Anti-seismic power cabinet device and control method thereof

Abstract

The invention relates to the technical field of power cabinets, and provides an anti-seismic power cabinet device and a control method thereof. The anti-seismic power cabinet device comprises a cabinet body which is of a frame structure and is internally provided with a damping supporting piece; the damping system is arranged on the cabinet body and comprises a basic damping element and a self-adaptive damping element; the sensor assembly is arranged in the cabinet body and used for monitoring the vibration acceleration, the inclination angle and the equipment displacement state of the cabinet body; the data processing and control assembly is connected with the sensor assembly; and the protection execution mechanism is in control connection with the data processing and control assembly, is configured in the cabinet body, and is used for responding to the protection triggering instruction to execute a protection action. Through effective damping and protection measures, the mechanical stress of vibration such as earthquakes to equipment in the power cabinet is reduced, and the abrasion and fatigue damage of the equipment are reduced, so that the service life of the equipment is prolonged, and the maintenance cost and replacement frequency of the equipment are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power cabinets, in particular to an anti-seismic power cabinet device and a control method thereof. BACKGROUND

[0002] At present, most of the power cabinets on the market still adopt the traditional fixed installation method, mainly by enhancing the cabinet structure to improve the anti-seismic performance. However, this approach often leads to heavy structure, rising cost, and limited actual anti-seismic effect. Some power cabinets have tried to introduce shock-absorbing devices, but their design is often complex, inconvenient to maintain, and the shock-absorbing performance is difficult to maintain stable.

[0003] The existing anti-seismic technology of power cabinets mainly has the following problems: first, the structure is heavy, which is not conducive to transportation and installation; second, the anti-seismic ability is insufficient, which is difficult to effectively resist strong earthquake impact; third, the design is complex, the maintenance cost is high, which affects its long-term stable operation. These problems make the safety protection ability of the power cabinet weak in the vibration environment such as earthquake, which easily leads to power system failure and even safety accidents. SUMMARY

[0004] In order to solve at least one of the above technical problems, the first aspect of the present application proposes an anti-seismic power cabinet device.

[0005] The second aspect of the present application also proposes a control method of the anti-seismic power cabinet device.

[0006] Therefore, the first aspect of the present application proposes an anti-seismic power cabinet device, which comprises: a cabinet body adopting a frame structure, a shock-absorbing support being arranged in the cabinet body; a shock-absorbing system arranged in the cabinet body, the shock-absorbing system comprising a basic shock-absorbing element and a self-adaptive shock-absorbing element; a sensor assembly arranged in the cabinet body, for monitoring the vibration acceleration, inclination angle and equipment displacement state of the cabinet body; a data processing and control assembly connected with the sensor assembly, configured to: receive and analyze sensor data, perform vibration intensity evaluation, spectrum analysis and structure risk level determination; generate a hierarchical control instruction according to the analysis result; output a control signal to the self-adaptive shock-absorbing element to dynamically adjust the damping coefficient or stiffness of the self-adaptive shock-absorbing element; generate a protection trigger instruction when the vibration intensity or risk level exceeds a preset safety threshold; and a protection execution mechanism connected with the data processing and control assembly and arranged in the cabinet body, for executing a protection action in response to the protection trigger instruction.

[0007] In combination with the first aspect, in some implementable manners, the protection action comprises at least one of cutting off the power supply of the equipment, locking the equipment in the cabinet body to prevent displacement, and locking the cabinet door.

[0008] With reference to the first aspect, in some possible implementation manners, the base damping element includes a rubber damping pad and / or a spring damper, and is arranged between the bottom of the cabinet body and the installation base; the adaptive damping element is a magneto-rheological damper, and is arranged on the damping support; the data processing and control component changes the viscosity of the magneto-rheological fluid by adjusting the current input to the magneto-rheological damper.

[0009] With reference to the first aspect, in some possible implementation manners, the damping system further includes an overload protection device arranged at the end of the stroke of the adaptive damping element, and configured to provide mechanical limit protection when the vibration displacement or impact force exceeds the maximum adjustment capacity of the adaptive damping element.

[0010] With reference to the first aspect, in some possible implementation manners, the sensor component includes an acceleration sensor, an inclination sensor and a strain sensor.

[0011] With reference to the first aspect, in some possible implementation manners, the hierarchical control instruction includes two levels: a first-level instruction for enhancing the damping force or stiffness of the adaptive damping element when it is monitored that the vibration intensity exceeds the first preset threshold but is below the safety threshold; and a second-level instruction for generating a protection triggering instruction and simultaneously adjusting the damping force or stiffness of the adaptive damping element to the maximum value when it is determined that the vibration intensity or risk level exceeds the safety threshold.

[0012] With reference to the first aspect, in some possible implementation manners, the spectrum analysis performed by the data processing and control component is used to identify the dominant frequency component of the vibration; and the dynamic adjustment of the damping coefficient or stiffness of the adaptive damping element specifically includes adjusting the excitation current of the magneto-rheological damper according to the identified dominant frequency, so that the damping coefficient of the magneto-rheological damper matches the dominant frequency.

[0013] With reference to the first aspect, in some possible implementation manners, the anti-seismic power cabinet device further includes a communication component arranged in the cabinet body and configured to receive an external earthquake warning signal; and the data processing and control component is configured to perform at least one of the following operations in advance after receiving the external earthquake warning signal: pre-adjusting the damping or stiffness of the adaptive damping element to a preset defense value, starting a high-frequency monitoring mode of the sensor component, or generating a warning information.

[0014] With reference to the first aspect, in some possible implementation manners, the anti-seismic power cabinet device further includes a backup power source arranged in the cabinet body and configured to supply power to the device to ensure that the device can continue to work for a predetermined time after the main power source is interrupted.

[0015] The second aspect of the application provides a control method of the anti-seismic power cabinet device, which is used for controlling the anti-seismic power cabinet device in any of the above technical solutions, comprising: monitoring the vibration acceleration, inclination angle and equipment displacement state of the cabinet body through the sensor assembly; receiving the sensor data through the data processing and control assembly, and performing vibration intensity evaluation, spectrum analysis and structure risk level determination; adjusting the damping coefficient or stiffness of the adaptive damping element according to the evaluation result; when it is determined that the vibration intensity or risk level exceeds the preset safety threshold, generating a protection triggering instruction to drive the active protection execution mechanism to perform a protection action.

[0016] Compared with the related art, the application has the following technical effects:

[0017] The anti-seismic power cabinet device provided by the application comprises a cabinet body, a damping system, a sensor assembly, a data processing and control assembly and a protection execution mechanism. The cabinet body adopts a frame structure and is internally provided with damping supports, cooperates with the damping system comprising a basic damping element and an adaptive damping element, forms a multi-level damping system, can effectively absorb and disperse seismic energy, reduces the impact of earthquakes on the internal equipment of the power cabinet, and significantly improves the stability and reliability of the power cabinet in an earthquake environment.

[0018] The sensor assembly can monitor multi-dimensional data such as the vibration acceleration, inclination angle and equipment displacement state of the cabinet body in real time, provides a rich source of information for comprehensively and accurately grasping the running state of the power cabinet under vibration such as earthquakes, and helps to timely find potential safety hazards.

[0019] The data processing and control assembly can deeply analyze the data collected by the sensor, perform vibration intensity evaluation, spectrum analysis and structure risk level determination, and generate a graded control instruction according to the analysis result, dynamically adjust the damping coefficient or stiffness of the adaptive damping element, realize intelligent and precise control of the damping system, and further improve the damping effect. The adaptive damping element can dynamically adjust its own parameters according to the instruction of the data processing and control assembly, adapt to seismic vibration of different intensities and frequencies, so that the damping system can perform better performance under different working conditions, and the adaptability and response ability of the power cabinet to complex seismic environments are improved.

[0020] When it is determined that the vibration intensity or risk level exceeds the preset safety threshold, the data processing and control assembly can quickly generate a protection triggering instruction, the protection execution mechanism responds to the instruction to perform a protection action, timely protects the internal equipment of the power cabinet, avoids damage of the equipment due to excessive vibration, and reduces economic loss and power failure risk.

[0021] The anti-vibration power cabinet device provided by the application reduces the mechanical stress of the internal equipment of the power cabinet caused by vibration such as earthquake through effective damping and protection measures, reduces the wear and fatigue damage of the equipment, thereby prolonging the service life of the equipment and reducing the maintenance cost and replacement frequency of the equipment.

[0022] Additional aspects and advantages of the application will be made apparent by the following description portion, or will be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the application will become apparent and be readily understood by considering the following detailed description, including the accompanying drawings, in which:

[0024] Figure 1 The structural schematic diagram of the anti-vibration power cabinet device in one embodiment of the application is shown;

[0025] Figure 2 The flowchart of the control method of the anti-vibration power cabinet device in one embodiment of the application is shown.

[0026] Among them, Figure 1 The correspondence between the reference signs and the component names in the accompanying drawings is as follows:

[0027] 100 cabinet body, 102 damping support, 110 damping system, 112 base damping element, 116 self-adaptive damping element, 118 sensor assembly, 120 data processing and control assembly, 130 protection execution mechanism, 140 overload protection device, 150 communication assembly, 160 backup power supply. DETAILED DESCRIPTION

[0028] In order to enable the above-mentioned purposes, features and advantages of the application to be more clearly understood, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth in order to provide a thorough understanding of the application, but the application can also be implemented in other ways different from those described herein, therefore, the protection scope of the application is not limited by the specific embodiments disclosed below.

[0030] The following refers to Figure 1 and Figure 2 The anti-vibration power cabinet device and the control method thereof according to some embodiments of the application are described.

[0031] As Figure 1As shown, the first aspect of the present application proposes an anti-seismic power cabinet device, comprising: a cabinet body 100 adopting a frame structure, the inside of the cabinet body 100 being provided with a damping support 102; a damping system 110 provided in the cabinet body 100, the damping system 110 comprising a basic damping element 112 and an adaptive damping element 116; a sensor assembly 118 provided in the cabinet body 100, for monitoring the vibration acceleration, tilt angle and equipment displacement state of the cabinet body 100; a data processing and control assembly 120 connected with the sensor assembly 118, configured to: receive and analyze sensor data, perform vibration intensity evaluation, spectrum analysis and structure risk level determination; generate graded control instructions according to the analysis results; output control signals to the adaptive damping element 116, dynamically adjust the damping coefficient or stiffness of the adaptive damping element 116; when the vibration intensity or risk level is determined to exceed a preset safety threshold, generate a protection trigger instruction; a protection execution mechanism 130 connected with the data processing and control assembly 120 and configured in the inside of the cabinet body 100, for executing a protection action in response to the protection trigger instruction.

[0032] The anti-seismic power cabinet device provided by the present application comprises a cabinet body 100, a damping system 110, a sensor assembly 118, a data processing and control assembly 120 and a protection execution mechanism 130. The cabinet body 100 adopts a frame structure and is internally provided with a damping support 102, cooperates with the damping system 110 comprising a basic damping element 112 and an adaptive damping element 116 to form a multi-level damping system, which can effectively absorb and disperse seismic energy, reduce the impact of earthquakes on the internal equipment of the power cabinet, and significantly improve the stability and reliability of the power cabinet in earthquake environment.

[0033] The sensor assembly 118 can monitor multi-dimensional data such as the vibration acceleration, tilt angle and equipment displacement state of the cabinet body 100 in real time, providing a rich source of information for comprehensively and accurately grasping the running state of the power cabinet under vibration such as earthquakes, which helps to timely discover potential safety hazards.

[0034] The data processing and control assembly 120 can deeply analyze the data collected by the sensor, perform vibration intensity evaluation, spectrum analysis and structure risk level determination, and generate graded control instructions according to the analysis results, dynamically adjust the damping coefficient or stiffness of the adaptive damping element 116, realize intelligent and precise control of the damping system 110, and further improve the damping effect. The adaptive damping element 116 can dynamically adjust its own parameters according to the instructions of the data processing and control assembly 120, adapt to seismic vibrations of different intensities and frequencies, so that the damping system 110 can perform better performance under different working conditions, and improve the adaptability and response ability of the power cabinet to complex seismic environment.

[0035] When the vibration intensity or risk level is determined to exceed the preset safety threshold, the data processing and control component 120 can quickly generate a protection trigger command, and the protection actuator 130 responds to the command to execute the protection action, so as to protect the equipment inside the power cabinet in a timely manner, avoid damage to the equipment due to excessive vibration, and reduce economic losses and power outage risks.

[0036] The earthquake-resistant power cabinet device provided in this application reduces the mechanical stress on the internal equipment of the power cabinet caused by earthquakes and other vibrations through effective shock absorption and protection measures, thereby reducing the wear and fatigue damage of the equipment, extending the service life of the equipment, and reducing the maintenance cost and replacement frequency of the equipment.

[0037] In some embodiments provided in this application, the protective actions include at least one of cutting off the power supply to the equipment, locking the equipment inside the cabinet 100 to prevent displacement, and locking the cabinet door.

[0038] In this embodiment, the protection actuator includes a tripping device, distributed device restraints, and a door locking system. The tripping device is used to cut off the power supply, and multiple distributed device restraints are installed on critical equipment to lock it. The door locking system is used to lock the cabinet door.

[0039] During strong vibrations, automatic power cut-off prevents electrical accidents such as short circuits and arcing. Locking the equipment inside the cabinet prevents displacement and collisions, reducing mechanical damage. Locking the cabinet door enhances structural rigidity and prevents foreign object intrusion. These protective actions work in conjunction with the sensor assembly 118 and the adaptive vibration damping system 110 to form a closed-loop control system of "monitoring-adjustment-protection," achieving graded response. For minor vibrations, only vibration damping parameters are optimized; for severe vibrations, emergency protection is triggered, balancing safety and power supply continuity. This solution is particularly suitable for earthquake-prone areas or critical power facilities, effectively reducing the risk of equipment damage, minimizing post-earthquake maintenance costs, and ensuring rapid safety protection under extreme conditions.

[0040] like Figure 1 As shown, in some embodiments provided in this application, the basic damping element 112 includes a rubber damping pad and / or a spring damper, which is disposed between the bottom of the cabinet 100 and the mounting base; the adaptive damping element 116 is a magnetorheological damper, which is disposed on the damping support 102; wherein, the data processing and control component 120 changes the viscosity of the magnetorheological fluid by adjusting the current input to the magnetorheological damper.

[0041] In this embodiment, the rubber damping pad and spring damper serve as passive damping layers, which can effectively absorb high-frequency vibration energy and reduce the direct impact between the cabinet 100 and the installation foundation, making them suitable for normal vibration conditions.

[0042] As the active adjustment unit, the magneto-rheological damper adjusts the viscosity of the magneto-rheological fluid in real time by changing the current, so as to dynamically adapt to different vibration frequencies and amplitudes. The magneto-rheological damper has a fast response speed (millisecond level) and can quickly provide variable damping force in a strong earthquake to suppress large-amplitude low-frequency vibration and make up for the limitations of passive damping.

[0043] The data processing system intelligently calculates the current value according to the vibration frequency spectrum, acceleration and other data fed back by the sensor, and adjusts the damping coefficient of the magneto-rheological damper. For example, the current is reduced to reduce the damping force to avoid excessive constraint in high-frequency microseismicity, and the current is increased to increase the damping force to suppress the cabinet 100 swing in low-frequency strong earthquake. By dynamically adjusting, the defects of the traditional damper "one size fits all" are avoided, and a wider spectrum of damping effect is achieved.

[0044] The magneto-rheological damper is integrated in the damping support 102 inside the cabinet 100, directly strengthens the frame node stiffness, and forms a "top-down linkage" three-dimensional protection system with the passive damping element 112 to reduce the risk of cabinet 100 tilting or deformation. The magneto-rheological damper has no mechanical valve structure and only needs to be adjusted by current, so it has low failure rate and low energy consumption; the passive damping element serves as a redundant backup and can still provide basic protection even if the control system fails temporarily.

[0045] As shown in Figure 1 In some embodiments provided by the present application, the damping system 110 further comprises an overload protection device 140 arranged at the end of the stroke of the adaptive damping element 116, which provides mechanical limit protection when the vibration displacement or impact force exceeds the maximum adjustment capacity of the adaptive damping element 116.

[0046] In this embodiment, the damping system 110 further comprises an overload protection device 140. When the vibration displacement or impact force exceeds the adjustment limit of the magneto-rheological damper, the overload protection device 140 provides rigid mechanical limit at the end of the stroke to prevent the damping element from being damaged due to overstroke, and at the same time prevent the cabinet 100 structure from being deformed or overturned due to excessive displacement. The adaptive damping forms "electronic control + mechanical" double protection, which can still guarantee basic safety when the control system fails or the earthquake intensity far exceeds the design value, and significantly improves the fault tolerance of the anti-seismic system.

[0047] Specifically, the overload protection device 140 comprises a locking pin, an electromagnetic valve and a lock hole. In normal operation, the locking pin is retracted and has no contact with the moving parts. When overloaded, the control system detects that the displacement or impact force is about to exceed the limit, sends a signal to the electromagnetic valve, and the electromagnetic valve instantaneously explodes to push the locking pin into the lock hole, rigidly locks the adaptive damping element 116 with the cabinet frame, and forms a solid mechanical connection.

[0048] By limiting the maximum displacement, the risk of equipment collision, line pull-out and other risks in the cabinet is reduced, and the cabinet door is prevented from opening sharply due to severe vibration, thereby reducing secondary disasters.

[0049] In some embodiments provided in the present application, the sensor assembly 118 comprises an acceleration sensor, an inclination sensor and a strain sensor.

[0050] In this embodiment, the acceleration sensor can capture the vibration frequency and intensity in real time, and identify the characteristics of seismic waves; the inclination sensor monitors the inclination angle of the cabinet 100 to prevent structural instability; and the strain sensor detects the deformation of the key support to evaluate the structural health status.

[0051] Multi-source data fusion provides more comprehensive working condition judgment basis for the control system, for example: distinguishing high-frequency vibration from low-frequency shaking through acceleration frequency spectrum; predicting the structural risk level in combination with inclination and strain data; enabling the seismic system to have the ability from "passive response" to "active prevention", which is particularly suitable for key power facilities with strict requirements for power supply continuity.

[0052] In some embodiments provided in the present application, the hierarchical control instruction comprises two levels: the first level instruction: when it is monitored that the vibration intensity exceeds the first preset threshold but is lower than the safety threshold, the damping force or stiffness of the adaptive damping element 116 is enhanced; the second level instruction: when it is determined that the vibration intensity or risk level exceeds the safety threshold, a protection triggering instruction is generated and at the same time the damping force or stiffness of the adaptive damping element 116 is adjusted to the maximum value.

[0053] In this embodiment, the hierarchical control instruction comprises the first level instruction and the second level instruction. The first level instruction, when detecting moderate intensity vibration, effectively suppresses vibration propagation by enhancing the damping force / stiffness of the magneto-rheological damper, controls the displacement of the cabinet 100 within a safe range, and avoids premature triggering of protection actions affecting power supply continuity. The second level instruction synchronously executes double protection in strong earthquakes: adjusts the damping force to the maximum to maximize the absorption of impact energy, and at the same time triggers protection actions such as power-off / locking, forming a double insurance mechanism of "active damping + emergency protection".

[0054] The hierarchical strategy avoids over-response of the system in slight vibration, and reduces energy consumption. While the threshold triggering mechanism ensures full protection in truly dangerous working conditions, prolonging the service life of the equipment. The seismic system has both fine adjustment capability and reliable protection in extreme conditions, and is particularly suitable for key scenarios that need to balance power supply stability and equipment safety.

[0055] In some embodiments provided in the present application, the spectrum analysis performed by the data processing and control assembly 120 is used to identify the dominant frequency component of the vibration; and the dynamic adjustment of the damping coefficient or stiffness of the adaptive damping element 116 specifically comprises: adjusting the excitation current of the magneto-rheological damper according to the identified dominant frequency, so that the damping coefficient of the magneto-rheological damper matches the dominant frequency.

[0056] In this embodiment, the dominant frequency component of the earthquake is identified by real-time spectral analysis, and the excitation current of the magnetorheological damper is dynamically adjusted to make the damping characteristic optimally match the current vibration frequency. For example, the damping force is increased for low-frequency shaking, and the damping is appropriately reduced for high-frequency vibration to avoid energy superposition.

[0057] When the vibration component close to the inherent frequency of the cabinet 100 is detected, the damping coefficient is immediately adjusted to the anti-resonance interval, effectively cutting off the energy transmission path between the "earthquake wave-cabinet 100", and reducing the amplitude amplification effect caused by resonance.

[0058] Based on the fast spectral analysis of digital signal processing and the instantaneous rheological characteristics of magnetorheological fluid, dynamic adjustment is realized in each vibration period. While ensuring the shock absorption efficiency, fatigue damage of equipment connections caused by over-damping is avoided.

[0059] As shown in Figure 1 In some embodiments provided by the present application, the anti-seismic power cabinet device further comprises a communication component 150 arranged in the cabinet 100, configured to receive an external earthquake warning signal; and the data processing and control component 120 is configured to perform at least one of the following operations in advance after receiving the external earthquake warning signal: pre-adjusting the damping or stiffness of the adaptive shock absorption element 116 to a preset defense value, starting a high-frequency monitoring mode of the sensor component 118, or generating a warning information.

[0060] In this embodiment, the anti-seismic power cabinet device further comprises a communication component 150. After receiving the earthquake warning signal, the magnetorheological damper is adjusted to a preset defense parameter in advance to form an optimal shock absorption state before the earthquake wave arrives, solving the hysteresis problem of the traditional system "after the earthquake response".

[0061] Triggering the high-frequency monitoring mode realizes accurate capture in the P-wave to S-wave transition stage, and provides more complete time-frequency characteristic data for the control decision in the subsequent main shock stage. Through the linkage of warning information to upstream and downstream equipment, an anti-seismic cooperative protection of the power grid level is formed to avoid secondary fault chain reaction. The anti-seismic response of the power cabinet is upgraded from "passive response" to "active defense", effectively improving the survival ability of key power facilities in strong earthquakes.

[0062] As shown in Figure 1 In some embodiments provided by the present application, the anti-seismic power cabinet device further comprises a backup power supply 160 arranged in the cabinet 100, configured to supply power to the device to ensure that the device can still work continuously for a predetermined time after the main power supply is interrupted.

[0063] In this embodiment, after the main power supply is interrupted, the backup power supply 160 can maintain the continuous work (endurance≥2 hours) of the shock absorption system 110, the sensor and the control unit, ensuring the continuous protection in the earthquake aftershock stage and avoiding the shock absorption failure caused by power failure.

[0064] Ensure the complete implementation of key operations after the earthquake (such as equipment locking, state monitoring) to prevent secondary disasters. Through double-redundant power supply of the main power supply and the backup power supply 160, the anti-seismic system realizes reliable operation in the whole cycle from pre-earthquake warning to post-earthquake disposal. It is suitable for the scenario of power grid paralysis caused by strong earthquakes, ensuring that the power cabinet maintains core protection functions under extreme working conditions.

[0065] As shown in Figure 2 The second aspect of the present application proposes a control method of an anti-seismic power cabinet device, for controlling the anti-seismic power cabinet device in any of the above embodiments, comprising:

[0066] S202: Monitor the vibration acceleration, tilt angle and equipment displacement state of the cabinet body through the sensor assembly;

[0067] S204: Receive sensor data through the data processing and control assembly, perform vibration intensity evaluation, spectrum analysis and structure risk level determination;

[0068] S206: Adjust the damping coefficient or stiffness of the adaptive damping element according to the evaluation result;

[0069] S208: When the vibration intensity or risk level exceeds the preset safety threshold, generate a protection trigger instruction to drive the active protection actuator to perform a protection action.

[0070] The control method of the anti-seismic power cabinet device provided by the present application can obtain multi-dimensional data such as cabinet vibration acceleration, tilt angle and equipment displacement state in real time through the sensor assembly, providing a comprehensive and accurate information basis for subsequent analysis, which helps to timely discover potential seismic risk hidden dangers.

[0071] The data processing and control assembly performs vibration intensity evaluation, spectrum analysis and structure risk level determination on the sensor data, which can deeply understand the characteristics of the earthquake and the impact on the power cabinet, and provide a scientific basis for subsequent control decisions.

[0072] According to the evaluation result, the damping coefficient or stiffness of the adaptive damping element is adjusted, so that the damping system can be adjusted in real time according to the actual earthquake situation, precise damping is realized, and the impact of the earthquake on the power cabinet is effectively reduced.

[0073] When the vibration intensity or risk level exceeds the preset safety threshold, a protection trigger instruction is quickly generated to drive the protection actuator to act, such as cutting off the power supply, locking the equipment, etc., to timely protect the power cabinet and internal equipment, reduce losses, and improve the reliability of power supply.

[0074] In specific embodiments, the anti-seismic power cabinet provided by the present application mainly includes the following components:

[0075] Anti-seismic structure: A unique frame structure is adopted to improve the overall rigidity and seismic performance of the cabinet by optimizing the structural layout and connection nodes. At the same time, shock-absorbing supports are installed inside the cabinet to effectively disperse and absorb the vibration energy generated by earthquakes.

[0076] Shock-absorbing materials: High-performance shock-absorbing materials such as rubber shock pads and spring shock absorbers are selected and arranged at key positions of the cabinet, such as the bottom, sides, and top, to further reduce the impact of earthquakes on the cabinet.

[0077] Intelligent monitoring system: An acceleration sensor and data processing module are integrated to monitor the vibration of the power cabinet in real time. When abnormal vibration is detected, the system can automatically alarm and trigger corresponding protection measures to ensure the safe operation of the power cabinet.

[0078] The workflow of the entire solution is as follows: When an earthquake occurs, the anti-seismic structure first withstands and disperses the vibration energy generated by the earthquake; the shock-absorbing materials further absorb and slow down the vibration to protect the electrical equipment and components inside the power cabinet from damage; the intelligent monitoring system monitors the vibration in real time to ensure the safe operation of the power cabinet under extreme conditions.

[0079] The key links of the above solution include the design of the anti-seismic structure, the selection and arrangement of shock-absorbing materials, and the integration of the intelligent monitoring system. These links directly determine the anti-seismic performance, structural lightness, and maintenance simplicity of the power cabinet.

[0080] In summary, the anti-seismic power cabinet device provided by the present application has the following beneficial technical effects:

[0081] Improved anti-seismic performance: The unique anti-seismic structure and shock-absorbing material design effectively improve the anti-seismic performance of the power cabinet, ensuring stable operation under strong earthquakes.

[0082] Lightweight structure: Optimized frame design and lightweight materials are used to reduce the weight and volume of the power cabinet, facilitating transportation and installation.

[0083] Maintenance simplicity: The shock-absorbing materials are replaceable, and the intelligent monitoring system is easy to maintain and upgrade, reducing long-term operation costs.

[0084] Enhanced safety: The improvement of anti-seismic performance effectively ensures the stable operation of the power system and the safety of power supply, reducing power failures and safety accidents caused by earthquakes.

[0085] In addition to rubber shock pads and spring shock absorbers, other high-performance shock-absorbing materials such as air cushions and hydraulic shock absorbers can also be considered. Air cushions and hydraulic shock absorbers achieve shock-absorbing effects by absorbing and dispersing vibration energy. When selecting alternative solutions, factors such as material cost, performance, application environment, and maintenance cost need to be considered comprehensively.

[0086] The adjustable damping support is added to the anti-seismic structure, which enables the power cabinet to be flexibly adjusted according to different installation environments and anti-seismic requirements. This modification not only improves the adaptability and flexibility of the power cabinet, but also further enhances its anti-seismic performance.

[0087] Technical terms are explained as follows:

[0088] Anti-seismic structure: refers to a structural system that improves the stability and safety of buildings or equipment in vibration environments such as earthquakes through specific design and material selection.

[0089] Damping material: refers to a material that can absorb, disperse, or isolate vibration energy, commonly used to reduce the impact of mechanical vibration or earthquakes on buildings, equipment, etc.

[0090] Intelligent monitoring system: integrates sensors, data processing modules, and alarm devices, etc., for real-time monitoring and evaluation of the running state of equipment or systems, and automatically alarms or triggers protection measures in abnormal conditions.

[0091] In this application, the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and other terms should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integral connection; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0092] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0093] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A seismic-resistant power switchgear, characterized in that, include: The cabinet adopts a frame structure, and the cabinet is equipped with shock-absorbing support components inside; A vibration damping system is installed in the cabinet, and the vibration damping system includes basic vibration damping elements and adaptive vibration damping elements; A sensor assembly is installed in the cabinet to monitor the cabinet's vibration acceleration, tilt angle, and equipment displacement. The data processing and control component, connected to the sensor component, is configured to: receive and analyze sensor data, perform vibration intensity assessment, spectrum analysis, and structural risk level determination; generate graded control commands based on the analysis results; and output control signals to the adaptive damping element to dynamically adjust the damping coefficient or stiffness of the adaptive damping element. When the vibration intensity or risk level is determined to exceed the preset safety threshold, a protection trigger command is generated; The protection actuator is connected to the data processing and control component and is configured inside the cabinet to perform protection actions in response to the protection trigger command.

2. The earthquake-resistant power switchgear according to claim 1, characterized in that, The protective actions include at least one of the following: cutting off the power supply to the equipment, locking the equipment inside the cabinet to prevent displacement, and locking the cabinet door.

3. The earthquake-resistant power switchgear according to claim 1, characterized in that, The basic shock-absorbing elements include rubber shock-absorbing pads and / or spring shock absorbers, which are installed between the bottom of the cabinet and the mounting foundation. The adaptive damping element is a magnetorheological damper, which is disposed on the damping support; The data processing and control component changes the viscosity of the magnetorheological fluid by adjusting the current input to the magnetorheological damper.

4. The earthquake-resistant power switchgear according to claim 3, characterized in that, The shock absorption system also includes: An overload protection device is installed at the end of the stroke of the adaptive damping element to provide mechanical limit protection when the vibration displacement or impact force exceeds the maximum adjustment capacity of the adaptive damping element.

5. The earthquake-resistant power switchgear according to claim 1, characterized in that, The sensor assembly includes an accelerometer, a tilt sensor, and a strain sensor.

6. The earthquake-resistant power switchgear according to claim 1, characterized in that, The hierarchical control command includes two levels: Level 1 instruction: When the vibration intensity is detected to exceed the first preset threshold but is below the safety threshold, increase the damping force or stiffness of the adaptive damping element; Second-level instruction: When the vibration intensity or risk level is determined to exceed the safety threshold, the protection trigger instruction is generated and the damping force or stiffness of the adaptive damping element is adjusted to the maximum value.

7. The earthquake-resistant power switchgear according to claim 1, characterized in that, The spectral analysis performed by the data processing and control component is used to identify the dominant frequency components of the vibration; the dynamic adjustment of the damping coefficient or stiffness of the adaptive damping element specifically includes: adjusting the excitation current of the magnetorheological damper according to the identified dominant frequency, so that the damping coefficient of the magnetorheological damper matches the dominant frequency.

8. The earthquake-resistant power switchgear according to claim 1, characterized in that, Also includes: A communication component, installed in the cabinet, is used to receive external earthquake early warning signals; The data processing and control component is configured to perform at least one of the following operations in advance after receiving the external earthquake early warning signal: pre-adjust the damping or stiffness of the adaptive damping element to a preset defense value, activate the high-frequency monitoring mode of the sensor component, or generate early warning information.

9. The earthquake-resistant power switchgear according to any one of claims 1 to 8, characterized in that, Also includes: A backup power supply, located inside the cabinet, is used to power the device and ensure that the device can continue to operate for a predetermined time after the main power supply is interrupted.

10. A control method for a seismic-resistant power switchgear, used to control the seismic-resistant power switchgear as described in any one of claims 1 to 9, characterized in that, include: The vibration acceleration, tilt angle, and equipment displacement of the cabinet are monitored using sensor components. The data processing and control components receive sensor data to perform vibration intensity assessment, spectrum analysis, and structural risk level determination. Based on the evaluation results, adjust the damping coefficient or stiffness of the adaptive damping element; When the vibration intensity or risk level is determined to exceed the preset safety threshold, a protection trigger command is generated to drive the active protection actuator to perform protection actions.

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