterweight unit.

[0012] Preferably, the guide rail assembly comprises: a spring guide rail and a ball slide rail respectively connected to both sides of the rotation joint;

[0013] One end of the spring guide rail away from the rotating joint passes through the frame body on one side of the spacer bar frame body and is connected to the inner wall of the frame body on the other side opposite thereto, and the spring is sleeved on the outside of the spring guide rail;

[0014] The ball slide rail is located outside the spacer rod frame, and the adjustable counterweight unit is slidably sleeved on the ball slide rail.

[0015] Preferably, a protective sleeve is provided on the outer side of the spring, and one end of the protective sleeve is connected to the spacer rod frame.

[0016] Preferably, the adjustable counterweight unit comprises: a spherical liquid storage control component and an electric control component;

[0017] The ball is slidably arranged on the ball slide rail, and the liquid storage control component and the electric control component are both arranged in the ball;

[0018] The liquid storage control component and the electric control component are electrically connected to the monitoring unit respectively.

[0019] Preferably, the electric control component comprises: a battery and a signal harness, and the battery is electrically connected to the monitoring unit via the signal harness.

[0020] Preferably, the liquid storage control component comprises: a liquid storage chamber and a liquid guide tube, and the liquid storage control component is connected to the monitoring unit via the liquid guide tube.

[0021] Preferably, the monitoring unit comprises: a sensing control module and a liquid storage box pump control module;

[0022] The sensing control module and the liquid storage box pump control module are both fixedly connected to the spacer rod frame, and the sensing control module and the liquid storage box pump control module are respectively located on both sides of the guide rail assembly.

[0023] Preferably, the perception control module is connected to the electronic control component.

[0024] Preferably, the liquid storage box pump control module is connected to the liquid storage control assembly. Preferably, a protective shell is provided outside the monitoring unit and the spring oscillator structure, and the protective shell is fixedly connected to the protective sleeve and the spacer rod frame respectively.

[0025] On the other hand, the present application also provides a method for actively suppressing low-frequency vibration of a split conductor, which is implemented by using any of the above-mentioned devices for actively suppressing low-frequency vibration of a split conductor, and the method includes:

[0026] Sensing and obtaining the frequency of the movement of the split conductor;

[0027] The spring oscillator structure and the rotating joint are controlled according to the movement frequency of the split conductor, so that the two cooperate with each other to perform swing, vertical and / or torsional multi-directional resonance for movements in different directions, thereby realizing active suppression of low-frequency vibration.

[0028] Preferably, the spring oscillator structure and the rotating joint are controlled according to the movement frequency of the split conductor so that the two cooperate to perform swing, vertical and / or torsional multi-directional resonance for movements in different directions, including:

[0029] The monitoring unit sends instructions to the adjustable counterweight unit in the spring oscillator structure according to the frequency of the movement of the split conductor and the directions of different movements. The liquid storage box pump control module of the monitoring unit controls the liquid content in the liquid storage chamber of the adjustable counterweight unit to adjust the height of the ball in the adjustable counterweight unit on the guide rail assembly in the spring oscillator structure to obtain different moments of inertia. The ball and the rotating joint cooperate to perform multi-directional resonance such as swinging, vertical or torsional resonance according to movements in different directions, thereby controlling the resonant frequency of the spring oscillator structure to achieve active suppression of low-frequency vibrations.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention provides a split conductor low-frequency vibration active suppression device and method, comprising: a monitoring unit and a spring vibrator structure installed on a spacer rod frame; a rotating joint is provided on the spring vibrator structure; the monitoring unit is connected to the spring vibrator structure, and the monitoring unit is used to sense the frequency of the split conductor movement, and control the spring vibrator structure and the rotating joint to swing, vertically, and torsion multi-directional resonance for movements in different directions according to the movement frequency of the split conductor. The spring vibrator structure is provided with a rotating joint, so that the spring vibrator structure can swing or torsion in different directions under the cooperation of the rotating joint to achieve resonance in different directions, and is suitable for dancing or ice-breaking jumping. At the same time, the use of the rotating joint for directional assistance reduces the mass of the device, reduces the energy consumption of the action unit, and does not require a large amount of energy to extend the low-frequency suppression time. The monitoring unit is used to monitor the frequency of the movement of the split conductor, and the spring vibrator structure is controlled to swing, vertically and torsion multi-directional resonance for movements in different directions according to the frequency of the movement of the split conductor, optimize the active action structure, thereby improving the adaptability of joint suppression to achieve active prevention and control of low-frequency vibrations such as dancing, ice-breaking jumping, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the device for actively suppressing low-frequency vibration of split conductors of the present invention;

[0033] Figure 2This is a schematic diagram of the spring of the split conductor low-frequency vibration active suppression device of the present invention driving the ball to move up and down;

[0034] Figure 3 It is a schematic diagram of the swing / twist of the sphere driven by the rotating joint of the split conductor low-frequency vibration active suppression device of the present invention;

[0035] Figure 4 The present invention provides a method for actively suppressing low-frequency vibration of a split conductor;

[0036] Among them, 1-spacer rod frame, 2.1-spring, 2.1.1-protective sleeve, 2.1.2-spring guide rail, 2.2-ball, 2.2.1-ball slide rail, 2.3-rotation joint, 3.1-sensing control module, 3.1.1-signal harness. 3.2-liquid storage box pump control module, 3.2.1-liquid guide tube, 3.3-installation hole. DETAILED DESCRIPTION

[0037] Embodiment 1:

[0038] A split conductor low-frequency vibration active suppression device, such as Figure 1 The structure shown includes: a monitoring unit and a spring oscillator structure installed on a spacer rod frame 1;

[0039] The spring oscillator structure is provided with a rotation joint 2.3;

[0040] The monitoring unit is connected to the spring oscillator structure, and is used to sense the frequency of the movement of the split conductor, and control the spring oscillator structure and the rotating joint 2.3 to perform swinging, vertical and / or torsional multi-directional resonance for movements in different directions according to the movement frequency of the split conductor.

[0041] The monitoring unit is used to monitor the amplitude of various vibrations of the transmission line when it dances or jumps due to ice shedding, and adjust the weight of the adjustable counterweight unit according to the amplitude, so as to control the spring oscillator structure to suppress different vibrations.

[0042] The spring vibrator structure is connected to the spacer rod frame 1, and corresponding vibration suppression is performed according to the vibration transmitted from the spacer rod frame 1. The rotating joint 2.3 is arranged on the spring vibrator structure, and the rotating joint 2.3 can rotate in a swinging or torsional direction. The rotation in multiple directions can cooperate with the vibrator on the spring vibrator structure. When the split conductor moves in different directions such as dancing or jumping off the ice, the rotating joint 2.3 cooperates with the structure of the adjustable counterweight unit to perform swinging, vertical and / or torsional multi-directional resonance according to the movement of the split conductor in different directions.

[0043] The monitoring unit, the spring oscillator structure and the rotating joint 2.3 form a split conductor suppression device that can adaptively adjust and control the vibration of the split conductor, thereby performing corresponding resonance, thereby suppressing the dancing, ice-breaking and jumping movements of the split conductor, and improving the adaptability of joint suppression while optimizing the active action structure, ensuring functionality, reliability and economy while reducing the power consumption of the action unit.

[0044] Preferably, the spring oscillator structure comprises: a guide rail assembly, a spring 2.1 and an adjustable counterweight unit;

[0045] The rotating joint 2.3 is arranged in the middle section of the guide rail assembly, the guide rail assembly on one side of the rotating joint 2.3 is connected to the spacer bar frame 1, and the adjustable counterweight unit is slidably mounted on the guide rail assembly on the other side of the rotating joint 2.3;

[0046] The spring 2.1 is sleeved on the guide rail assembly, and one end of the spring 2.1 is connected to the spacer bar frame 1 and the other end is connected to the adjustable counterweight unit.

[0047] The guide rail assembly is divided into two parts by the rotating joint 2.3, one part of the guide rail assembly is fixedly connected to the spacer rod frame 1, and the other part of the guide rail assembly is slidably connected to the adjustable counterweight unit, and the adjustable counterweight unit is the oscillator of the spring oscillator structure that plays a resonant role.

[0048] When the guide rail assembly is not working, it is perpendicular to the ground under the action of gravity, and the adjustable counterweight unit can slide vertically on the guide rail assembly. Because the height of the adjustable counterweight unit on the guide rail assembly is different, the rotational inertia generated during movement is also different, and resonance is achieved by adjusting the rotational inertia.

[0049] The adjustable counterweight unit is controlled by the monitoring unit. The monitoring unit controls the height of the adjustable counterweight unit on the guide rail assembly by controlling the weight of the adjustable counterweight unit. The rotational inertia of the spring oscillator structure is controlled by controlling the height of the adjustable counterweight unit to achieve the purpose of anti-dance.

[0050] The two ends of the spring 2.1 are respectively connected to the adjustable counterweight unit and the spacer rod frame 1, so that the height of the adjustable counterweight unit on the guide rail assembly can be maintained. The natural length and stiffness of the spring 2.1 are fully optimized so that the adjustable counterweight unit is in the middle position of the slide rail assembly when it is stationary; and when the adjustable counterweight unit moves to the highest or lowest position, the tension change of the spring 2.1 is small, thereby reducing the energy consumption of the pump control unit within a single control cycle.

[0051] Preferably, the guide rail assembly comprises: a spring guide rail 2.1.2 and a ball slide rail 2.2.1 respectively connected to both sides of the rotary joint 2.3;

[0052] One end of the spring guide rail 2.1.2 away from the rotating joint 2.3 passes through the frame on one side of the spacer frame 1 and is connected to the inner wall of the frame on the other side opposite thereto, and the spring 2.1 is sleeved on the outside of the spring guide rail 2.1.2;

[0053] The ball slide rail 2.2.1 is located outside the spacer frame 1, and the adjustable control unit is slidably sleeved on the ball slide rail 2.2.1.

[0054] The spring guide rail 2.1.2 is connected to the spacer bar frame 1, and the spacer bar frame 1 is penetrated by the spring guide rail 2.1.2 on one side of the frame and connected to the inner wall of the frame on the other side. The spring 2.1 is sleeved on the outside of the spring guide rail 2.1.2. The spring guide rail 2.1.2 has the ability to limit and guide the spring 2.1, so that the spring 2.1 cooperates with the movement and height adjustment of the adjustable counterweight unit in the vertical direction.

[0055] Preferably, a protective sleeve 2.1.1 is sleeved on the outer side of the spring 2.1, and one end of the protective sleeve 2.1.1 is connected to the spacer rod frame 1.

[0056] The protective sleeve 2.1.1 is sleeved on the outside of the spring 2.1 to protect the spring 2.1 from being affected by the external environment during high-altitude operations, maintain its natural length and stiffness, so that the tension of the spring 2.1 will not change, thereby ensuring the resonance and anti-dance accuracy of the adjustable counterweight unit controlled by the monitoring unit for the vibration of the split conductor.

[0057] Preferably, the adjustable counterweight unit comprises: a sphere 2.2, a liquid storage control component and an electric control component;

[0058] The ball 2.2 is slidably arranged on the ball slide rail 2.2.1, and the liquid storage control component and the electric control component are both arranged in the ball 2.2;

[0059] The liquid storage control component and the electric control component are electrically connected to the monitoring unit respectively.

[0060] like Figure 2 As shown, the ball 2.2 is slidably arranged on the ball slide rail 2.2.1, and different moments of inertia are obtained by controlling the height of the ball 2.2 on the ball slide rail 2.2.1, thereby achieving the purpose of anti-dance.

[0061] The monitoring unit controls the height of the sphere 2.2 by controlling the liquid storage control assembly. The liquid content in the liquid storage control assembly can be controlled. When the liquid content in the liquid storage control assembly is low, the weight of the sphere 2.2 is small, and the sphere 2.2 can slide upward on the sphere slide rail 2.2.1 under the resetting force of the spring 2.1. When the liquid content in the liquid storage control assembly is high, the weight of the sphere 2.2 is large, and the sphere 2.2 will slide downward on the sphere slide rail 2.2.1 under the force of gravity. By changing the height of the sphere 2.2 on the sphere slide rail 2.2.1, the moment of inertia is changed.

[0062] like Figure 3 As shown, one end of the spherical slide rail 2.2.1 is connected to the rotating joint 2.3 and the other end is suspended. The spherical slide rail 2.2.1 cooperates with the rotating joint 2.3 to produce left and right swinging or rotational movement. When dancing or jumping off the ice occurs, for movements in different directions, the adjustable counterweight unit can swing up and down, left and right or rotate along the spherical slide rail 2.2.1. At the same time, the monitoring unit will control the adjustable counterweight unit according to the frequency of the split wire movement, thereby controlling the resonant frequency and phase of the spring oscillator structure to achieve the optimal vibration isolation state.

[0063] Preferably, the electric control assembly comprises: a battery and a signal harness 3.1.1, and the battery is electrically connected to the monitoring unit via the signal harness 3.1.1.

[0064] The battery is used to power the monitoring unit, and the signal harness 3.1.1 is used to transmit power.

[0065] Preferably, the liquid storage control component comprises: a liquid storage chamber and a liquid guide tube 3.2.1, and the liquid storage control component is connected to the monitoring unit via the liquid guide tube 3.2.1.

[0066] The monitoring unit controls the liquid content in the liquid storage chamber through the liquid conduit 3.2.1, and controls the weight of the adjustable counterweight unit by controlling the liquid content in the liquid storage chamber, thereby controlling the position of the adjustable counterweight unit on the ball slide rail 2.2.1 and changing the moment of inertia.

[0067] The battery unit and the liquid storage chamber are arranged in the sphere 2.2, and the sphere 2.2 is wrapped on the sphere slide rail 2.2.1 to slide up and down. The battery is used to provide power to the monitoring unit. The monitoring unit injects liquid into the liquid storage chamber through the liquid catheter 3.2.1, thereby increasing the mass of the sphere 2.2, or the liquid in the liquid storage chamber is extracted back into the monitoring unit through the liquid catheter 3.2.1, thereby reducing the mass of the sphere. The weight of the sphere 2.2 is changed by changing the amount of liquid in the liquid storage chamber, thereby changing the height of the sphere 2.2 on the sphere slide rail 2.2.1.

[0068] Preferably, the monitoring unit comprises: a sensing control module 3.1 and a liquid storage box pump control module 3.2;

[0069] The sensing control module 3.1 and the liquid storage box pump control module 3.2 are both fixedly connected to the spacer bar frame 1, and the sensing control module 3.1 and the liquid storage box pump control module 3.2 are respectively located on both sides of the guide rail assembly.

[0070] The sensing control module 3.1 is used to monitor the vibration of the split conductor and control the liquid storage box pump control module 3.2. The sensing control module 3.1 and the liquid storage box pump control module 3.2 are respectively connected to the spacer rod frame 1, and the monitoring data is obtained through the vibration frequency of the split conductor transmitted from the spacer rod frame 1.

[0071] Preferably, the perception control module 3.1 is connected to the electronic control component.

[0072] The sensing control module 3.1 is powered by the electronic control assembly and transmits control signals via the signal harness 3.1.1.

[0073] Preferably, the liquid storage box pump control module 3.2 is connected to the liquid storage control component.

[0074] The liquid storage box pump control module 3.2 changes the weight of the ball 2.2 by controlling the liquid content in the liquid storage chamber, thereby changing the height of the ball 2.2 on the ball slide rail 2.2.1, thereby controlling the resonant frequency of the spring oscillator structure.

[0075] The sensing control module 3.1 controls the liquid storage box pump control module 3.2 to transport or extract liquid to the liquid storage chamber through the vibration of the split conductor, thereby changing the weight of the sphere 2.2. By changing the weight of the sphere 2.2, the height of the sphere 2.2 on the sphere guide rail 2.2.1 is changed, thereby obtaining different moments of inertia to achieve the purpose of anti-dance.

[0076] Preferably, a protective shell is provided outside the monitoring unit and the spring oscillator structure, and the protective shell is fixedly connected to the protective sleeve 2.1.1 and the spacer rod frame 1 respectively.

[0077] The protective shell is used to protect the part of the spring oscillator structure that is not protected by the protective sleeve 2.1.1 and the monitoring unit. The spacer rod frame 1 is provided with a mounting hole 3.3. The protective shell is fixedly installed on the spacer rod frame 1 through the mounting hole 3.3 and the fixing bolts. The protective shell is used to isolate the monitoring unit and the spring oscillator structure from the external environment, so as to suppress the low-frequency vibration of the split conductor without being affected by the external environment.

[0078] Embodiment 2:

[0079] The present invention based on the same inventive concept also provides a method for actively suppressing low-frequency vibration of a split conductor, which is implemented by using any of the above-mentioned devices for actively suppressing low-frequency vibration of a split conductor. Figure 4 As shown, the method includes:

[0080] Sensing and obtaining the frequency of the movement of the split conductor;

[0081] The spring oscillator structure and the rotating joint are controlled according to the movement frequency of the split conductor so that the two cooperate to perform swinging, vertical and / or torsional multi-directional resonance for movements in different directions, thereby realizing active suppression of low-frequency vibration.

[0082] When low-frequency vibration occurs in the split conductor, the monitoring unit senses it and issues instructions to the spring oscillator structure, adjusts the height of the adjustable counterweight unit on the guide rail assembly by controlling the weight of the adjustable counterweight unit, thereby changing the resonant frequency of the spring oscillator structure, and / or controls the multi-directional resonance of the spring oscillator structure by cooperating with the movement mode of the adjustable counterweight unit through the rotating joint 2.3, thereby achieving active suppression of low-frequency vibration.

[0083] Preferably, the spring oscillator structure and the rotating joint are controlled according to the movement frequency of the split conductor so that the two cooperate to perform swing, vertical and / or torsional multi-directional resonance for movements in different directions, including:

[0084] The monitoring unit sends instructions to the adjustable counterweight unit in the spring oscillator structure according to the frequency of the movement of the split conductor and the directions of different movements. The liquid storage box pump control module 3.2 of the monitoring unit adjusts the height of the sphere 2.2 on the guide rail assembly by controlling the liquid content in the liquid storage chamber of the adjustable counterweight unit to obtain different moments of inertia. The sphere 2.2 and the rotating joint 2.3 cooperate to perform multi-directional resonance such as swinging, vertical or torsional resonance according to movements in different directions, thereby controlling the resonant frequency of the spring oscillator structure to achieve active suppression of low-frequency vibrations.

[0085] Before dancing occurs, the height of the ball 2.2 on the ball slide rail 2.2.1 can be controlled by controlling the liquid content in the ball 2.2, thereby obtaining different moments of inertia to achieve the purpose of preventing dancing.

[0086] When dancing or jumping off the ice occurs, the ball 2.2 cooperates with the rotating joint 2.3 to swing up and down, left and right or rotate along the ball slide rail for movements in different directions. The monitoring unit adjusts the liquid storage volume in the ball 2.2 according to the frequency of the movement, thereby controlling the resonant frequency and phase of the oscillator structure composed of the ball 2.2 and the spring 2.1 to achieve the optimal vibration isolation state.

[0087] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0088] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0089] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0090] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0091] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A split conductor low-frequency vibration active suppression device, characterized in that: include: A monitoring unit and a spring oscillator structure mounted on a spacer rod frame (1); The spring oscillator structure is provided with a rotation joint (2.3); The monitoring unit is connected to the spring oscillator structure, and is used to sense the frequency of the movement of the split conductor, and control the spring oscillator structure and the rotating joint (2.3) to perform swing, vertical and / or torsional multi-directional resonance according to the movement frequency of the split conductor for movement in different directions.

2. The split conductor low-frequency vibration active suppression device according to claim 1, characterized in that: The spring oscillator structure comprises: a guide rail assembly, a spring (2.1) and an adjustable counterweight unit; The rotating joint (2.3) is arranged in the middle section of the guide rail assembly, the guide rail assembly on one side of the rotating joint (2.3) is connected to the spacer rod frame (1), and the adjustable counterweight unit is slidably mounted on the guide rail assembly on the other side of the rotating joint (2.3); The spring (2.1) is sleeved on the guide rail assembly, and one end of the spring (2.1) is connected to the spacer rod frame (1), and the other end is connected to the adjustable counterweight unit.

3. The split conductor low-frequency vibration active suppression device according to claim 2, characterized in that: The guide rail assembly comprises: a spring guide rail (2.1.2) and a ball slide rail (2.2.1) respectively connected to both sides of the rotating joint (2.3); One end of the spring guide rail (2.1.2) away from the rotating joint (2.3) passes through the frame on one side of the spacer bar frame (1) and is connected to the inner wall of the frame on the other side opposite thereto, and the spring (2.1) is sleeved on the outside of the spring guide rail (2.1.2); The ball slide rail (2.2.1) is located outside the spacer rod frame (1), and the adjustable counterweight unit is slidably sleeved on the ball slide rail (2.2.1).

4. The split conductor low-frequency vibration active suppression device according to claim 2, characterized in that: The outer side of the spring (2.1) is provided with a protective sleeve (2.1.1), and one end of the protective sleeve (2.1.1) is connected to the spacer rod frame (1).

5. The split conductor low-frequency vibration active suppression device according to claim 2, characterized in that: The adjustable counterweight unit comprises: a sphere (2.2), a liquid storage control component and an electric control component; The sphere (2.2) is slidably arranged on the sphere slide rail (2.2.1), and the liquid storage control component and the electric control component are both arranged inside the sphere (2.2); The liquid storage control component and the electric control component are electrically connected to the monitoring unit respectively.

6. The split conductor low-frequency vibration active suppression device according to claim 5, characterized in that: The electric control component comprises: a battery and a signal wiring harness (3.1.1), and the battery is electrically connected to the monitoring unit via the signal wiring harness (3.1.1).

7. The split conductor low-frequency vibration active suppression device according to claim 5, characterized in that: The liquid storage control component comprises: a liquid storage cavity and a liquid guide tube (3.2.1), and the liquid storage control component is connected to the monitoring unit via the liquid guide tube (3.2.1).

8. The split conductor low-frequency vibration active suppression device according to claim 5, characterized in that: The monitoring unit comprises: a sensing control module (3.1) and a liquid storage box pump control module (3.2); The sensing control module (3.1) and the liquid storage box pump control module (3.2) are both fixedly connected to the spacer bar frame (1), and the sensing control module (3.1) and the liquid storage box pump control module (3.2) are respectively located on both sides of the guide rail assembly.

9. The split conductor low-frequency vibration active suppression device according to claim 8, characterized in that: The perception control module (3.1) is connected to the electronic control component.

10. The split conductor low-frequency vibration active suppression device according to claim 8, characterized in that: The liquid storage box pump control module (3.2) is connected to the liquid storage control component.

11. The split conductor low-frequency vibration active suppression device according to claim 1, characterized in that: A protective shell is provided outside the monitoring unit and the spring oscillator structure, and the protective shell is fixedly connected to the protective sleeve (2.1.1) and the spacer rod frame (1) respectively.

12. A method for actively suppressing low-frequency vibration of a split conductor, characterized in that: The method is implemented by using the split conductor low-frequency vibration active suppression device as claimed in any one of claims 1 to 11, and the method comprises: Sensing and acquiring the frequency of movement of the split conductor; The spring oscillator structure and the rotating joint are controlled according to the movement frequency of the split conductor so that the two cooperate to perform swinging, vertical and / or torsional multi-directional resonance for movements in different directions, thereby realizing active suppression of low-frequency vibration.

13. The method for actively suppressing low-frequency vibration of split conductors according to claim 12, characterized in that: The method of controlling the spring oscillator structure and the rotating joint according to the movement frequency of the split conductor so that the two cooperate with each other to perform swing, vertical and / or torsional multi-directional resonance for movements in different directions includes: The monitoring unit sends instructions to the adjustable counterweight unit in the spring oscillator structure according to the frequency of the split conductor movement and the directions of different movements. The liquid storage box pump control module (3.2) of the monitoring unit controls the liquid content in the liquid storage chamber of the adjustable counterweight unit and thereby adjusts the height of the ball (2.2) in the adjustable counterweight unit on the guide rail assembly in the spring oscillator structure to obtain different moments of inertia. The ball (2.2) cooperates with the rotating joint (2.3) to perform swinging, vertical or torsional multi-directional resonance for movements in different directions, thereby controlling the resonant frequency of the spring oscillator structure to achieve active suppression of low-frequency vibrations.

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