CN208188246U - A kind of fault detection system of distribution overhead line - Google Patents
A kind of fault detection system of distribution overhead line Download PDFInfo
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- CN208188246U CN208188246U CN201820797993.3U CN201820797993U CN208188246U CN 208188246 U CN208188246 U CN 208188246U CN 201820797993 U CN201820797993 U CN 201820797993U CN 208188246 U CN208188246 U CN 208188246U
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- ultrasonic
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- voltage signal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model provides a kind of fault detection system of distribution overhead line, and the system comprises control device, ultrasonic probe, ultrasonic receiver and ultrasonic positioner, control device is electrically connected with ultrasonic probe, ultrasonic receiver or ultrasonic positioner；Ultrasonic probe, ultrasonic receiver includes shell and at least one first ultrasonic sensor, and shell is truncated cone-shaped, and shell with central shaft in 7 ° to 10 ° of angle to open；First ultrasonic sensor is set on the bottom surface of interior of shell, for the ultrasonic signal received to be converted to voltage signal；Ultrasonic positioner includes reflecting disc and sighting device, and the radius of curvature at the center of reflecting disc is greater than the radius of curvature in outside, and sighting device is set to the central point of reflecting disc, setting laser emitter and the second ultrasonic sensor in sighting device；Control device includes: receiving port, voltage-adjusting amplifier, the first low-pass filter amplifier, frequency generator, frequency converter, audio-frequency amplifier, bandpass filter and decibel converter.
Description
Technical field
The utility model relates to the field of fault detection of distribution network overhead line, the failure of espespecially a kind of distribution overhead line is examined
Examining system.
Background technique
Overhead distribution is usually run outdoors, and safety inside electric system in addition to by being influenced, also
Vulnerable to the threat from ambient enviroment, therefore, controller switching equipment management unit needs to provide according to electric system related management
Regular or interim detection is done to overhead distribution, find and eliminate hidden trouble of equipment in advance, guarantee that power distribution network is safe and reliable
Operation.
Patrol officer usually leans on naked eyes cooperation telescope to complete the detection of overhead distribution.When inspection, staff
The equipment on overhead line is observed point by point by naked eyes and telescope, finds out equipment deficiency.But distribution overhead line defect type
Various, partially obscured property defect can not be observed directly such as conducting wire internal corrosion, and viewing angle also can when staff's inspection
It is limited by height difference, landform, therefore this routine inspection mode heavy workload, low efficiency and easily careless omission.
Ye You equipment component management unit starts to detect route using infrared thermal imager.Infrared thermal imaging detection
It is highly effective to the detection of overheating defect in overhead distribution, but non-overheat defect can not be detected.And in 10kV overhead distribution
In route, cracking, foreign matter contact, bolt looseness of some common device defect such as insulators etc. are all non-overheating defects, can not
It is found by infrared thermal imager.
For these reasons, existing detection mode cannot efficiently exclude the security risk of overhead distribution.
Utility model content
In order to solve the problems, such as that current distribution overhead line detection heavy workload, low efficiency and accuracy are poor, this is practical new
Type embodiment provides a kind of fault detection system of distribution overhead line, and the system comprises control device, ultrasonic waves to receive dress
It sets and ultrasonic positioner, the control device is electrically connected with the ultrasonic probe, ultrasonic receiver or the ultrasonic positioner
It connects；
The ultrasonic probe, ultrasonic receiver includes shell and at least one first ultrasonic sensor, and the shell is rotary table
Shape, the shell with central shaft in 7 ° to 10 ° of angle to open；First ultrasonic sensor is set to the shell
On internal bottom surface, for the ultrasonic signal received to be converted to voltage signal；
The ultrasonic positioner includes reflecting disc and sighting device, and the radius of curvature at the center of the reflecting disc is greater than outer
The radius of curvature of side, the sighting device are set to the central point of the reflecting disc, in the sighting device setting laser emitter with
Second ultrasonic sensor；
The control device includes:
Receiving port, the voltage letter sent for receiving the ultrasonic probe, ultrasonic receiver or the ultrasonic positioner
Number；
Voltage-adjusting amplifier is connect with the receiving port, for adjusting the gain of the voltage signal；
First low-pass filter amplifier is connect with the voltage-adjusting amplifier, for exporting and amplifying the voltage letter
Number low-frequency component；
Frequency generator, for exporting frequency variation signal；
Frequency converter is connect with the frequency generator, for the low frequency according to the frequency variation signal to the voltage signal
Ingredient carries out frequency conversion, generates frequency conversion voltage signal；
Audio-frequency amplifier, for amplifying the frequency conversion voltage signal；
Bandpass filter, for exporting the allocated frequency band ingredient of the frequency conversion voltage signal；
Decibel converter, connect with the bandpass filter, for by the allocated frequency band ingredient of the frequency conversion voltage signal
Be converted to decibel value.
When the utility model utilizes distribution overhead line existing defects, it can usually be sent out in fault point at development of defects initial stage
Raw shelf depreciation, while this phenomenon of ultrasonic wave characteristic signal is supervened, distribution overhead line fault point is received by detection
The ultrasonic wave characteristic signal fault point issued.Thus overcome that existing detection mode detection efficiency is low, omission factor is high
Deficiency efficiently finds the insulation hidden danger of distribution overhead line and its equipment in time, avoids trip accident.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the fault detection system of distribution overhead line of the utility model embodiment；
Fig. 2 is a kind of ultrasonic probe, ultrasonic receiver of the fault detection system of distribution overhead line of the utility model embodiment
Schematic diagram；
Fig. 3 is a kind of ultrasonic positioner of the fault detection system of distribution overhead line of the utility model embodiment
Schematic diagram；
Fig. 4 is a kind of control device oblique view of the fault detection system of distribution overhead line of the utility model embodiment.
Specific embodiment
The utility model embodiment provides a kind of fault detection system of distribution overhead line.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It is as shown in Figure 1 a kind of structural representation of the fault detection system of distribution overhead line of the utility model embodiment
Figure, system as shown in the figure include control device 100, ultrasonic probe, ultrasonic receiver 200 and ultrasonic positioner 300, the control
Device 100 is electrically connected with the ultrasonic probe, ultrasonic receiver 200 or the ultrasonic positioner 300；
The ultrasonic probe, ultrasonic receiver 200 includes shell and at least one first ultrasonic sensor, and the shell is circle
Platform shape, the shell with central shaft in 7 ° to 10 ° of angle to open；First ultrasonic sensor is set to described outer
On bottom surface inside shell, for the ultrasonic signal received to be converted to voltage signal；
The ultrasonic positioner 300 includes reflecting disc and sighting device, and the radius of curvature at the center of the reflecting disc is big
Radius of curvature in outside, the sighting device are set to the central point of the reflecting disc, Laser emission are arranged in the sighting device
Device and the second ultrasonic sensor；
The control device 100 includes:
Receiving port 101 is sent for receiving the ultrasonic probe, ultrasonic receiver 200 or the ultrasonic positioner 300
Voltage signal；
Voltage-adjusting amplifier 102 is connect, for adjusting the gain of the voltage signal with the receiving port 101；
First low-pass filter amplifier 103 is connect with the voltage-adjusting amplifier 102, described for exporting and amplifying
The low-frequency component of voltage signal；
Frequency generator 106, for exporting frequency variation signal；
Frequency converter 105 is connect with the frequency generator 106, is used for according to the frequency variation signal to the voltage signal
Low-frequency component carry out frequency conversion, generate frequency conversion voltage signal；
Audio-frequency amplifier 112, for amplifying the frequency conversion voltage signal；
Bandpass filter 109, for exporting the allocated frequency band ingredient of the frequency conversion voltage signal；
Decibel converter 110, connect with the bandpass filter 109, for by the regulation of the frequency conversion voltage signal frequently
Band composition conversion is decibel value.
In the present embodiment, ultrasonic probe, ultrasonic receiver 200 is used to receive the ultrasonic wave of abort situation sending, and will receive
Ultrasound signal transmission to control device 100, thus primarily determine the approximate region of the overhead transmission line to break down.In determination
After the approximate region of abort situation, ultrasonic positioner 300 is connect with control device 100, ultrasonic positioner 300 can
To aim at the exact position of abort situation, and the signal that will test is sent to control device by detection ultrasonic signal
100, thereby determine that the exact position that overhead transmission line breaks down.
Wherein, the voltage signal received is sent to voltage-adjusting amplifier 102 by receiving port 101, and voltage control is put
The gain of the adjustable voltage signal of big device 102,103 reception gain of the first low-pass filter amplifier voltage signal adjusted,
And the low-frequency component of voltage signal is chosen, and will export after low-frequency component amplification.Frequency converter 105 receives frequency generator
106 frequency variation signals sent generate frequency conversion voltage using frequency variation signal to the adjustment voltage signal frequency by filtering and amplifying
Signal.Audio-frequency amplifier 112 can amplify the signal Jing Guo above-mentioned processing, and be converted to audio signal.Frequency conversion voltage signal warp
It after bandpass filter 109, exports regulation screen band component and is transmitted to decibel converter 110, decibel converter 110 will be by place
The frequency conversion voltage signal of reason is converted to decibel value output.It, can be by ultrasonic wave after control device 100 is to the processing of voltage signal
The ultrasonic signal that reception device 200 or ultrasonic positioner 300 receive is converted to decibel value and shows, and is converted to sound
Frequency exports, it is possible thereby to realize the accurate positionin to Location.
As one embodiment of the utility model, the control device further includes amplifying circuit 104, is connected to described
Between one low-pass filter amplifier 103 and the frequency converter 105, exported for amplifying first low-pass filter amplifier 103
Voltage signal, and send it to the frequency converter 105.Wherein, amplifying circuit 104 can will be put by the first low-pass filtering
The voltage signal of big device 103 is amplified to specified multiple, such as 25 times of amplification.
In the present embodiment, the control device 100 further includes middle width controller 115, is connected with the amplifying circuit 104
It connects, the signal amplification for controlling the amplifying circuit is horizontal.Putting for amplifying circuit 104 is controlled by middle width controller 115
It is big horizontal, the low-frequency component in voltage signal is amplified to required rank.
As one embodiment of the utility model, the control device 100 further includes low-pass filter circuit 107, with institute
The connection of frequency converter 105 is stated, for carrying out low-pass filtering to the frequency conversion voltage signal.To by frequency converter 105 adjust frequency it
Frequency conversion voltage signal afterwards chooses the output of its low-frequency component by low-pass filter circuit 107 again.
In the present embodiment, the control device 100 further includes the second low-pass filter amplifier 108, with the low pass filtered
Wave circuit 107 connects, the frequency conversion voltage signal exported for amplifying the low-pass filter circuit 107, and is exported respectively to described
Audio-frequency amplifier 112 and the bandpass filter 109.The signal received is amplified to rule by the second low-pass filter amplifier 108
Determine multiple, and output low frequency ingredient is to audio-frequency amplifier 112 and bandpass filter 109.
In the present embodiment, the control device 100 further includes waveform analysis module 114, with second low-pass filtering
Amplifier 108 connects, the frequency conversion voltage signal exported for analyzing second low-pass filter amplifier 108.Waveform analysis mould
Block 114 receives the waveform Jing Guo 108 output signal of the second low-pass filter amplifier, and exports an analysis as a result, the analysis result
It can be fault type, fault level of faulty line etc..
As one embodiment of the utility model, the control device 100 further includes temperature compensator 111, and described
Voltage-adjusting amplifier 102 and the decibel converter 110 connection, for detecting the voltage-adjusting amplifier 102 and described
The running temperature of decibel converter 110, and the voltage-adjusting amplifier 102 and the decibel converter 110 are exported respectively
Voltage signal and decibel value carry out temperature-compensating.Wherein, temperature compensator 111 can detect voltage-adjusting amplifier 102 and institute
The running temperature of decibel converter 110 is stated, and calculates the temperature difference of running temperature and rated temperature, to carry out temperature-compensating.
As one embodiment of the utility model, the control device 100 further includes loudspeaker 113, with the audio
Amplifier 112 connects.Wherein, the signal that audio-frequency amplifier 112 exports can be converted to sound by loudspeaker 113, be easy to use
Person monitors.After detecting ultrasonic signal, the ultrasonic signal strength that abort situation issues is maximum, then corresponding loudspeaker
The sound of sending is also maximum, it is possible thereby to the volume interpretation abort situation generated by loudspeaker.
The ultrasonic wave for being illustrated in figure 2 a kind of fault detection system of distribution overhead line of the utility model embodiment receives
The schematic diagram of device, ultrasonic probe, ultrasonic receiver 200 as shown in the figure include shell 201 and at least one first ultrasonic sensor
202。
In the present embodiment, shell 201 is in truncated cone-shaped, and shell 201 is opened with the angle for central shaft being in 7 ° to 10 °,
When shell 201 opens at this angle, ultrasonic signal can be accurately searched, quick lock in generates the faulty section of ultrasonic wave
Domain.When shell 201 is in truncated cone-shaped, it can effectively receive it to avoid the interference of ambient noise and be open towards the ultrasonic wave in range,
So that ultrasonic probe, ultrasonic receiver 200 can have good anti-interference and directive property.
Wherein, the quantity of the first ultrasonic sensor 202 shown in Fig. 2 is three, three the first ultrasonic sensors 202
To be placed in outer casing bottom towards the direction on the inside of shell, it is possible thereby to sense whole ultrasonic waves that shell 201 receives.This
Outside, ultrasonic probe, ultrasonic receiver 200 further includes data line 203, with this by the ultrasound signal transmission received to control dress
Set 100.
It is illustrated in figure 3 a kind of ultrasonic wave positioning of fault detection system of distribution overhead line of the utility model embodiment
The schematic diagram of device.Ultrasonic positioner 300 shown in figure includes reflecting disc 301 and sighting device 302.
In the present embodiment, reflecting disc 301 is the different disc of surface curvature.Reflecting disc 301 is for will be transmitted to it
The ultrasonic reflections on surface may refer in Fig. 3 shown in dotted arrow to sighting device 302, the transmission process direction of ultrasonic wave.It takes aim at
Setting laser emitter and the second ultrasonic sensor, the second ultrasonic sensor are set to 302 bottom of sighting device in quasi- device 302
Portion.Sighting device 302 can be hollow, in Fig. 3 303 be 302 hollow space of sighting device inner sidewall, 304 is in sighting devices 302
Empty partial shell, the ultrasonic wave come through the reflection of reflecting disc 301 can reach the second ultrasonic wave after being aimed at 302 hollow space of device and pass
Sensor, by data line, the ultrasound signal transmission received is extremely controlled by the through-hole below inner sidewall 303 in figure
Device 100 processed.
Wherein, the radius of curvature of 301 central point of reflecting disc is 0.5m to 2m.Under this radius of curvature, reflecting disc 301 has
Good ultrasonic reflections effect.In order to which the ultrasonic signal of diverging concentration is reflected on sighting device 301, reflecting disc 301
Curvature be variation, specially the radius of curvature of central part be greater than its lateral curvature radius, i.e., from 301 central point of reflecting disc to
On the direction of surrounding diverging, the radius of curvature of reflecting disc 301 increases.Obviously, 301 central point radius of curvature of reflecting disc is maximum, most
The radius of curvature on the one week periphery in outside is maximum.
It in the present embodiment, can be in 302 top of sighting device in order to enhance the positioning accuracy of ultrasonic positioner 300
Laser emitter is set, and laser has splendid directive property.When ultrasonic positioner 300 sends out the ultrasonic signal received
When giving control device 100, laser emitter can accurately point out received ultrasonic wave position at which on route.
It is oblique to be illustrated in figure 4 a kind of control device of the fault detection system of distribution overhead line of the utility model embodiment
View, control device 100 shown in figure include control interface, are provided with power switch 22, display in the control interface
20 and volume adjustment button 32, wherein display 20 can show decibel value, waveform analysis result etc..
In the present embodiment, for the ease of control device 100 and ultrasonic probe, ultrasonic receiver 200 or ultrasonic positioner
300 connection is additionally provided with ultrasonic wave input port 28.In addition, further including the button for adjusting 20 brightness of display in figure
24, for the data port 26 of data transmission, the slot 30 for accessing storage equipment, for the audio port of audio output
34, the charging port 36 for charging to control device, for audio input aux port 38 and for select menu, adjust
Display screen shows the control button 40 and 42 of content.
Wherein, for ultrasonic probe, ultrasonic receiver 200 for primarily determining supersonic zone, ultrasonic positioner 300 is further
Determination abort situation.Therefore, in use, ultrasonic probe, ultrasonic receiver 200 and ultrasonic positioner 300 be not simultaneously
It is connect with the ultrasonic wave input port 28 of control device 100.
By the trouble shooting system in the utility model, since ultrasonic probe, ultrasonic receiver can primarily determine ultrasonic wave area
Domain, and anti-interference with higher, in fault detection, user can use vehicle fast search, so as to improve event
Hinder the efficiency of detection.After detecting supersonic zone, it can be further accurately positioned failure using ultrasonic positioner, it can be with
Avoid the danger of artificial upper boom operation.Therefore, by the trouble shooting system in the utility model, distribution overhead line can be improved
Efficiency, precision and the cost for being significantly reduced risk, manpower and substance of fault detection.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not used to limit this foregoing is merely specific embodiment of the utility model
The protection scope of utility model, within the spirit and principle of the utility model, any modification for being made, changes equivalent replacement
Into etc., it should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of fault detection system of distribution overhead line, which is characterized in that the system comprises control device, ultrasonic waves to connect
Receiving apparatus and ultrasonic positioner, the control device and the ultrasonic probe, ultrasonic receiver or ultrasonic positioner electricity
Connection；
The ultrasonic probe, ultrasonic receiver includes shell and at least one first ultrasonic sensor, and the shell is truncated cone-shaped, institute
Shell is stated to open with central shaft in 7 ° to 10 ° of angle；First ultrasonic sensor is set to the interior of shell
Bottom surface on, for the ultrasonic signal received to be converted to voltage signal；
The ultrasonic positioner includes reflecting disc and sighting device, and the radius of curvature at the center of the reflecting disc is greater than outside
Radius of curvature, the sighting device are set to the central point of the reflecting disc, laser emitter and second are arranged in the sighting device
Ultrasonic sensor；
The control device includes:
Receiving port, the voltage signal sent for receiving the ultrasonic probe, ultrasonic receiver or the ultrasonic positioner；
Voltage-adjusting amplifier is connect with the receiving port, for adjusting the gain of the voltage signal；
First low-pass filter amplifier is connect with the voltage-adjusting amplifier, for exporting and amplifying the voltage signal
Low-frequency component；
Frequency generator, for exporting frequency variation signal；
Frequency converter is connect with the frequency generator, for the low-frequency component according to the frequency variation signal to the voltage signal
Frequency conversion is carried out, frequency conversion voltage signal is generated；
Audio-frequency amplifier, for amplifying the frequency conversion voltage signal；
Bandpass filter, for exporting the allocated frequency band ingredient of the frequency conversion voltage signal；
Decibel converter, connect with the bandpass filter, for by the allocated frequency band composition conversion of the frequency conversion voltage signal
For decibel value.
2. system according to claim 1, which is characterized in that the control device further includes amplifying circuit, is connected to institute
It states between the first low-pass filter amplifier and the frequency converter, for amplifying the voltage of the first low-pass filter amplifier output
Signal, and send it to the frequency converter.
3. system according to claim 2, which is characterized in that the control device further includes middle width controller, and described
Amplifying circuit connection, the signal amplification for controlling the amplifying circuit are horizontal.
4. system according to claim 1, which is characterized in that the control device further includes low-pass filter circuit, with institute
Frequency converter connection is stated, for carrying out low-pass filtering to the frequency conversion voltage signal.
5. system according to claim 4, which is characterized in that the control device further includes the amplification of the second low-pass filtering
Device is connect with the low-pass filter circuit, for amplifying the frequency conversion voltage signal of the low-pass filter circuit output, and it is defeated respectively
Out to the audio-frequency amplifier and the bandpass filter.
6. system according to claim 5, which is characterized in that the control device further includes waveform analysis module, with institute
The connection of the second low-pass filter amplifier is stated, for analyzing the frequency conversion voltage signal of the second low-pass filter amplifier output.
7. system according to claim 1, which is characterized in that the control device further includes temperature compensator, and described
Voltage-adjusting amplifier and decibel converter connection, for detecting the voltage-adjusting amplifier and the decibel converter
Running temperature, and the voltage-adjusting amplifier and the decibel converter are exported respectively voltage signal and decibel value into
Trip temperature compensation.
8. system according to claim 1, which is characterized in that the control device further includes loudspeaker, with the audio
Amplifier connection.
9. system according to claim 1, which is characterized in that the control device further includes control interface, the control
Power switch, display and volume adjustment button are provided on interface.
10. system according to claim 1, which is characterized in that the radius of curvature of the reflecting disc central point arrives for 0.5m
2m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820797993.3U CN208188246U (en) | 2018-05-28 | 2018-05-28 | A kind of fault detection system of distribution overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820797993.3U CN208188246U (en) | 2018-05-28 | 2018-05-28 | A kind of fault detection system of distribution overhead line |
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| Publication Number | Publication Date |
|---|---|
| CN208188246U true CN208188246U (en) | 2018-12-04 |
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ID=64428764
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820797993.3U Active CN208188246U (en) | 2018-05-28 | 2018-05-28 | A kind of fault detection system of distribution overhead line |
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| CN (1) | CN208188246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474502A (en) * | 2020-04-07 | 2020-07-31 | 朔黄铁路发展有限责任公司 | Transformer listening contrast equipment, listening positioning method, device and storage medium |
-
2018
- 2018-05-28 CN CN201820797993.3U patent/CN208188246U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474502A (en) * | 2020-04-07 | 2020-07-31 | 朔黄铁路发展有限责任公司 | Transformer listening contrast equipment, listening positioning method, device and storage medium |
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