CN105699866A - Method for detecting track traffic insulation parts through adoption of ultraviolet corona technology - Google Patents
Method for detecting track traffic insulation parts through adoption of ultraviolet corona technology Download PDFInfo
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- CN105699866A CN105699866A CN201610095905.0A CN201610095905A CN105699866A CN 105699866 A CN105699866 A CN 105699866A CN 201610095905 A CN201610095905 A CN 201610095905A CN 105699866 A CN105699866 A CN 105699866A
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- track traffic
- insulating element
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
Abstract
The present invention provides a method for detecting track traffic insulation parts through adoption of an ultraviolet corona technology. The track traffic insulation parts can emit ultraviolet light characteristics prior to being damaged during the running, the ultraviolet light emitted by the track traffic insulation parts is graded, and an ultraviolet sensor is adopted to detect the grade of the discharge ultraviolet light emitted by the track traffic insulation parts to determine the insulation condition of the track traffic insulation parts, so that the insulation condition may be forecasted before the insulation performances of the track traffic insulation parts are not completely damaged to prevent the track traffic insulation parts from being damaged. The method for detecting track traffic insulation parts through adoption of the ultraviolet corona technology is able to detect the insulation condition of the track traffic insulation parts through adoption of the ultraviolet corona technology to determine the insulation performances of the track traffic insulation parts, with non-contact detection, forecast the insulation condition in advance and effectively avoid over-heated faults.
Description
Technical field
The present invention relates to the component detection method of a kind of track traffic, it is specifically related to one and utilizes UV corona technology, to insulating elements such as contact net, insulator, locomotive high-voltage equipment in Transit Equipment, carry out the method that detection controls, belong to track traffic components/devices Monitoring and Controlling technical field。
Background technology
Source as electric railway railroad traction, electric power system is most important, it it is the important component part of track traffic, electric power system is mainly made up of transformer station, contact net, insulator, locomotive high-voltage equipment, electric pole etc., electric power system is high-voltage great-current, and the insulation degradation of its parts directly results in the reduction of safety coefficient, conevying efficiency。Such as, the current electric railway service time is up to decades, even if the wide circuit of high ferro such as force has also run reaches 8 years；And as the critical component of electric power system, the maintenance and repair of insulator at present still mainly through manual observation or by instruments such as megameters regularly to examine, fault carries out in the way of repairing, the manpower and materials that this mode expends are big, for Beijing-Guangzhou Railway road, the quantity of insulator is more than 150,000, missing inspection, false retrieval very easily occur, and equipment deterioration state does not have judging basis, the method simultaneously not having long term monitoring, therefore in the urgent need to a kind of method that the deterioration state of insulator can do comprehensive detection assessment and product。Transformer station, contact net, locomotive high-voltage equipment, electric pole etc. are required that the parts of insulating properties more do not have non-contact detection method and the device of maturation。
Do not find there be the patent literature constructed with the present invention by patent retrieval, have with the present invention patent of certain relation mainly to have following:
1, the patent No. is CN201510312179.9, name is called the utility model patent of " flashover on-line monitoring system is put in the distribution office based on ultraviolet light detection technique ", which disclose a kind of distribution office based on ultraviolet light detection technique and put flashover on-line monitoring system, this system includes data acquisition module, communication module and control terminal, ultraviolet light transducer that described data acquisition module includes being sequentially connected with, photoelectric conversion unit, AD conversion unit, master controller；Reverse scaling circuit and high pass filter it is provided with between described photoelectric conversion unit and AD conversion unit, ultraviolet light transducer receives ultraviolet light pulse, the current pulse signal of negative sense is converted to through photoelectric conversion module, through preposition reverse scaling circuit, obtaining forward voltage signal, forward voltage signal filters low-frequency disturbance by high pass filter；After carrying out analog digital conversion, signal is delivered to device master controller。By adopting the ultraviolet light sensing technology of advanced person, it is possible to achieve flashover is put in advance control and an early warning in the office of one of the main forms of distribution facility failure hidden danger。
2, the patent No. is CN201310327941.1, name is called the patent of invention of " contactless ultraviolet pulse discharge monitoring device ", which disclose a kind of contactless ultraviolet pulse discharge monitoring device, including sensor group, the signal condition unit being connected with sensor group, the microprocessor that is connected with signal condition unit, described microprocessor is also associated with power supply unit, memory element, display unit and control unit, being also associated with communication unit and GPS positioning unit on described microprocessor, described sensor group includes UV sensor。Discharge scenario is monitored by UV sensor, is carried out telecommunication by communication unit, is positioned by GPS positioning unit by this invention, not by High-frequency Interference, and electric discharge can be found before shelf depreciation punctures insulation, sabotage of electrical power equipment, and alarm and taking measures, ensure the stable of power system and safety, there is the advantages such as highly sensitive, volume is little, be easy to carry。
3, the patent No. is CN201010244378.8, name is called the patent of invention of " ultraviolet method power cable on-line condition monitoring assessment instrument ", which disclose a kind of ultraviolet method power cable on-line condition monitoring assessment instrument, be made up of shelf depreciation ultraviolet detection unit, dielectric parameter measurement unit, temperature detecting unit, central control processing unit, GSM data communication units and electric power management circuit；The outfan of the outfan of shelf depreciation ultraviolet detection unit and the outfan of dielectric parameter measurement unit and temperature detecting unit is connected with the input of central control processing unit respectively；The outfan of central control processing unit is connected with the input of GSM data communication units by CAN；The outfan of electric power management circuit is connected with the power end of shelf depreciation ultraviolet detection unit, dielectric parameter measurement unit, temperature detecting unit, central control processing unit and GSM data communication units respectively。Assess with parameters such as the buried lower cable temperature of on-line checking, shelf depreciation, dielectric property change and environmental aspects, there is the Detection results advantage that reliably sensitive, testing cost is relatively low。
So although these patents above-mentioned are directed to utilize ultraviolet light to be monitored, and propose some concrete monitoring methods, but all without proposing how to utilize ultraviolet light corona technology to carry out the urban transportation insulating element detecting the method controlled and device, and existing the urban transportation insulating element is general all in comparatively severe operating mode place work, it is easy to that insulating properties in poor quality occurs, the insulation degradation of its parts will result directly in the reduction of safety coefficient, conevying efficiency, so still needing to be improved further。
Summary of the invention
Present invention aims to the problem that the detection of existing track traffic insulating element performance is existing, a kind of method utilizing UV corona technology for detection track traffic insulating element is proposed, this kind of detection method has the monitoring function detecting track traffic insulating element running status in detail, so can shift to an earlier date whether anticipation track traffic insulating element exists potential faults, which kind of potential faults, it is also possible to accomplish further lifetime of system analysis。
In order to reach this purpose, the invention provides a kind of method utilizing UV corona technology for detection track traffic insulating element, according to electrion feature, track traffic insulating element is in running, can because of decreasing insulating before insulating element is in by damage, Discharge Phenomena, sends ultraviolet light；The ultraviolet light sent by track traffic insulating element carries out classification, utilize the rank residing for ultraviolet light of discharging that UV sensor detection track traffic insulating element sends, judge the insulation status residing for track traffic insulating element, thus carrying out insulation status forecast before track traffic insulating element insulating properties are destroyed not yet completely, it is prevented that track traffic insulating element damages。
Further, the described electric discharge utilizing UV sensor detection track traffic insulating element to send rank residing for ultraviolet light is to arrange UV sensor in the position that the insulation of track traffic insulating element is the weakest, the ultraviolet light in real time track traffic insulating element sent by UV sensor detects, utilize the electric discharge ultraviolet light that UV sensor detection track traffic insulating element sends, and the electric discharge ultraviolet signal sent by track traffic insulating element is converted to voltage signal, again by voltage signal after the filter and amplification of signal conditioning circuit and the Filtering Processing of software system, it is compared to statistics umber of pulse with the threshold value set, dense degree according to pulse judges that insulation of electrical installation damages the strength of discharge of position。
Further, the described electric discharge ultraviolet light that Ultraviolet sensor detection track traffic insulating element sends that utilizes is to install UV sensor at the position that track traffic insulating element is the weakest, the ultraviolet that UV sensor sends by detecting track traffic insulating element judges the existence of electric discharge or flame indirectly, and outputs signal to master system software processes analysis by what signal intensity was directly proportional。
Further, it is after UV sensor detects the ultraviolet that track traffic insulating element sends that the described electric discharge ultraviolet signal sent by track traffic insulating element is converted to voltage signal, electric discharge ultraviolet signal will be converted to voltage signal；Track traffic insulating element puncture before critical point first produce corona, Ultraviolet sensor is able to detect that less discharge pulse, and when there is arc discharge, electric discharge amplitude significantly improves, and increases in the same direction with electric pressure；Along with insulation breakdown increases, strength of discharge is gradually increased to tripping operation, discharge waveform amplitude is undergone mutation, whole process meets gas discharge evolution, the UV power that gas discharge produces can accurately be measured by Ultraviolet sensor, output quantization voltage signal, according to the threshold determination set by the state of insulation of test specimen。
Further, described by voltage signal through the filter and amplification of signal conditioning circuit and the Filtering Processing of software system be as signal collecting element using employing ultraviolet phototube, after UV sensor gathers signal, through signal condition and signal acquisition module, generate pulse signal, test completes signals collecting to ultraviolet pulse then through related algorithm, process through Signal-regulated kinase afterwards and upload to ftp server and upper computer software, upper computer analyzing software is arranged on ftp server, software receives the data file of UV corona detector by FTP mode, solve the data of new record, the image of component of detection is shown in host computer, and the ultraviolet light data of detection are shown intuitively with waveform。。
Further, the described statistics umber of pulse that is compared to from the threshold value set is that the ultraviolet corona sent according to track traffic insulating element adopts UV pulse method to demarcate in the intensity that each stage is different, and produce standard value, then the intensity of UV pulse method detection track traffic insulating element UV corona is adopted, compare with standard value again, judge that insulation of electrical installation damages the strength of discharge of position according to the dense degree of pulse。
It is an advantage of the current invention that:
The present invention utilizes the insulation situation of UV corona technology for detection track traffic insulating element, when the insulating properties of the insulating elements such as the insulator at track traffic insulating element reduce, increase if there is fault of construction or surface filth and humidity, corona and shelf depreciation will be produced, sustainable development can cause flashover and tripping operation to a certain extent, at this moment corona and surface shelf depreciation process can radiate the ultraviolet of specific band, the present invention arranges UV sensor by the most weak part at track traffic insulating element, utilize the intensity of UV pulse method detection UV corona, and by being compared to statistics umber of pulse with the threshold value set, thus judge the insulating properties of track traffic insulating element, there is non-contact detecting, insulation status can be forecast in advance, it is prevented effectively from and over-heated fault occurs。
Accompanying drawing explanation
Fig. 1 is that present system software controls schematic diagram。
Detailed description of the invention
The present invention is expanded on further below in conjunction with the drawings and specific embodiments。
Embodiment one
Be can be seen that by accompanying drawing 1, the present invention relates to a kind of method utilizing UV corona technology for detection track traffic insulating element, according to electrion feature, track traffic insulating element can send the feature of ultraviolet light before not yet damaging in running, the ultraviolet light sent by track traffic insulating element carries out classification, utilize the rank residing for ultraviolet light of discharging that UV sensor detection track traffic insulating element sends, judge the insulation status residing for track traffic insulating element, thus carrying out insulation status forecast before track traffic insulating element insulating properties are destroyed not yet completely, prevent track traffic insulating element from damaging。
Further, the described electric discharge utilizing UV sensor detection track traffic insulating element to send rank residing for ultraviolet light is to arrange UV sensor in the position that the insulation of track traffic insulating element is the weakest, the ultraviolet light in real time track traffic insulating element sent by UV sensor detects, and the electric discharge ultraviolet signal sent by track traffic insulating element is converted to voltage signal, again by voltage signal after the filter and amplification of signal conditioning circuit and the Filtering Processing of software system, it is compared to statistics umber of pulse with the threshold value set, dense degree according to pulse judges that insulation of electrical installation damages the strength of discharge of position。
Further, the described electric discharge ultraviolet light that Ultraviolet sensor detection track traffic insulating element sends that utilizes is to install UV sensor at the position that track traffic insulating element is the weakest, the ultraviolet that UV sensor sends by detecting track traffic insulating element judges the existence of electric discharge or flame indirectly, and outputs signal to master system software processes analysis by what signal intensity was directly proportional。
Further, it is after UV sensor detects the ultraviolet that track traffic insulating element sends that the described electric discharge ultraviolet signal sent by track traffic insulating element is converted to voltage signal, electric discharge ultraviolet signal will be converted to voltage signal；Track traffic insulating element puncture before critical point first produce corona, Ultraviolet sensor is able to detect that less discharge pulse, and when there is arc discharge, electric discharge amplitude significantly improves, and increases in the same direction with electric pressure；Along with insulation breakdown increases, strength of discharge is gradually increased to tripping operation, discharge waveform amplitude is undergone mutation, whole process meets gas discharge evolution, UV power gas discharge produced by Ultraviolet sensor is accurately measured, output quantization voltage signal, according to the threshold determination set by the state of insulation of test specimen。
Further, described by voltage signal through the filter and amplification of signal conditioning circuit and the Filtering Processing of software system be as signal collecting element using employing ultraviolet phototube, after UV sensor gathers signal, through signal condition and signal acquisition module, generate pulse signal, test completes signals collecting to ultraviolet pulse then through related algorithm, process through Signal-regulated kinase afterwards and upload to ftp server and upper computer software, upper computer analyzing software is arranged on ftp server, software receives the data file of UV corona detector by FTP mode, solve the data of new record, the image of component of detection is shown in host computer, and the ultraviolet light data of detection are shown intuitively with waveform。
Further, the described statistics umber of pulse that is compared to from the threshold value set is that the ultraviolet corona sent according to track traffic insulating element adopts UV pulse method to demarcate in the intensity that each stage is different, and produce standard value, then the intensity of UV pulse method detection track traffic insulating element UV corona is adopted, compare with standard value again, judge that insulation of electrical installation damages the strength of discharge of position according to the dense degree of pulse。
The concrete operation step of the present invention is (such as accompanying drawing 1):
1, opening power, instrument hardware proceeds by initialization；
2, starting hardware device self-inspection, if self-inspection does not pass through will send fault alarm, be concurrently out of order code；
If 3 self-inspections will be by data initialization, detecting LOOP, if measure loop (LOOP) finds that hardware anomalies will send failure code equally；
If 4 data initializations, detect LOOP no abnormality seen, detection instruction will be sent by host computer by serial ports or bluetooth, open detection button, resolve user instruction；
5, by the detection position of detection part needed for the Ultraviolet sensor of test instrunment and ultraviolet phototube alignment lens, Ultraviolet sensor and ultraviolet phototube camera lens ultraviolet signal and ADC are gathered；
6, collection ultraviolet signal and ADC are sent into processing module and carry out Digital Signal Processing；
7, the digital signal handled well and standard ultraviolet light are compared, and carry out Data Analysis Services by backstage；
8 but find data exception, beyond range of normal value, early warning will be carried out, and data will be recorded, carry out data transferring by teletransmission instrument simultaneously。
It is an advantage of the current invention that:
The present invention utilizes the insulation situation of UV corona technology for detection track traffic insulating element, when the insulating properties of the insulating elements such as the insulator at track traffic insulating element reduce, increase if there is fault of construction or surface filth and humidity, corona and shelf depreciation will be produced, sustainable development can cause flashover and tripping operation to a certain extent, at this moment corona and surface shelf depreciation process can radiate the ultraviolet of specific band, the present invention arranges UV sensor by the most weak part at track traffic insulating element, utilize the intensity of UV pulse method detection UV corona, and by being compared to statistics umber of pulse with the threshold value set, thus judge the insulating properties of track traffic insulating element, there is non-contact detecting, insulation status can be forecast in advance, it is prevented effectively from and over-heated fault occurs。
Claims (7)
1. the method utilizing UV corona technology for detection track traffic insulating element, it is characterized in that: track traffic insulating element can send the feature of ultraviolet light before not yet damaging in running, the ultraviolet light sent by track traffic insulating element carries out classification, utilize the rank residing for ultraviolet light of discharging that UV sensor detection track traffic insulating element sends, judge the insulation status residing for track traffic insulating element, thus carrying out insulation status forecast before track traffic insulating element insulating properties are destroyed not yet completely, prevent track traffic insulating element from damaging。
2. the method utilizing UV corona technology for detection track traffic insulating element as claimed in claim 1, it is characterized in that: the described electric discharge utilizing UV sensor detection track traffic insulating element to send rank residing for ultraviolet light is to arrange UV sensor in the position that the insulation of track traffic insulating element is the weakest, the ultraviolet light in real time track traffic insulating element sent by UV sensor detects, and the electric discharge ultraviolet signal sent by track traffic insulating element is converted to voltage signal, again by voltage signal after the filter and amplification of signal conditioning circuit and the Filtering Processing of software system, it is compared to statistics umber of pulse with the threshold value set, dense degree according to pulse judges that insulation of electrical installation damages the strength of discharge of position。
3. the method utilizing UV corona technology for detection track traffic insulating element as claimed in claim 2, it is characterized in that: the described electric discharge ultraviolet light that Ultraviolet sensor detection track traffic insulating element sends that utilizes is to install UV sensor at the position that track traffic insulating element is the weakest, the ultraviolet that UV sensor sends by detecting track traffic insulating element judges the existence of electric discharge or flame indirectly, and outputs signal to master system software processes analysis by what signal intensity was directly proportional。
4. the method utilizing UV corona technology for detection track traffic insulating element as claimed in claim 1, it is characterized in that: it is after UV sensor detects the ultraviolet that track traffic insulating element sends that the described electric discharge ultraviolet signal sent by track traffic insulating element is converted to voltage signal, electric discharge ultraviolet signal will be converted to voltage signal；Track traffic insulating element puncture before critical point first produce corona, Ultraviolet sensor is able to detect that less discharge pulse, and when there is arc discharge, electric discharge amplitude significantly improves, and increases in the same direction with electric pressure；Along with insulation breakdown increases, strength of discharge is gradually increased to tripping operation, discharge waveform amplitude is undergone mutation, whole process meets gas discharge evolution, the UV power that gas discharge produces can accurately be measured by Ultraviolet sensor, output quantization voltage signal, according to the threshold determination set by the state of insulation of test specimen。
5. the method utilizing UV corona technology for detection track traffic insulating element as claimed in claim 1, it is characterized in that: described by voltage signal through the filter and amplification of signal conditioning circuit and the Filtering Processing of software system be as signal collecting element using employing ultraviolet phototube, after UV sensor gathers signal, through signal condition and signal acquisition module, generate pulse signal, test completes signals collecting to ultraviolet pulse then through related algorithm, process through Signal-regulated kinase afterwards and upload to ftp server and upper computer software, upper computer analyzing software is arranged on ftp server, software receives the data file of UV corona detector by FTP mode, solve the data of new record, the image of component of detection is shown in host computer, and the ultraviolet light data of detection are shown intuitively with waveform。
6. the method utilizing UV corona technology for detection track traffic insulating element as claimed in claim 1, it is characterized in that: the described statistics umber of pulse that is compared to from the threshold value set is that the ultraviolet corona sent according to track traffic insulating element adopts UV pulse method to demarcate in the intensity that each stage is different, and produce standard value, then the intensity of UV pulse method detection track traffic insulating element UV corona is adopted, compare with standard value again, judge that insulation of electrical installation damages the strength of discharge of position according to the dense degree of pulse。
7. the method utilizing UV corona technology for detection track traffic insulating element as claimed in claim 1, it is characterised in that: the described ultraviolet light in real time track traffic insulating element sent by UV sensor carries out detection concrete operation step and is:
A. opening power, instrument hardware proceeds by initialization；
B. starting hardware device self-inspection, if self-inspection does not pass through will send fault alarm, be concurrently out of order code；
If C. self-inspection will be by data initialization, detecting LOOP, if measure loop (LOOP) finds that hardware anomalies will send failure code equally；
If D. data initialization, detect LOOP no abnormality seen, detection instruction will be sent by host computer by serial ports or bluetooth, open detection button, resolve user instruction；
E. by the detection position of detection part needed for the Ultraviolet sensor of test instrunment and ultraviolet phototube alignment lens, Ultraviolet sensor and ultraviolet phototube camera lens ultraviolet signal and ADC are gathered；
F. collection ultraviolet signal and ADC are sent into processing module and carry out Digital Signal Processing；
G. the digital signal handled well and standard ultraviolet light are compared, and carry out Data Analysis Services by backstage；
But discovery data exception, beyond range of normal value, will carry out early warning, and will record data, carry out data transferring by teletransmission instrument simultaneously。
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| CN201610095905.0A CN105699866B (en) | 2016-02-22 | 2016-02-22 | The method for detecting rail traffic insulating element using UV corona technology |
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| CN201610095905.0A CN105699866B (en) | 2016-02-22 | 2016-02-22 | The method for detecting rail traffic insulating element using UV corona technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866649A (en) * | 2016-06-28 | 2016-08-17 | 株洲壹星科技股份有限公司 | Method for detecting insulation performance of locomotive electrical equipment by ultraviolet corona |
| CN108181554A (en) * | 2017-12-13 | 2018-06-19 | 成都深蓝动力科技有限公司 | A kind of on-Line Monitor Device of motor insulation performance |
| WO2020103394A1 (en) * | 2018-11-19 | 2020-05-28 | 中国矿业大学 | Method for monitoring location of insulation damage of subway/coal-mine return track and transition resistance thereof |
| RU2737515C1 (en) * | 2020-02-21 | 2020-12-01 | федеральное государственное бюджетное образовательное учреждение высшего образования «Томский государственный университет систем управления и радиоэлектроники» | Method of controlling winding insulation defectiveness |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2767959C1 (en) * | 2021-03-12 | 2022-03-22 | федеральное государственное бюджетное образовательное учреждение высшего образования «Томский государственный университет систем управления и радиоэлектроники» | Method of controlling defectiveness of insulation of winding wires |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866649A (en) * | 2016-06-28 | 2016-08-17 | 株洲壹星科技股份有限公司 | Method for detecting insulation performance of locomotive electrical equipment by ultraviolet corona |
| CN108181554A (en) * | 2017-12-13 | 2018-06-19 | 成都深蓝动力科技有限公司 | A kind of on-Line Monitor Device of motor insulation performance |
| WO2020103394A1 (en) * | 2018-11-19 | 2020-05-28 | 中国矿业大学 | Method for monitoring location of insulation damage of subway/coal-mine return track and transition resistance thereof |
| US10962605B2 (en) | 2018-11-19 | 2021-03-30 | China University Of Mining And Technology | Method for detecting insulation damage location in reflux rail of subway/coal mine and transition resistance thereof |
| RU2737515C1 (en) * | 2020-02-21 | 2020-12-01 | федеральное государственное бюджетное образовательное учреждение высшего образования «Томский государственный университет систем управления и радиоэлектроники» | Method of controlling winding insulation defectiveness |
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| CN105699866B (en) | 2018-08-28 |
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