CN102928752B - A kind of high voltage installation insulation state monitoring analytic system and method thereof - Google Patents
A kind of high voltage installation insulation state monitoring analytic system and method thereof Download PDFInfo
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- CN102928752B CN102928752B CN201210447828.2A CN201210447828A CN102928752B CN 102928752 B CN102928752 B CN 102928752B CN 201210447828 A CN201210447828 A CN 201210447828A CN 102928752 B CN102928752 B CN 102928752B
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- 238000009434 installation Methods 0.000 title claims abstract description 42
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
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- 238000004458 analytical method Methods 0.000 claims abstract description 25
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Abstract
The present invention electrically relates to equipment Inspection field, is specifically related to a kind of high voltage installation insulation state monitoring analytic system based on UV detection and method thereof, comprises ultraviolet photographing module; Terminal video processing module; Range finder module; Wireless network module; Ultraviolet video administrative analysis module; LCD display module.The present invention is by the correction method of ultraviolet light subnumber, carry out numeral by ultraviolet video analysis management module to UV detect video to identify, extract the information such as ultraviolet light subnumber, in conjunction with actual measurement detecting distance, ultraviolet light subnumber is corrected on gauged distance yardstick, comprehensive comparative analysis can be carried out to corona discharge intensity, and eliminate the impact that Site Detection condition brings, the state of insulation of accurate evaluation equipment, has the advantages such as directly perceived, accurate, safe, quick.
Description
Technical field
The present invention relates to electrical equipment detection field, be specifically related to a kind of high voltage installation insulation state monitoring analytic system based on UV detection and method thereof.
Background technology
Along with constantly putting into operation of the UHV Transmission Engineerings such as southeast Shanxi-Nanyang-Jingmen 1000kV AC extra high voltage project of transmitting and converting electricity and Burner zone-Shanghai, Sichuan ± 800kV direct-current ultra high voltage power transmission engineering, and the continuous propelling of " transferring electricity from the west to the east, north and south supplies mutually, on 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 bulk power grid, large equipment, high parameter, extra-high voltage and robotization, informationalized new stage.The unified large-sized connection electrified wire netting in the whole nation centered by Gorges power network can be begun to take shape to the year two thousand twenty, realize reasonable electric power energy general layout, and the east Asia interconnected power system that progressively forming range is vast.For ensureing that this complex electric network long-term stability is run, must first guarantee the safe and reliable of various high voltage installation.Need a series of reliable, advanced experimental technique means to test high voltage electric equipment, monitor, could ensure that high voltage electric equipment is safe, reliable, economical, stably run.
For the high voltage electric equipment worked in atmospheric conditions, the generation of corona and surperficial shelf depreciation often can not be got rid of completely.High-tension power transmission and transformation equipment is in design, manufacture, installation, operation, safeguarding, any one link goes wrong all may cause apparatus insulated defect, and after putting equipment in service, also there is the filthy problem of equipment outer insulation.During electrical equipment charging operation, there is the reasons such as burr, fault of construction and filth because equipment surface is coarse, to cause in operation that electric field is concentrated, electric density is excessive and the electric discharge phenomena such as corona occur.The loss of corona discharge meeting produce power, causes radio interference, and produces chemical reaction in atmosphere, cause the harm such as organic insulation is aging.Corona discharge can be metastable discharge type, also can be the early stage of development in non-uniform electric field gap breakdown process, and electrical equipment is if there is comparatively strong corona or arcing events, add severe external environment influence, flashover very likely occurs and causes insulation fault.Therefore the generation of corona or surperficial shelf depreciation and the insulation status and the defect of Timeliness coverage equipment own that strengthen the existing operational outfit of phenomenon indirect assessment can be utilized.
During electrical equipment generation corona discharge, its surrounding air will ionize, and in ionization process, the electronics in air molecule constantly obtains energy from electric field, when electronics returns original steady state electronic track from excited state track, will give off energy with the form such as corona, spark discharge.After gas ionization, radiant light wave frequency is relevant with gaseous species, and the principal ingredient in air is nitrogen (N2), and the spectrum major part of nitrogen is in UV light region, and namely wavelength coverage is at 280 ~ 400nm.So the actual state of electrical equipment corona discharge can be judged by detecting ultraviolet light.Observe the extraneous ultraviolet of human viewable, just need to change ultraviolet wavelength, set up the process of a spectrum conversion, ultraviolet image is converted to the visible image of human eye.This part ultraviolet of 240nm ~ 280nm in sunlight is absorbed due to the ozonosphere surrounding the earth, so lacked in the solar spectrum on ground ultra-violet bands scope be less than 300nm this part, therefore the method detecting this band ultraviolet is at present called blind area type ultraviolet detection method in the daytime, can use under sunlight by day.And other ultraviolet detection methods then can not avoid the impact of sun medium ultraviolet light, can only use at post sunset at night.
Ultraviolet corona detector can observe the situation that electric discharge occurs visual pattern, the position of corona point can be determined rapidly, but the ultraviolet imagery detector only image output of main flow at present, fail to realize the comprehensive analysis to ultraviolet light subnumber and gain, distance, with the apparatus insulated state of accurate evaluation.
Summary of the invention
The object of the present invention is to provide a kind of high voltage installation insulation state monitoring analytic system and method thereof, solve the problem that current UV detection technology cannot realize corona discharge imaging simultaneously and analyze corona discharge intensity.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of high voltage installation insulation state monitoring analytic system:
Comprise the day-old chick ultraviolet produced for gathering high voltage installation corona discharge, and the ultraviolet photographing module of output optical signal;
Comprise the ultraviolet photon counting for drawing according to light signal in the unit interval, and the terminal video processing module of output video data;
Comprise and measure tested high voltage installation and take the photograph distance between module to ultraviolet, and export the range finder module of distance parameter;
Comprise and video data and distance parameter are sent to the wireless network module of ultraviolet video administrative analysis module by wireless network;
Comprise and numeral is carried out to video data identify, extract ultraviolet light subnumber information, and by several for ultraviolet photon be corrected to standard detection distance according to distance parameter time photon number ultraviolet video administrative analysis module;
Comprise the LCD display module for photon number when display video data and gauged distance.
Above-mentioned terminal video processing module is mainly made up of photoelectric signal transforming module, A/D modular converter and image central processing module, wherein photoelectric signal transforming module converts the light signal of ultraviolet photographing module to electric signal, and it is sent to A/D modular converter, the digital signal process process that image central processing module will receive, draws the ultraviolet photon counting in the unit interval.
Further technical scheme also comprises the working power module to ultraviolet photographing module, terminal video processing module, range finder module, wireless network module and ultraviolet video administrative analysis module for power supply.
Further technical scheme is that above-mentioned working power module comprises promising terminal video processing module, range finder module and LCD display module and provides the 5V of electric energy to measure supply voltage translation circuit, provides the 9V wireless network supply voltage translation circuit of electric energy 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 administrative analysis module passes through formula
Calculate photon number during standard detection distance, wherein x
2for actual detecting distance; y
2for at x
2the ultraviolet light subnumber of UV detect during actual detecting distance; y
1for photon number during gauged distance.
Further technical scheme is above-mentioned image central processing module is the microprocessor of C8051F410, and A/D modular converter is MAX1166 chip, and range finder module is DMC-50A laser ranging module.
A kind of high voltage installation insulation state monitoring analytical approach, comprises the following steps:
By the day-old chick ultraviolet that ultraviolet photographing module collection high voltage installation corona discharge produces, output optical signal;
The ultraviolet photon drawn in the unit interval according to light signal by terminal video processing module is counted, output video data;
Measure the distance between tested high voltage installation to ultraviolet camera by range finder module, export distance parameter;
By wireless network module, video data and distance parameter are sent to ultraviolet video administrative analysis module by wireless network;
Carry out numeral by ultraviolet video administrative analysis module to video data to identify, extract ultraviolet light subnumber information, and by purple
Photon number when outer photon number is corrected to standard detection distance according to distance parameter;
By photon number when LCD display module display video data and gauged distance.
Above-mentioned terminal video processing module converts the light signal of ultraviolet photographing module to electric signal by the photoelectric signal transforming module in it, and it is sent to A/D modular converter, the digital signal process process that image central processing module will receive, draws the ultraviolet photon counting in the unit interval.
Further technical scheme is above-mentioned ultraviolet video administrative analysis module is pass through formula
Calculate photon number during standard detection distance, wherein x
2for actual detecting distance; y
2for at x
2ultraviolet inspection during actual detecting distance
The ultraviolet light subnumber surveyed; y
1for photon number during gauged distance.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is the correction method of ultraviolet light subnumber, carry out numeral by ultraviolet video analysis management module to UV detect video to identify, extract the information such as ultraviolet light subnumber, in conjunction with actual measurement detecting distance, ultraviolet light subnumber is corrected on gauged distance yardstick, comprehensive comparative analysis can be carried out to corona discharge intensity, and eliminate the impact that Site Detection condition brings, the state of insulation of accurate evaluation equipment, has the advantages such as directly perceived, accurate, safe, quick.
Accompanying drawing explanation
Fig. 1 is the connection diagram of a kind of high voltage installation insulation state monitoring of the present invention analytic system embodiment.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 shows an embodiment of a kind of high voltage installation insulation state monitoring of the present invention analytic system:
A kind of high voltage installation insulation state monitoring analytic system:
Comprise the day-old chick ultraviolet produced for gathering high voltage installation corona discharge, and the ultraviolet photographing module of output optical signal;
Comprise the ultraviolet photon counting for drawing according to light signal in the unit interval, and the terminal video processing module of output video data;
Comprise and measure tested high voltage installation and take the photograph distance between module to ultraviolet, and export the range finder module of distance parameter;
Comprise and video data and distance parameter are sent to the wireless network module of ultraviolet video administrative analysis module by wireless network;
Comprise and numeral is carried out to video data identify, extract ultraviolet light subnumber information, and by several for ultraviolet photon be corrected to standard detection distance according to distance parameter time photon number ultraviolet video administrative analysis module;
Comprise the LCD display module for photon number when display video data and gauged distance.
According to a preferred embodiment of a kind of high voltage installation insulation state monitoring of the present invention analytic system, terminal video processing module is mainly made up of photoelectric signal transforming module, A/D modular converter and image central processing module, wherein photoelectric signal transforming module converts the light signal of ultraviolet photographing module to electric signal, and it is sent to A/D modular converter, the digital signal process process that image central processing module will receive, 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 present invention analytic system, also comprise the working power module to ultraviolet photographing module, terminal video processing module, range finder module, wireless network module and ultraviolet video administrative analysis module for power supply.As preferably, described working power module can be accumulator, solar cell or 220V working power, and it is MAX1659 chip that 5V measures supply voltage translation circuit, and 9V wireless network supply voltage translation circuit is AS1117 chip.
According to another preferred embodiment of a kind of high voltage installation insulation state monitoring of the present invention analytic system, working power module comprises promising terminal video processing module, range finder module and LCD display module to be provided the 5V of electric energy to measure supply voltage translation circuit, provides the 9V wireless network supply voltage translation circuit of electric energy for wireless network module.
According to another preferred embodiment of a kind of high voltage installation insulation state monitoring of the present invention analytic system, standard detection distance is 5.5 meters.
According to another preferred embodiment of a kind of high voltage installation insulation state monitoring of the present invention analytic system, ultraviolet video administrative analysis module passes through formula
Calculate photon number during standard detection distance, wherein x
2for actual detecting distance; y
2for at x
2the ultraviolet light subnumber of UV detect during actual detecting distance; y
1for photon number during gauged distance.
According to another preferred embodiment of a kind of high voltage installation insulation state monitoring of the present invention analytic system, image central processing module is the microprocessor of C8051F410, and A/D modular converter is MAX1166 chip, and range finder module is DMC-50A laser ranging module.
A kind of high voltage installation insulation state monitoring analytical approach, comprises the following steps:
By the day-old chick ultraviolet that ultraviolet photographing module collection high voltage installation corona discharge produces, output optical signal;
The ultraviolet photon drawn in the unit interval according to light signal by terminal video processing module is counted, output video data;
Measure the distance between tested high voltage installation to ultraviolet camera by range finder module, export distance parameter;
By wireless network module, video data and distance parameter are sent to ultraviolet video administrative analysis module by wireless network;
Carry out numeral by ultraviolet video administrative analysis module to video data to identify, extract ultraviolet light subnumber information, and by purple
Photon number when outer photon number is corrected to standard detection distance according to distance parameter;
By photon number when LCD display module display video data and gauged distance.
According to another embodiment of a kind of high voltage installation insulation state monitoring of the present invention analytical approach, terminal video processing module converts the light signal of ultraviolet photographing module to electric signal by the photoelectric signal transforming module in it, and it is sent to A/D modular converter, the digital signal process process that image central processing module will receive, draws the ultraviolet photon counting in the unit interval.
According to another embodiment of a kind of high voltage installation insulation state monitoring of the present invention analytical approach, ultraviolet video administrative analysis
Module passes through formula
Calculate photon number during standard detection distance, wherein x
2for actual detecting distance; y
2for at x
2the ultraviolet light subnumber of UV detect during actual detecting distance; y
1for photon number during gauged distance.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (7)
1. a high voltage installation insulation state monitoring analytic system, is characterized in that:
Comprise the day-old chick ultraviolet produced for gathering high voltage installation corona discharge, and the ultraviolet photographing module of output optical signal;
Comprise the ultraviolet photon counting for drawing according to light signal in the unit interval, and the terminal video processing module of output video data;
Comprise the distance measured between tested high voltage installation to ultraviolet photographing module, and export the range finder module of distance parameter;
Comprise and video data and distance parameter are sent to the wireless network module of ultraviolet video administrative analysis module by wireless network;
Comprise and numeral is carried out to video data identify, extract ultraviolet light subnumber information, and by several for ultraviolet photon be corrected to standard detection distance according to distance parameter time photon number ultraviolet video administrative analysis module;
Comprise the LCD display module for photon number when display video data and gauged distance;
Described terminal video processing module is mainly made up of photoelectric signal transforming module, A/D modular converter and image central processing module, wherein photoelectric signal transforming module converts the light signal of ultraviolet photographing module to electric signal, and it is sent to A/D modular converter, the digital signal received processes by image central processing module, draws the ultraviolet photon counting in the unit interval.
2. a kind of high voltage installation insulation state monitoring analytic system according to claim 1, is characterized in that: also comprise the working power module to ultraviolet photographing module, terminal video processing module, range finder module, wireless network module and ultraviolet video administrative analysis module for power supply.
3. a kind of high voltage installation insulation state monitoring analytic system according to claim 2, is characterized in that: described working power module comprises promising terminal video processing module, range finder module and LCD display module to be provided the 5V of electric energy to measure supply voltage translation circuit, provide the 9V wireless network supply voltage translation circuit of electric energy for wireless network module.
4. 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.
5. a kind of high voltage installation insulation state monitoring analytic system according to claim 1, is characterized in that: described ultraviolet video administrative analysis module passes through formula
Calculate photon number during standard detection distance, wherein x
2for actual detecting distance; y
2for at x
2the ultraviolet light subnumber of UV detect during actual detecting distance; y
1for photon number during gauged distance.
6. a high voltage installation insulation state monitoring analytical approach, is characterized in that comprising the following steps:
By the day-old chick ultraviolet that ultraviolet photographing module collection high voltage installation corona discharge produces, output optical signal;
The ultraviolet photon drawn in the unit interval according to light signal by terminal video processing module is counted, output video data;
Measure the distance between tested high voltage installation to ultraviolet camera by range finder module, export distance parameter;
By wireless network module, video data and distance parameter are sent to ultraviolet video administrative analysis module by wireless network;
Carry out numeral by ultraviolet video administrative analysis module to video data to identify, extract ultraviolet light subnumber information, and by several for ultraviolet photon be corrected to standard detection distance according to distance parameter time photon number;
By photon number when LCD display module display video data and gauged distance;
Described terminal video processing module converts the light signal of ultraviolet photographing module to electric signal by the photoelectric signal transforming module in it, and it is sent to A/D modular converter, the digital signal received processes by image central processing module, draws the ultraviolet photon counting in the unit interval.
7. a kind of high voltage installation insulation state monitoring analytical approach according to claim 6, is characterized in that: described ultraviolet video administrative analysis module passes through formula
Calculate photon number during standard detection distance, wherein x
2for actual detecting distance; y
2for at x
2the ultraviolet light subnumber of UV detect during actual detecting distance; y
1for photon number during gauged distance.
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| CN104035007A (en) * | 2014-06-10 | 2014-09-10 | 华北电力大学（保定） | Short-air-gap breakdown prewarning method of high-voltage electrical equipment |
| CN105004972B (en) * | 2015-06-25 | 2017-11-28 | 华北电力大学（保定） | Porcelain insulator Condition assessment of insulation method based on day blind ultraviolet imagery characteristics of image |
| CN105699866B (en) * | 2016-02-22 | 2018-08-28 | 株洲壹星科技股份有限公司 | The method for detecting rail traffic insulating element using UV corona technology |
| CN106940419A (en) * | 2017-05-08 | 2017-07-11 | 上海电力学院 | The ultraviolet detector of number of photons is compensated based on tellurometer survey |
| CN107015128A (en) * | 2017-05-08 | 2017-08-04 | 上海电力学院 | The device for detecting corona discharge of number of photons is compensated based on supersonic sounding |
| CN106997022A (en) * | 2017-05-08 | 2017-08-01 | 上海电力学院 | The detection means of ultraviolet partial discharge number of photons is compensated based on laser ranging |
| CN107728022B (en) * | 2017-10-19 | 2024-03-26 | 上海电力学院 | Ultraviolet partial discharge photon number detection device and method based on laser radar ranging compensation |
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| CN109709460A (en) * | 2019-02-11 | 2019-05-03 | 成都福森元光电科技有限公司 | A kind of blind type ultraviolet imagery system Photoncounting methods |
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