CN208705429U - The diagnostic system of high-tension switch cabinet Partial discharge signal - Google Patents
The diagnostic system of high-tension switch cabinet Partial discharge signal Download PDFInfo
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- CN208705429U CN208705429U CN201821323782.2U CN201821323782U CN208705429U CN 208705429 U CN208705429 U CN 208705429U CN 201821323782 U CN201821323782 U CN 201821323782U CN 208705429 U CN208705429 U CN 208705429U
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- 238000012545 processing Methods 0.000 claims abstract description 78
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 238000007781 pre-processing Methods 0.000 claims abstract description 21
- 238000004088 simulation Methods 0.000 claims description 12
- 238000013527 convolutional neural network Methods 0.000 claims description 11
- 238000012549 training Methods 0.000 claims description 8
- 230000001052 transient effect Effects 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 3
- 230000001537 neural effect Effects 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000003745 diagnosis Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
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Abstract
The utility model provides a kind of diagnostic system of high-tension switch cabinet Partial discharge signal, belongs to power test technical field, to solve the problems, such as that current method has very big subjectivity and limitation and insecure.Each detection sensor group connects with signal pre-processing module signal input part, signal pre-processing module signal output end and ADC processing module signal input part connect, ADC processing module signal output end and the first radio receiving transmitting module signal input part connect, first radio receiving transmitting module wirelessly connects with the second radio receiving transmitting module, second radio receiving transmitting module signal output end and processing module signal input part connect, the first signal output end of processing module and the first signal input part of display module connect, processing module second signal output end and memory module signal input part connect, processing module third signal output end and diagnostic module signal input part connect, diagnostic module signal output end and display module second signal input terminal connect, the 5th signal output end of processing module and alarm module signal input part connect.
Description
Technical field
The utility model relates to power test technical field more particularly to a kind of diagnosis systems of high-tension switch cabinet Partial discharge signal
System.
Background technique
High-tension switch cabinet is the direct equipment to distribution or customer power supply, is widely applied in the power system.Due to and supply
Electricity is directly related, and high voltage switch cabinet fault causes power outage bring economic loss and social loss very big.Due to high pressure
Narrow space, part in switchgear are various, structure is complicated, insulation distance is small, thus are easier to defect occur, give high-tension switch cabinet
Safe operation bring hidden danger.High-tension switch cabinet longtime running, element is influenced by strong electrical field, fuel factor etc. in cabinet, will cause absolutely
The decline of edge performance even deteriorates, to generate shelf depreciation, if shelf depreciation cannot be managed, will affect high-tension switch cabinet just
Often operation.Local discharge signal (Partial discharge signal) is carried out to running high-tension switch cabinet to diagnose, and can be high-tension switch cabinet
Repair based on condition of component provides important parameter and foundation, maintenance of high-voltage switch cabinet efficiency is improved, to avoid the burst thing of high-tension switch cabinet
Therefore improve power supply quality.
It at present when the Partial discharge signal to high-tension switch cabinet diagnoses, is realized by experienced staff,
Specially staff using single partial discharge detection equipment to switchgear carry out partial discharge detection, by single Partial discharge signal come
The insulation quality for judging high-tension switch cabinet, and obtains the type of Partial discharge signal, this mode not only have very big subjectivity and
Limitation, and do not have reliability.
Summary of the invention
The purpose of this utility model is that the method for solving at present to diagnose the Partial discharge signal of high-tension switch cabinet has very
Big subjectivity and limitation and do not have the technical issues of reliability, a kind of diagnosis system of high-tension switch cabinet Partial discharge signal is provided
System.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of diagnostic system of high-tension switch cabinet Partial discharge signal comprising signal acquisition and processing apparatus and long-distance intelligent are whole
End；The signal acquisition and processing apparatus includes multiple detection sensor groups, signal pre-processing module, ADC processing module and first
Radio receiving transmitting module；Remote intelligent terminal includes the second radio receiving transmitting module, display module, memory module, diagnostic module, processing
Module and alarm module；Each detection sensor group is installed on the surface of a high-tension switch cabinet, and each detection sensor group
In sensor connect with the signal input part of signal pre-processing module, the signal output end and ADC of signal pre-processing module
The signal input part of processing module connects, and the signal of the signal output end of ADC processing module and the first radio receiving transmitting module inputs
End connection, the first radio receiving transmitting module and the second radio receiving transmitting module are wirelessly connected, the signal output of the second radio receiving transmitting module
End is connect with the signal input part of processing module, and the first signal output end of processing module and the first signal of display module input
End connection, the second signal output end of processing module and the signal input part of memory module connect, the third signal of processing module
The connection of the signal input part of output end and diagnostic module, the signal output end of diagnostic module and the second signal of display module input
End connection, the fourth signal output end of processing module and the signal input part of alarm module connect；
Wherein, the local discharge signal where each detection sensor group is used to acquire in high-tension switch cabinet, and will acquisition
To local discharge signal be sent to signal pre-processing module, local discharge signal is amplified by signal pre-processing module,
It, will treated that Partial discharge signal is sent to ADC processing module, ADC processing after filtering and detection obtain that treated Partial discharge signal
Module will treated after Partial discharge signal is changed into digital Partial discharge signal, and digital Partial discharge signal is passed sequentially through the first wireless receiving and dispatching
Module and the second radio receiving transmitting module are sent to processing module；Digital Partial discharge signal is sent to display module by processing module control
It is shown and is controlled and be sent to memory module and stored；While processing module is according to the digital office of each detection sensor group
Discharge signal generates the partial discharge map of each high-tension switch cabinet, and the partial discharge map of each high-tension switch cabinet is sent to diagnosis mould
Block is determined the electric discharge type of each high-tension switch cabinet by diagnostic module according to the partial discharge map of each high-tension switch cabinet, and will be every
The electric discharge type of a high-tension switch cabinet is sent to display module and is shown；When processing module determines the number of any high-tension switch cabinet
When word Partial discharge signal is more than the first preset threshold, processing module control alarm module is alarmed.
Optionally, the diagnostic module determines putting for each high-tension switch cabinet according to the partial discharge map of each high-tension switch cabinet
When electric type, diagnostic module is respectively by the partial discharge map input convolutional Neural net that training obtains in advance of each high-tension switch cabinet
Network determines the electric discharge type of each high-tension switch cabinet according to the output result of the convolutional neural networks.
Optionally, each detection sensor group includes transient earth voltage sensor, ultrasonic sensor and superfrequency sensing
Device.
Optionally, the transient earth voltage sensor in each detection sensor group, ultrasonic sensor and superfrequency sensing
Device passes through BNC line and connect with signal pre-processing module.
Optionally, first radio receiving transmitting module and the second radio receiving transmitting module are WIFI module.
Optionally, the alarm module includes multiple simulation alarm lamps, the corresponding simulation alarm of each high-tension switch cabinet
Lamp, when the processing module control alarm module is alarmed, when the digital Partial discharge signal of any high-tension switch cabinet is more than first
When preset threshold, processing module controls the corresponding simulation alarm lamp of the high-tension switch cabinet and shows the first color；It high is pressed off when any
When closing the digital Partial discharge signal of cabinet more than the second preset threshold, processing module controls the corresponding simulation alarm lamp of the high-tension switch cabinet
Show the second color.
The beneficial effects of the utility model are:
By setting signal acquisition processing device and remote intelligent terminal, providing one kind can be in the operation of high-tension switch cabinet
Transient earth voltage, ultrasonic wave and the superfrequency of carrying out synchronous to multi-panel high-tension switch cabinet detects in the process, remotely to its shelf depreciation
The system that signal is diagnosed does not have subjectivity and limitation not only without manually being judged during diagnosis, and
And worker's workload can be effectively reduced.By the acquisition of multiple detection sensor group real-time perfoming Partial discharge signals, and by examining
Disconnected module is diagnosed, and is alarmed by alarm module, high-tension switch cabinet can not only be found in time in operational process
The failure of middle appearance, and can accurately determine the electric discharge type of high-tension switch cabinet by diagnostic module, testing result is with can
By property.Therefore, compared with the background art, the utility model is with testing result with reliability, without subjectivity and limitation
Property can ensure staff's personal safety, high-tension switch cabinet can be widely popularized and can found in time in power industry
The advantages that defect.
Detailed description of the invention
Fig. 1 is the system composition schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with drawings and examples.
As shown in Figure 1, the diagnostic system of the high-tension switch cabinet Partial discharge signal in the present embodiment includes signal acquisition process dress
Set 2 and remote intelligent terminal 3；The signal acquisition and processing apparatus 2 includes multiple detection sensor groups 1, signal pre-processing module
21, ADC processing module 22 and the first radio receiving transmitting module 23；Remote intelligent terminal 3 includes the second radio receiving transmitting module 31, display
Module 32, memory module 33, diagnostic module 34, processing module 35 and alarm module 36；Each detection sensor group 1 is installed on one
The surface of a high-tension switch cabinet, and the sensor in each detection sensor group 1 is defeated with the signal of signal pre-processing module 21
Enter end connection, the signal output end of signal pre-processing module 21 is connect with the signal input part of ADC processing module 22, ADC processing
The signal output end of module 22 is connect with the signal input part of the first radio receiving transmitting module 23, the first radio receiving transmitting module 23 and
Two radio receiving transmitting modules 31 are wirelessly connected, and the signal output end of the second radio receiving transmitting module 31 and the signal of processing module 35 input
End connection, the first signal output end of processing module 35 are connect with the first signal input part of display module 32, processing module 35
Second signal output end connect with the signal input part of memory module 33, the third signal output end of processing module 35 and diagnosis
The signal input part of module 34 connects, and the signal output end of diagnostic module 34 and the second signal input terminal of display module 32 connect
It connects, the fourth signal output end of processing module 35 is connect with the signal input part of alarm module 36；
Wherein, the local discharge signal where each detection sensor group 1 is used to acquire in high-tension switch cabinet, and will acquisition
To local discharge signal be sent to signal pre-processing module 21, local discharge signal is put by signal pre-processing module 21
It greatly, will treated that Partial discharge signal is sent to ADC processing module 22, ADC after filtering and the detection Partial discharge signal that obtains that treated
Processing module 22 will treated after Partial discharge signal is changed into digital Partial discharge signal, and digital Partial discharge signal is passed sequentially through the first nothing
Line transceiver module 23 and the second radio receiving transmitting module 31 are sent to processing module 35；Processing module 35 is controlled digital Partial discharge signal
It is sent to display module 32 and is shown and controlled and be sent to memory module 33 and stored；Processing module 35 is according to each simultaneously
The digital Partial discharge signal of detection sensor group 1 generates the partial discharge map of each high-tension switch cabinet, and by each high-tension switch cabinet
Partial discharge map is sent to diagnostic module 34, determines each high pressure according to the partial discharge map of each high-tension switch cabinet by diagnostic module 34
The electric discharge type of switchgear, and the electric discharge type of each high-tension switch cabinet is sent to display module 32 and is shown；Work as processing
When module 35 determines that the digital Partial discharge signal of any high-tension switch cabinet is more than the first preset threshold, the control alarm mould of processing module 35
Block 36 is alarmed.
The diagnostic module 34 determines the electric discharge class of each high-tension switch cabinet according to the partial discharge map of each high-tension switch cabinet
When type, the partial discharge map input of each high-tension switch cabinet is trained obtained convolutional neural networks respectively by diagnostic module 34 in advance,
The electric discharge type of each high-tension switch cabinet is determined according to the output result of the convolutional neural networks.The output of convolutional neural networks
It as a result is the probability of each type of electric discharge type, the sum of probability of all electric discharge types is 1.By any high-tension switch cabinet
When shelf depreciation map inputs convolutional neural networks, the maximum electric discharge type of probability value is in convolutional neural networks output result
The electric discharge type of the high-tension switch cabinet.About the structure of convolutional neural networks, it may refer to convolutional neural networks in the related technology
Dependency structure, the present embodiment is not elaborated this.In training for determining each high pressure according to the partial discharge map of input
When the convolutional neural networks of the electric discharge type of switchgear, the training partial discharge map of preset quantity can be acquired in advance, and is marked respectively
The electric discharge type of these training partial discharge maps is infused, is then rolled up by these training partial discharge maps and its electric discharge type training to training
Product neural network, obtains trained convolutional neural networks.
Each detection sensor group 1 includes transient earth voltage sensor, ultrasonic sensor and extra-high video sensor.
Transient earth voltage sensor, ultrasonic sensor and extra-high video sensor in each detection sensor group 1
It is connect by BNC line with signal pre-processing module 21.
First radio receiving transmitting module 23 and the second radio receiving transmitting module 31 are WIFI module.
Optionally, the alarm module 36 includes multiple simulation alarm lamps, the corresponding simulation report of each high-tension switch cabinet
Warning lamp, when the control of processing module 35 alarm module 36 is alarmed, when the digital Partial discharge signal of any high-tension switch cabinet is super
When crossing the first preset threshold, processing module 35 can determine that exception occurs in the high-tension switch cabinet, it should remind work people in time
Member, therefore control the corresponding simulation alarm lamp of the high-tension switch cabinet and show the first color, such as amber light；When any high-tension switch cabinet
When digital Partial discharge signal is more than the second preset threshold, processing module 35 can determine that the high-tension switch cabinet breaks down, it should mention
Awake staff stops the work of the high-tension switch cabinet to overhaul to it, avoids damage high-tension switch cabinet, therefore handle mould
Block 35 controls the corresponding simulation alarm lamp of the high-tension switch cabinet and shows the second color, such as red light.
The electric discharge type of each high-tension switch cabinet includes tip, suspension or particle etc..
In this embodiment, the remote intelligent terminal 3 can be mobile phone, plate or desktop computer etc..
It should be noted that signal acquisition and processing apparatus 2, remote intelligent terminal 3 also include power module, power module
It is respectively used to power for signal acquisition and processing apparatus 2, remote intelligent terminal 3, to guarantee that modules can operate normally.Specifically
Ground, the power module of signal acquisition and processing apparatus 2 respectively with each of which detection sensor group 1, signal pre-processing module 21, ADC
Processing module 22 and the connection of the first radio receiving transmitting module 23, and for being multiple detection sensor groups 1, signal pre-processing module
21, ADC processing module 22 and the power supply of the first radio receiving transmitting module 23.The power module of remote intelligent terminal 3 respectively with its second
Radio receiving transmitting module 31, display module 32, memory module 33, diagnostic module 34, processing module 35 and alarm module 36 connect, and
For for the second radio receiving transmitting module 31, display module 32, memory module 33, diagnostic module 34, processing module 35 and alarm mould
Block 36 is powered.
Processing module 35 is in the office for generating each high-tension switch cabinet according to the digital Partial discharge signal of each detection sensor group 1
When putting map, the digital Partial discharge signal by each high-tension switch cabinet every preset time is arranged, and obtains each high-voltage switch gear
The partial discharge map of cabinet.For example, it is arranged to obtain its partial discharge every the digital Partial discharge signal of 20mm for a high-tension switch cabinet
Map.
It is understood that embodiment of above is merely to illustrate that the principles of the present invention and uses exemplary
Embodiment, however the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case where the spirit and essence of utility model, various changes and modifications can be made therein, these variations and modifications are also considered as this reality
With novel protection scope.
Claims (6)
1. a kind of diagnostic system of high-tension switch cabinet Partial discharge signal characterized by comprising signal acquisition and processing apparatus (2) and
Remote intelligent terminal (3)；The signal acquisition and processing apparatus (2) includes multiple detection sensor groups (1), signal pre-processing module
(21), ADC processing module (22) and the first radio receiving transmitting module (23)；Remote intelligent terminal (3) includes the second wireless receiving and dispatching mould
Block (31), display module (32), memory module (33), diagnostic module (34), processing module (35) and alarm module (36)；
Each detection sensor group (1) is installed on the surface of a high-tension switch cabinet, and the biography in each detection sensor group (1)
Sensor is connect with the signal input part of signal pre-processing module (21), the signal output end of signal pre-processing module (21) with
The signal input part of ADC processing module (22) connects, the signal output end and the first radio receiving transmitting module of ADC processing module (22)
(23) signal input part connection, the first radio receiving transmitting module (23) and the second radio receiving transmitting module (31) are wirelessly connected, and second
The signal output end of radio receiving transmitting module (31) is connect with the signal input part of processing module (35), and the first of processing module (35)
Signal output end is connect with the first signal input part of display module (32), the second signal output end of processing module (35) with deposit
The signal input part connection of module (33) is stored up, the third signal output end and the signal of diagnostic module (34) of processing module (35) are defeated
Enter end connection, the signal output end of diagnostic module (34) is connect with the second signal input terminal of display module (32), processing module
(35) fourth signal output end is connect with the signal input part of alarm module (36)；
Wherein, the local discharge signal where each detection sensor group (1) is used to acquire in high-tension switch cabinet, and will collect
Local discharge signal be sent to signal pre-processing module (21), by signal pre-processing module (21) to local discharge signal carry out
It, will treated that Partial discharge signal is sent to ADC processing module after amplification, filtering and detection obtain that treated Partial discharge signal
(22), ADC processing module (22) will treated after Partial discharge signal is changed into digital Partial discharge signal, successively by digital Partial discharge signal
Processing module (35) are sent to by the first radio receiving transmitting module (23) and the second radio receiving transmitting module (31)；Processing module (35)
Digital Partial discharge signal is sent to display module (32) and is shown and controlled by control to be sent to memory module (33) and stores；
Processing module (35) generates the partial discharge of each high-tension switch cabinet according to the digital Partial discharge signal of each detection sensor group (1) simultaneously
Map, and the partial discharge map of each high-tension switch cabinet is sent to diagnostic module (34), by diagnostic module (34) according to each high
The partial discharge map of cabinet of compressing switch determines the electric discharge type of each high-tension switch cabinet, and the electric discharge type of each high-tension switch cabinet is sent out
It send to display module (32) and is shown；When processing module (35) determines that the digital Partial discharge signal of any high-tension switch cabinet is more than the
When one preset threshold, processing module (35) control alarm module (36) is alarmed.
2. the diagnostic system of high-tension switch cabinet Partial discharge signal according to claim 1, which is characterized in that the diagnostic module
(34) when determining the electric discharge type of each high-tension switch cabinet according to the partial discharge map of each high-tension switch cabinet, diagnostic module (34) point
Not by the partial discharge map input convolutional neural networks that training obtains in advance of each high-tension switch cabinet, according to the convolutional Neural net
The output result of network determines the electric discharge type of each high-tension switch cabinet.
3. the diagnostic system of high-tension switch cabinet Partial discharge signal according to claim 1, which is characterized in that each detection sensing
Device group (1) includes transient earth voltage sensor, ultrasonic sensor and extra-high video sensor.
4. the diagnostic system of high-tension switch cabinet Partial discharge signal according to claim 3, which is characterized in that each detection sensing
Transient earth voltage sensor, ultrasonic sensor and extra-high video sensor in device group (1) pass through BNC line and Signal Pretreatment
Module (21) connection.
5. the diagnostic system of high-tension switch cabinet Partial discharge signal according to claim 1,2 or 3, which is characterized in that described
One radio receiving transmitting module (23) and the second radio receiving transmitting module (31) are WIFI module.
6. the diagnostic system of high-tension switch cabinet Partial discharge signal according to claim 1, which is characterized in that the alarm module
It (36) include multiple simulation alarm lamps, the corresponding simulation alarm lamp of each high-tension switch cabinet, processing module (35) control
When alarm module (36) is alarmed, when the digital Partial discharge signal of any high-tension switch cabinet is more than the first preset threshold, processing
Module (35) controls the corresponding simulation alarm lamp of the high-tension switch cabinet and shows the first color；When the digital office of any high-tension switch cabinet
When discharge signal is more than the second preset threshold, processing module (35) controls the corresponding simulation alarm lamp of the high-tension switch cabinet and shows second
Color.
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| CN201821323782.2U CN208705429U (en) | 2018-08-16 | 2018-08-16 | The diagnostic system of high-tension switch cabinet Partial discharge signal |
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| CN201821323782.2U CN208705429U (en) | 2018-08-16 | 2018-08-16 | The diagnostic system of high-tension switch cabinet Partial discharge signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031069A (en) * | 2018-08-16 | 2018-12-18 | 国网山西省电力公司临汾供电公司 | The diagnostic system of high-tension switch cabinet Partial discharge signal |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031069A (en) * | 2018-08-16 | 2018-12-18 | 国网山西省电力公司临汾供电公司 | The diagnostic system of high-tension switch cabinet Partial discharge signal |
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Effective date of registration: 20190730 Address after: Shanxi province Linfen City Xiangyang Road 041000 No. 100 Co-patentee after: State Grid Corporation of China Patentee after: LINFEN POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER COMPANY Co-patentee after: Nanjing Yuanning Electric Technology Co., Ltd. Address before: Shanxi province Linfen City Xiangyang Road 041000 No. 100 Co-patentee before: State Grid Corporation of China Patentee before: LINFEN POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER COMPANY |