Transmission-level high-voltage environment-friendly vacuum circuit breaker latch loss prevention and control adaptation method and structure

Abstract

The invention discloses a transmission-level high-voltage environment-friendly vacuum circuit breaker latch unbuckling prevention and control adaptation method and structure, and belongs to the technical field of high-voltage electrical equipment. According to the invention, a multi-stage damping device is used for vibration energy management and isolation, a main and auxiliary double-buckling-point structure and a mass tuning damper are used for latch structure dynamic optimization, and self-adaptive intelligent control is realized based on a distributed sensor network and a signal analysis technology. Establishing a mapping database of voltage grades and vibration characteristics to complete working condition self-adaptive matching; the corresponding structure comprises a vibration energy management system composed of multi-stage damping devices, an optimization latch with a main and auxiliary double-buckling-point structure, a self-adaptive control system composed of a distributed sensor network and an intelligent controller, and a parameter self-adjusting working condition matching system. Through combination of vibration energy multi-stage management, structure dynamic optimization, intelligent control and working condition matching, transmission of vibration energy to the latch mechanism in the closing process is effectively inhibited, and latch buckling reliability is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of high-voltage electrical equipment technology, specifically to a method and structure for preventing and controlling the failure of transmission-grade high-voltage environmentally friendly vacuum circuit breaker switches. Background Technology

[0002] With the development of power systems, vacuum circuit breakers are widely used in transmission voltage environments such as 72.5kV, 126kV, 145kV, and 252kV. Under these high-voltage conditions, vacuum circuit breakers face technical challenges such as large breaking current and heavy moving end mass. During the closing operation, strong metal-to-metal collisions occur between the moving and stationary contacts, generating a huge mechanical impact force. This impact force is transmitted to the stop mechanism through the transmission system, causing the stop to generate complex vibrations with frequency and amplitude varying with the load. This results in the stop failing to reliably engage, leading to a serious fault of "opening immediately after closing."

[0003] In existing technologies, various solutions have been proposed to address the vibration and bounce problems during the closing process of vacuum circuit breakers. For example, Chinese Patent Publication No. CN118136449B discloses "An Adaptive Closing Method, Electronic Equipment, and Storage Medium for Vacuum Circuit Breakers." This method acquires closing bounce protection information, historical operation information of the closing coil, and historical contact displacement information. Based on a comparison between the actual closing bounce time and the set closing bounce adjustment threshold and closing bounce protection threshold, it adaptively adjusts the operation strategy of the closing coil to reduce closing bounce time and impact, thereby reducing mechanical wear and electrical losses of the equipment. This technology mainly focuses on optimizing the closing process through current control and has a certain effect on suppressing contact bounce.

[0004] However, this existing technology still has the following limitations: First, its control focuses on the closing coil current, without involving the management and isolation of vibration energy in the transmission system, and cannot effectively suppress the transmission of vibration energy to the stop mechanism; Secondly, this method does not dynamically optimize the chuck structure, and the chuck is prone to failure to engage under complex vibration environments; Furthermore, this technology lacks an adaptive matching mechanism for different voltage levels and load characteristics, resulting in insufficient adaptability under high voltage and high current conditions. Summary of the Invention

[0005] The purpose of this invention is to provide a method and structure for preventing and controlling the failure of transmission-grade high-voltage environmentally friendly vacuum circuit breaker stoppers. Through a combination of multi-level vibration energy management, dynamic optimization of the stopper structure, adaptive intelligent control and working condition matching, the invention effectively suppresses the transmission of vibration energy to the stopper mechanism during the closing process, improves the reliability of stopper engagement, and fundamentally solves the problem of "immediate opening after closing" faults caused by vibration.

[0006] This invention is achieved through the following technical solution: This invention provides an adaptation method for preventing the failure of transmission-grade high-voltage environmentally friendly vacuum circuit breaker switches, comprising the following steps: Vibration energy management and isolation are achieved by setting up multi-stage damping devices in the transmission system to manage the transmission energy transfer. Specifically, a first-stage hydraulic damping device is set at the connection between the transmission rod and the operating mechanism, a second-stage viscoelastic damping device is set at the brake mounting base, and a third-stage composite damping layer is set between the brake and the fastening surface.

[0007] The stop mechanism is dynamically optimized by adopting a dual-point design with main and auxiliary fastening points. The main fastening point provides the basic fastening force, while the auxiliary fastening point achieves dynamic force compensation through a pre-compression spring system. A mass-tuned damper is installed inside the stop mechanism, and the stop mechanism is manufactured using functionally graded materials.

[0008] Adaptive intelligent control monitors vibration status in real time through a distributed sensor network, extracts vibration characteristic parameters using signal analysis technology, identifies vibration status using classification algorithms, and establishes a mapping relationship between vibration status and control parameters to achieve dynamic adjustment of the locking parameters.

[0009] The system features adaptive matching of operating conditions, establishes a database mapping the relationship between voltage levels and vibration characteristics, automatically selects control parameter combinations based on the actual operating voltage level, and identifies load characteristics in real time and dynamically optimizes control strategies by monitoring multiple operating parameters.

[0010] Furthermore, the primary hydraulic damping device adopts an adjustable damping coefficient design, with the damping coefficient adjustable range of 0.1–10 N·s / mm. Specifically, the damping coefficient is set to 0.5–2 N·s / mm for the 72.5kV voltage level, 1–3 N·s / mm for the 126kV voltage level, 2–4 N·s / mm for the 145kV voltage level, and 3–6 N·s / mm for the 252kV voltage level.

[0011] Furthermore, the composite damping material used in the secondary viscoelastic damping device includes a matrix material and nanoscale fillers, and adjustable damping characteristics are achieved by adjusting the filler ratio.

[0012] Furthermore, the three-stage composite damping layer is composed of a metal mesh skeleton and an elastic material, with an overall thickness of 2-5 mm. The metal mesh skeleton and the elastic material are composited through a hot pressing process.

[0013] Furthermore, the activation of the auxiliary fastening point adopts a multi-parameter decision model, which dynamically calculates the auxiliary fastening force by monitoring multiple parameters such as vibration amplitude, vibration frequency, fastening angle deviation, and voltage level coefficient.

[0014] Furthermore, the mass-tuned damper includes a mass block, an elastic element, and a damping element. By adjusting the mass of the mass block and the stiffness of the elastic element, the natural frequency of the damper can be adjusted within the range of 50-200Hz.

[0015] Furthermore, the functionally graded material chuck is prepared using powder metallurgy, and the material composition changes continuously from the fastening end to the transmission end, so that the material hardness decreases continuously from the fastening end to the transmission end.

[0016] Furthermore, the signal analysis technique employs wavelet packet analysis, which involves multi-level wavelet packet decomposition of the vibration signal, extracting the wavelet packet coefficient energy of each node as a feature vector, and then using a classification algorithm for identification after dimensionality reduction processing.

[0017] Furthermore, the multi-sensor information fusion technology employs the Kalman filter algorithm to fuse measurement data from multiple sensors.

[0018] This invention also provides an adapter structure for preventing tripping of the tripping element of a transmission-grade high-voltage environmentally friendly vacuum circuit breaker, which implements the above method, comprising: A vibration energy management system consisting of multi-stage damping devices.

[0019] An optimized lever with a main and auxiliary dual-point buckle structure.

[0020] An adaptive control system consisting of a distributed sensor network and an intelligent controller.

[0021] A self-adjusting operating condition matching system.

[0022] The present invention has the following beneficial effects: 1. This invention constructs a three-level damping control system of "source-path-target" to achieve the gradual attenuation and directional isolation of closing impact vibration energy. The first-level hydraulic damping device effectively absorbs low-frequency large-amplitude impacts, the second-level viscoelastic damping device filters mid-frequency vibrations, and the third-level composite damping layer suppresses high-frequency micro-motions, forming a comprehensive vibration control solution covering the entire frequency band. This fundamentally reduces the vibration energy that causes the brake to fail to engage from the transmission path.

[0023] 2. This invention achieves an organic combination of static holding force and dynamic vibration resistance by employing a combination design of main and auxiliary double fastening points working in tandem with a built-in mass tuned damper. The main fastening point provides a stable basic holding force, while the auxiliary fastening point provides instantaneous dynamic compensation force through a preloaded spring system when abnormal vibration is detected. The mass tuned damper actively consumes vibration energy of a specific frequency through the principle of resonance energy absorption. The three work together to ensure the fastener's superior anti-mis-fastening capability under complex vibration conditions, thus improving the reliability of the fastening.

[0024] 3. Based on a distributed sensor network and advanced signal processing algorithms (wavelet packet analysis, Kalman filtering), the system can perceive the microscopic vibration state of the tug in real time and with high precision. Through the "vibration characteristics - control parameters" mapping relationship established by the deep learning model, the system achieves millisecond-level response and micrometer-level precision dynamic adjustment of key parameters such as fastening force and fastening position, upgrading the control mode from the traditional "passive response" to "active prediction and adaptation".

[0025] 4. By establishing a mapping database between voltage levels and vibration characteristics and integrating real-time load identification technology, the system possesses intelligent matching capabilities of "tailoring measures according to voltage" and "adjusting parameters according to load." This not only ensures optimal performance within a wide voltage range of 72.5kV to 252kV, but also automatically optimizes control strategies based on different load characteristics such as capacitive, inductive, and resistive loads. This significantly improves the adaptability and reliability of the equipment in different application scenarios and expands the range of operating conditions it can adapt to.

[0026] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0027] Figure 1 A flowchart of the overall process for adapting a method to prevent and control the tripping of high-voltage environmentally friendly vacuum circuit breakers in power transmission systems; Figure 2 This is a schematic diagram of the vibration energy management system. Figure 3 This is a block diagram of an adaptive intelligent control system. Figure 4 This is a flowchart of an adaptive matching system for operating conditions. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-4 This invention provides a technical solution: a method for preventing and controlling the failure of a high-voltage environmentally friendly vacuum circuit breaker in power transmission. Includes the following steps: The vibration energy management and isolation process involves implementing multi-stage damping devices in the transmission system to manage vibration energy transmission. A primary hydraulic damping device, comprising a hydraulic cylinder, piston assembly, regulating valve, and damping orifice system, is installed at the connection between the transmission rod and the operating mechanism. The damping coefficient is infinitely adjustable by changing the valve core opening. A secondary viscoelastic damping device, using a high-polymer composite damping material composed of a matrix resin and nanoscale fillers, is installed at the stop mount base. This material converts mechanical vibration energy into heat energy for dissipation through its internal friction characteristics. A tertiary composite damping layer, composed of a metal mesh reinforced skeleton and elastic material, is installed between the stop and the engagement surface, forming the final vibration isolation barrier.

[0030] The system employs a dynamic optimization process for the stop mechanism, implementing a multi-mode collaborative fastening mechanism. It utilizes a dual-fastening point design with a primary and auxiliary fastening point. The primary fastening point is located at the front end of the stop body, providing basic fastening assurance. The auxiliary fastening point achieves dynamic force compensation through a pre-compression spring system, automatically activating when vibration exceeds limits. A mass-tuned damper is embedded inside the stop, using a combination of a mass block and an elastic element to suppress vibrations at specific frequencies through resonance. The main body of the stop is manufactured using functionally graded materials, achieving a continuous gradient change in material composition and properties from the fastening end to the transmission end. The fastening end emphasizes high hardness and wear resistance, while the transmission end emphasizes high toughness and fatigue resistance.

[0031] Auxiliary double fastening points: The main fastening point is made of hard alloy, and the auxiliary fastening point uses a piezoelectric sensor to monitor the vibration over-limit signal, activate the pre-compression spring system, and apply dynamic compensation force.

[0032] Mass-tuned damper: The mass block is made of tungsten alloy, the elastic element is made of silicon manganese spring steel, and the damping element is made of silicone oil. The natural frequency is precisely matched through a threaded adjustment mechanism.

[0033] Functionally graded materials: The composition changes continuously from the snap-fit ​​end (80% WC-Co) to the drive end (20% WC-Co), and are prepared using powder metallurgy to ensure a gradient transition in material properties.

[0034] Dynamic optimization of the chock structure: A multi-parameter decision model for auxiliary deduction activation: The model is a linear weighted decision function.

[0035] Where, Fassist is the auxiliary fastening force to be applied; A is the vibration amplitude (mm); f is the dominant vibration frequency (Hz); θ is the fastening angle deviation (°); V level k1, k2, k3, and k4 are voltage level coefficients (dimensionless, e.g., 0.8 for 72.5kV and 1.5 for 252kV); k1, k2, k3, and k4 are weighting coefficients obtained by fitting a large amount of experimental data.

[0036] Frequency tuning of the mass-tuned damper (TMD): By rotating the adjusting bolt, the effective length of the elastic element (silicon manganese spring steel sheet) is changed, thereby altering its stiffness K. The mass M of the mass block (tungsten alloy) remains constant. According to the formula... Calculate and adjust the natural frequency f_n of the TMD to align it with the vibration frequency at which the brake mechanism is most prone to instability under a specific voltage level (typically in the range of 80-150Hz).

[0037] The compositional gradient of the Functionally Graded Material (FGM) chuck: The powder metallurgy process combines multi-layer powder spreading with hot isostatic pressing (HIP). From the engaging end to the driving end, the content of WC (tungsten carbide) powder decreases from 80 wt% to 20 wt%, while the content of Co (cobalt) binder increases from 20 wt% to 80 wt%. This results in a Vickers hardness of over HV1200 at the engaging end and a tensile strength of over 1500 MPa at the driving end.

[0038] An adaptive intelligent control system is implemented to construct a closed-loop control system for real-time monitoring and dynamic adjustment. Multiple sets of sensors, including acceleration, displacement, and force sensors, are deployed at key locations on the stop to form a distributed monitoring network. An intelligent vibration characteristic analysis system is established, using wavelet packet analysis to decompose the vibration signal at multiple scales and extract energy characteristic parameters for each frequency band. A dynamic threshold adjustment mechanism is set up to automatically optimize and adjust the warning threshold of the fastening parameters based on historical operating data and real-time operating conditions. A multi-parameter collaborative control strategy is implemented to dynamically adjust the fastening force and fastening position accuracy in real time according to vibration characteristics.

[0039] Sensor network: including a triaxial accelerometer (frequency response 0-1kHz), a laser displacement sensor (accuracy ±0.01mm), and a strain gauge force sensor, arranged on the chock base, drive rod, and fastening surface.

[0040] Signal processing: A DSP processor is used to run the wavelet packet decomposition algorithm to extract the energy features of wavelet packets from level 1 to level 8, and then the dimensionality is reduced by principal component analysis (PCA).

[0041] Decision control: Based on the classification of vibration state by convolutional neural network (CNN), the control parameters are output to the piezoelectric ceramic actuator to achieve micron-level position adjustment.

[0042] Signal analysis and state recognition process: Data acquisition: The accelerometer collects vibration signals at a sampling frequency of 10 kHz.

[0043] Wavelet packet decomposition: The signal is decomposed into 3 layers of wavelet packets using the 'db4' wavelet basis function, resulting in 8 (2^3) frequency band sub-signals.

[0044] Feature extraction: Calculate the wavelet packet energy E_i of each frequency band sub-signal to form an 8-dimensional feature vector T=[E1,E2,...,E8].

[0045] Dimensionality reduction: Principal component analysis (PCA) is used to reduce the 8-dimensional eigenvectors to 3-dimensional principal component features P=[PC1,PC2,PC3].

[0046] State recognition: The dimensionality-reduced feature vector P is input into a pre-trained convolutional neural network (CNN) classification model, which has two convolutional layers and one fully connected layer. The output is the vibration state level: stable, slight, moderate, severe.

[0047] Control Parameter Mapping and Execution: The intelligent controller stores a "Status Level - Control Parameter" lookup table. For example, when the identified status is "Severe", the controller outputs a command to cause the actuator (piezoelectric ceramic actuator) to increase the auxiliary clamping force to 150% of the rated value within 5ms and to make a 20μm compensation adjustment to the clamping position.

[0048] The system employs an adaptive matching mechanism to establish an intelligent mapping system between voltage levels and vibration characteristics. A complete database of voltage level-vibration characteristic relationships is constructed, storing typical vibration modes and characteristic parameters under different voltage levels. The system automatically selects the optimal combination of control parameters based on the actual operating voltage level, achieving precise matching of the control strategy. During the closing process, load characteristics are identified in real time, and the control strategy is dynamically optimized and adjusted by monitoring multi-dimensional parameters such as the closing speed gradient, vibration energy spectrum distribution, closing force establishment time curve, and dynamic resistance change trend.

[0049] Mapping database: Stores typical vibration spectra, fastening force thresholds, and historical fault data at different voltage levels, and updates them in real time through a cloud computing platform.

[0050] Load identification: Monitoring parameters such as closing speed gradient, vibration energy distribution in the 50-200Hz frequency band, and dynamic resistance change rate. Load characteristic identification algorithm: Employing a fuzzy logic algorithm. Input variables are: closing speed change rate, vibration energy proportion in the 100-200Hz frequency band, and dynamic resistance rise rate. Output variable is the membership degree of the load type (capacitive, inductive, resistive). Based on the output membership degree, the system selects the corresponding control strategy subset; for example, for capacitive loads, it focuses on activating auxiliary damping points earlier and increasing the damping coefficient.

[0051] A transmission-grade high-voltage environmentally friendly vacuum circuit breaker stop failure prevention and control adapter structure for implementing the above method includes: The vibration energy management system, composed of multi-stage damping devices, includes a primary hydraulic damping device located at the connection between the transmission rod and the operating mechanism, a secondary viscoelastic damping device located at the brake mounting base, and a tertiary composite damping layer located between the brake and the fastening surface.

[0052] Preferably, the primary hydraulic damping device includes a hydraulic cylinder, a piston rod, a regulating valve, and a damping orifice system. The regulating valve is driven by a stepper motor to achieve precise control of the valve core opening. The adjustable mechanism of the primary hydraulic damping device is as follows: the regulating valve is a proportional valve, driven by a PWM (Pulse Width Modulation) signal output by the intelligent controller. Based on the real-time monitored acceleration signal of the transmission rod, the controller dynamically adjusts the duty cycle of the PWM signal using a lookup table method (based on a preset voltage level-damping coefficient mapping) or a PID algorithm, thereby linearly changing the valve core opening and achieving stepless precise adjustment of the damping coefficient within the range of 0.1–10 N·s / mm.

[0053] The preferred composition of the secondary viscoelastic damping material is as follows: the matrix material is epoxy resin (EP), and the nano-filler is nano-silica (SiO2) modified with silane coupling agent KH-550, with a particle size of 20-50 nm. The mass fraction of the filler is 15%-25%. When the filler content is 20%, the loss factor (tanδ) of this composite damping material can reach above 0.8 under conditions of 25°C and 100Hz, exhibiting excellent damping performance.

[0054] Preferably, the three-stage composite damping layer is made of a stainless steel mesh skeleton and nitrile rubber through a hot-pressing composite process. The stainless steel mesh skeleton adopts a warp and weft interwoven structure, and the metal mesh skeleton is a densely woven mesh of 316L stainless steel with a thickness of 0.5 mm, a wire diameter of 0.1 mm, and a mesh count of 100 meshes. The elastic material is hydrogenated nitrile rubber (HNBR) with a Shore A hardness of 70±5. The hot-pressing composite process parameters are: temperature 160°C, pressure 10 MPa, and time 15 minutes.

[0055] An optimized tug with a main and auxiliary double-tug structure includes a main tug, an auxiliary tug, a preload spring system, a mass-tuned damper, and a tug body made of a functionally graded material; The main locking point of the optimized stop is made of high-strength alloy steel, and the auxiliary locking point is connected to the main body of the stop through a preloaded spring system.

[0056] A mass-tuned damper consists of a mass block, an elastic element, and a damping element. The natural frequency is precisely matched by adjusting the weight of the mass block and the stiffness of the elastic element.

[0057] Functionally graded material chucks are fabricated using powder metallurgy, with the material composition continuously changing from the engagement end to the transmission end.

[0058] An adaptive control system composed of a distributed sensor network and an intelligent controller includes multiple acceleration sensors, a signal processing unit, a decision control unit, and an actuator; The sensor network of the adaptive control system contains multiple acceleration sensors, which are evenly distributed in the key parts of the throttle.

[0059] The signal processing unit uses a digital signal processor to run a wavelet packet analysis algorithm to extract vibration features.

[0060] The decision control unit establishes a mapping relationship between vibration state and control parameters based on a deep learning model.

[0061] The actuator uses a piezoelectric ceramic actuator, which, together with a precision displacement amplification mechanism, achieves micron-level position adjustment.

[0062] The parameter self-adjusting operating condition matching system includes a database storage unit, a parameter selection unit, and a load identification unit.

[0063] like Figure 1 As shown, the invention's four major technical modules and their logical relationships are illustrated: "energy management" and "structure optimization" lay the physical foundation, "intelligent control" enables precise response, and "condition matching" ensures high efficiency and reliability under various conditions.

[0064] like Figure 2 As shown, this illustrates the transmission path and control system of vibration energy from its source to its target, which is gradually weakened and isolated.

[0065] Transmission system: Vibration source, refers to the operating mechanism of the vacuum circuit breaker that drives the transmission rod, which is the main starting point for the generation and transmission of closing impact force and vibration.

[0066] Primary hydraulic damping: The first line of defense, located at the transmission rod, is used to absorb and dissipate large-amplitude, low-frequency macroscopic impact energy. Its damping coefficient is adjustable to match different voltage levels.

[0067] Secondary viscoelastic damping: intermediate filter, located on the brake mounting base, utilizes the viscoelastic internal friction of polymer materials to further filter and attenuate vibrations that have passed through the first stage, especially effective for mid-frequency vibrations.

[0068] The third-level composite damping layer is the final barrier, located between the latch and the engagement surface. As a direct vibration isolation layer, it mainly suppresses high-frequency vibration and noise, ensuring the microscopic stability of the engagement surface.

[0069] The locking surface: the protected target. This is the final locking position of the stop and the ultimate protected object of the entire control method. After three levels of damping, the vibration energy transmitted to this point has been significantly reduced.

[0070] like Figure 3 As shown, this is a closed-loop logic of intelligent control, from "perception" to "decision" to "execution" and continuous "feedback".

[0071] Sensors: Sensory organs. Responsible for collecting physical signals such as vibration acceleration, displacement, and force.

[0072] Signal processing: Information analysis, filtering and amplifying the raw sensor signal, and extracting characteristic parameters representing the vibration state using techniques such as wavelet packet analysis.

[0073] Intelligent decision-making: The brain, based on the processed feature parameters, uses classification algorithms or models to identify the current vibration state and decides what kind of control needs to be applied (e.g., how much auxiliary fastening force is needed).

[0074] Execution control: Hands and feet receive decision commands, drive piezoelectric ceramic actuators and other actuators, and precisely adjust the engagement parameters.

[0075] Pulley mechanism: A controlled object whose state changes due to the action of the actuator.

[0076] Reverse arrow: Closed-loop feedback, indicating that the system is a continuous closed-loop control. After the control is executed, the new state of the throttle is monitored by the sensor to evaluate the control effect and initiate the next round of adjustment, thereby achieving real-time, adaptive, and precise control.

[0077] like Figure 4 As shown, by combining "pre-set experience" with "real-time operating conditions", an adaptive process from "coarse adjustment" to "fine adjustment" is achieved.

[0078] Application under capacitive loads in 252kV substations: When the system detects a voltage level of 252kV and the load identification unit determines it to be a capacitive load: Parameter preset: The working condition matching system retrieves preset parameters from the database: the first-level damping coefficient is set to 5.5 N·s / mm, and the auxiliary fastening force activation threshold is set to "medium" vibration level.

[0079] Operation process: Upon closing, the primary hydraulic damping device effectively absorbed the initial massive impact generated by the high-current closing. Vibration sensors detected vibration with a characteristic frequency of 120Hz.

[0080] Intelligent Response: The signal processing unit extracts this feature through wavelet packet analysis, and the CNN model identifies it as a "moderate" vibration state. The decision unit then commands the auxiliary deduction point to activate, applying the calculated compensation force. At the same time, the TMD resonates around 120Hz, absorbing a large amount of vibration energy in this frequency band.

[0081] Results: The chuck engaged smoothly and reliably without any bouncing or mis-engaging. Monitoring data showed that the vibration energy transmitted to the engagement surface was reduced by 85% compared to systems without this invention.

[0082] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker for power transmission, characterized in that, Includes the following steps: Vibration energy management and isolation is achieved by setting up a multi-stage damping device in the transmission system to manage the transmission energy transmission. Specifically, a first-stage hydraulic damping device is set at the connection between the transmission rod and the operating mechanism, a second-stage viscoelastic damping device is set at the brake mounting base, and a third-stage composite damping layer is set between the brake and the fastening surface. The stop mechanism is dynamically optimized by adopting a dual-point design with main and auxiliary fastening points. The main fastening point provides the basic fastening force, while the auxiliary fastening point achieves dynamic force compensation through a pre-compression spring system. A mass-tuned damper is installed inside the stop mechanism, and the stop mechanism is manufactured using functionally graded materials. Adaptive intelligent control monitors vibration status in real time through a distributed sensor network, extracts vibration characteristic parameters using signal analysis technology, identifies vibration status using classification algorithms, and establishes a mapping relationship between vibration status and control parameters to achieve dynamic adjustment of the locking parameters. The system features adaptive matching of operating conditions, establishes a database mapping the relationship between voltage levels and vibration characteristics, automatically selects control parameter combinations based on the actual operating voltage level, and identifies load characteristics in real time and dynamically optimizes control strategies by monitoring multiple operating parameters.

2. The method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker tripper according to claim 1, characterized in that, The primary hydraulic damping device adopts an adjustable damping coefficient design, with the damping coefficient adjustable range of 0.1–10 N·s / mm. Specifically, the damping coefficient is set to 0.5–2 N·s / mm for the 72.5kV voltage level, 1–3 N·s / mm for the 126kV voltage level, 2–4 N·s / mm for the 145kV voltage level, and 3–6 N·s / mm for the 252kV voltage level.

3. The method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker tripper according to claim 1, characterized in that, The composite damping material used in the secondary viscoelastic damping device includes a matrix material and nano-sized fillers, and adjustable damping characteristics are achieved by adjusting the filler ratio.

4. The method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker tripper according to claim 1, characterized in that, The three-stage composite damping layer is composed of a metal mesh skeleton and an elastic material, with an overall thickness of 2-5 mm. The metal mesh skeleton and the elastic material are composited through a hot pressing process.

5. The method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker tripper according to claim 1, characterized in that, The activation of the auxiliary fastening point adopts a multi-parameter decision model, which dynamically calculates the auxiliary fastening force by monitoring multiple parameters such as vibration amplitude, vibration frequency, fastening angle deviation and voltage level coefficient.

6. The method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker tripper according to claim 1, characterized in that, The mass-tuned damper includes a mass block, an elastic element, and a damping element. By adjusting the mass of the mass block and the stiffness of the elastic element, the natural frequency of the damper can be adjusted within the range of 50-200Hz.

7. The method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker tripper according to claim 1, characterized in that, The functionally graded material chuck is prepared using powder metallurgy, and the material composition changes continuously from the fastening end to the transmission end, so that the material hardness decreases continuously from the fastening end to the transmission end.

8. The method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker tripper according to claim 1, characterized in that, The signal analysis technique employs wavelet packet analysis, which involves multi-level wavelet packet decomposition of the vibration signal, extracting the wavelet packet coefficient energy of each node as a feature vector, and then using a classification algorithm for identification after dimensionality reduction.

9. The method for preventing and adapting the tripping of a high-voltage environmentally friendly vacuum circuit breaker tripper according to claim 1, characterized in that, The multi-sensor information fusion technology employs the Kalman filter algorithm to fuse measurement data from multiple sensors.

10. A transmission-grade high-voltage environmentally friendly vacuum circuit breaker stop failure prevention and control adapter structure implementing the method of any one of claims 1-9, characterized in that... include: A vibration energy management system composed of multi-stage damping devices; An optimized lever with a main and auxiliary dual-point buckle structure; An adaptive control system consisting of a distributed sensor network and an intelligent controller; A working condition matching system with self-adjusting parameters.

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