CN203069730U - System and method for monitoring and analyzing insulation states of high-voltage device - Google Patents
System and method for monitoring and analyzing insulation states of high-voltage device Download PDFInfo
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- CN203069730U CN203069730U CN 201220591112 CN201220591112U CN203069730U CN 203069730 U CN203069730 U CN 203069730U CN 201220591112 CN201220591112 CN 201220591112 CN 201220591112 U CN201220591112 U CN 201220591112U CN 203069730 U CN203069730 U CN 203069730U
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Abstract
The utility model relates to the field of device detection and specifically relates to an ultraviolet ray detecting based system and a method for monitoring and analyzing insulation states of a high-voltage device. The system comprises an ultraviolet camera shooting module, a terminal video processing module, a distance measurement module, a wireless network module, an ultraviolet video management analysis module and a light emitting diode (LED) display module. By means of an ultraviolet photon number correction method, ultraviolet detection videos are subjected to digital recognition through the ultraviolet video management analysis module to extract information of ultraviolet photon numbers and the like, and the ultraviolet photon numbers are calibrated onto a standard distance scale according to actually measured distances, so that corona discharge intensity can be comprehensively compared and analyzed, influence brought by field detection conditions is eliminated, insulation states of the device is accurately evaluated, and the system and the method have the advantages of being visual, accurate, safe and fast.
Description
Technical field
The utility model relates to the electrical equipment detection range, is specifically related to a kind of high voltage installation insulation state monitoring analytic system based on UV detection.
Background technology
Along with the southeast-Nanyang, Shanxi-Jingmen 1000kV AC extra high voltage project of transmitting and converting electricity and Sichuan to tame dam-Shanghai ± constantly the putting into operation of UHV transmission engineerings such as 800kV direct current UHV transmission engineering, and the continuous propelling of " transferring electricity from the west to the east, north and south supplies mutually, national network " engineering, China's electrical network will become state-of-the-art complex electric network in the world, and China Power will step into big electrical network, large equipment, high parameter, extra-high voltage and robotization, informationalized new stage.Can begin to take shape national unified Da Qu interconnected network centered by Gorges power network to the year two thousand twenty, realize reasonable electric power energy general layout, and progressively form the vast east Asia interconnected power system of scope.For ensureing the operation steady in a long-term of this complex electric network, must at first guarantee the safe and reliable of various high voltage installations.Need a series of reliable, advanced experimental technique means that high voltage electric equipment is tested, monitored, could ensure high voltage electric equipment safety, reliable, economic, operation stably.
For the high voltage electric equipment of under atmospheric conditions, working, often can not get rid of the generation of corona and surface local discharge fully.High-tension power transmission and transformation equipment in design, make, install, operation, safeguard that any one link goes wrong and all may cause apparatus insulated defective, and after equipment puts into operation, also have the filthy problem of equipment outer insulation.During the electrical equipment charging operation, there are reasons such as burr, fault of construction and filth owing to equipment surface is coarse, can cause electric field in service to concentrate, electric density is excessive and electric discharge phenomena such as corona take place.The loss of corona discharge meeting produce power causes radio interference, and produce chemical reaction in air, causes harm such as organic insulation is aging.Corona discharge can be metastable discharge type, it also can be the early stage of development in the non-uniform electric field gap breakdown process, and electrical equipment is if comparatively strong corona or arc discharge phenomenon, add abominable external environment influence, flashover very likely takes place cause insulation fault.Therefore the generation of corona or surface local discharge be can utilize and phenomenon insulation status and the timely defective of discovering device own of the existing operational outfit of assessment indirectly strengthened.
During electrical equipment generation corona discharge, ionization will take place in its surrounding air, and in ionization process, the electronics in the air molecule constantly obtains energy from electric field, when electronics returns original stable state electron trajectory from the excited state track, will give off energy with forms such as corona, spark discharges.The radiant light wave frequency is relevant with gaseous species behind the gas ionization, and airborne principal ingredient is nitrogen (N2), and the spectrum major part of nitrogen is in the ultraviolet light zone, and namely wavelength coverage is at 280～400nm.So can judge the actual state of electrical equipment corona discharge by detecting ultraviolet light.Observe the outer ultraviolet ray of human eye visual range, just need change ultraviolet wavelength, set up the process of a spectrum conversion, ultraviolet image is converted to the visible image of human eye.Absorbed this part ultraviolet ray of the 240nm～280nm in the sunlight owing to surround the ozonosphere of the earth, so in the solar spectrum on ground, lacked ultraviolet wavelength band less than this part of 300nm, therefore the method that detects this band ultraviolet at present is called blind area type ultraviolet detection method in the daytime, uses under the sunlight by day.And other ultraviolet detection methods then can not avoid the influence of sun medium ultraviolet light, can only use at the post sunset at night.
The ultraviolet detection technique can be observed the situation that discharge takes place visual pattern, can determine the position of corona point rapidly, but the ultraviolet imagery detector of present main flow is image output only, fail to realize the analysis-by-synthesis to ultraviolet light subnumber and gain, distance, with accurate valuator device state of insulation.
The utility model content
The purpose of this utility model is to provide a kind of high voltage installation insulation state monitoring analytic system, has solved the problem that present UV detection technology can't realize the corona discharge imaging simultaneously and analyze corona discharge intensity.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
A kind of high voltage installation insulation state monitoring analytic system:
Comprise the day blind area ultraviolet ray that produces for collection high voltage installation corona discharge, and the ultraviolet photographing module of output light signal;
Comprise for the ultraviolet photon counting that draws according to light signal in the unit interval, and the terminal video processing module of output video data;
Comprise that measuring tested high voltage installation takes the photograph distance between the module to ultraviolet, and export the range finder module of distance parameter;
Comprise the wireless network module that video data and distance parameter is sent to ultraviolet video management analysis module by wireless network;
Comprise video data carried out numeral identification, extract ultraviolet light subnumber information, and with ultraviolet photon several according to distance parameter be corrected to standard detection apart from the time photon number ultraviolet video management analysis module;
The LCD display module of photon number when comprising for display video data and gauged distance.
Further technical scheme is that above-mentioned terminal video processing module mainly is to be made of photosignal modular converter, A/D modular converter and image central processing module, wherein the photosignal modular converter converts the light signal of ultraviolet photographing module to electric signal, and it is sent to the A/D modular converter, the image central processing module is handled the digital signal process that receives, and draws the ultraviolet photon counting in the unit interval.
Further technical scheme is the working power module that also comprises to ultraviolet photographing module, terminal video processing module, range finder module, wireless network module and the power supply of ultraviolet video management analysis module.
Further technical scheme is to comprise in the above-mentioned working power module that promising terminal video processing module, range finder module and LCD display module provide the 5V of electric energy to measure the supply voltage translation circuit, the 9V wireless network supply voltage translation circuit of electric energy is provided for wireless network module.
A kind of high voltage installation insulation state monitoring analytic system according to claim 1 is characterized in that: described standard detection distance is 5.5 meters.
A kind of high voltage installation insulation state monitoring analytic system according to claim 1 is characterized in that: described ultraviolet video management analysis module is to pass through formula
Calculate standard detection apart from the time photon number, x wherein
2Be the actual detected distance; y
2For at x
2Actual detected apart from the time ultraviolet ultraviolet light subnumber that detects; y
1Photon number during for gauged distance.
Further technical scheme is the microprocessor that above-mentioned image central processing module is C8051F410, and the A/D modular converter is the MAX1166 chip, and range finder module is DMC-50A laser ranging module.
A kind of high voltage installation insulation state monitoring analytical approach may further comprise the steps:
Gather the day blind area ultraviolet ray that the high voltage installation corona discharge produces by the ultraviolet photographing module, the output light signal;
Count the output video data by the terminal video processing module according to the ultraviolet photon that light signal drew in the unit interval;
Measure tested high voltage installation to the distance between the ultraviolet camera by range finder module, the output distance parameter;
By wireless network module video data and distance parameter are sent to ultraviolet video management analysis module by wireless network;
By ultraviolet video management analysis module video data is carried out numeral identification, extracts ultraviolet light subnumber information, and with ultraviolet photon several according to distance parameter be corrected to standard detection apart from the time photon number;
Photon number during by LCD display module display video data and gauged distance.
Further technical scheme is that above-mentioned terminal video processing module is to convert the light signal of ultraviolet photographing module to electric signal by the photosignal modular converter in it, and it is sent to the A/D modular converter, the image central processing module is handled the digital signal process that receives, and draws the ultraviolet photon counting in the unit interval.
Further technical scheme is that above-mentioned ultraviolet video management analysis module is to pass through formula
Calculate standard detection apart from the time photon number, x wherein
2Be the actual detected distance; y
2For at x
2Actual detected apart from the time ultraviolet ultraviolet light subnumber that detects; y
1Photon number during for gauged distance.
Compared with prior art, the beneficial effects of the utility model are: the utility model is the correction method of ultraviolet light subnumber, by ultraviolet video analysis administration module ultraviolet is detected video and carry out numeral identification, extract information such as ultraviolet light subnumber, detecting distance in conjunction with actual measurement is corrected to the ultraviolet light subnumber on the gauged distance yardstick, can carry out comprehensive comparative analysis to corona discharge intensity, and eliminate the influence that on-the-spot testing conditions brings, accurately the state of insulation of assessment apparatus has advantages such as directly perceived, accurate, safe, quick.
Description of drawings
Fig. 1 is the connection diagram of an embodiment of a kind of high voltage installation insulation state monitoring of the utility model analytic system.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Fig. 1 shows an embodiment of a kind of high voltage installation insulation state monitoring of the utility model analytic system:
A kind of high voltage installation insulation state monitoring analytic system:
Comprise the day blind area ultraviolet ray that produces for collection high voltage installation corona discharge, and the ultraviolet photographing module of output light signal;
Comprise for the ultraviolet photon counting that draws according to light signal in the unit interval, and the terminal video processing module of output video data;
Comprise that measuring tested high voltage installation takes the photograph distance between the module to ultraviolet, and export the range finder module of distance parameter;
Comprise the wireless network module that video data and distance parameter is sent to ultraviolet video management analysis module by wireless network;
Comprise video data carried out numeral identification, extract ultraviolet light subnumber information, and with ultraviolet photon several according to distance parameter be corrected to standard detection apart from the time photon number ultraviolet video management analysis module;
The LCD display module of photon number when comprising for display video data and gauged distance.
A preferred embodiment according to a kind of high voltage installation insulation state monitoring of the utility model analytic system, the terminal video processing module mainly is to be made of photosignal modular converter, A/D modular converter and image central processing module, wherein the photosignal modular converter converts the light signal of ultraviolet photographing module to electric signal, and it is sent to the A/D modular converter, the image central processing module is handled the digital signal process that receives, and draws the ultraviolet photon counting in the unit interval.
According to another preferred embodiment of a kind of high voltage installation insulation state monitoring of the utility model analytic system, also comprise to the working power module of ultraviolet photographing module, terminal video processing module, range finder module, wireless network module and the power supply of ultraviolet video management analysis module.As preferably, described working power module can be accumulator, solar cell or 220V working power, and it is the MAX1659 chip that 5V measures the supply voltage translation circuit, and 9V wireless network supply voltage translation circuit is the AS1117 chip.
According to another preferred embodiment of a kind of high voltage installation insulation state monitoring of the utility model analytic system, comprise in the working power module that promising terminal video processing module, range finder module and LCD display module provide the 5V of electric energy to measure the supply voltage translation circuit, the 9V wireless network supply voltage translation circuit of electric energy is provided for wireless network module.
According to another preferred embodiment of a kind of high voltage installation insulation state monitoring of the utility model analytic system, the standard detection distance is 5.5 meters.
According to another preferred embodiment of a kind of high voltage installation insulation state monitoring of the utility model analytic system, ultraviolet video management analysis module is to pass through formula
Calculate standard detection apart from the time photon number, x wherein
2Be the actual detected distance; y
2For at x
2Actual detected apart from the time ultraviolet ultraviolet light subnumber that detects; y
1Photon number during for gauged distance.
Another preferred embodiment according to a kind of high voltage installation insulation state monitoring of the utility model analytic system, the image central processing module is the microprocessor of C8051F410, the A/D modular converter is the MAX1166 chip, and range finder module is DMC-50A laser ranging module.
A kind of high voltage installation insulation state monitoring analytical approach may further comprise the steps:
Gather the day blind area ultraviolet ray that the high voltage installation corona discharge produces by the ultraviolet photographing module, the output light signal;
Count the output video data by the terminal video processing module according to the ultraviolet photon that light signal drew in the unit interval;
Measure tested high voltage installation to the distance between the ultraviolet camera by range finder module, the output distance parameter;
By wireless network module video data and distance parameter are sent to ultraviolet video management analysis module by wireless network;
By ultraviolet video management analysis module video data is carried out numeral identification, extracts ultraviolet light subnumber information, and with ultraviolet photon several according to distance parameter be corrected to standard detection apart from the time photon number;
Photon number during by LCD display module display video data and gauged distance.
Another embodiment according to this a kind of high voltage installation insulation state monitoring analytical approach, the terminal video processing module is to convert the light signal of ultraviolet photographing module to electric signal by the photosignal modular converter in it, and it is sent to the A/D modular converter, the image central processing module is handled the digital signal process that receives, and draws the ultraviolet photon counting in the unit interval.
According to another embodiment of this a kind of high voltage installation insulation state monitoring analytical approach, ultraviolet video management analysis module is to pass through formula
Calculate standard detection apart from the time photon number, x wherein
2Be the actual detected distance; y
2For at x
2Actual detected apart from the time ultraviolet ultraviolet light subnumber that detects; y
1Photon number during for gauged distance.
Although be described with reference to the utility model of a plurality of explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and embodiment will drop within the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes also will be tangible.
Claims (5)
1. high voltage installation insulation state monitoring analytic system is characterized in that:
Comprise the day blind area ultraviolet ray that produces for collection high voltage installation corona discharge, and the ultraviolet photographing module of output light signal;
Comprise for the ultraviolet photon counting that draws according to light signal in the unit interval, and the terminal video processing module of output video data;
Comprise that measuring tested high voltage installation takes the photograph distance between the module to ultraviolet, and export the range finder module of distance parameter;
Comprise the wireless network module that video data and distance parameter is sent to ultraviolet video management analysis module by wireless network;
Comprise video data carried out numeral identification, extract ultraviolet light subnumber information, and with ultraviolet photon several according to distance parameter be corrected to standard detection apart from the time photon number ultraviolet video management analysis module;
The LCD display module of photon number when comprising for display video data and gauged distance.
2. a kind of high voltage installation insulation state monitoring analytic system according to claim 1, it is characterized in that: described terminal video processing module mainly is to be made of photosignal modular converter, A/D modular converter and image central processing module, wherein the photosignal modular converter converts the light signal of ultraviolet photographing module to electric signal, and it is sent to the A/D modular converter, the image central processing module is handled the digital signal process that receives, and draws the ultraviolet photon counting in the unit interval.
3. a kind of high voltage installation insulation state monitoring analytic system according to claim 1 is characterized in that: also comprise to the working power module of ultraviolet photographing module, terminal video processing module, range finder module, wireless network module and the power supply of ultraviolet video management analysis module.
4. a kind of high voltage installation insulation state monitoring analytic system according to claim 3 is characterized in that: comprise in the described working power module that promising terminal video processing module, range finder module and LCD display module provide the 5V of electric energy to measure the supply voltage translation circuit, the 9V wireless network supply voltage translation circuit of electric energy is provided for wireless network module.
5. a kind of high voltage installation insulation state monitoring analytic system according to claim 1 is characterized in that: described standard detection distance is 5.5 meters.
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| CN 201220591112 CN203069730U (en) | 2012-11-10 | 2012-11-10 | System and method for monitoring and analyzing insulation states of high-voltage device |
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| CN 201220591112 CN203069730U (en) | 2012-11-10 | 2012-11-10 | System and method for monitoring and analyzing insulation states of high-voltage device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928752A (en) * | 2012-11-10 | 2013-02-13 | 四川电力科学研究院 | System and method for monitoring and analyzing insulation states of high-voltage device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928752A (en) * | 2012-11-10 | 2013-02-13 | 四川电力科学研究院 | System and method for monitoring and analyzing insulation states of high-voltage device |
| CN102928752B (en) * | 2012-11-10 | 2016-02-10 | 国网四川省电力公司电力科学研究院 | A kind of high voltage installation insulation state monitoring analytic system and method thereof |
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Address after: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610072 Patentee after: Electric Power Sciences Research Institute of Sichuan Electric Power Corporation Patentee after: State Grid Corporation of China Address before: Tsing Hua Road Qingyang District of Chengdu City, Sichuan Province, No. 24 610071 Patentee before: Sichuan Electric power Research Institute Patentee before: State Grid Corporation of China |
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Granted publication date: 20130717 Effective date of abandoning: 20160210 |
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