CN115219013A - Vibration monitoring equipment and system for high-voltage switch equipment and monitoring method and device thereof - Google Patents
Vibration monitoring equipment and system for high-voltage switch equipment and monitoring method and device thereof Download PDFInfo
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Abstract
The application relates to vibration monitoring equipment and system of high-voltage switch equipment, and a monitoring method and device thereof. The device comprises a self-energy supply module, a vibration signal acquisition module, a clock circuit module and a processor, wherein the vibration signal acquisition module acquires vibration signals of external high-voltage switch equipment, the vibration signals are sent to the processor, when the processor detects that the amplitude of the vibration signals exceeds a preset amplitude threshold value, the vibration signals are subjected to analysis processing and analog-to-digital conversion processing in sequence, digitalized vibration waveform information is obtained, clock circuit signals generated by the clock circuit module at the current time are read, a time label is added to the digitalized vibration waveform information based on the clock circuit signals, target vibration waveform information is obtained, and the target vibration waveform information is sent to an external control terminal, wherein the analysis processing comprises at least one of waveform analysis, digital filtering processing and smoothing processing. The online vibration monitoring of the high-voltage switch equipment can be realized by adopting the equipment.
Description
Technical Field
The application relates to the technical field of power equipment monitoring, in particular to high-voltage switch equipment vibration monitoring equipment, a high-voltage switch equipment vibration monitoring system, a high-voltage switch equipment vibration monitoring method applied to the high-voltage switch equipment vibration monitoring system and a high-voltage switch equipment vibration monitoring device.
Background
High-voltage switchgear serves as an important element of an electric power system, and the reliability of the high-voltage switchgear has a crucial influence on the operational reliability of the electric power system. Most switch failures are investigated to be of a mechanical nature, mainly reflected in mechanical failures such as: the insulation pull rod falls off, breaks, punctures, the horizontal pull rod breaks the pin, the mechanism is stuck, the contact is bad, and the abrasion, etc. If mechanical faults occur, the transmission efficiency is reduced or the transmission cannot be realized, and abnormal transmission, abrasion of parts and clamping stagnation are often accompanied by sound and vibration different from normal operation. It can be seen that the monitoring of the vibration signal is of great importance for the evaluation of the mechanical properties of the high-voltage switchgear.
At present, vibration monitoring is commonly used in the fields of chemical production, mechanical manufacturing and the like, and under actual working conditions, because high-voltage switch equipment is generally in high-voltage and complex electromagnetic field environments, the difficulty in carrying out work by vibration monitoring work is serious, so that the traditional vibration monitoring is difficult to apply in the field of high-voltage switch equipment monitoring, and the vibration monitoring has great technical difficulties in the field of high-voltage switch equipment monitoring.
Therefore, it is necessary to provide a solution for on-line monitoring of the state of a high voltage switchgear by means of a vibration signal.
Disclosure of Invention
Therefore, it is necessary to provide a vibration monitoring device for a high voltage switchgear, a vibration monitoring system for a high voltage switchgear, a vibration monitoring method for a high voltage switchgear applied to the vibration monitoring system for a high voltage switchgear, and a vibration monitoring apparatus for a high voltage switchgear, which can monitor vibration of a high voltage switchgear.
In a first aspect, the present application provides a high voltage switchgear vibration monitoring device. The apparatus comprises:
the vibration monitoring equipment of the high-voltage switch equipment is characterized by comprising a self-powered module, a vibration signal acquisition module, a processor and a clock circuit module;
the self-power-supply module is a vibration signal acquisition module, the energy supply of a clock circuit module and a processor is realized, the vibration signal acquisition module acquires the vibration signal of external high-voltage switch equipment, the vibration signal is sent to the processor, when the processor detects that the amplitude of the vibration signal exceeds a preset amplitude threshold value, the vibration signal is subjected to analysis processing and analog-to-digital conversion processing in sequence, digital vibration waveform information is obtained, clock circuit signals generated by the clock circuit module at the current time are read, a time tag is added to the digital vibration waveform information based on the clock circuit signals, target vibration waveform information is obtained, the target vibration waveform information is wirelessly sent to an external control terminal, so that the external control terminal carries out fault early warning on the external high-voltage switch equipment according to the target vibration waveform information, wherein the analysis processing comprises at least one of waveform analysis, digital filtering processing and smoothing processing.
In one embodiment, the processor is further configured to calculate a similarity between the target vibration waveform information and preset standard vibration waveform information, obtain a waveform analysis result according to a comparison result between the similarity and a preset similarity threshold, and send the waveform analysis result to the external control terminal.
In one embodiment, the operation modes of the high voltage switching device vibration monitoring device include a low power consumption operation mode and a normal operation mode;
the processor is further used for switching the working mode of the vibration monitoring equipment of the high-voltage switch equipment to a normal working mode when the amplitude of the vibration signal is detected to be larger than a preset amplitude threshold value, timing the running time of the normal working mode, and switching the working mode of the vibration monitoring equipment of the high-voltage switch equipment to a low-power consumption working mode when the preset time is run in the normal working mode.
In one embodiment, the self-powered module includes a solar power mode, a wind power mode, or a micro-energy harvesting self-power mode.
In one embodiment, the high voltage switchgear vibration monitoring device further comprises a data storage module, the data storage module being connected to the processor.
The vibration monitoring equipment of the high-voltage switch equipment can solve the problem of difficult energy supply of the monitoring equipment of the high-voltage switch equipment under the environment of high voltage and complex electromagnetic field through the self-energy supply module, and realizes local self-energy supply, when the processor detects that the amplitude of a vibration signal exceeds a preset amplitude threshold value, the vibration signal is analyzed and processed through analog-to-digital conversion, and digitalized vibration waveform information is obtained, so that the electric quantity can be efficiently saved, the waveform analysis is also completed at a processor end, the vibration signal is converted into a digital signal locally, the data processing amount of an external control terminal is effectively reduced, the efficiency of fault analysis is improved, in addition, the target vibration waveform information with a time label is sent to the external control terminal in a wireless mode, the fault early warning can be realized by the external control terminal, the problems of high difficulty in laying of a data line and limitation of a data collecting place are solved, so that maintenance personnel do not need to reach a control cabinet or a master control room of each high-voltage switch equipment to obtain return signals of the vibration monitoring equipment, and inspection of the state of the high-voltage switch equipment can be conveniently monitored anytime and anywhere to the greatest extent. In conclusion, by adopting the equipment, the technical difficulties of difficult energy supply, large data line laying difficulty and complex data acquisition work of the vibration monitoring of the high-voltage switch equipment are overcome, and the on-line monitoring of the high-voltage switch equipment is realized.
In a second aspect, the present application provides a vibration monitoring system for a high-voltage switchgear, the system comprising the above-mentioned vibration monitoring device for a high-voltage switchgear and a control terminal;
the high-voltage switch equipment vibration monitoring equipment outputs target vibration waveform information to the control terminal, and the control terminal carries out fault early warning on external high-voltage switch equipment according to the target vibration waveform information.
In one embodiment, the control terminal is further configured to generate a vibration curve according to the target vibration waveform information, analyze and process the vibration waveform information according to an envelope curve method to obtain a vibration amplitude envelope curve of the external high-voltage switching device, and perform fault early warning on the external high-voltage switching device based on the vibration amplitude envelope curve and the vibration curve.
In one embodiment, the control terminal is further configured to locate an abnormal data point according to the vibration curve and the vibration amplitude envelope curve, extract a time tag of the abnormal data point, and determine the fault type and the fault cause of the external high-voltage switchgear according to the time tag of the abnormal data point and a preset fault analysis model, where the preset fault analysis model is constructed based on physical mechanism data and historical fault analysis data of the external high-voltage switchgear.
According to the vibration monitoring system of the high-voltage switch equipment, the problem of difficulty in energy supply of the high-voltage switch equipment monitoring equipment in a high-voltage and complex electromagnetic field environment is solved through the self-energy supply module, local self-energy supply is achieved, the processor analyzes and converts vibration signals into digital signals on site when detecting that the amplitude of the vibration signals exceeds a preset amplitude threshold value, digitalized vibration waveform information is obtained, not only can electric quantity be efficiently saved, but also waveform analysis is completed at the processor end, the vibration signals are converted into the digital signals on site, the data processing amount of a control terminal is effectively reduced, the efficiency of fault analysis is improved, the target vibration waveform information with time labels is sent to the control terminal in a wireless mode, the problems that the data wire laying difficulty is large and the data collection place is limited are solved, a maintainer does not need to reach a collection cabinet or a patrol inspection room of each high-voltage switch equipment to obtain return signals of the vibration monitoring equipment, and the condition of the high-voltage switch equipment can be conveniently monitored anytime and anywhere to the utmost extent. In conclusion, by adopting the system, the technical difficulties of difficult energy supply, high data line laying difficulty and complex data acquisition work of the vibration monitoring of the high-voltage switch equipment are overcome through the cooperative matching of the high-voltage switch equipment monitoring equipment and the control terminal, and the online monitoring of the high-voltage switch equipment is realized.
In a third aspect, the present application provides a high voltage switchgear vibration monitoring method applying the above high voltage switchgear vibration monitoring system. The method comprises the following steps:
acquiring target vibration waveform information;
generating a vibration curve according to the target vibration waveform information;
analyzing and processing the target vibration waveform information according to an envelope curve method to obtain a vibration amplitude envelope curve of external high-voltage switch equipment;
positioning an abnormal data point based on the vibration curve and the vibration amplitude envelope curve;
and extracting the time labels according to the abnormal data points, determining the fault type and fault reason of the external high-voltage switch equipment according to the time labels of the abnormal data points and a preset fault analysis model, wherein the preset fault analysis model is constructed based on physical mechanism data and historical fault analysis data of the external high-voltage switch equipment.
In a fourth aspect, the present application provides a high voltage switchgear vibration monitoring device for use in the above-mentioned high voltage switchgear vibration monitoring system. The device comprises:
the data acquisition module is used for acquiring target vibration waveform information;
the vibration curve generation module is used for generating a vibration curve according to the target vibration waveform information;
the vibration amplitude envelope line generation module is used for analyzing and processing target vibration waveform information according to an envelope line method to obtain a vibration amplitude envelope line of external high-voltage switch equipment;
the abnormal data point positioning module is used for positioning abnormal data points based on the vibration curve and the vibration amplitude envelope curve;
and the fault analysis module is used for extracting the time labels according to the abnormal data points, determining the fault type and fault reason of the external high-voltage switch equipment according to the time labels of the abnormal data points and a preset fault analysis model, and the preset fault analysis model is constructed based on the physical mechanism data and historical fault analysis data of the external high-voltage switch equipment.
The method and the device for monitoring the vibration of the high-voltage switchgear are applied to the vibration monitoring system of the high-voltage switchgear, and firstly, the dimension of data acquisition can accurately acquire target vibration waveform information representing an online monitoring result of the high-voltage switchgear; secondly, in a data processing dimension, a fault analysis model is constructed in advance through physical mechanism data and historical fault analysis data of external high-voltage switch equipment, after target vibration waveform information sent by vibration monitoring equipment of the high-voltage switch equipment is obtained, a vibration curve is generated, the target vibration waveform information is analyzed and processed according to an envelope curve method, a vibration amplitude envelope curve of the external high-voltage switch equipment is obtained, then abnormal data points are located based on the vibration curve and the vibration amplitude envelope curve, time labels according to the abnormal data points are extracted, and fault types and fault reasons of the external high-voltage switch equipment are determined according to the time labels of the abnormal data points and a preset fault analysis model.
Drawings
FIG. 1 is a block diagram of a vibration monitoring device of a high voltage switchgear in one embodiment;
FIG. 2 is a block diagram of a vibration monitoring device for a high voltage switchgear in another embodiment;
FIG. 3 is a block diagram of a vibration monitoring device for a high voltage switchgear in yet another embodiment;
FIG. 4 is a detailed block diagram of the vibration monitoring device of the high voltage switchgear in one embodiment;
FIG. 5 is a block diagram of a system architecture for a vibration monitoring system for a high voltage switchgear in one embodiment;
FIG. 6 is a diagram of an embodiment of a high voltage switchgear vibration monitoring system;
FIG. 7 is a schematic flow diagram of a vibration monitoring method for a high voltage switchgear in another embodiment;
fig. 8 is a block diagram of a vibration monitoring device of a high voltage switchgear in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, there is provided a high voltage switchgear vibration monitoring device (hereinafter referred to as device), comprising: a self-powered module 102102, a vibration signal acquisition module 104, a clock circuit module 108, and a processor 106;
the self-powered module 102 is used for supplying power to the vibration signal acquisition module 104, the filtering conditioning circuit module, the clock circuit module 108 and the processor 106, the vibration signal acquisition module 104 acquires vibration signals of external high-voltage switch equipment, the vibration signals are sent to the processor 106, when the processor 106 detects that the amplitude of the vibration signals exceeds a preset amplitude threshold value, the vibration signals are sequentially analyzed and subjected to analog-to-digital conversion processing to obtain digitalized vibration waveform information, clock circuit signals generated by the clock circuit module 108 at the current time are read, a time tag is added to the digitalized vibration waveform information based on the clock circuit signals to obtain target vibration waveform information, and the target vibration waveform information is sent to an external control terminal so that the external control terminal can perform fault early warning on the external high-voltage switch equipment according to the target vibration waveform information, wherein the analysis processing comprises at least one of waveform analysis, digital filtering processing and smoothing processing.
Because of the long-term maintenance-free characteristic of the high-voltage switch, the sensor attached to the monitoring main equipment needs to also ensure long-term autonomous operation, and most vibration acquisition modules do not have self-generating capacity like the vibration sensor, so that the self-powered module 102 is designed in the embodiment. The self-powered module 102 may be connected to all modules within the device to provide operating power to each module. In another embodiment, the self-powered module 102 may also be coupled to the processor 106 to provide operating power indirectly to the module coupled to the processor 106. In particular, the self-powered module 102, in addition to providing operating power to each module, also stores the generated surplus power in the battery of the vibration collection module, so as to continue to maintain the operation of the vibration collection module when the power supply mode is stopped.
The vibration signal collection module 104 may be a vibration sensor that continuously collects vibration signals of the high voltage switchgear and sends the collected vibration signals to the processor 106. The processor 106 may be an STM32 chip. It is understood that the vibration signal acquired by the vibration sensor is an acoustic analog signal, and the vibration signal can represent the state of the high-voltage switchgear, and the state of the high-voltage switchgear can be obtained by analyzing the vibration signal. After receiving the vibration signal, the processor 106 compares the amplitude of the vibration signal with a preset amplitude threshold, and since the vibration signal is obviously enhanced when the high-voltage switchgear operates, it can be determined whether the high-voltage switchgear operates according to the amplitude of the vibration signal, and if the amplitude of the vibration signal is greater than or equal to the preset amplitude threshold, it indicates that the high-voltage switchgear operates, at this time, the processor starts analysis processing, and performs edge calculation and analog-to-digital conversion processing on the vibration signal in sequence, specifically, the edge calculation includes at least one of waveform analysis, digital filtering processing, and smoothing processing. In this embodiment, the waveform analysis, the digital filtering process, the smoothing process, and the analog-to-digital conversion process may be performed in sequence to obtain digitized vibration waveform data, and meanwhile, when the high voltage switch device operates, a clock circuit signal generated by the clock circuit module 108 at the current time is read, then a time tag is added to the digitized vibration waveform information based on the clock circuit signal to obtain target vibration waveform information, and the target vibration waveform information is sent to the external control terminal in a wireless manner, so that the external control terminal performs fault early warning on the external high voltage switch device according to the target vibration waveform information. In this embodiment, the digital filtering process may be digital filtering with a finite-length impulse response filter or an infinite-length impulse response filter, and then smoothing the signal after the digital filtering to remove the glitch. It is to be understood that, in order to ensure the validity of the signal, processing means other than digital filtering and smoothing processing may be adopted, and is not limited herein.
The vibration monitoring equipment for the high-voltage switch equipment can solve the problem of difficult energy supply of the monitoring equipment for the high-voltage switch equipment under the environment of high voltage and complex electromagnetic field through the self-energy supply module, realizes local self-energy supply, and the processor analyzes and converts the vibration signal into digital signal when detecting that the amplitude of the vibration signal exceeds the preset amplitude threshold value, thereby obtaining digitalized vibration waveform information. In conclusion, by adopting the equipment, the technical difficulties of difficult energy supply, large data line laying difficulty and complex data acquisition work of the vibration monitoring of the high-voltage switch equipment are overcome, and the on-line monitoring of the high-voltage switch equipment is realized.
In one embodiment, self-powered module 102 includes a solar power mode, a wind power mode, or a micro-energy harvesting self-power mode.
In this embodiment, the self-powered module 102 may provide a plurality of selection modes according to actual situations, which is not limited herein. The method specifically comprises the following steps: if the equipment is far away from the secondary equipment power supply and has no requirement on external insulation, solar power generation and wind power supply can be adopted; micro energy collection can be adopted for places with requirements on the insulation appearance, such as the interior of a switch, such as temperature difference power generation; and the method can also adopt micro vibration energy collection, electromagnetic induction-based coil energy taking, a nano generator, power frequency electric field induction energy collection, weak power frequency magnetic field energy collection and the like. It is understood that the self-powered module 102 in this embodiment may also be a module that can provide multiple power generation modes. During specific implementation, different power generation modes (such as solar energy, wind energy, temperature difference, micro vibration energy collection, electromagnetic induction and the like) can be adopted according to different working conditions of the installation position to ensure that electric energy is stored in a battery of the whole monitoring equipment, and a working power supply is provided for each circuit.
As shown in fig. 2, in an embodiment, the apparatus further includes a filtering and conditioning circuit module, where the filtering and conditioning circuit module is connected to the processor 106 through the vibration signal acquisition module 104, and is configured to filter the vibration signal acquired by the vibration signal acquisition module 104, and then send the filtered vibration signal to the processor 106. In specific implementation, the hardware filtering process may be performed by a pi-type circuit. In the embodiment, the vibration signal is filtered through the filtering conditioning circuit module, so that interference can be suppressed, and noise and false components of the vibration signal are reduced.
As shown in fig. 3, in one embodiment, the device further comprises a data storage module 107, the data storage module 107 being connected to the processor 106.
In specific implementation, after obtaining the target vibration waveform information and the waveform analysis result, the processor 106 sends the target vibration waveform information and the waveform analysis result to the data storage module 107 for storage, and when receiving an information query code sent by an external control terminal and used for querying the working state, the internal parameters and the stored waveform information of the device, the processor 106 reads corresponding query result data from the data storage module 107 and sends the corresponding query result data to the external control terminal. In another embodiment, the query result data may also be sent to the external control terminal periodically. In the embodiment, the equipment provides a historical data query function, so that a maintainer can conveniently query historical operation data at any time and any place, and data support is provided for transformer substation fault analysis. The technology can effectively improve the state maintenance level of the high-voltage switch equipment and reduce the loss caused by equipment failure.
As shown in fig. 4, in one embodiment, the device further includes a serial communication module 111 and an electromagnetic Compatibility EMC (Electro Magnetic Compatibility) circuit module (hereinafter referred to as EMC module 109), the serial communication module 111 and a wireless communication module 110, the serial communication module 111 is connected to the processor 106 through the EMC module 109, and the wireless communication module 110 is connected to the processor 106.
In specific implementation, the serial port communication Module 111 is connected to the control terminal, so that the working parameters of the device can be set, and then a matched SIM (Subscriber Identity Module) card can be installed, and data can also be transmitted to the device. Specifically, different amplitude threshold values, normal operation mode running time and single recording time can be set according to the characteristics of action time, vibration amplitude, frequency and the like of specific high-voltage switch equipment, so that the operation waveform can be completely recorded, and the influence of interference signals is reduced. By means of the EMC module 109, the entire device can be made to operate satisfactorily in its electromagnetic environment without the ability to generate intolerable electromagnetic interference for any device in its environment.
Specifically, the Wireless communication module 110 may be a 4G/5G communication module, a WiFi (Wireless Fidelity) module, and a bluetooth module, and when the processor 106 controls the device to switch from the normal operating mode to the low power consumption operating mode, the target vibration waveform information and the waveform analysis result may be wirelessly transmitted to a designated external control terminal through the 4G/5G communication module. Namely, after the high-voltage switch equipment completes one operation, the target vibration waveform information and the waveform analysis result are automatically sent to the designated external control terminal through the 4G/5G communication module. And after receiving the target vibration waveform information and the waveform analysis result, the external control terminal carries out reduction analysis processing on the received information, displays the analysis result and carries out fault alarm.
In one embodiment, the processor 106 is further configured to calculate a similarity between the target vibration waveform information and preset standard vibration waveform information, obtain a waveform analysis result according to a comparison result between the similarity and a preset similarity threshold, and send the waveform analysis result to the external control terminal.
In specific implementation, the standard vibration waveform of the high-voltage switch equipment can be pre-stored in the equipment, after the target vibration waveform information is obtained, the similarity between the target vibration waveform information and the standard vibration waveform information can be calculated, if the similarity is greater than or equal to a preset similarity threshold value, the waveform analysis result is judged to be normal, and if the similarity is less than the preset similarity threshold value, the waveform analysis result is judged to be abnormal. Then, the waveform analysis result is transmitted to an external control terminal. In this embodiment, the standard vibration waveform information may be stored in the device through the serial port communication module 111.
In one embodiment, the operating modes of the device include a low power consumption operating mode and a normal operating mode; the device is powered on and started to operate in a low-power-consumption working mode, the processor is further used for switching the working mode of the vibration monitoring device of the high-voltage switch device to a normal working mode when the amplitude of the vibration signal is detected to be larger than a preset amplitude threshold value, timing the operation duration of the normal working mode, and switching the working mode of the vibration monitoring device of the high-voltage switch device to the low-power-consumption working mode when the preset duration is operated in the normal working mode.
In this embodiment, the device is operated in the low power consumption operating mode by default, that is, the device is operated in the low power consumption operating mode under the condition that the high voltage switch device is not operated, and the low power consumption state is maintained, at this time, the processor 106 receives the vibration signal, only compares the amplitude of the vibration signal, does not perform data analysis processing and storage, reduces the internal power consumption, and prolongs the service life of the components such as the processor 106 chip. When the amplitude of the vibration signal exceeds a preset amplitude threshold value, namely the acceleration of the vibration signal exceeds a specified threshold value, the processor 106 controls the equipment to enter a normal working mode, timing is started, and after data acquisition, storage and receiving and sending of the data within a specified time length (the time length is configured automatically) are completed, the processor 106 controls the equipment to automatically enter a low-power-consumption working mode, so that the battery maintenance time can be effectively prolonged.
For clarity of the description of the monitoring device for a high-voltage switchgear, the following description is given with reference to a specific embodiment and fig. 4:
the high-voltage switch equipment vibration monitoring equipment comprises a self-power supply module 102, a vibration signal acquisition module 104, a filtering conditioning module 105, a processor 106, a data storage module 107, a clock circuit module 108, an EMC module 109, a wireless communication module 110 and a serial communication module 111;
before the equipment is installed in the high-voltage switch operating mechanism box, the equipment is connected with an external control terminal through a serial port communication module 111, working parameters of the equipment are set (mainly comprising an amplitude threshold value, a sampling rate, single recording time, normal working mode running time and the like), standard vibration waveforms are input into the equipment, and then a matched SIM card is installed. After the equipment is installed, the equipment is in a low power consumption state, the self-power supply module 102 supplies power to each module in the equipment, the vibration signal acquisition module 104 acquires vibration signals of external high-voltage switch equipment, the vibration signals are sent to the filtering conditioning module 105 for filtering, the filtering conditioning module 105 sends the vibration signals after filtering to the processor 106, when the processor 106 detects that the amplitude of the vibration signals exceeds a preset amplitude threshold value, the control equipment enters a normal working mode, timing is started, waveform analysis, digital filtering processing, smoothing processing and analog-to-digital conversion processing are sequentially carried out on the vibration signals, digitized vibration waveform information is obtained, a clock circuit signal generated by the clock circuit module 108 at the current time is read, a time tag is added to the digitized vibration waveform information based on the clock circuit signal, target vibration waveform information is obtained, the target vibration waveform information and a waveform analysis result are stored to the data storage module 107, after the equipment runs in the normal working mode, the processor 106 controls the equipment to enter the low power consumption working mode, the target vibration waveform information is automatically sent to an external control terminal through the wireless communication module 110, and the external control terminal carries out early warning on the fault of the external high-voltage switch equipment according to the target vibration waveform information.
As shown in fig. 5, in one embodiment, there is provided a high voltage switchgear vibration monitoring system comprising a high voltage switchgear vibration monitoring device 202 and a control terminal 204 as described in the previous embodiments;
the high-voltage switch equipment vibration monitoring equipment 202 outputs target vibration waveform information to the control terminal, and the control terminal 204 carries out fault early warning on external high-voltage switch equipment according to the target vibration waveform information.
According to the vibration monitoring system of the high-voltage switch equipment, the problem of difficulty in energy supply of the high-voltage switch equipment monitoring equipment under the environment of high voltage and a complex electromagnetic field is solved through the self-energy supply module, local self-energy supply is realized, the processor analyzes and processes the vibration signal and converts the vibration signal into an analog-to-digital conversion when detecting that the amplitude of the vibration signal exceeds a preset amplitude threshold value, digital vibration waveform information is obtained, not only can the electric quantity be efficiently saved, but also waveform analysis is completed at the processor end, the vibration signal is converted into a digital signal on site, local edge calculation is realized, the data processing quantity of the control terminal is effectively reduced, the efficiency of fault analysis is improved, in addition, the target vibration waveform information carrying a time label is sent to the control terminal in a wireless mode, the problems of high difficulty in laying of a data line and limitation of a data collecting place are solved, a maintainer does not need to reach a control cabinet or a master control room of the high-voltage switch equipment to obtain a return signal of the vibration monitoring equipment, and inspection of the maintainer can be convenient for monitoring the equipment state at any time and any place to the utmost. In conclusion, by adopting the system, the technical difficulties of difficult energy supply, high data line laying difficulty and complex data acquisition work of the vibration monitoring of the high-voltage switch equipment are overcome through the cooperative matching of the high-voltage switch equipment monitoring equipment and the control terminal, and the online monitoring of the high-voltage switch equipment is realized.
In one embodiment, the control terminal 204 is further configured to generate a vibration curve according to the target vibration waveform information, analyze and process the vibration waveform information according to an envelope curve method to obtain a vibration amplitude envelope curve of the external high-voltage switching device, and perform fault early warning on the external high-voltage switching device based on the vibration amplitude envelope curve and the vibration curve.
A three-axis vibration sensor is generally installed on the high-voltage switch equipment, and the collected vibration information respectively generates coordinate axes of acceleration and time according to a X, Y, Z axis. In specific implementation, after the control terminal receives the target vibration waveform information, a vibration curve can be directly generated, and then the vibration curve is displayed, wherein the vibration curve comprises time points and specific values of the maximum acceleration of each axis. Furthermore, each high-voltage switch device has a unique vibration curve, the vibration curve can be simulated and deduced through multiple tests, device self-learning and other modes, and a vibration amplitude envelope curve of the high-voltage switch device is generated. And then, analyzing whether the external high-voltage switch equipment is abnormal or fails or not based on the vibration amplitude envelope curve and the vibration curve, and if the external high-voltage switch equipment is abnormal, further determining the abnormal reason so that a maintainer can solve the problem in time. In this embodiment, through envelope generation vibration amplitude envelope, can fix a position unusual time point fast, and can supply maintainer directly perceived discovery unusual point, further contrast the location of unusual point whether have the mistake.
In one embodiment, the control terminal 204 is further configured to locate an abnormal data point according to the vibration curve and the vibration amplitude envelope curve, extract a time tag of the abnormal data point, and determine the fault type and fault cause of the external high voltage switchgear according to the time tag of the abnormal data point and a preset fault analysis model, where the preset fault analysis model is constructed based on physical mechanism data and historical fault analysis data of the external high voltage switchgear.
In specific implementation, a maintainer can analyze a large amount of historical fault analysis data of the high-voltage switch equipment by combining physical mechanism data of external high-voltage switch equipment, and a fault analysis model is constructed and comprises a mapping relation between a fault occurrence time point and a fault reason and a fault type. And then, according to the vibration curve and the vibration amplitude envelope curve, positioning an abnormal data point, extracting a time label of the abnormal data point, and according to the time label of the abnormal data point, finding out a corresponding fault type and a fault reason from a preset fault analysis model so as to determine the fault type and the fault reason of the external high-voltage switch equipment. For example, if the amplitude of the vibration signal of the high-voltage switchgear is found to exceed the normal range of the normal amplitude and the vibration amplitude envelope curve from the 5 th second through the time tag of the abnormal data point, the fault type is found to be a mechanical fault from the fault analysis model according to the time tag, and the fault reason is, for example, the insulation pull rod falls off. If the abnormality occurs from 8 seconds, the fault type is a mechanical fault, and the fault reason is breakdown of the insulation pull rod. It is to be understood that the above description is intended to be illustrative only. In the embodiment, the fault type and the fault reason can be quickly positioned through the pre-constructed fault analysis model, so that a maintainer can intuitively know the problem and correspondingly take a solution.
In one embodiment, a high voltage switchgear vibration monitoring method of the above high voltage switchgear vibration monitoring system is also provided, which may be applied in an application environment as shown in fig. 6. The high-voltage switchgear monitoring device 202 communicates with the control terminal 204 via a network or bluetooth. Specifically, the high-voltage switchgear monitoring device 202 sends target vibration waveform information to the control terminal 204, the control terminal 204 generates a vibration curve according to the target vibration waveform information, analyzes and processes the target vibration waveform information according to an envelope curve method to obtain a vibration amplitude envelope curve of the external high-voltage switchgear, locates abnormal data points based on the vibration curve and the vibration amplitude envelope curve, extracts time labels according to the abnormal data points, determines fault types and fault reasons of the external high-voltage switchgear according to the time labels of the abnormal data points and a preset fault analysis model, and the preset fault analysis model is constructed based on physical mechanism data and historical fault analysis data of the external high-voltage switchgear. The control terminal 202 may be but not limited to various personal computers, notebook computers, smart phones, tablet computers, internet of things devices and portable wearable devices, and the internet of things devices may be smart speakers, smart televisions, smart air conditioners, smart car-mounted devices, and the like. The portable wearable device can be a smart watch, a smart bracelet, a head-mounted device, and the like.
In one embodiment, as shown in fig. 7, a vibration monitoring method for a high voltage switchgear of a vibration monitoring system for a high voltage switchgear is provided, which is described by taking the method as an example applied to the control terminal in fig. 6, and includes the following steps:
and step 100, acquiring target vibration waveform information.
And 200, generating a vibration curve according to the target vibration waveform information.
And 300, analyzing and processing the target vibration waveform information according to an envelope curve method to obtain a vibration amplitude envelope curve of the external high-voltage switch equipment.
And step 400, positioning abnormal data points based on the vibration curve and the vibration amplitude envelope curve.
And 500, extracting the time labels according to the abnormal data points, and determining the fault type and fault reason of the external high-voltage switch equipment according to the time labels of the abnormal data points and a preset fault analysis model, wherein the preset fault analysis model is constructed based on physical mechanism data and historical fault analysis data of the external high-voltage switch equipment.
In practical application, a maintainer analyzes a large amount of historical fault analysis data of the high-voltage switchgear by combining physical mechanism data of external high-voltage switchgear, and constructs a fault analysis model, wherein the fault analysis model comprises a mapping relation between a fault occurrence time point and a fault reason and a fault type. In specific implementation, after the control terminal receives the target vibration waveform information, a vibration curve can be directly generated and displayed, and then the vibration waveform information is analyzed and processed by adopting an envelope curve method to generate a vibration amplitude envelope curve. And then, based on the vibration amplitude envelope curve and the vibration curve, positioning an abnormal data point according to the vibration curve and the vibration amplitude envelope curve, extracting a time label of the abnormal data point, and finding out a corresponding fault type and a fault reason from a preset fault analysis model according to the time label of the abnormal data point so as to determine the fault type and the fault reason of the external high-voltage switch equipment. For example, if the amplitude of the vibration signal of the high-voltage switchgear is found to exceed the normal range of the normal amplitude and the vibration amplitude envelope curve from the 5 th second through the time tag of the abnormal data point, the fault type is found to be a mechanical fault from the fault analysis model according to the time tag, and the fault reason is, for example, the insulation pull rod falls off. If the abnormality occurs from 8 seconds, the fault type is a mechanical fault, and the fault reason is breakdown of the insulation pull rod.
The high-voltage switchgear vibration monitoring method is applied to the high-voltage switchgear vibration monitoring system, and firstly, in the data acquisition dimension, the target vibration waveform information representing the online monitoring result of the high-voltage switchgear can be accurately acquired; secondly, in a data processing dimension, a fault analysis model is constructed in advance through physical mechanism data and historical fault analysis data of external high-voltage switch equipment, after target vibration waveform information sent by vibration monitoring equipment of the high-voltage switch equipment is obtained, a vibration curve is generated, the target vibration waveform information is analyzed and processed according to an envelope curve method, a vibration amplitude envelope curve of the external high-voltage switch equipment is obtained, then abnormal data points are located based on the vibration curve and the vibration amplitude envelope curve, time labels according to the abnormal data points are extracted, and fault types and fault reasons of the external high-voltage switch equipment are determined according to the time labels of the abnormal data points and a preset fault analysis model.
It should be understood that, although the steps in the flowcharts related to the embodiments as described above are sequentially displayed as indicated by arrows, the steps are not necessarily performed sequentially as indicated by the arrows. The steps are not performed in the exact order shown and described, unless explicitly stated otherwise, and may be performed in other orders. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
Based on the same inventive concept, the embodiment of the application also provides a high-voltage switchgear vibration monitoring device of the high-voltage switchgear vibration monitoring system, which is used for realizing the high-voltage switchgear vibration monitoring method of the high-voltage switchgear vibration monitoring system. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so specific limitations in the embodiments of one or more high-voltage switchgear vibration monitoring devices of the high-voltage switchgear vibration monitoring system provided below can be referred to the limitations on the high-voltage switchgear vibration monitoring method of the high-voltage switchgear vibration monitoring system, and are not described herein again.
In one embodiment, as shown in fig. 8, there is provided a high voltage switchgear vibration monitoring device applied to the above high voltage switchgear vibration monitoring system, comprising: a data acquisition module 810, a vibration curve generation module 820, a vibration amplitude envelope generation module 830, an abnormal data point location module 840, and a fault analysis module 850, wherein:
and a data obtaining module 810, configured to obtain target vibration waveform information.
And a vibration curve generating module 820, configured to generate a vibration curve according to the target vibration waveform information.
And the vibration amplitude envelope generation module 830 is configured to analyze and process the target vibration waveform information according to an envelope method to obtain a vibration amplitude envelope of the external high-voltage switching device.
An abnormal data point location module 840 for locating an abnormal data point based on the vibration curve and the vibration amplitude envelope.
And the fault analysis module 850 is configured to extract a time tag according to the abnormal data point, determine a fault type and a fault cause of the external high-voltage switchgear according to the time tag of the abnormal data point and a preset fault analysis model, where the preset fault analysis model is constructed based on physical mechanism data and historical fault analysis data of the external high-voltage switchgear.
All or part of each module in the vibration monitoring device of the high-voltage switchgear can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned high-voltage switchgear vibration monitoring method.
In an embodiment, a computer program product is provided, comprising a computer program which, when being executed by a processor, carries out the steps of the above-mentioned high voltage switchgear vibration monitoring method.
It should be noted that, the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high-density embedded nonvolatile Memory, resistive Random Access Memory (ReRAM), magnetic Random Access Memory (MRAM), ferroelectric Random Access Memory (FRAM), phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others. The databases referred to in various embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the various embodiments provided herein may be, without limitation, general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, or the like.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. The vibration monitoring equipment of the high-voltage switch equipment is characterized by comprising a self-powered module, a vibration signal acquisition module, a clock circuit module and a processor;
the self-energy-supply module does vibration signal acquisition module clock circuit module with the treater energy supply, vibration signal acquisition module gathers outside high tension switchgear's vibration signal, will vibration signal sends to the treater, the treater detects when vibration signal's amplitude surpasses and predetermines the amplitude threshold value, it is right vibration signal carries out analysis processes and analog-to-digital conversion in proper order and handles, obtains digital vibration waveform information, and reads the current time clock circuit signal that clock circuit module generated, based on clock circuit signal adds the time tag extremely digital vibration waveform information obtains target vibration waveform information, will target vibration waveform information wireless transmission to external control terminal to make external control terminal basis target vibration waveform information is right outside high tension switchgear carries out the fault early warning, wherein, analysis processes includes waveform analysis, digital filtering and smooth processing's at least one.
2. The high-voltage switchgear vibration monitoring device according to claim 1, wherein the processor is further configured to calculate a similarity between the target vibration waveform information and preset standard vibration waveform information, obtain a waveform analysis result according to a comparison result between the similarity and a preset similarity threshold, and send the waveform analysis result to the external control terminal.
3. The high voltage switchgear vibration monitoring device according to claim 1, characterized in that the operation modes of the high voltage switchgear vibration monitoring device comprise a low power consumption operation mode and a normal operation mode;
the high-voltage switch equipment vibration monitoring equipment is electrified to be started to operate in the low-power-consumption working mode, the processor is further used for switching the working mode of the high-voltage switch equipment vibration monitoring equipment to a normal working mode when the amplitude of the vibration signal is detected to be larger than a preset amplitude threshold value, timing the running time of the normal working mode, and switching the working mode of the high-voltage switch equipment vibration monitoring equipment to be in the low-power-consumption working mode when the preset time is operated in the normal working mode.
4. A high voltage switchgear vibration monitoring device according to any of claims 1-3, characterized in that the self powered module comprises a solar power mode, a wind power mode or a micro power harvesting self power mode.
5. A high voltage switchgear vibration monitoring device according to any of claims 1-3, characterized in that the device further comprises a data storage module, which is connected to the processor.
6. The high voltage switchgear vibration monitoring device of any of claims 1 to 3, further comprising a filtering conditioning module connected to the processor through the vibration signal acquisition module.
7. A high voltage switchgear vibration monitoring system, characterized in that the system comprises a high voltage switchgear vibration monitoring device according to any of claims 1-6 and a control terminal;
the high-voltage switch equipment vibration monitoring equipment outputs target vibration waveform information to the control terminal, and the control terminal carries out fault early warning on external high-voltage switch equipment according to the target vibration waveform information.
8. The vibration monitoring system of high-voltage switch equipment according to claim 7, wherein the control terminal is further configured to generate a vibration curve according to the target vibration waveform information, analyze and process the target vibration waveform information according to an envelope curve method to obtain a vibration amplitude envelope curve of external high-voltage switch equipment, and perform fault early warning on the external high-voltage switch equipment based on the vibration amplitude envelope curve and the vibration curve.
9. The vibration monitoring system for the high-voltage switchgear according to claim 7, wherein the control terminal is further configured to locate an abnormal data point according to the vibration curve and the vibration amplitude envelope curve, extract a time tag of the abnormal data point, and determine a fault type and a fault cause of the external high-voltage switchgear according to the time tag of the abnormal data point and a preset fault analysis model, wherein the preset fault analysis model is constructed based on physical mechanism data and historical fault analysis data of the external high-voltage switchgear.
10. A high voltage switchgear vibration monitoring method, applied to a high voltage switchgear vibration monitoring system according to any one of claims 7 to 9, comprising:
acquiring target vibration waveform information;
generating a vibration curve according to the target vibration waveform information;
analyzing and processing the target vibration waveform information according to an envelope curve method to obtain a vibration amplitude envelope curve of external high-voltage switch equipment;
locating an abnormal data point based on the vibration curve and the vibration amplitude envelope curve;
and extracting the time label according to the abnormal data point, and determining the fault type and fault reason of the external high-voltage switch equipment according to the time label of the abnormal data point and a preset fault analysis model, wherein the preset fault analysis model is constructed based on physical mechanism data and historical fault analysis data of the external high-voltage switch equipment.
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