CN208675191U - Photovoltaic hot spot effect detection system based on power swing monitoring - Google Patents
Photovoltaic hot spot effect detection system based on power swing monitoring Download PDFInfo
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- CN208675191U CN208675191U CN201821560682.1U CN201821560682U CN208675191U CN 208675191 U CN208675191 U CN 208675191U CN 201821560682 U CN201821560682 U CN 201821560682U CN 208675191 U CN208675191 U CN 208675191U
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- China
- Prior art keywords
- unmanned plane
- main control
- control unit
- photovoltaic
- hot spot
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model provides a kind of photovoltaic hot spot effect detection system based on power swing monitoring, voltage and current acquisition unit monitors photovoltaic power fluctuation, the photovoltaic panel location information that power swing is more than threshold value is sent to the main control unit of unmanned plane by remote monitoring center, main control unit controls unmanned plane by flight control units and flies to destination, the photovoltaic cell surface temperature information of acquisition is transmitted to main control unit by image acquisition units, main control unit judges whether that hot spot effect occurs, if so, then controlling unmanned plane hovering；The current geographical location information of unmanned plane is transmitted to main control unit by GPS positioning unit, then passes remote control center back by communication unit, waits related personnel's processing.The utility model energy is more efficient, faster detects hot spot；Unmanned plane only detect power swing be greater than threshold value just start, improve the cruising ability of unmanned plane；And unmanned plane hovering is facilitated look in the air, and related personnel is allowed faster to determine position of failure point.
Description
Technical field
The utility model relates to a kind of photovoltaic hot spot effect detection systems based on power swing monitoring.
Background technique
Solar module is typically mounted on that region is open, sun-drenched area.It inevitably falls and flies in long-term use
The shelters such as bird, dust, fallen leaves, these shelters are formed shade on solar module, in large-scale solar panel
Line space is not suitable for also forming shade mutually in part square matrix.Due to the presence of local shades, certain electricity in solar module
Electric current, the voltage of pond monolithic are changed.Its result increases the product of solar module local current and voltage, thus
Local temperature rise is produced on these battery components.Certain battery monomers defect itself is it is also possible that component exists in solar module
Local pyrexia when work, this phenomenon is " hot spot effect ".
In actual use solar cell, if the temperature that hot spot effect generates has been more than that certain limit will make battery component
On solder joint melt and damage grid line, so as to cause scrapping for entire solar module.According to external authority's statistics, hot spot effect
The actual life of solar module is set at least to reduce 10%.
Hot spot phenomenon is inevitable, although solar module will consider the influence of shade when installing, and is added and is matched
Protective device is to reduce the influence of hot spot.It, need to be by reasonable to guarantee that solar cell can be used for a long time under the defined conditions
Time and process solar module is detected, determine its bear hot spot heating effect ability.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of photovoltaic hot spot effect inspections based on power swing monitoring
Examining system locks the position of the doubtful photovoltaic cell for generating hot spot, then passes through nothing by monitoring the power swing of photovoltaic cell
Whether this position of man-machine determination generates hot spot.
To solve the above-mentioned problems, technical solution to be solved in the utility model are as follows: the photovoltaic based on power swing monitoring
Hot spot effect detection system, including voltage and current acquisition unit, remote monitoring center, main control unit, communication unit, flight control
Unit, image acquisition units and GPS positioning unit, photovoltaic panel location information of the remote monitoring center by power swing more than threshold value
It is sent to the main control unit of unmanned plane, main control unit controls unmanned plane by flight control units and flies to destination, reaches mesh
Place after, the photovoltaic cell surface temperature information of acquisition is transmitted to main control unit by image acquisition units, main control unit judgement
Whether hot spot effect is occurred, if so, then controlling unmanned plane hovering；The GPS positioning unit geographical location information that unmanned plane is current
It is transmitted to main control unit, then remote control center is passed back by communication unit, waits related personnel's processing.
The voltage and current acquisition unit is mounted in photovoltaic panel, for monitoring photovoltaic power fluctuation.
The remote monitoring center calculates whether the power swing of photovoltaic cell is more than threshold by the voltage and current acquired
Value, and the photovoltaic cell location information that power swing is more than threshold value is sent to unmanned plane.
The main control unit is mounted on unmanned plane, for handling image information and judging whether photovoltaic panel local height occurs
Temperature, when there is localized hyperthermia, main control unit controls unmanned plane hovering by flight control units.
The communication unit is mounted on unmanned plane, and main control unit is realized wireless by communication unit and remote monitoring center
Communication.
The technical effect of the utility model are as follows: (1) realize simply, need to only measure the voltage and current of photovoltaic cell；
(2) unmanned plane is not necessarily to each piece of photovoltaic cell of inspection, and energy is more efficient, faster detects hot spot；
(3) unmanned plane only detect power swing be greater than threshold value just start, improve the cruising ability of unmanned plane；
(4) unmanned plane hovering is facilitated look in the air, and related personnel is allowed faster to determine position of failure point.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawing:
Fig. 1 is the topological structure schematic diagram of the utility model.
The system flow chart of the position Fig. 2 the utility model.
In figure: 1. voltage and current acquisition units, 2. remote monitoring centers, 3. main control units, 4. communication units, 5. flight controls
Unit processed, 6. image acquisition units, 7.GPS positioning unit.
Specific embodiment
As shown in Figure 1, the photovoltaic hot spot effect detection system based on power swing monitoring, including voltage and current acquisition unit
1, remote monitoring center 2, main control unit 3, communication unit 4, flight control units 5, image acquisition units 6 and GPS positioning unit
7, the photovoltaic panel location information that power swing is more than threshold value is sent to the main control unit 3 of unmanned plane, master control by remote monitoring center 2
Unit 3 controls unmanned plane by flight control units 5 and flies to destination, and after arriving at the destination a little, image acquisition units 6 will be adopted
The photovoltaic cell surface temperature information of collection is transmitted to main control unit 3, and main control unit 3 judges whether that hot spot effect occurs, if so, then
Control unmanned plane hovering；The current geographical location information of unmanned plane is transmitted to main control unit 3 by GPS positioning unit 7, then is passed through
Communication unit 4 passes remote control center 2 back, waits related personnel's processing.
The voltage and current acquisition unit 1 is mounted in photovoltaic panel, for monitoring photovoltaic power fluctuation.
The remote monitoring center 2 calculates whether the power swing of photovoltaic cell is more than threshold by the voltage and current acquired
Value, and the photovoltaic cell location information that power swing is more than threshold value is sent to unmanned plane.Unmanned plane is only detecting power waves
The dynamic threshold value that is greater than just starts, and improves the cruising ability of unmanned plane
The main control unit 3 is mounted on unmanned plane, for handling image information and judging whether photovoltaic panel part occurs
High temperature, when there is localized hyperthermia, main control unit 3 controls unmanned plane hovering by flight control units 5.Unmanned plane hovers in sky
In facilitate look at, allow related personnel faster determine position of failure point.
The communication unit 4 is mounted on unmanned plane, and main control unit 3 is realized by communication unit 4 and remote monitoring center 2
Wireless communication.
Infrared thermal imager can be used in image acquisition units 6.
Photovoltaic hot spot effect detection system working principle based on power swing monitoring:
The power that photovoltaic cell issues changes, variable quantity △ with the variation of extraneous intensity of illumination and temperaturePIt can indicate
For
△P = (I + △I )(U + △U)–IU = I△U + U△I+ △I△U
It is sufficiently small when the sampling time, △ can be ignoredI△U, i.e. △PIt is approximately equal to I △ U+U △ I, under normal circumstances,
Since temperature and intensity of illumination will not mutate, so △PIt is typically small.When blocking generation hot spot effect, one connects
Shielded photovoltaic cell in branch can become power consuming units from generator unit, and shielded photovoltaic cell is not only defeated to component
It haunts and contributes, and the electric power that other batteries generate can be consumed, the output power from photovoltaic cells can become smaller suddenly at this time, that is, change
Measure △PBecome larger.It therefore, can be by setting suitable threshold value, as the △ being calculatedP When more than threshold value, that is, illustrate that heat occurs
Spot effect.To exclude chugging caused by other reasons, checked using unmanned plane.
Claims (5)
1. the photovoltaic hot spot effect detection system based on power swing monitoring, it is characterised in that: including voltage and current acquisition unit
(1), remote monitoring center (2), main control unit (3), communication unit (4), flight control units (5), image acquisition units (6) and
The photovoltaic panel location information that power swing is more than threshold value is sent to unmanned plane by GPS positioning unit (7), remote monitoring center (2)
Main control unit (3), main control unit (3) controls unmanned plane by flight control units (5) and flies to destination, arrive at the destination
After point, the photovoltaic cell surface temperature information of acquisition is transmitted to main control unit (3) by image acquisition units (6), main control unit (3)
Judge whether that hot spot effect occurs, if so, then controlling unmanned plane hovering；GPS positioning unit (7) geography that unmanned plane is current
Location information is transmitted to main control unit (3), then is passed back remote monitoring center (2) by communication unit (4), is waited at related personnel
Reason.
2. the photovoltaic hot spot effect detection system according to claim 1 based on power swing monitoring, it is characterised in that: institute
It states voltage and current acquisition unit (1) to be mounted in photovoltaic panel, for monitoring photovoltaic power fluctuation.
3. the photovoltaic hot spot effect detection system according to claim 1 based on power swing monitoring, it is characterised in that: institute
It states remote monitoring center (2) and calculates whether the power swing of photovoltaic cell is more than threshold value by the voltage and current acquired, and will
Power swing is more than that the photovoltaic cell location information of threshold value is sent to unmanned plane.
4. the photovoltaic hot spot effect detection system according to claim 1 based on power swing monitoring, it is characterised in that: institute
It states main control unit (3) to be mounted on unmanned plane, for handling image information and judging whether photovoltaic panel localized hyperthermia occurs, when out
Main control unit (3) controls unmanned plane hovering by flight control units (5) when existing localized hyperthermia.
5. the photovoltaic hot spot effect detection system according to claim 1 based on power swing monitoring, it is characterised in that: institute
It states communication unit (4) to be mounted on unmanned plane, main control unit (3) realizes nothing by communication unit (4) and remote monitoring center (2)
Line communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560682.1U CN208675191U (en) | 2018-09-25 | 2018-09-25 | Photovoltaic hot spot effect detection system based on power swing monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560682.1U CN208675191U (en) | 2018-09-25 | 2018-09-25 | Photovoltaic hot spot effect detection system based on power swing monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208675191U true CN208675191U (en) | 2019-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821560682.1U Expired - Fee Related CN208675191U (en) | 2018-09-25 | 2018-09-25 | Photovoltaic hot spot effect detection system based on power swing monitoring |
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| Country | Link |
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| CN (1) | CN208675191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112214032A (en) * | 2019-07-10 | 2021-01-12 | 中强光电股份有限公司 | Unmanned aerial vehicle inspection system and unmanned aerial vehicle inspection method |
| CN112910410A (en) * | 2021-01-21 | 2021-06-04 | 合肥工业大学 | Hot spot effect monitoring system of photovoltaic power station |
-
2018
- 2018-09-25 CN CN201821560682.1U patent/CN208675191U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112214032A (en) * | 2019-07-10 | 2021-01-12 | 中强光电股份有限公司 | Unmanned aerial vehicle inspection system and unmanned aerial vehicle inspection method |
| CN112910410A (en) * | 2021-01-21 | 2021-06-04 | 合肥工业大学 | Hot spot effect monitoring system of photovoltaic power station |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20190925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |