CN105157847A - Online accurate temperature measurement method and online accurate temperature measurement system for electric power equipment - Google Patents
Online accurate temperature measurement method and online accurate temperature measurement system for electric power equipment Download PDFInfo
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- CN105157847A CN105157847A CN201510401476.0A CN201510401476A CN105157847A CN 105157847 A CN105157847 A CN 105157847A CN 201510401476 A CN201510401476 A CN 201510401476A CN 105157847 A CN105157847 A CN 105157847A
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Abstract
The invention discloses an online accurate temperature measurement method and an online accurate temperature measurement system for electric power equipment. Online infrared imaging temperature measurement instrument is employed to measure temperature of the electric power equipment, temperature, wind speed and humidity sensors are mounted around the electric power equipment, and normalization processing on environment conditions is carried out; a current heating equipment, temperature measured under the condition of low temperature is converted to temperature under the 20 DEG C condition, and heat radiation influence caused by wind speed is further converted. According to the method and the system, under the condition of the practical present environment climate, normalization correction on the temperature measurement data of the electric power equipment is carried out, influence of an environment climate factor is converted, and accurate measurement on temperature of crucial parts of the electric power equipment is realized.
Description
Technical field
The present invention relates to a kind of power equipment temp measuring method and system, the online accurate temperature measurement method of especially a kind of power equipment and temp measuring system.
Background technology
Existing power equipment infrared measurement of temperature mainly contains as under type: 1, adopt handheld thermometer; 2, intelligent robot is adopted; 3, online monitoring.Handheld thermometer, personnel specialty of being taken pictures quality, environmental influence are serious, and can not monitoring electrical equipment running status in real time, and temperature measurement data truly cannot reflect the state of equipment under certain environmental conditions; Intelligent robot thermometric not only affects by amblent air temperature, wants accurate positioning equipment to detect position simultaneously and also has problems; Present Domestic is outer to be carried out about online infrared measurement of temperature monitoring, but thermometric mode is rough, does not reach the object of power equipment key position accurate temperature measurement.And these temperature sensing meanses are confined to thermal map candid photograph, ex-post analysis more or are confined to the thermometric object thermometric of same picture fixed qty.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of minimizing to affect by amblent air temperature factor, realize the thermometric of real-time video full frame and observed temperature can reflect the online accurate temperature measurement method of the power equipment of the true running status of equipment and temp measuring system, thus overcome above-mentioned the deficiencies in the prior art.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of online accurate temperature measurement method of power equipment, the method adopts the temperature of online infrared imaging temperature measuring instrument to power equipment to measure, and near power equipment, install temperature, wind speed and humidity sensor, is normalized environmental baseline; Current caused hot type equipment, be the temperature of 20 DEG C to temperature by the temperature recorded under low temperature conversion, convert the heat radiation impact that wind speed causes, formula is as follows: T simultaneously
20=β T
s+ (20 – T
0)/α
2, wherein: T
20for conversion is to equipment connection point overtemperature (DEG C) when 20 DEG C, T
sfor apparatus overheat point temperature (DEG C) during test, T
0for environment temperature (DEG C) during test, α is temperature conversion factor, and β is wind speed conversion factor.
The online accurate temperature measurement system of a kind of power equipment, the formation of this system comprises online infrared imaging temperature measuring instrument, A/D converter and supervisory control comuter, online infrared imaging temperature measuring instrument is used for the power equipment infrared chart of shot detection point, and the infrared chart simulating signal that the infrared chart that output packet contains measured temperature is correlated with; A/D converter is used for the infrared chart simulating signal that online infrared imaging temperature measuring instrument exports being transformed to infrared digital signal and passing to supervisory control comuter; Online infrared imaging temperature measuring instrument connects A/D converter, and A/D converter is connected with supervisory control comuter; Temperature sensors of high precision, air velocity transducer and humidity sensor are installed near the power equipment of check point, environmental baseline is normalized.
In the online accurate temperature measurement system of above-mentioned power equipment, online infrared imaging temperature measuring instrument is pan and tilt head binocular camera, has a visible channel and an infrared channel, can take infrared chart and the visible images of power equipment simultaneously.
Beneficial effect of the present invention: compared with prior art, present invention achieves the technological breakthrough that current infrared measurement of temperature can only be confined to the point for measuring temperature of limited quantity or the thermal imagine analysis of single point in time, can in real time according to current environment climatic condition, correction is normalized to the temperature measurement data of power equipment, reduce and affect by amblent air temperature factor, reach the object to power equipment key position accurate temperature measurement, and achieve the thermometric analysis expert of real-time video full frame, for the real-time monitoring of status of electric power, Real Time Expert analysis or shared video consultation provide effective technical support and technological breakthrough.
Accompanying drawing explanation
Fig. 1 is structural principle block diagram of the present invention;
Fig. 2 is principle of work schematic diagram of the present invention.
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
Embodiment
Embodiment 1.As shown in Figure 1, comprise online infrared imaging temperature measuring instrument, A/D converter and supervisory control comuter, online infrared imaging temperature measuring instrument is used for the power equipment infrared chart of shot detection point, and the infrared chart simulating signal that the infrared chart that output packet contains measured temperature is correlated with; A/D converter is used for the infrared chart simulating signal that online infrared imaging temperature measuring instrument exports being transformed to infrared digital signal and passing to supervisory control comuter; Online infrared imaging temperature measuring instrument connects A/D converter, and A/D converter is connected with supervisory control comuter; Temperature sensors of high precision, air velocity transducer and humidity sensor are installed near the power equipment of check point, environmental baseline is normalized.For current caused hot type equipment, can be the temperature of 20 DEG C to temperature by the temperature recorded under low temperature conversion, convert the heat radiation impact that wind speed causes, formula be as follows: T simultaneously
20=β T
s+ (20 – T
0)/α
2, wherein: T
20for conversion is to equipment connection point overtemperature (DEG C) when 20 DEG C, T
sfor apparatus overheat point temperature (DEG C) during test, T
0for environment temperature (DEG C) during test, α is temperature conversion factor, and β is wind speed conversion factor.Online infrared imaging temperature measuring instrument adopts pan and tilt head binocular camera, has a visible channel and an infrared channel, can take infrared chart and the visible images of power equipment simultaneously.
Principle of work: as shown in Figure 2, online infrared imaging temperature measuring instrument 1 is in the process of transmission infrared video code stream 2, carry full video temperature measurement data 3 simultaneously, realize to carry out the analysis of line temperature, isothermal analysis, temperature gradient distributional analysis and maximum sustained load heat spot temperature analysis to electric device maintenance position on real-time video, also temperature measurement data can be carried out together with video data video recording to store, the line temperature analysis carrying out electric device maintenance position by recording a video, isothermal analysis, temperature gradient distributional analysis and maximum sustained load heat spot temperature analysis.
Claims (3)
1. the online accurate temperature measurement method of power equipment, it is characterized in that: adopt the temperature of online infrared imaging temperature measuring instrument to power equipment to measure, and temperature, wind speed and humidity sensor are installed near power equipment, environmental baseline is normalized; Current caused hot type equipment, be the temperature of 20 DEG C to temperature by the temperature recorded under low temperature conversion, convert the heat radiation impact that wind speed causes, formula is as follows: T simultaneously
20=β T
s+ (20 – T
0)/α
2, wherein: T
20for conversion is to equipment connection point overtemperature when 20 DEG C, T
sfor apparatus overheat point temperature during test, T
0for environment temperature during test, α is temperature conversion factor, and β is wind speed conversion factor.
2. the online accurate temperature measurement system of power equipment, comprise online infrared imaging temperature measuring instrument, A/D converter and supervisory control comuter, it is characterized in that: described online infrared imaging temperature measuring instrument is used for the power equipment infrared chart of shot detection point, and the infrared chart simulating signal that the infrared chart that output packet contains measured temperature is correlated with; A/D converter is used for the infrared chart simulating signal that online infrared imaging temperature measuring instrument exports being transformed to infrared digital signal and passing to supervisory control comuter; Online infrared imaging temperature measuring instrument connects A/D converter, and A/D converter is connected with supervisory control comuter; Temperature sensors of high precision, air velocity transducer and humidity sensor are installed near the power equipment of check point.
3. the online accurate temperature measurement system of power equipment according to claim 2, it is characterized in that: described online infrared imaging temperature measuring instrument is pan and tilt head binocular camera, there are a visible channel and an infrared channel, infrared chart and the visible images of power equipment can be taken simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401476.0A CN105157847B (en) | 2015-07-10 | 2015-07-10 | A kind of online accurate temp measuring method of power equipment and temp measuring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510401476.0A CN105157847B (en) | 2015-07-10 | 2015-07-10 | A kind of online accurate temp measuring method of power equipment and temp measuring system |
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| CN105157847A true CN105157847A (en) | 2015-12-16 |
| CN105157847B CN105157847B (en) | 2018-06-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111506093A (en) * | 2020-04-09 | 2020-08-07 | 陕西省地方电力(集团)有限公司延安供电分公司 | Unmanned aerial vehicle-based power inspection system and method |
| CN111631597A (en) * | 2020-06-18 | 2020-09-08 | 广东美的厨房电器制造有限公司 | Cooking appliance, control method and computer-readable storage medium |
| US20210096028A1 (en) * | 2019-09-30 | 2021-04-01 | State Grid Shandong Electric Power Research Institute | Live detection system, method, and thermal infrared imager for power grid equipment |
| WO2021063062A1 (en) * | 2019-09-30 | 2021-04-08 | 国网山东省电力公司电力科学研究院 | Live-line testing system for power grid apparatus, thermal infrared imager, and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159581A (en) * | 1988-12-13 | 1990-06-19 | Tokyo Electric Power Co Inc:The | Judging method of deterioration of insulation of insulator |
| JPH11272343A (en) * | 1998-03-19 | 1999-10-08 | Toshiba Corp | Isothermal performance inspecting device/method for stabilized power source |
| CN102721479A (en) * | 2012-04-16 | 2012-10-10 | 沈阳华岩电力技术有限公司 | Online monitoring method for temperature rise of outdoor electrical device |
| CN203337262U (en) * | 2013-05-31 | 2013-12-11 | 韩忠健 | On-line imaging temperature measurement and detection system based on infrared technology |
| CN203519173U (en) * | 2013-04-12 | 2014-04-02 | 天津瑞能电气有限公司 | Automatic recording device for temperature data of wind power frequency converter |
-
2015
- 2015-07-10 CN CN201510401476.0A patent/CN105157847B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02159581A (en) * | 1988-12-13 | 1990-06-19 | Tokyo Electric Power Co Inc:The | Judging method of deterioration of insulation of insulator |
| JPH11272343A (en) * | 1998-03-19 | 1999-10-08 | Toshiba Corp | Isothermal performance inspecting device/method for stabilized power source |
| CN102721479A (en) * | 2012-04-16 | 2012-10-10 | 沈阳华岩电力技术有限公司 | Online monitoring method for temperature rise of outdoor electrical device |
| CN203519173U (en) * | 2013-04-12 | 2014-04-02 | 天津瑞能电气有限公司 | Automatic recording device for temperature data of wind power frequency converter |
| CN203337262U (en) * | 2013-05-31 | 2013-12-11 | 韩忠健 | On-line imaging temperature measurement and detection system based on infrared technology |
Non-Patent Citations (1)
| Title |
|---|
| 马继先等: "影响电力设备红外检测准确性因素的分析研究", 《华北电力技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210096028A1 (en) * | 2019-09-30 | 2021-04-01 | State Grid Shandong Electric Power Research Institute | Live detection system, method, and thermal infrared imager for power grid equipment |
| WO2021063062A1 (en) * | 2019-09-30 | 2021-04-08 | 国网山东省电力公司电力科学研究院 | Live-line testing system for power grid apparatus, thermal infrared imager, and method |
| US11953379B2 (en) * | 2019-09-30 | 2024-04-09 | State Grid Shandong Electric Power Research Institute | Live detection system, method, and thermal infrared imager for power grid equipment |
| CN111506093A (en) * | 2020-04-09 | 2020-08-07 | 陕西省地方电力(集团)有限公司延安供电分公司 | Unmanned aerial vehicle-based power inspection system and method |
| CN111631597A (en) * | 2020-06-18 | 2020-09-08 | 广东美的厨房电器制造有限公司 | Cooking appliance, control method and computer-readable storage medium |
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| Publication number | Publication date |
|---|---|
| CN105157847B (en) | 2018-06-22 |
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