CN114152827A - Operation monitoring method, system and device of high-voltage power distribution cabinet and storage medium - Google Patents
Operation monitoring method, system and device of high-voltage power distribution cabinet and storage medium Download PDFInfo
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- CN114152827A CN114152827A CN202111415636.9A CN202111415636A CN114152827A CN 114152827 A CN114152827 A CN 114152827A CN 202111415636 A CN202111415636 A CN 202111415636A CN 114152827 A CN114152827 A CN 114152827A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The application relates to the field of high-voltage power distribution cabinets, in particular to a method, a system, a device and a storage medium for monitoring the operation of a high-voltage power distribution cabinet, wherein the method comprises the steps of presetting a first current threshold and a second current threshold, and the second current threshold is smaller than the first current threshold; collecting ultrasonic signals inside the power distribution cabinet during operation, and converting the ultrasonic signals into current data; data comparison, namely comparing the current data with a first current threshold, if the current data is greater than or equal to the first current threshold, judging that a stronger partial discharge condition exists in the power distribution cabinet, and sending a primary early warning signal to give an alarm; if the current data is smaller than the first current threshold, comparing the current data with a second current threshold, and if the current data is larger than or equal to the second current threshold, indicating that a weak partial discharge condition exists in the power distribution cabinet. The power distribution cabinet monitoring method and the power distribution cabinet monitoring system have the effect that the power distribution cabinet can be monitored when the power distribution cabinet runs.
Description
Technical Field
The present application relates to the field of high voltage power distribution cabinets, and in particular, to a method, a system, a device, and a storage medium for monitoring operation of a high voltage power distribution cabinet.
Background
The high-voltage power distribution cabinet is a common electrical product in an electric power system and is an important link for ensuring normal operation of a power grid, the high-voltage power distribution cabinet is generally a metal cabinet body, a circuit breaker, a current transformer, a voltage transformer, an isolating switch, an operating mechanism, various protection devices and the like are packaged in the metal cabinet body, and the high-voltage power distribution cabinet is mainly applied to the aspects of power generation, power transmission, power distribution, electric energy conversion and the like.
In the related art, because the number of components in the high-voltage distribution cabinet is large, in the environment of high-voltage operation, the condition of insulation fault easily appears, and then partial discharge phenomenon appears, if not in time troubleshooting, various insulation faults of high-voltage switch cabinet finally cause breakdown, and then dangerous accidents such as explosion are caused. In order to reduce the occurrence of accidents, the staff can regularly patrol the power distribution cabinet in the high-voltage power distribution room.
In view of the above-mentioned related technologies, the inventor believes that there is a drawback that, during manual inspection, a power failure operation needs to be performed on a power distribution cabinet, which adversely affects a power consumer.
Disclosure of Invention
In order to obtain the partial discharge condition of the power distribution cabinet during operation of the power distribution cabinet, the application provides an operation monitoring method, system, device and storage medium of a high-voltage power distribution cabinet.
The application provides an operation monitoring method of a high-voltage power distribution cabinet, which adopts the following technical scheme:
a method for monitoring the operation of a high-voltage power distribution cabinet presets a first current threshold and a second current threshold, wherein the second current threshold is smaller than the first current threshold;
collecting ultrasonic signals inside the power distribution cabinet during operation, and converting the ultrasonic signals into current data;
data comparison, namely comparing the current data with a first current threshold, if the current data is greater than or equal to the first current threshold, judging that a stronger partial discharge condition exists in the power distribution cabinet, and sending a primary early warning signal to give an alarm;
if the current data is smaller than the first current threshold, comparing the current data with a second current threshold, and if the current data is larger than or equal to the second current threshold, indicating that a weak partial discharge condition exists in the power distribution cabinet, and sending a secondary early warning signal to give an alarm;
and if the current data is smaller than the second current threshold, judging that the partial discharge condition does not occur in the power distribution cabinet at the moment.
Through adopting above-mentioned technical scheme, when the condition that appears partial discharge in the switch board, can produce ultrasonic signal, and ultrasonic signal's power and partial discharge's ability size is directly proportional, gather the inside ultrasonic signal when the switch board moves, make ultrasonic signal turn into current data, judge ultrasonic signal's power through the size of judging the electric current, in order to realize when the switch board moves, whether take place the partial discharge phenomenon in the real time monitoring switch board, reduce because the maintenance and have a power failure to the adverse effect that the consumer produced.
Preferably, the power distribution cabinets are numbered, and in the data comparison step, if the power distribution cabinets are judged to have weak partial discharge conditions, the numbers of the power distribution cabinets are positioned and sent out; and if the situation that the power distribution cabinet has stronger partial discharge is judged, positioning the serial number of the power distribution cabinet and sending the serial number.
By adopting the technical scheme, the corresponding fault position can be conveniently and quickly found by the working personnel, and the rush repair time and cost are reduced.
Preferably, in the data comparison step, if it is determined that a stronger partial discharge condition exists in the power distribution cabinet, the power supply shutdown operation is automatically performed on the power distribution cabinet with the stronger partial discharge condition.
Through adopting above-mentioned technical scheme, carry out the power supply to the switch board that has the stronger partial discharge condition automatically and cut off the operation, in the prophase that the partial discharge phenomenon takes place, make the timely outage of switch board, be favorable to protecting the equipment in the switch board, reduce the possibility that the accident took place.
Preferably, the current signal is an average value of the current in the T period.
By adopting the technical scheme, the current average value in the T period is taken as the current signal, so that the detection result is more accurate.
Preferably, in the data comparison step, when the current data is greater than or equal to the second current threshold, a continuous waveform diagram of the time and the current average value is generated and output, so that a worker can obtain the partial discharge condition in the power distribution cabinet.
By adopting the technical scheme, the worker can know the partial discharge condition in the power distribution cabinet by looking up the continuous oscillogram of the time and the current average value.
Preferably, in the data comparison step, the difference value of the current average values of adjacent cycles is calculated, and a line graph of the time and the difference value is generated and sent.
By adopting the technical scheme, the current average value difference is calculated, so that the later analysis of the occurrence process of the partial discharge by a user is facilitated.
In a second aspect, the application further discloses an operation monitoring system of the high voltage distribution cabinet, and the operation monitoring method of the high voltage distribution cabinet comprises
The signal acquisition module acquires ultrasonic signals in the power distribution cabinet and converts the ultrasonic signals into electric signals to be output;
the signal processing module is used for amplifying the signal and processing the clutter on the electric signal;
the central control module is used for receiving the electric signal and converting the electric signal into current data, comparing the current data with the first current threshold value and the second current threshold value, outputting a primary early warning signal if the current data is greater than the first current threshold value, and outputting a secondary early warning signal if the current data is less than the first current threshold value and is greater than or equal to the second current threshold value;
and the user terminal module receives the primary early warning signal and the secondary early warning signal.
Through adopting above-mentioned technical scheme, the inside ultrasonic signal of switch board of signal acquisition module collection operation is converted into the signal of telecommunication output, the signal of telecommunication is through the enlargiing of signal processing module and fall the noise, export to central control module, central control module contrast signal of telecommunication and first current threshold value, the size of second current threshold value, export one-level early warning signal or second grade early warning signal to user terminal module, in order to realize when the switch board moves, whether take place partial discharge phenomenon in the real time monitoring switch board, reduce because the power failure that overhauls at every turn and go on and produce adverse effect to the power consumption user.
Preferably, the signal acquisition module is set as a plurality of ultrasonic sensors arranged in the power distribution cabinet.
Through adopting above-mentioned technical scheme, ultrasonic sensor installs inside the switch board to reach the purpose that obtains the inside ultrasonic wave of switch board in service.
In a third aspect, the present application provides a terminal device, which adopts the following technical solution:
a terminal device comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein when the processor loads the computer program, the operation monitoring method of the high-voltage power distribution cabinet is executed.
By adopting the technical scheme, the computer program is generated by the method and stored in the memory so as to be loaded and executed by the processor, so that the terminal equipment is manufactured according to the memory and the processor, and the use by a user is facilitated.
In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions:
a computer-readable storage medium, in which a computer program is stored, and when the computer program is loaded and executed by a processor, the operation monitoring method for a high voltage distribution cabinet is adopted.
By adopting the technical scheme, the computer program is generated by the method and stored in the computer readable storage medium to be loaded and executed by the processor, and the computer program can be conveniently read and stored by the computer readable storage medium.
Drawings
Fig. 1 is a block diagram of an operation monitoring system of a high voltage distribution cabinet according to an embodiment of the present application.
Fig. 2 is a flowchart illustrating steps of a method for monitoring operation of a high voltage distribution cabinet according to an embodiment of the present disclosure.
Reference numerals: 1. a signal acquisition module; 2. a signal processing module; 20. an amplifier; 21. a filter; 3. a central control module; 30. a data storage; 31. a controller; 4. and a user terminal module.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses operation monitoring system of high voltage distribution cabinet. Referring to fig. 1, the operation monitoring system of the high voltage distribution cabinet includes a signal acquisition module 1, a signal processing module 2, a central control module 3, and a user terminal module 4.
The signal acquisition module 1 sets up to a plurality of ultrasonic sensor, all places ultrasonic sensor in every switch board in the switch board room, and the quantity of ultrasonic sensor in every switch board sets up to a plurality ofly, can detect the position of difference in the switch board. And meanwhile, the power distribution cabinet and the ultrasonic sensors in the power distribution cabinet are numbered, and the number data is stored in the central control module 3. The ultrasonic sensor receives the ultrasonic signal and converts the ultrasonic signal into a corresponding current signal to be output. When partial discharge occurs in the power distribution cabinet, an ultrasonic signal can be generated, and the intensity of the ultrasonic signal is in direct proportion to the current of partial discharge.
The signal processing module 2 comprises a plurality of amplifiers 20 and filters 21, the number of the amplifiers 20 is the same as that of the ultrasonic sensors, the number of the filters 21 is also the same as that of the ultrasonic sensors, the amplifiers 20 are in communication with the ultrasonic sensors, the amplifiers 20 and the filters 21 are in communication, the amplifiers 20 receive the current signals, amplify the current signals and output the amplified current signals to the filters 21, and the filters 21 are used for filtering interference of clutter signals.
The central control module 3 comprises a data memory 30 and a controller 31, the data memory 30 is used for storing current signals output by the signal acquisition module 1, an average value calculation rule and a data comparison rule are preset in the controller 31, a first current threshold and a second current threshold are also arranged in the controller 31, the controller 31 is used for calling the current signals in the T period, calculating the current average value of the current signals in the T period, and comparing the current average value with the first current threshold and the second current threshold;
when the current average value is smaller than the second current threshold value, the partial discharge condition does not occur in the power distribution cabinet at this time, and the controller 31 generates a continuous waveform chart of time and a current value and sends the continuous waveform chart to the user terminal module 4, so that a worker can obtain the partial discharge condition in the power distribution cabinet.
When the average current value is greater than or equal to the first current and less than the first current threshold, a partial discharge phenomenon of a common level occurs in the power distribution cabinet, and at this time, the controller 31 locates the corresponding number of the power distribution cabinet and the corresponding number of the ultrasonic sensor, and sends number information to the user terminal module 4, wherein the number information includes the corresponding number of the power distribution cabinet in which the partial discharge occurs and the corresponding number of the ultrasonic sensor in which the partial discharge is detected; the controller 31 controls to send a secondary alarm signal to the user terminal module 4 to remind a worker of maintenance in the future; the controller 31 generates a continuous waveform of the time and the average current value and transmits the continuous waveform to the user terminal module 4, so that the worker can obtain the partial discharge condition in the power distribution cabinet.
When the current average value is greater than or equal to the first current threshold value, a phenomenon of partial discharge of a serious level occurs in the power distribution cabinet, and at this time, the controller 31 positions a corresponding number of the power distribution cabinet and a corresponding number of the ultrasonic sensor and sends number information to the user terminal module 4; meanwhile, the controller 31 controls the power distribution cabinet to perform power-off operation, and simultaneously the controller 31 sends a primary early warning signal to the user terminal module 4 to remind a worker to maintain the power distribution cabinet as soon as possible; the controller 31 generates a continuous waveform of the time and the average current value and transmits the continuous waveform to the user terminal module 4, so that the worker can obtain the partial discharge condition in the power distribution cabinet.
Specifically, the primary warning signal is to output a word of "primary alarm" to the user terminal module 4, and the secondary warning signal is to output a word of "secondary alarm" to the user terminal module 4.
A difference value calculation rule is also preset in the controller 31, the controller 31 retrieves the calculated current average value, calculates the difference value data of the current average values of adjacent periods, generates a line graph of time and the difference value and sends the line graph to the user terminal module 4 in real time, so that a worker can obtain the current average value change information in the process of generating the partial discharge, and the subsequent analysis of the worker is facilitated.
The user terminal module 4 may be a PC terminal, a mobile phone terminal, etc. to display the first-stage warning signal, the second-stage warning signal, the serial number data, the continuous oscillogram of the time and the average current value, and the line chart of the time and the difference value sent by the controller 31.
The implementation principle of the operation monitoring system of the high-voltage power distribution cabinet in the embodiment of the application is as follows: the signal acquisition module 1 acquires an ultrasonic signal inside the power distribution cabinet during operation and converts the ultrasonic signal into an electric signal to be output, the electric signal is amplified and denoised by the signal processing module 2 and is output to the central control module 3, the central control module 3 compares the electric signal with the first current threshold and the second current threshold, and outputs a primary early warning signal or a secondary early warning signal to the user terminal module 4 so as to prompt that a local discharge phenomenon exists in the power distribution cabinet of the user terminal.
The embodiment of the application discloses an operation monitoring method of a high-voltage power distribution cabinet. Referring to fig. 2, the operation monitoring method of the high voltage distribution cabinet comprises the following steps:
s1, presetting a first current threshold and a second current threshold, wherein the second current threshold is smaller than the first current threshold;
and S2, collecting ultrasonic signals inside the power distribution cabinet during operation, and converting the ultrasonic signals into electric signals, wherein the electric signals are current signals.
S3, carrying out data processing on the current signal to obtain current data, wherein the current data is a current average value in a T period;
and S4, comparing the data, comparing the current average value with the first current threshold value, if the current average value is greater than or equal to the first current threshold value, positioning the power distribution cabinet with the corresponding number for power-off operation, outputting the number information of the power distribution cabinet with partial discharge, and simultaneously outputting the primary early warning signal to prompt a worker, and generating and sending a continuous oscillogram of the time and the current average value so that the worker can obtain the partial discharge condition in the power distribution cabinet in the operation process of the power distribution cabinet.
If the current average value is smaller than the first current threshold value, comparing the current average value with the first current, if the current average value is larger than or equal to the first current, outputting the secondary alarm signal, positioning the corresponding power distribution cabinet, outputting the number information of the corresponding power distribution cabinet, generating a continuous oscillogram of time and the current average value and sending the continuous oscillogram so that a worker can obtain the partial discharge condition in the power distribution cabinet.
And if the current average value is smaller than the first current, judging that the partial discharge condition does not occur in the power distribution cabinet at the moment.
And calculating the difference of the current average values of adjacent periods, and generating a fold line of the time and the difference.
The implementation principle of the operation monitoring method of the high-voltage power distribution cabinet in the embodiment of the application is as follows: when the condition of partial discharge appears in the switch board, can produce ultrasonic signal, gather the inside ultrasonic signal of switch board when operation, turn into current data with ultrasonic signal, judge ultrasonic signal's power through the size of judging the electric current to whether the realization is when the switch board is operated, whether take place in the real time monitoring switch board has the partial discharge phenomenon, reduce because the power failure that overhauls going on produces the adverse effect of power consumption user production.
The embodiment of the application also discloses terminal equipment, and the terminal equipment comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor. The operation monitoring method of the high-voltage power distribution cabinet of the embodiment is adopted when the processor executes the computer program.
The terminal device includes a computer device such as a desktop computer, a notebook computer, or a cloud server, and the terminal device includes but is not limited to a processor and a memory, for example, the terminal device may further include an input/output device, a network access device, and a bus.
The processor may be a Central Processing Unit (CPU), and of course, according to the actual use situation, other general processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. may also be used, and the general processors may be microprocessors or any conventional processors, etc., which is not limited in this application.
The memory may be an internal storage unit of the terminal device, for example, a hard disk or a memory of the terminal device, or an external storage device of the terminal device, for example, a plug-in hard disk, a smart card (SMC), a secure digital card (SD) or a flash memory card (FC) provided on the terminal device, or a combination of the internal storage unit of the terminal device and the external storage device, and the memory is used for storing a computer program and other programs and data required by the terminal device, and the memory is also used for temporarily storing data that has been output or will be output, which is not limited in this application.
The operation monitoring method of the high-voltage power distribution cabinet of the embodiment is stored in the memory of the terminal equipment through the terminal equipment, and is loaded and executed on the processor of the terminal equipment, so that the terminal equipment is convenient for users to use.
The computer program may be stored in a computer readable medium, the computer program includes computer program code, the computer program code may be in a source code form, an object code form, an executable file or some intermediate form, and the like, the computer readable medium includes any entity or device capable of carrying the computer program code, a recording medium, a usb disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a Read Only Memory (ROM), a Random Access Memory (RAM), an electrical carrier signal, a telecommunication signal, a software distribution medium, and the like, and the computer readable medium includes but is not limited to the above components.
The operation monitoring method of the high-voltage power distribution cabinet of the embodiment is stored in the computer-readable storage medium through the computer-readable storage medium, and is loaded and executed on the processor, so that the operation monitoring method of the high-voltage power distribution cabinet can be conveniently stored and applied.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. An operation monitoring method of a high-voltage power distribution cabinet is characterized in that: comprises that
Presetting a first current threshold and a second current threshold, wherein the second current threshold is smaller than the first current threshold;
collecting ultrasonic signals inside the power distribution cabinet during operation, and converting the ultrasonic signals into current data;
data comparison, namely comparing the current data with a first current threshold, if the current data is greater than or equal to the first current threshold, judging that a stronger partial discharge condition exists in the power distribution cabinet, and sending a primary early warning signal to give an alarm;
if the current data is smaller than the first current threshold, comparing the current data with a second current threshold, and if the current data is larger than or equal to the second current threshold, indicating that a weak partial discharge condition exists in the power distribution cabinet, and sending a secondary early warning signal to give an alarm;
and if the current data is smaller than the second current threshold, judging that the partial discharge condition does not occur in the power distribution cabinet at the moment.
2. The method for monitoring the operation of a high voltage distribution cabinet according to claim 1, characterized in that: numbering the power distribution cabinets, and in the data comparison step, if the power distribution cabinets are judged to have weak partial discharge conditions, positioning the numbers of the power distribution cabinets and sending the numbers; and if the situation that the power distribution cabinet has stronger partial discharge is judged, positioning the serial number of the power distribution cabinet and sending the serial number.
3. The method for monitoring the operation of a high voltage distribution cabinet according to claim 1, characterized in that: in the data comparison step, if the situation of strong partial discharge exists in the power distribution cabinet, the power supply of the power distribution cabinet with the situation of strong partial discharge is automatically cut off.
4. The method for monitoring the operation of a high voltage distribution cabinet according to claim 1, characterized in that: the current signal is the average value of the current in the T period.
5. The method for monitoring the operation of a high voltage distribution cabinet according to claim 1, characterized in that: in the data comparison step, when the current data is greater than or equal to the second current threshold, a continuous oscillogram of the time and the current average value is generated and sent out, so that a worker can obtain the partial discharge condition in the power distribution cabinet.
6. The method for monitoring the operation of a high voltage distribution cabinet according to claim 1, characterized in that: in the data comparison step, the difference value of the current average values of adjacent periods is calculated, and a line graph of the time and the difference value is generated and sent out.
7. An operation monitoring system of a high voltage distribution cabinet, which employs the operation monitoring method of the high voltage distribution cabinet according to any one of the claims 1 to 6, characterized in that: comprises that
The signal acquisition module (1) acquires ultrasonic signals in the power distribution cabinet, converts the ultrasonic signals into electric signals and outputs the electric signals;
the signal processing module (2) is used for amplifying the signal and processing the clutter on the electric signal;
the central control module (3) is preset with the first current threshold and the second current threshold, and is preset with an average value calculation rule, a data comparison rule and a difference value calculation rule, the central control module (3) receives the electric signal and converts the electric signal into the current data, compares the current data with the first current threshold, compares the current data with the second current threshold, outputs a primary early warning signal if the current data is greater than the first current threshold, and outputs a secondary early warning signal if the current data is less than the first current threshold and is greater than or equal to the second current threshold;
and the user terminal module (4) receives the primary early warning signal and the secondary early warning signal.
8. The operation monitoring system of a high voltage power distribution cabinet according to claim 7, characterized in that: the signal acquisition module (1) is set to be a plurality of ultrasonic sensors installed in the power distribution cabinet.
9. Terminal device comprising a memory, a processor and a computer program stored in the memory and being executable on the processor, characterized in that the processor, when loaded with the computer program, performs the method for monitoring the operation of a high voltage distribution cabinet according to any of claims 1-6.
10. A computer-readable storage medium, in which a computer program is stored, which, when being loaded by a processor, carries out the method for monitoring the operation of a high voltage distribution cabinet according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111415636.9A CN114152827A (en) | 2021-11-25 | 2021-11-25 | Operation monitoring method, system and device of high-voltage power distribution cabinet and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111415636.9A CN114152827A (en) | 2021-11-25 | 2021-11-25 | Operation monitoring method, system and device of high-voltage power distribution cabinet and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114152827A true CN114152827A (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111415636.9A Withdrawn CN114152827A (en) | 2021-11-25 | 2021-11-25 | Operation monitoring method, system and device of high-voltage power distribution cabinet and storage medium |
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| Country | Link |
|---|---|
| CN (1) | CN114152827A (en) |
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2021
- 2021-11-25 CN CN202111415636.9A patent/CN114152827A/en not_active Withdrawn
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Application publication date: 20220308 |