CN104111413A - Device and method used for assessing corona discharge of electric transmission and transformation equipment - Google Patents
Device and method used for assessing corona discharge of electric transmission and transformation equipment Download PDFInfo
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Abstract
The invention provides a device used for assessing corona discharge of electric transmission and transformation equipment. The device comprises an ultraviolet detector and a data processing and alarming unit, wherein the ultraviolet detector comprises an ultraviolet detecting module for obtaining a visible light image of a RGB image of corona discharge at one position of the electric transmission and transformation equipment, obtaining an ultraviolet photon at the position and converting the ultraviolet photon into a digital signal, and a sending module; the data processing and alarming unit obtains the RGB image to determine related information of the position, counts the number of the ultraviolet photons on each slice moment within the preset acquisition time, draws a two-dimensional curve of correlation between the number of the ultraviolet photons and the time, and assesses based on the curve. When the number of the ultraviolet photons at N moment on the curve is beyond a preset threshold value, the discharge intensity at the N moment is great, and an alarm message is sent out. With the implementation of the embodiment of the invention, and combination of the ultraviolet technology and the visible light, the number of the photons is recorded, analyzed and assessed exactly; the device used for assessing the corona discharge of the electric transmission and transformation equipment has the characteristics of strong anti-interference capability, exact location of the discharge point, high sensitivity and the like.
Description
Technical field
The present invention relates to electric system power transmission and transforming equipment corona discharge technology field, relate in particular to a kind of apparatus and method for assessment of power transmission and transforming equipment corona discharge.
Background technology
Corona discharge is the subject matter of power transmission and transforming equipment electromagnetic environment, can bring a series of problem, such as highfield, audible noise, radio interference etc.According to ieee standard definition, corona is that electric field intensity exceedes the energized conductor surrounding air ionization that critical value causes and a kind of luminous electric discharge phenomena that produce.Along with the rising of electric pressure, the field intensity on power transmission and transforming equipment surface can increase, especially at rough surface, because local field strength is too high, can cause surface electric field intensity skewness to cause corona discharge, in the time reaching critical value, dark in the situation that, also there will be the phenomenon of blue-light-emitting at night.
Detect and mainly contain for the corona discharge of power transmission and transforming equipment at present: the methods such as artificial inspection detection, pulse current detection, infrared detection, ultrasonic corona detection and ultraviolet detection.Wherein, artificial inspection detects not only wastes time and energy, and detection effect is also subject to extraneous factor impact, pulse current detects poor anti jamming capability and is not too applicable to extra-high pressure detection, and detecting instrument volume is larger, although infrared detection can detect power transmission and transforming equipment corona discharge phenomenon, the detecting instrument generation fault of easily generating heat, can not adapt to the requirement of present power transmission and transformation equipment state monitoring, ultrasonic corona detection is insensitive to the incipient fault detection of power transmission and transforming equipment, is also difficult to the effect that reaches desirable while detection out of doors, the ultimate principle of uv detection method is 240～280nm wave band ultraviolet light subnumber signal that accurate detection corona gives off, compared with other detection meanss, it is strong that ultraviolet detection has antijamming capability, point of discharge accurate positioning and highly sensitive feature, have simple and reliable simultaneously, precise and high efficiency, safe ready, the advantage such as cheap, its shortcoming is: can only carry out imaging to the ultraviolet photon detecting by Visible Light Camera, and picture is cut, then according to the photon number in each cutting frame, first carrying out a position differentiates, draw general photon number, calculate photon number by fuzzy mathematics, belong to the qualitative analysis to photon number, detected photon number is not actual photon number.
Summary of the invention
Embodiment of the present invention technical matters to be solved is, providing a kind of combines ultraviolet technology for assessment of the apparatus and method of power transmission and transforming equipment corona discharge with visible ray technology, the ultraviolet photon number that can send power transmission and transforming equipment accurately records and quantitative test, thereby obtain actual photon number and assess, the features such as it has, and antijamming capability is strong, point of discharge accurate positioning and sensitivity height.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of device for assessment of power transmission and transforming equipment corona discharge, and it matches with power transmission and transforming equipment, comprises ultraviolet detector and data processing and Alarm Unit; Wherein,
Described ultraviolet detector, comprises visual light imaging module, ultraviolet detection module and sending module; Wherein, described visual light imaging module and ultraviolet detection module are all connected with the input end of described sending module, and the output terminal of described sending module is connected with described data processing and Alarm Unit; Described visual light imaging module is used for obtaining the RGB image of described power transmission and transforming equipment one position corona discharge, and the RGB image of described acquisition is exported to described sending module; Described ultraviolet detection module is for obtaining the ultraviolet photon of described power transmission and transforming equipment at described position corona discharge, and the ultraviolet photon of described acquisition is transformed into digital signal exports to described sending module;
Described data processing and Alarm Unit, for the RGB image of exporting according to the described sending module obtaining, determine the relevant information of described position, and according to default acquisition time, each default burst moment, and the digital signal of the described sending module output obtaining, count the ultraviolet photon number engraving when described position is in interior each burst of described default acquisition time and the two-dimensional curve of drawing out ultraviolet photon number and time correlation, and according to described power transmission and transforming equipment corona discharge state under the two-dimensional curve assessment different time of described drafting, in the time that n-hour on described two-dimensional curve, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that is illustrated in the above power transmission and transforming equipment of described n-hour is large, and send warning information.
Wherein, described device also comprises Temperature Humidity Sensor, and described Temperature Humidity Sensor is connected with described data processing and Alarm Unit; Wherein,
Described data processing and Alarm Unit also obtain the humiture that in described default acquisition time, each the above Temperature Humidity Sensor of burst moment collects, and according to the ultraviolet photon number of the humiture of described acquisition and described statistics, draw out ultraviolet photon number, the first three-dimensional curve that humiture and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the first three-dimensional curve assessment different time of described drafting, in the time that on described the first three-dimensional curve, the M moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described M the above power transmission and transforming equipment of moment is large, while determining described M, engrave corresponding humiture and send warning information.
Wherein, described device also comprises wind speed wind direction sensor, and described wind speed wind direction sensor is connected with described data processing and Alarm Unit; Wherein,
Described data processing and Alarm Unit also obtain the wind speed and direction value that in described default acquisition time, each the above wind speed wind direction sensor of burst moment collects, and according to the ultraviolet photon number of the wind speed and direction value of described acquisition and described statistics, draw out ultraviolet photon number, the second three-dimensional curve that wind speed and direction value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the second three-dimensional curve assessment different time of described drafting, in the time that on described the second three-dimensional curve, the J moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described J the above power transmission and transforming equipment of moment is large, while determining described J, engrave corresponding wind speed and direction value and send warning information.
Wherein, described device also comprises rain sensor, and described rain sensor is connected with described data processing and Alarm Unit; Wherein,
Described data processing and Alarm Unit also obtain the rainfall value that in described default acquisition time, each the above rain sensor of burst moment collects, and according to the ultraviolet photon number of the rainfall value of described acquisition and described statistics, draw out ultraviolet photon number, the 3rd three-dimensional curve that rainfall value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the 3rd three-dimensional curve assessment different time of described drafting, in the time that on described the 3rd three-dimensional curve, the K moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described K the above power transmission and transforming equipment of moment is large, while determining described K, engrave corresponding rainfall value and send warning information.
Wherein, the visual light imaging module of described ultraviolet detector is Visible-light CCD image-forming module or visible ray cmos imaging module or ultraviolet imager or ultraviolet camera.
Wherein, described device also comprises solar panel and the accumulator being connected with described solar panel.
The embodiment of the present invention also provides a kind of method for assessment of power transmission and transforming equipment corona discharge, and it realizes in the aforesaid device for assessment of power transmission and transforming equipment corona discharge, and described method comprises:
Obtain the ultraviolet photon of the RGB image of power transmission and transforming equipment one position corona discharge and the corona discharge of described position, and the ultraviolet photon of described acquisition is transformed into digital signal;
According to the RGB image of described acquisition, determine the relevant information of described position, and according to default acquisition time, each default burst moment, and the digital signal of described acquisition, count the ultraviolet photon number engraving when described position is in interior each burst of described default acquisition time and the two-dimensional curve of drawing out ultraviolet photon number and time correlation, and according to described power transmission and transforming equipment corona discharge state under the two-dimensional curve assessment different time of described drafting, in the time that n-hour on described two-dimensional curve, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that is illustrated in the above power transmission and transforming equipment of described n-hour is large, and send warning information.
Wherein, described method further comprises:
The humiture engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the humiture of described acquisition and described statistics, draw out ultraviolet photon number, the first three-dimensional curve that humiture and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the first three-dimensional curve assessment different time of described drafting, in the time that on described the first three-dimensional curve, the M moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described M the above power transmission and transforming equipment of moment is large, while determining described M, engrave corresponding humiture and send warning information.
Wherein, described method further comprises:
The wind speed and direction value engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the wind speed and direction value of described acquisition and described statistics, draw out ultraviolet photon number, the second three-dimensional curve that wind speed and direction value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the second three-dimensional curve assessment different time of described drafting, in the time that on described the second three-dimensional curve, the J moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described J the above power transmission and transforming equipment of moment is large, while determining described J, engrave corresponding wind speed and direction value and send warning information.
Wherein, described method further comprises:
The rainfall value engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the rainfall value of described acquisition and described statistics, draw out ultraviolet photon number, the 3rd three-dimensional curve that rainfall value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the 3rd three-dimensional curve assessment different time of described drafting, in the time that on described the 3rd three-dimensional curve, the K moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described K the above power transmission and transforming equipment of moment is large, while determining described K, engrave corresponding rainfall value and send warning information.
Implement the embodiment of the present invention, there is following beneficial effect:
1, in embodiments of the present invention, due to the ultraviolet detector that adopts ultraviolet technology to combine with visible ray technology in device, can determine the position of power transmission and transforming equipment corona discharge and accurately record the ultraviolet photon number of this position and carry out quantitative test by ultraviolet technology by visible ray technology, thereby the adverse effect of having avoided distance because detecting and the gain of device to cause assessment result, improve the accuracy of power transmission and transforming equipment corona discharge state estimation, the features such as it has, and antijamming capability is strong, point of discharge accurate positioning and sensitivity height;
2, in embodiments of the present invention, owing to adopting one or more dissimilar meteorological sensors (as Temperature Humidity Sensor, wind speed wind direction sensor and rain sensor) to obtain different environmental baselines in device, and according to counting respectively under corresponding environmental baseline ultraviolet photon number under varying environment condition and carrying out quantitative test, thereby avoid adverse effect assessment result being caused because of varying environment factor, improved the accuracy of power transmission and transforming equipment corona discharge state estimation under varying environment condition.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, the accompanying drawing that obtains other according to these accompanying drawings still belongs to category of the present invention.
One structural representation of the device for assessment of power transmission and transforming equipment corona discharge that Fig. 1 provides for the embodiment of the present invention;
The another structural representation of the device for assessment of power transmission and transforming equipment corona discharge that Fig. 2 provides for the embodiment of the present invention;
The process flow diagram of the method for assessment of power transmission and transforming equipment corona discharge that Fig. 3 provides for the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail.
As depicted in figs. 1 and 2, the embodiment of the present invention provides a kind of device for assessment of power transmission and transforming equipment corona discharge, and it matches with power transmission and transforming equipment, and this device comprises ultraviolet detector 1 and data processing and Alarm Unit 2; Wherein,
Ultraviolet detector 1, comprises visual light imaging module 11, ultraviolet detection module 12 and sending module 13; Wherein, visual light imaging module 11 and ultraviolet detection module 12 are all connected with the input end of sending module 13, and the output terminal of sending module 13 is connected with data processing and Alarm Unit 2; Visual light imaging module 11 is Visible-light CCD (Charge Coupled Device, charge-coupled image sensor) image-forming module or visible ray CMOS(Complementary Metal-Oxide Semiconductor, complementary matal-oxide semiconductor) image-forming module or ultraviolet imager or ultraviolet camera, for obtaining the RGB image of power transmission and transforming equipment one position corona discharge, and the RGB image of acquisition is exported to sending module 13; Ultraviolet detection module 12 is for obtaining the ultraviolet photon of power transmission and transforming equipment at this position corona discharge, and the ultraviolet photon of acquisition is transformed into digital signal exports to sending module 13;
Data processing and Alarm Unit 2, for the RGB image of exporting according to the sending module 13 obtaining, determine the relevant information of this position, and according to default acquisition time, each default burst moment, and the digital signal exported of sending module 13 obtaining, count the ultraviolet photon number engraving when this position is in interior each burst of default acquisition time and the two-dimensional curve of drawing out ultraviolet photon number and time correlation, and according to power transmission and transforming equipment corona discharge state under the two-dimensional curve assessment different time of drawing, in the time that n-hour on the two-dimensional curve of this drafting, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that is illustrated in upper power transmission and transforming equipment of n-hour is large, and send warning information, wherein, N>0, relevant information includes but not limited to picture number, title, object of reference etc. up and down.
Should be noted that, digital signal number equates with ultraviolet photon number, counts the ultraviolet photon number engraving when this position is in each burst in default acquisition time and is equal to and counts the digital signal number engraving when this position is in each burst in default acquisition time.
Normally move in order to ensure each module or unit in this device, therefore this device also comprises solar panel and the accumulator being connected with solar panel, and this accumulator is powered for all modules in this device or unit.
Wherein, the visual light imaging module 11 of ultraviolet detector 1 is mainly the vision signal (as avi form) that gathers power transmission and transforming equipment corona discharge by image-forming principle, utilize the image storage apparatus in this visual light imaging module 11 to record this vision signal, and the vision signal collecting is resolved into the RGB image with picture frame form, according to the RGB image of this position, in data processing and Alarm Unit 2, automatically obtain picture number, and can in the information table taking picture number as index, input the out of Memory of this position except numbering, as title, object of reference up and down, coordinate figure etc.
The ultraviolet detection module 12 of ultraviolet detector 1 absorbs the principle design of ultraviolet light based on solute molecule, its principle of work is lambert Lambert-Beer(-Bill) law, in the time that a monochromic beam sees through flow cell, if mobile phase does not absorb light, absorbance log is directly proportional to the concentration of extinction component and the optical path length of flow cell, now, ultraviolet detection module 12 is aimed at the same position of power transmission and transforming equipment with visual light imaging module 11, what visual light imaging module 11 obtained is the RGB image of this position, the ultraviolet photon of this position corona discharge and ultraviolet detection module 12 obtains, the ultraviolet photon number that can send power transmission and transforming equipment has one of a record, and the ultraviolet photon of acquisition is transformed into digital signal exports to sending module 13.
Acquisition time default in data processing and Alarm Unit 2 is as a T.T., default acquisition time will be divided multiple default burst moment, can interval between each burst moment identical or interval is different, and will count respectively corresponding ultraviolet photon number according to each burst moment, and draw out the two-dimensional curve of ultraviolet photon number and time correlation.
As an example, when a position sensing in ultraviolet detector 1 is aimed at power transmission and transforming equipment on certain section of cable, obtain the locational RGB image of this cable a, RGB image transmitting is after data processing and Alarm Unit 2, automatically the information table that obtains a picture number (as 00001) and be index by this picture number, designer can input corresponding this section of cable title in this information table, object of reference and other content up and down, because acquisition time in this data processing and Alarm Unit 2 is 10 seconds, be divided into 100 parts of burst moment, each burst moment is 0.1 second, therefore the RGB image obtaining is to be also one at interval of 0.1 second, have the RGB image that 100 picture number are 00001, simultaneously, ultraviolet detector 1 also obtains the ultraviolet photon of identical a position, and will be transformed into digital signal by ultraviolet photon after a series of processing and export to data processing and Alarm Unit 2, count a position and be in the ultraviolet photon number (being digital signal number) on each 0.1 second burst moment in acquisition time 10 seconds, the two-dimensional curve of drawing out ultraviolet photon number and time correlation (obtains horizontal ordinate taking 0.1 second time as scale, ordinate is the curve of ultraviolet photon number), now, can be on ordinate with predetermined threshold value (as 1x10
4) be cut-off rule, search the point that is greater than this predetermined threshold value, and on horizontal ordinate, obtain ultraviolet photon number and be greater than time point corresponding to this predetermined threshold value, determine that these time point corona discharge intensity that are greater than predetermined threshold value are large, and send warning information.
Under varying environment condition, can to count ultraviolet photon number and carry out quantitative test in order to meet, thereby avoid adverse effect assessment result being caused because of varying environment factor, improve the accuracy of power transmission and transforming equipment corona discharge state estimation under varying environment condition, this device also comprises one or more dissimilar meteorological sensors, and each meteorological sensor is connected with data processing and Alarm Unit separately.
In the time that meteorological sensor adopts a Temperature Humidity Sensor 3, Temperature Humidity Sensor 3 is connected with data processing and Alarm Unit 2, now, data processing and Alarm Unit 2 are except processing RGB image and the statistics ultraviolet photon number from ultraviolet detector 1, while also obtaining interior each burst of default acquisition time, engrave the humiture that Temperature Humidity Sensor 3 collects, and according to the humiture obtaining and the ultraviolet photon number of statistics, draw out ultraviolet photon number, the first three-dimensional curve that humiture and time three are associated, and according to power transmission and transforming equipment corona discharge state under the first three-dimensional curve assessment different time of drawing, in the time that the M moment on the first three-dimensional curve, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that engraves power transmission and transforming equipment while being illustrated in M is large, while determining M, engrave corresponding humiture and send warning information, wherein, M>0.
When meteorological sensor adopts a wind speed wind direction sensor 4, wind speed wind direction sensor 4 is connected with data processing and Alarm Unit 2, now, data processing and Alarm Unit 2 are except processing RGB image and the statistics ultraviolet photon number from ultraviolet detector 1, also obtain the wind speed and direction value that in default acquisition time, upper wind speed wind direction sensor 4 of each burst moment collects, and according to the wind speed and direction value obtaining and the ultraviolet photon number of statistics, draw out ultraviolet photon number, the second three-dimensional curve that wind speed and direction value and time three are associated, and according to power transmission and transforming equipment corona discharge state under the second three-dimensional curve assessment different time of drawing, in the time that the J moment on the second three-dimensional curve, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that engraves power transmission and transforming equipment while being illustrated in J is large, while determining J, engrave corresponding wind speed and direction value and send warning information, wherein, J>0.It should be noted that power transmission and transforming equipment corona discharge and rainy degree also have very large relation, the type of rain includes but not limited to drizzle, heavy rain, and also has corresponding relation with rainy time length.As the degree that drizzle can aggravate corona discharge, heavy rain in the early stage corona discharge is increase tendency, but corona discharge intensity can reduce over time, because the filth on heavy rain meeting flush equipment surface.
When meteorological sensor adopts a rain sensor 5, rain sensor 5 is connected with data processing and Alarm Unit 2, now, data processing and Alarm Unit 2 are except processing RGB image and the statistics ultraviolet photon number from ultraviolet detector 1, while also obtaining interior each burst of default acquisition time, engrave the rainfall value that rain sensor 5 collects, and according to the rainfall value obtaining and the ultraviolet photon number of statistics, draw out ultraviolet photon number, the 3rd three-dimensional curve that rainfall value and time three are associated, and according to power transmission and transforming equipment corona discharge state under the 3rd three-dimensional curve assessment different time of drawing, in the time that on the 3rd three-dimensional curve, the K moment, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that engraves power transmission and transforming equipment while being illustrated in K is large, while determining K, engrave corresponding rainfall value and send warning information, wherein, K>0.
Should be noted that, the type of meteorological sensor can one or more independent assortments, but every type of one of application numbers is good, in the time that polytype meteorological sensor is applied simultaneously, make can determine fast and affect the factor of power transmission and transforming equipment corona discharge and discharge position in complex environment.
The principle of work of the device for assessment of power transmission and transforming equipment corona discharge is in embodiments of the present invention: gather the RGB image of power transmission and transforming equipment one position and the ultraviolet photon number of this position by ultraviolet detector 1, and gather humiture by Temperature Humidity Sensor 3, wind speed wind direction sensor 4 gathers the rainfall value that wind speed and direction value and rain sensor 5 gather, set up respectively environmental factor in data processing and Alarm Unit 2 according to varying environment condition, the three-dimensional curve of ultraviolet photon number and time correlation connection, carry out the state of accurate evaluation power transmission and transforming equipment corona discharge by three-dimensional curve, in the time that the ultraviolet photon in a certain moment on three-dimensional curve outnumbers predetermined threshold value, just can determine this time engrave the concurrent alarming information of delivering newspaper of the corresponding environmental factor that affects power transmission and transforming equipment corona discharge.
As shown in Figure 3, the embodiment of the present invention also provides a kind of method for assessment of power transmission and transforming equipment corona discharge, and it realizes in the aforementioned device for assessment of power transmission and transforming equipment corona discharge, and described method comprises:
The ultraviolet photon of the RGB image of step S101, acquisition power transmission and transforming equipment one position corona discharge and the corona discharge of described position, and the ultraviolet photon of described acquisition is transformed into digital signal;
Step S102, according to the RGB image of described acquisition, determine the relevant information of described position, and according to default acquisition time, each default burst moment, and the digital signal of described acquisition, count the ultraviolet photon number engraving when described position is in interior each burst of described default acquisition time and the two-dimensional curve of drawing out ultraviolet photon number and time correlation, and according to described power transmission and transforming equipment corona discharge state under the two-dimensional curve assessment different time of described drafting, in the time that n-hour on described two-dimensional curve, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that is illustrated in the above power transmission and transforming equipment of described n-hour is large, and send warning information.
It should be noted that the RGB image according to described acquisition, determine that the relevant information of described position is identical with the principle of work of the aforementioned device for assessment of power transmission and transforming equipment corona discharge, do not repeat them here.Wherein, relevant information includes but not limited to picture number, title, object of reference etc. up and down.
In embodiments of the present invention, in the time enabling Temperature Humidity Sensor, described method further comprises:
The humiture engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the humiture of described acquisition and described statistics, draw out ultraviolet photon number, the first three-dimensional curve that humiture and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the first three-dimensional curve assessment different time of described drafting, in the time that on described the first three-dimensional curve, the M moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described M the above power transmission and transforming equipment of moment is large, while determining described M, engrave corresponding humiture and send warning information.
In the time enabling wind speed wind direction sensor, described method further comprises:
The wind speed and direction value engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the wind speed and direction value of described acquisition and described statistics, draw out ultraviolet photon number, the second three-dimensional curve that wind speed and direction value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the second three-dimensional curve assessment different time of described drafting, in the time that on described the second three-dimensional curve, the J moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described J the above power transmission and transforming equipment of moment is large, while determining described J, engrave corresponding wind speed and direction value and send warning information.
In the time enabling rain sensor, described method further comprises:
The rainfall value engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the rainfall value of described acquisition and described statistics, draw out ultraviolet photon number, the 3rd three-dimensional curve that rainfall value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the 3rd three-dimensional curve assessment different time of described drafting, in the time that on described the 3rd three-dimensional curve, the K moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described K the above power transmission and transforming equipment of moment is large, while determining described K, engrave corresponding rainfall value and send warning information.
Implement the embodiment of the present invention, there is following beneficial effect:
1, in embodiments of the present invention, due to the ultraviolet detector that adopts ultraviolet technology to combine with visible ray technology in device, can determine the position of power transmission and transforming equipment corona discharge and accurately record the ultraviolet photon number of this position and carry out quantitative test by ultraviolet technology by visible ray technology, thereby the adverse effect of having avoided distance because detecting and the gain of device to cause assessment result, improve the accuracy of power transmission and transforming equipment corona discharge state estimation, the features such as it has, and antijamming capability is strong, point of discharge accurate positioning and sensitivity height;
2, in embodiments of the present invention, owing to adopting one or more dissimilar meteorological sensors (as Temperature Humidity Sensor, wind speed wind direction sensor and rain sensor) to obtain different environmental baselines in device, and according to counting respectively under corresponding environmental baseline ultraviolet photon number under varying environment condition and carrying out quantitative test, thereby avoid adverse effect assessment result being caused because of varying environment factor, improved the accuracy of power transmission and transforming equipment corona discharge state estimation under varying environment condition.
It should be noted that in said system embodiment, each included system unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional unit also, just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method is can carry out the hardware that instruction is relevant by program to complete, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (10)
1. for assessment of a device for power transmission and transforming equipment corona discharge, it matches with power transmission and transforming equipment, it is characterized in that, comprises ultraviolet detector and data processing and Alarm Unit; Wherein,
Described ultraviolet detector, comprises visual light imaging module, ultraviolet detection module and sending module; Wherein, described visual light imaging module and ultraviolet detection module are all connected with the input end of described sending module, and the output terminal of described sending module is connected with described data processing and Alarm Unit; Described visual light imaging module is used for obtaining the RGB image of described power transmission and transforming equipment one position corona discharge, and the RGB image of described acquisition is exported to described sending module; Described ultraviolet detection module is for obtaining the ultraviolet photon of described power transmission and transforming equipment at described position corona discharge, and the ultraviolet photon of described acquisition is transformed into digital signal exports to described sending module;
Described data processing and Alarm Unit, for the RGB image of exporting according to the described sending module obtaining, determine the relevant information of described position, and according to default acquisition time, each default burst moment, and the digital signal of the described sending module output obtaining, count the ultraviolet photon number engraving when described position is in interior each burst of described default acquisition time and the two-dimensional curve of drawing out ultraviolet photon number and time correlation, and according to described power transmission and transforming equipment corona discharge state under the two-dimensional curve assessment different time of described drafting, in the time that n-hour on described two-dimensional curve, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that is illustrated in the above power transmission and transforming equipment of described n-hour is large, and send warning information.
2. the device for assessment of power transmission and transforming equipment corona discharge as claimed in claim 1, is characterized in that, described device also comprises Temperature Humidity Sensor, and described Temperature Humidity Sensor is connected with described data processing and Alarm Unit; Wherein,
Described data processing and Alarm Unit also obtain the humiture that in described default acquisition time, each the above Temperature Humidity Sensor of burst moment collects, and according to the ultraviolet photon number of the humiture of described acquisition and described statistics, draw out ultraviolet photon number, the first three-dimensional curve that humiture and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the first three-dimensional curve assessment different time of described drafting, in the time that on described the first three-dimensional curve, the M moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described M the above power transmission and transforming equipment of moment is large, while determining described M, engrave corresponding humiture and send warning information.
3. the device for assessment of power transmission and transforming equipment corona discharge as claimed in claim 1, is characterized in that, described device also comprises wind speed wind direction sensor, and described wind speed wind direction sensor is connected with described data processing and Alarm Unit; Wherein,
Described data processing and Alarm Unit also obtain the wind speed and direction value that in described default acquisition time, each the above wind speed wind direction sensor of burst moment collects, and according to the ultraviolet photon number of the wind speed and direction value of described acquisition and described statistics, draw out ultraviolet photon number, the second three-dimensional curve that wind speed and direction value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the second three-dimensional curve assessment different time of described drafting, in the time that on described the second three-dimensional curve, the J moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described J the above power transmission and transforming equipment of moment is large, while determining described J, engrave corresponding wind speed and direction value and send warning information.
4. the device for assessment of power transmission and transforming equipment corona discharge as claimed in claim 1, is characterized in that, described device also comprises rain sensor, and described rain sensor is connected with described data processing and Alarm Unit; Wherein,
Described data processing and Alarm Unit also obtain the rainfall value that in described default acquisition time, each the above rain sensor of burst moment collects, and according to the ultraviolet photon number of the rainfall value of described acquisition and described statistics, draw out ultraviolet photon number, the 3rd three-dimensional curve that rainfall value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the 3rd three-dimensional curve assessment different time of described drafting, in the time that on described the 3rd three-dimensional curve, the K moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described K the above power transmission and transforming equipment of moment is large, while determining described K, engrave corresponding rainfall value and send warning information.
5. the device for assessment of power transmission and transforming equipment corona discharge as claimed in claim 1, is characterized in that, the visual light imaging module of described ultraviolet detector is Visible-light CCD image-forming module or visible ray cmos imaging module or ultraviolet imager or ultraviolet camera.
6. the device for assessment of power transmission and transforming equipment corona discharge as described in any one in claim 1 to 5, is characterized in that, described device also comprises solar panel and the accumulator being connected with described solar panel.
7. for assessment of a method for power transmission and transforming equipment corona discharge, it is characterized in that, it realizes in the device for assessment of power transmission and transforming equipment corona discharge as described in any one in claim 1 to 6, and described method comprises:
Obtain the ultraviolet photon of the RGB image of power transmission and transforming equipment one position corona discharge and the corona discharge of described position, and the ultraviolet photon of described acquisition is transformed into digital signal;
According to the RGB image of described acquisition, determine the relevant information of described position, and according to default acquisition time, each default burst moment, and the digital signal of described acquisition, count the ultraviolet photon number engraving when described position is in interior each burst of described default acquisition time and the two-dimensional curve of drawing out ultraviolet photon number and time correlation, and according to described power transmission and transforming equipment corona discharge state under the two-dimensional curve assessment different time of described drafting, in the time that n-hour on described two-dimensional curve, corresponding ultraviolet photon outnumbered predetermined threshold, the strength of discharge that is illustrated in the above power transmission and transforming equipment of described n-hour is large, and send warning information.
8. method as claimed in claim 7, is characterized in that, described method further comprises:
The humiture engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the humiture of described acquisition and described statistics, draw out ultraviolet photon number, the first three-dimensional curve that humiture and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the first three-dimensional curve assessment different time of described drafting, in the time that on described the first three-dimensional curve, the M moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described M the above power transmission and transforming equipment of moment is large, while determining described M, engrave corresponding humiture and send warning information.
9. method as claimed in claim 8, is characterized in that, described method further comprises:
The wind speed and direction value engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the wind speed and direction value of described acquisition and described statistics, draw out ultraviolet photon number, the second three-dimensional curve that wind speed and direction value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the second three-dimensional curve assessment different time of described drafting, in the time that on described the second three-dimensional curve, the J moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described J the above power transmission and transforming equipment of moment is large, while determining described J, engrave corresponding wind speed and direction value and send warning information.
10. method as claimed in claim 8, is characterized in that, described method further comprises:
The rainfall value engraving while obtaining interior each burst of described default acquisition time, and according to the ultraviolet photon number of the rainfall value of described acquisition and described statistics, draw out ultraviolet photon number, the 3rd three-dimensional curve that rainfall value and time three are associated, and according to described power transmission and transforming equipment corona discharge state under the 3rd three-dimensional curve assessment different time of described drafting, in the time that on described the 3rd three-dimensional curve, the K moment, corresponding ultraviolet photon outnumbered described predetermined threshold, the strength of discharge that is illustrated in described K the above power transmission and transforming equipment of moment is large, while determining described K, engrave corresponding rainfall value and send warning information.
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