CN108418540B - Automatic cleaning type photovoltaic system and control method thereof - Google Patents
Automatic cleaning type photovoltaic system and control method thereof Download PDFInfo
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- CN108418540B CN108418540B CN201810454420.5A CN201810454420A CN108418540B CN 108418540 B CN108418540 B CN 108418540B CN 201810454420 A CN201810454420 A CN 201810454420A CN 108418540 B CN108418540 B CN 108418540B
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- cleaning
- rainwater
- photovoltaic module
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- water inlet
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- 238000004140 cleaning Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 claims abstract description 30
- 239000000428 dust Substances 0.000 claims abstract description 23
- 238000004146 energy storage Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 88
- 238000001914 filtration Methods 0.000 claims description 50
- 230000007246 mechanism Effects 0.000 claims description 33
- 238000004064 recycling Methods 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
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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
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- Photovoltaic Devices (AREA)
Abstract
The invention relates to the technical field of photovoltaics, and discloses an automatic cleaning type photovoltaic system which comprises a photovoltaic module, a bracket, a controller device, an electric energy storage device, a step-down and step-up circuit, a cleaning device for cleaning the surface of the photovoltaic module, and a rainwater recovery device for recovering rainwater on a photovoltaic panel module, wherein the cleaning device and the rainwater recovery device are matched, so that accumulated dust on the surface of the photovoltaic module is subjected to irregular cleaning, the photovoltaic module is prevented from receiving solar rays due to dust blocking, and the whole photovoltaic system can be ensured to always obtain solar energy optimally for generating electricity; the invention also provides a control method of the automatic cleaning type photovoltaic system, and the control method can enable the photovoltaic system to be more intelligent in cleaning and reduce unnecessary cleaning actions.
Description
Technical Field
The invention relates to the technical field of photovoltaics, in particular to an automatic cleaning type photovoltaic system and a control method thereof.
Background
At present, along with the progress of science and technology, people are increasingly using sunlight, and now people are increasingly demanding electric energy, and the solar energy power generation system mainly comprises: wind energy, water energy, fire energy, solar energy and the like, especially in the existing solar power generation equipment, a photovoltaic panel is mainly installed in a place capable of receiving a large amount of sunlight, such as an empty space, a roof and the like, and the photovoltaic panel is used for receiving the solar light energy, however, a large amount of dust is often generated on the surface of the photovoltaic panel after the photovoltaic panel is used for a period of time, the photovoltaic panel needs to be cleaned, the existing cleaning is mostly carried out manually by using a cleaning tool, the labor intensity is high, the efficiency is low, and the inventor makes new improvement in view of the fact.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an automatic cleaning type photovoltaic system and a control method thereof.
To achieve the above object, the present invention provides a self-cleaning photovoltaic system comprising: the photovoltaic module is used for receiving solar energy; the support is used for mounting the photovoltaic module on the support; a controller device at least for controlling the photovoltaic module; the electric energy storage device is used for storing the converted electric energy; the step-down and step-up circuit is connected with the controller device and the electric energy storage device, and further comprises a cleaning device for cleaning the surface of the photovoltaic module and a rainwater recovery device for recovering rainwater on the photovoltaic module, wherein the rainwater recovery device is matched with the photovoltaic module to spray water when the cleaning device works.
Further, the cleaning device comprises a first guide rail and a second guide rail which are respectively arranged at two sides of the photovoltaic module, a first stress frame is arranged above the first guide rail, a second stress frame is arranged above the second guide rail, the first stress frame is connected with a first power wheel capable of moving along the first guide rail, and the second stress frame is connected with a second power wheel capable of moving along the second guide rail; the novel cleaning device comprises a rotary cleaning assembly, a first power wheel, a second power wheel, a first stress frame, a second stress frame, a first driving mechanism and a second power wheel.
Preferably, the first driving mechanism comprises a motor and a primary and secondary gear connected to the output of the motor, and the primary and secondary gear drives the first power wheel and the rotary cleaning assembly respectively.
Preferably, the second stress frame is further connected with a second driving mechanism, and the second driving mechanism and the first driving mechanism have the same structure and are synchronously and electrically controlled.
Preferably, the rotary cleaning assembly comprises a roller and a central shaft, the central shaft penetrates through the roller and is fixedly connected with the roller, a plurality of cleaning contacts are uniformly distributed on the circumferential surface of the roller, at least one end of the central shaft is provided with a first driven gear, and the first driven gear is meshed with the primary and secondary gears.
Further, the rainwater recovery device comprises a first filtering tank, the first filtering tank is provided with a rainwater recovery channel and a water inlet arranged in the rainwater recovery channel, a cleaning valve is arranged at the bottom of the first filtering tank, a second filtering tank is arranged beside the first filtering tank, an overflow port communicated with the second filtering tank is arranged on the upper portion of the first filtering tank, a filtering assembly is arranged in the second filtering tank, a water pipe is arranged on the upper portion of the second filtering tank, the water pipe is connected with a water storage tank, and a pumping device is arranged on the water storage tank.
Preferably, the water inlet is provided with automatic water inlet mechanism, automatic water inlet mechanism includes the door body and sets up in the sealant of door body week edge, the one end of the door body articulates in the water inlet side, the below of rainwater recovery passageway is provided with the elastic component that is used for supporting the door body and closes the water inlet.
Preferably, the water inlet is provided with automatic water inlet mechanism, automatic water inlet mechanism includes circular shape door body and sets up in the sealant of door body week edge, the door body is provided with the articulated shaft, the articulated shaft wears to be equipped with the elastic component that is used for closing the water inlet, the articulated shaft articulates in the side of water inlet.
Further, the photovoltaic module is provided with a sensor for detecting dust coverage, and the sensor is electrically connected with the controller device.
According to the control method of the photovoltaic system, when the sensor detects that dust covered on the surface of the photovoltaic module exceeds the preset thickness, the cleaning device and the rainwater recovery device are started to clean the surface.
The invention has the beneficial effects that: the utility model provides an automatically cleaning formula photovoltaic system, including photovoltaic module, support, controller device, electric energy storage, step-down circuit, still include the cleaning device who is used for cleaning photovoltaic module surface, and be used for retrieving the rainwater recovery unit of rainwater on the photovoltaic board subassembly, this photovoltaic system utilizes cleaning device and rainwater recovery unit to cooperate, thereby the dust that gathers on photovoltaic module surface carries out the unscheduled washing, in order to avoid photovoltaic module to the receipt of solar ray because of the dust blocking, thereby can ensure that whole photovoltaic system can obtain solar energy optimally always and generate electricity; the invention also provides a control method of the automatic cleaning type photovoltaic system, and the control method can enable the photovoltaic system to be more intelligent in cleaning and reduce unnecessary cleaning actions.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of an assembled structure of the cleaning device of the present invention.
Fig. 3 is a schematic view of a first end cap according to the present invention.
Fig. 4 is a side view of the cleaning device of the present invention.
Fig. 5 is a schematic diagram of an assembled structure of the rainwater recycling device of the present invention.
Fig. 6 is a schematic structural view of an automatic water inlet mechanism of the present invention.
FIG. 7 is a block diagram of an automatic water feeding mechanism according to another embodiment of the present invention
The reference numerals include:
the photovoltaic component-1, the controller device-2, the electric energy storage device-3, the step-down and step-up circuit-4, the cleaning device-5, the first guide rail-51, the second guide rail-52, the first stress frame-53, the second stress frame-54, the first power wheel-55, the second power wheel-56, the rotary cleaning component-57, the roller-571, the central shaft-572, the cleaning contact-573, the first driven gear-574, the first driving mechanism-58, the motor-581, the primary and secondary gears-582, the second driving mechanism-59, the rainwater recovery device-6, the first filtering tank-61, the cleaning valve-611, the overflow port-612, the ore particles-613, the airtight door-614, the rainwater recovery channel-62, the water inlet-621, the second filtering tank-63, the water pipe-631, the filtering component-64, the Z-shaped channel-641, the water storage tank-65, the pumping device-66, the water inlet pipe-661, the water pump-662, the water pipe-663, the automatic water inlet mechanism-67, the door-671, the rubber sealing member-671, the sealing member-673 and the elastic member-673.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 7.
The invention provides an automatic cleaning type photovoltaic system, which comprises: the photovoltaic module 1 is used for receiving solar energy; the support is used for mounting the photovoltaic module on the support; a controller device 2 for controlling at least the photovoltaic module; an electric energy storage device 3 for storing the converted electric energy; the step-down and step-up circuit 4 is connected with the controller device 2 and the electric energy storage device 3, and further comprises a cleaning device 5 for cleaning the surface of the photovoltaic module and a rainwater recovery device 6 for recovering rainwater on the photovoltaic module, wherein the rainwater recovery device 6 is matched with the photovoltaic module 1 to spray water when the cleaning device works; when the photovoltaic system works, the photovoltaic module is used for receiving solar energy, then the solar energy is controlled by the controller device to be converted into electric energy, and the electric energy is sent to the electric energy storage device 3 through the step-down and step-up circuit, when the system rains, the rainwater is recovered and stored by the rainwater recovery device 6, when dust on the surface of the photovoltaic module or oily particles in the atmosphere accumulate more, the photovoltaic module is influenced to receive the solar energy, at the moment, the rainwater recovery device is started to spray the rainwater on the surface of the photovoltaic module, the surface of the photovoltaic module is cleaned by the cleaning device, so that the light energy receiving state with better surface treatment of the photovoltaic module is ensured,
in this technical solution, the cleaning device 5 includes a first guide rail 51 and a second guide rail 52 respectively disposed at two sides of the photovoltaic module, a first stress frame 53 is disposed above the first guide rail 51, a second stress frame 54 is disposed above the second guide rail 52, the first stress frame 53 is connected with a first power wheel 55 capable of moving along the first guide rail 51, and the second stress frame is connected with a second power wheel 56 capable of moving along the second guide rail 52; the cleaning device further comprises a rotary cleaning assembly 57 and a first driving mechanism 58, one end of the rotary cleaning assembly 57 is movably connected with the first stress frame 53 through a bearing, the other end of the rotary cleaning assembly 57 is movably connected with the second stress frame 54 through a bearing, and the first driving mechanism 58 drives the rotary cleaning assembly 57 and the first power wheel 55 simultaneously. When the cleaning device works, the first driving mechanism 58 is used for synchronously driving the rotary cleaning assembly 57 to clean the surface of the photovoltaic panel, and simultaneously, the whole cleaning device can be synchronously driven to advance, so that the danger of manual overhead operation on a roof is avoided, the labor intensity of workers is reduced, and the cleaning speed is high and the efficiency is high.
Specifically, the first driving mechanism 58 includes a motor 581 and a primary and secondary gear 582 connected to an output of the motor 581, and the primary and secondary gear 582 drives the first power wheel 55 and the rotary cleaning assembly 57, respectively.
In this embodiment, the second force-bearing frame 54 is further connected to a second driving mechanism 59, and the second driving mechanism 59 has the same structure as the first driving mechanism 58 and is electrically controlled synchronously. The two driving mechanisms can enable the whole cleaning speed to be faster and the travelling to be more labor-saving.
In this embodiment, the rotary cleaning assembly 57 includes a roller 571 and a central shaft 572, the central shaft 572 passes through the roller 571 and is fixedly connected with the roller 571, a plurality of cleaning contacts 573 are uniformly distributed on the circumferential surface of the roller 571, at least one end of the central shaft 572 is provided with a first driven gear 574, and the first driven gear 574 is meshed with the primary-secondary gear 582. In operation, the roller 571 is driven by the central shaft 572, and the cleaning contact 573 is a brush or an antistatic cloth strip. The brush or the antistatic cloth strip is contacted with the surface of the photovoltaic panel, and the brush or the antistatic cloth strip is cleaned on dust accumulated on the surface of the photovoltaic panel under the condition of spraying water by combining a spray pipe arranged on the photovoltaic panel, so that the surface of the photovoltaic panel is clean, and the effect of absorbing light energy can be exerted to the greatest extent.
The rainwater recycling device comprises a first filtering tank 61, wherein the first filtering tank 61 is provided with a rainwater recycling channel 62 and a water inlet 621 arranged in the rainwater recycling channel 62, a cleaning valve 611 is arranged at the bottom of the first filtering tank 61, a second filtering tank 63 is arranged at the side of the first filtering tank 61, an overflow port 612 communicated with the second filtering tank 63 is arranged at the upper part of the first filtering tank 61, a filtering assembly 64 is arranged in the second filtering tank 63, a water pipe 631 is arranged at the upper part of the second filtering tank 63, the water pipe 631 is connected with a water storage tank 65, and the water storage tank 65 is provided with a pumping device 66; when the recovery device is used, rainwater on the photovoltaic panel is collected by the pipeline and then passes through the rainwater recovery channel 62, then enters the first filter tank 61 from the water inlet 621 for filtration and precipitation, when the water of the water inlet 621 reaches a certain height, the water automatically overflows into the second filter tank 63 from the overflow port 612 for secondary filtration, when the water in the second filter tank 63 is stored to a certain height and then flows into the water storage tank 65, and when the water storage tank is cleaned, the water in the water storage tank 65 is pumped out to a photovoltaic field by the pump device for utilization.
Obviously, this recovery unit has adopted first filtering ponds 61 and second filtering ponds 63 to retrieve and filter the rainwater of photovoltaic board to obtain comparatively clean rainwater, when needs clean photovoltaic board, can directly utilize and retrieve and clear rainwater washs, and then reaches the purpose of saving water resource.
In order to improve the purifying effect, the first filtering tank 61 is filled with a plurality of ore particles 613 for purifying rainwater, and a sealing door 614 is provided at the side of the first filtering tank 61. The ore particles 613 can be withdrawn or added through the airtight door 614, and the airtight door 614 has sealability against leakage of rainwater. The ore particles 613 may be selected to be magnetic so that dust in the stormwater is adsorbed. After a certain degree of adsorption, the airtight door 614 can be opened to withdraw for cleaning.
In order to enable the overflow water to better achieve the first purification, the height of the packed ore particles 613 is up to the H level, and the height of the overflow port 612 is lower than the H level. In this way, foreign matter floating on the horizontal surface can be prevented from flowing directly from the overflow port 612 into the second filtering tank 63.
As the embodiment, the water inlet 621 is provided with an automatic water inlet mechanism 67, the automatic water inlet mechanism 67 includes a door 671 and a sealant 672 disposed at the periphery of the door 671, one end of the door 671 is hinged at the side of the water inlet 621, and an elastic member 673 for supporting the door 671 to close the water inlet 621 is disposed below the rainwater recovery channel 62. The elastic member 673 is a spring, in this embodiment, when the smaller rainwater passes through the rainwater recovery channel 62, the gravity of the rainwater is smaller than the restoring force of the elastic member 673, and the water inlet 621 is closed, so that the smaller rainwater contains a large amount of dust, and therefore the smaller rainwater does not need to be recovered, so as to avoid increasing the filtering efficiency; when larger rainwater passes through the recovery channel, namely, the gravity of the rainwater is larger than the reset force of the elastic piece 673, the water inlet 621 is opened, at this time, the larger rainwater can be recovered, and after a small amount of rainwater takes away most of dust, the dust in a large amount of rainwater is obviously reduced, so that the filtering efficiency can be improved to the greatest extent.
As another embodiment, the water inlet 621 is provided with an automatic water inlet mechanism 67, the automatic water inlet mechanism 67 includes a circular door 671 and a sealant 672 disposed at the periphery of the door 671, the door 671 is provided with a hinge shaft 674, the hinge shaft 674 is provided with an elastic member 673 for closing the water inlet 621, the elastic member 673 is a torsion spring, and the hinge shaft 674 is hinged at the side of the water inlet 621. The automatic water inlet mechanism 67 is basically the same as the previous embodiment, and is different in that the structure is simpler, the elastic member 673 can be prevented from contacting with rainwater to the greatest extent, and the service life is longer.
Obviously, when there is a large amount of rainwater, the amount of attached dust is significantly larger than that attached to a small amount of rainwater under the impact and flow velocity. Further, the filter assembly 64 includes a first filter frame, a second filter frame, a third filter frame, a fourth filter frame, and a fifth filter frame sequentially laminated, and a Z-shaped channel 641 is sequentially formed between the first filter frame, the second filter frame, the third filter frame, the fourth filter frame, and the fifth filter frame. In the above manner, when a large amount of rainwater enters the second filtering tank 63, the rainwater can be distributed and filtered through the Z-shaped channel 641, so that the rainwater is prevented from being excessively concentrated on the first filtering frame to be filtered, and when the water quantity is small, the rainwater can sequentially pass through the first filtering frame, the second filtering frame, the third filtering frame, the fourth filtering frame and the fifth filtering frame to be subjected to multistage filtering.
In this technical scheme, the pumping device 66 includes a water inlet pipe 661, a water pump 662 and a water supply pipe 663, the water inlet pipe 661 and the water supply pipe 663 are respectively connected with the water pump 662, and the water intake end of the water inlet pipe 661 is located in the middle of the water storage tank 65. When water is needed, the water in the water storage tank 65 is lifted by the water pump 662, so that the flushing cleaning of the photovoltaic panel can be formed; of course, as a further improvement, the water storage tank 65 may be added with a water replenishing valve and connected with a water replenishing pipe, and when the recovered rainwater in the water storage pipe is insufficient, the water replenishing pipe can be directly used for replenishing.
In order to further acquire the covering conditions of dust and the like on the surface of the photovoltaic module, the photovoltaic module is provided with a sensor for detecting dust covering, and the sensor is electrically connected with the controller device. The sensor is arranged on the bottom surface of the photovoltaic plate, one transparent area of the photovoltaic plate is utilized for detection, when dust is covered on the surface of the photovoltaic plate, the sensor detects the distance between the sensor and the dust, namely, the dust on the surface is covered greatly, so that the controller device is utilized for controlling the cleaning device and the rainwater recovery device to work for cleaning.
According to the control method of the photovoltaic system, when the sensor detects that dust covered on the surface of the photovoltaic module exceeds the preset thickness, the cleaning device and the rainwater recovery device are started to clean the surface, the sensor is used for detecting, and when the thickness of the dust reaches a certain thickness, the cleaning device and the rainwater recovery device are automatically triggered to clean the surface of the photovoltaic panel.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (5)
1. A self-cleaning photovoltaic system comprising:
the photovoltaic module is used for receiving solar energy;
the support is used for mounting the photovoltaic module on the support;
a controller device at least for controlling the photovoltaic module;
the electric energy storage device is used for storing the converted electric energy;
a step-down and step-up circuit connected with the controller device and the electric energy storage device,
the method is characterized in that: the device also comprises a cleaning device for cleaning the surface of the photovoltaic module and a rainwater recovery device for recovering rainwater on the photovoltaic panel module, and when the cleaning device works, the rainwater recovery device is matched with the photovoltaic module to spray water;
the cleaning device comprises a first guide rail and a second guide rail which are respectively arranged at two sides of the photovoltaic module, a first stress frame is arranged above the first guide rail, a second stress frame is arranged above the second guide rail, the first stress frame is connected with a first power wheel capable of moving along the first guide rail, and the second stress frame is connected with a second power wheel capable of moving along the second guide rail; the rotary cleaning device comprises a rotary cleaning assembly, a first power wheel, a second power wheel, a first stress frame, a second stress frame, a first driving mechanism and a second driving mechanism, wherein one end of the rotary cleaning assembly is movably connected with the first stress frame through a bearing, the other end of the rotary cleaning assembly is movably connected with the second stress frame through a bearing, and the first driving mechanism drives the rotary cleaning assembly and the first power wheel simultaneously;
the first driving mechanism comprises a motor and a primary gear and secondary gear connected to the output of the motor, and the primary gear and the secondary gear respectively drive the first power wheel and the rotary cleaning assembly;
the rainwater recycling device comprises a first filtering tank, wherein the first filtering tank is provided with a rainwater recycling channel and a water inlet arranged in the rainwater recycling channel, a cleaning valve is arranged at the bottom of the first filtering tank, a second filtering tank is arranged beside the first filtering tank, an overflow port communicated with the second filtering tank is arranged at the upper part of the first filtering tank, a filtering assembly is arranged in the second filtering tank, a water passing pipe is arranged at the upper part of the second filtering tank, a water storage tank is connected with the water passing pipe, and a pumping device is arranged in the water storage tank;
the automatic water inlet mechanism comprises a door body and sealant arranged at the periphery of the door body, one end of the door body is hinged to the side of the water inlet, and an elastic piece for supporting the door body to close the water inlet is arranged below the rainwater recovery channel;
or the automatic water inlet mechanism comprises a circular door body and sealant arranged at the periphery of the door body, the door body is provided with a hinge shaft, the hinge shaft is provided with an elastic piece in a penetrating way, the elastic piece is used for closing the water inlet, and the hinge shaft is hinged to the side of the water inlet.
2. The self-cleaning photovoltaic system of claim 1, wherein: the second stress frame is also connected with a second driving mechanism, and the second driving mechanism and the first driving mechanism have the same structure and are synchronously and electrically controlled.
3. The self-cleaning photovoltaic system of claim 1, wherein: the rotary cleaning assembly comprises a roller and a central shaft, the central shaft penetrates through the roller and is fixedly connected with the roller, a plurality of cleaning contacts are uniformly distributed on the circumferential surface of the roller, at least one end of the central shaft is provided with a first driven gear, and the first driven gear is meshed with the primary gear and the secondary gear.
4. The self-cleaning photovoltaic system according to any one of claims 1-3, wherein: the photovoltaic module is provided with a sensor for detecting dust coverage, and the sensor is electrically connected with the controller device.
5. A method of controlling a self-cleaning photovoltaic system according to claim 4, wherein: when the sensor detects that dust covered on the surface of the photovoltaic module exceeds a preset thickness, the cleaning device and the rainwater recovery device are started to clean the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454420.5A CN108418540B (en) | 2018-05-14 | 2018-05-14 | Automatic cleaning type photovoltaic system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810454420.5A CN108418540B (en) | 2018-05-14 | 2018-05-14 | Automatic cleaning type photovoltaic system and control method thereof |
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| CN108418540A CN108418540A (en) | 2018-08-17 |
| CN108418540B true CN108418540B (en) | 2024-01-23 |
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| CN113492122A (en) * | 2020-03-20 | 2021-10-12 | 杨俊凯 | Portable photovoltaic power plant belt cleaning device |
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