CN112798111A - Hot spot detection method for photovoltaic panel - Google Patents
Hot spot detection method for photovoltaic panel Download PDFInfo
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- CN112798111A CN112798111A CN202011605219.6A CN202011605219A CN112798111A CN 112798111 A CN112798111 A CN 112798111A CN 202011605219 A CN202011605219 A CN 202011605219A CN 112798111 A CN112798111 A CN 112798111A
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 238000001931 thermography Methods 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 238000007689 inspection Methods 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 8
- 238000013480 data collection Methods 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 5
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000010405 clearance mechanism Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0096—Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
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- B08B1/12—
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0066—Radiation pyrometry, e.g. infrared or optical thermometry for hot spots detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
Abstract
The invention discloses a hot spot detection method for a photovoltaic panel, which comprises the following steps: the detection device is fixed on a mounting frame of the photovoltaic panel, a temperature acquisition sensor is arranged in the detection device, and the surface temperature of the photovoltaic panel is detected and collected through the temperature acquisition sensor; the cleaning mechanism is arranged on the inspection device, and can be used for cleaning the surface of the photovoltaic panel, so that the accuracy of temperature detection is improved; data acquisition, namely detecting the temperature of the surface of the photovoltaic panel at each time interval through a temperature acquisition sensor in the inspection device and storing the acquired data; and the console server is used for packaging the data and sending the data to the console server through a wireless network after the data is collected. According to the invention, whether hot spots exist is detected by comparing the independently collected photovoltaic panel temperature with the thermal imaging diagram, so that the hot spot detection accuracy is improved.
Description
Technical Field
The invention relates to the technical field of hot spot detection of photovoltaic panels, in particular to a hot spot detection method of a photovoltaic panel.
Background
Photovoltaic panel assemblies are electrical power generating devices that produce direct current electricity when exposed to sunlight and are comprised of thin solid photovoltaic cells made almost entirely of semiconductor materials such as silicon. The photoelectric conversion efficiency and the reliability are high; advanced diffusion technology ensures the uniformity of conversion efficiency at each position in the chip; good conductivity, reliable adhesion and good electrode weldability are ensured; high precision screen printing patterns and high flatness, so that the battery is easy to automatically weld and laser cut.
The shading of house shadows, leaves and even bird droppings on the photovoltaic module can cause great influence on the power generation system. The electrical characteristics of the solar cells used in each module are basically consistent, otherwise, the so-called hot spot effect is generated on the cells with poor electrical performance or blocked, most of the existing detection methods adopt a thermal imaging technology for detection, and the detection method is used for large-scale detection with relatively large error.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a hot spot detection method for a photovoltaic panel.
The invention provides a hot spot detection method for a photovoltaic panel, which comprises the following steps:
s1: the detection device is fixed on a mounting frame of the photovoltaic panel, a temperature acquisition sensor is arranged in the detection device, and the surface temperature of the photovoltaic panel is detected and collected through the temperature acquisition sensor;
s2: the cleaning mechanism is arranged on the inspection device, and can be used for cleaning the surface of the photovoltaic panel, so that the accuracy of temperature detection is improved;
s3: data acquisition, namely detecting the temperature of the surface of the photovoltaic panel at each time interval through a temperature acquisition sensor in the inspection device and storing the acquired data;
s4: the console server packages the data after data acquisition and sends the data to the console server through a wireless network, and the data is manufactured into a line graph form through analysis processing of the server and stored in the server, so that the data of the surface temperature of each photovoltaic panel can be conveniently taken at any time;
s5: the alarm mechanism is connected to the console server, and once the temperature of the surface of the photovoltaic panel is abnormally high in a certain period of time, the server immediately carries out alarm reminding through the alarm mechanism after receiving data and informs workers of carrying out maintenance in time;
s6: thermal imaging collection, namely carrying a thermal imaging detector by the unmanned aerial vehicle to carry out thermal imaging detection on the photovoltaic panel when the alarm mechanism is started, and then transmitting an image to the console through a wireless network;
s7: and data comparison, namely comparing the temperature of the surface of the photovoltaic panel collected by the temperature collecting sensor with the thermal imaging image, and then determining whether the light spot is formed.
Preferably, detection device carries out comprehensive collection to photovoltaic board surface temperature through electronic drive temperature acquisition sensor including fixing the electronic slide rail on the photovoltaic board mounting bracket.
Preferably, clearance mechanism includes motor and clearance dish brush, and clearance mechanism moves along with temperature acquisition sensor's removal, and then comprehensive dust to photovoltaic board surface clears up, prevents that the dust from blockking the normal collection of temperature.
Preferably, the data collection includes a wireless transmission mechanism and a memory, the collected data can be stored in the memory for a short time, and when the data collection is completed, the data is transmitted to the console server through the wireless transmission mechanism.
Preferably, the alarm mechanism comprises an audible and visual alarm, and the console controls whether the audible and visual alarm gives an alarm or not according to the received temperature data.
Preferably, thermal imaging gathers through converting into thermal imaging picture to photovoltaic board surface temperature, can audio-visually understand which position temperature of photovoltaic board is too high through thermal imaging picture, and the temperature of gathering in combination temperature acquisition sensor compares, can confirm whether the facula forms.
The beneficial effects of the invention are as follows:
1. according to the photovoltaic panel hot spot detection method, the detection device corresponding to each photovoltaic panel is arranged on each photovoltaic panel, the temperature of the surface of each photovoltaic panel is comprehensively collected through the temperature collection sensor in the detection device, and errors in temperature collection are effectively reduced.
2. According to the photovoltaic panel hot spot detection method, the cleaning mechanism is arranged on the detection device, dust on the surface of the photovoltaic panel is conveniently cleaned through the cleaning mechanism, and the dust is prevented from influencing the accuracy of thermal imaging collection.
3. According to the photovoltaic panel hot spot detection method, whether hot spots exist or not is detected by comparing the independently collected photovoltaic panel temperature with the thermal imaging diagram, and the hot spot detection accuracy is improved.
Drawings
Fig. 1 is a schematic diagram of a hot spot detection method for a photovoltaic panel according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a hot spot detection method for a photovoltaic panel includes the following steps:
s1: the detection device is fixed on a mounting frame of the photovoltaic panel, a temperature acquisition sensor is arranged in the detection device, and the surface temperature of the photovoltaic panel is detected and collected through the temperature acquisition sensor;
s2: the cleaning mechanism is arranged on the inspection device, and can be used for cleaning the surface of the photovoltaic panel, so that the accuracy of temperature detection is improved;
s3: data acquisition, namely detecting the temperature of the surface of the photovoltaic panel at each time interval through a temperature acquisition sensor in the inspection device and storing the acquired data;
s4: the console server packages the data after data acquisition and sends the data to the console server through a wireless network, and the data is manufactured into a line graph form through analysis processing of the server and stored in the server, so that the data of the surface temperature of each photovoltaic panel can be conveniently taken at any time;
s5: the alarm mechanism is connected to the console server, and once the temperature of the surface of the photovoltaic panel is abnormally high in a certain period of time, the server immediately carries out alarm reminding through the alarm mechanism after receiving data and informs workers of carrying out maintenance in time;
s6: thermal imaging collection, namely carrying a thermal imaging detector by the unmanned aerial vehicle to carry out thermal imaging detection on the photovoltaic panel when the alarm mechanism is started, and then transmitting an image to the console through a wireless network;
s7: and data comparison, namely comparing the temperature of the surface of the photovoltaic panel collected by the temperature collecting sensor with the thermal imaging image, and then determining whether the light spot is formed.
In the invention, the detection device comprises an electric slide rail fixed on a photovoltaic panel mounting rack, the surface temperature of the photovoltaic panel is comprehensively collected by electrically driving a temperature collection sensor, a cleaning mechanism comprises a motor and a cleaning disc brush, the cleaning mechanism moves along with the movement of the temperature collection sensor so as to comprehensively clean dust on the surface of the photovoltaic panel and prevent the dust from blocking the normal collection of temperature, the data collection comprises a wireless transmitting mechanism and a memory, the collected data can be temporarily stored in the memory, when the data collection is completed, the data is transmitted to a console server through the wireless transmitting mechanism, an alarm mechanism comprises an audible and visual alarm, the console controls the audible and visual alarm to give an alarm according to the received temperature data, the thermal imaging collection converts the surface temperature of the photovoltaic panel into a thermal imaging graph, and the over-high temperature of the photovoltaic panel can be intuitively known through the thermal imaging graph, and comparing the temperature collected by the temperature collecting sensor to determine whether the light spot is formed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A hot spot detection method for a photovoltaic panel is characterized by comprising the following steps:
s1: the detection device is fixed on a mounting frame of the photovoltaic panel, a temperature acquisition sensor is arranged in the detection device, and the surface temperature of the photovoltaic panel is detected and collected through the temperature acquisition sensor;
s2: the cleaning mechanism is arranged on the inspection device, and can be used for cleaning the surface of the photovoltaic panel, so that the accuracy of temperature detection is improved;
s3: data acquisition, namely detecting the temperature of the surface of the photovoltaic panel at each time interval through a temperature acquisition sensor in the inspection device and storing the acquired data;
s4: the console server packages the data after data acquisition and sends the data to the console server through a wireless network, and the data is manufactured into a line graph form through analysis processing of the server and stored in the server, so that the data of the surface temperature of each photovoltaic panel can be conveniently taken at any time;
s5: the alarm mechanism is connected to the console server, and once the temperature of the surface of the photovoltaic panel is abnormally high in a certain period of time, the server immediately carries out alarm reminding through the alarm mechanism after receiving data and informs workers of carrying out maintenance in time;
s6: thermal imaging collection, namely carrying a thermal imaging detector by the unmanned aerial vehicle to carry out thermal imaging detection on the photovoltaic panel when the alarm mechanism is started, and then transmitting an image to the console through a wireless network;
s7: and data comparison, namely comparing the temperature of the surface of the photovoltaic panel collected by the temperature collecting sensor with the thermal imaging image, and then determining whether the light spot is formed.
2. The method according to claim 1, wherein the detection device comprises an electric slide rail fixed on the photovoltaic panel mounting frame, and the surface temperature of the photovoltaic panel is comprehensively collected by an electric drive temperature collection sensor.
3. The method for detecting the hot spots of the photovoltaic panel as claimed in claim 1, wherein the cleaning mechanism comprises a motor and a cleaning disc brush, and the cleaning mechanism moves along with the movement of the temperature collecting sensor, so as to comprehensively clean the dust on the surface of the photovoltaic panel and prevent the dust from blocking the normal collection of the temperature.
4. The method for detecting hot spots of photovoltaic panels as claimed in claim 1, wherein the data collection comprises a wireless transmission mechanism and a memory, the collected data can be stored in the memory for a short time, and when the data collection is completed, the data is transmitted to the console server through the wireless transmission mechanism.
5. The method for detecting the hot spot of the photovoltaic panel as claimed in claim 1, wherein the alarm mechanism comprises an audible and visual alarm, and the console controls whether the audible and visual alarm gives an alarm according to the received temperature data.
6. The method for detecting hot spots of the photovoltaic panel as claimed in claim 1, wherein the thermal imaging collection is performed by converting the surface temperature of the photovoltaic panel into a thermal imaging graph, which can visually know which position of the photovoltaic panel has too high temperature through the thermal imaging graph, and the formation of the hot spots can be determined by comparing the temperatures collected by the temperature collection sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605219.6A CN112798111A (en) | 2020-12-30 | 2020-12-30 | Hot spot detection method for photovoltaic panel |
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| CN202011605219.6A CN112798111A (en) | 2020-12-30 | 2020-12-30 | Hot spot detection method for photovoltaic panel |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214388A (en) * | 2010-04-07 | 2011-10-12 | 无锡隆玛科技有限公司 | Data monitoring device for solar photovoltaic power generation system |
| CN103605369A (en) * | 2013-11-22 | 2014-02-26 | 航天科工深圳（集团）有限公司 | Solar cell assembly hot spot monitoring system and method based on unmanned plane |
| CN106227215A (en) * | 2016-08-31 | 2016-12-14 | 宁波易拓智谱机器人有限公司 | Robot automatic photovoltaic module purging system and cleaning method thereof |
| CN209512915U (en) * | 2018-12-21 | 2019-10-18 | 中国计量大学 | A kind of device positioned for meteorological and hot spot temperature detection and hot spot |
| CN111739002A (en) * | 2020-06-17 | 2020-10-02 | 中电投新疆能源化工集团哈密有限公司 | Photovoltaic module inspection method and system |
| CN111766246A (en) * | 2020-06-23 | 2020-10-13 | 海容(无锡)能源科技有限公司 | Photovoltaic module inspection method and system |
| CN211905127U (en) * | 2020-03-27 | 2020-11-10 | 青海新能源(集团)有限公司 | Hot spot monitoring device for solar photovoltaic panel |
-
2020
- 2020-12-30 CN CN202011605219.6A patent/CN112798111A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214388A (en) * | 2010-04-07 | 2011-10-12 | 无锡隆玛科技有限公司 | Data monitoring device for solar photovoltaic power generation system |
| CN103605369A (en) * | 2013-11-22 | 2014-02-26 | 航天科工深圳（集团）有限公司 | Solar cell assembly hot spot monitoring system and method based on unmanned plane |
| CN106227215A (en) * | 2016-08-31 | 2016-12-14 | 宁波易拓智谱机器人有限公司 | Robot automatic photovoltaic module purging system and cleaning method thereof |
| CN209512915U (en) * | 2018-12-21 | 2019-10-18 | 中国计量大学 | A kind of device positioned for meteorological and hot spot temperature detection and hot spot |
| CN211905127U (en) * | 2020-03-27 | 2020-11-10 | 青海新能源(集团)有限公司 | Hot spot monitoring device for solar photovoltaic panel |
| CN111739002A (en) * | 2020-06-17 | 2020-10-02 | 中电投新疆能源化工集团哈密有限公司 | Photovoltaic module inspection method and system |
| CN111766246A (en) * | 2020-06-23 | 2020-10-13 | 海容(无锡)能源科技有限公司 | Photovoltaic module inspection method and system |
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Effective date of registration: 20210527 Address after: No.246 Xiqing Road, Xiqing District, Tianjin 300380 Applicant after: HUANONG YANGLIUQING THERMOELEC Address before: No.246 Xiqing Road, Xiqing District, Tianjin 300380 Applicant before: Zhao Xu |
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