CN114362664B - Remote-control photovoltaic module cleaning matrix device - Google Patents
Remote-control photovoltaic module cleaning matrix device Download PDFInfo
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- CN114362664B CN114362664B CN202111640169.XA CN202111640169A CN114362664B CN 114362664 B CN114362664 B CN 114362664B CN 202111640169 A CN202111640169 A CN 202111640169A CN 114362664 B CN114362664 B CN 114362664B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 162
- 239000011159 matrix material Substances 0.000 title claims abstract description 74
- 238000004364 calculation method Methods 0.000 claims abstract description 22
- 238000012423 maintenance Methods 0.000 claims abstract description 16
- 238000004458 analytical method Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 7
- 230000003749 cleanliness Effects 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000010248 power generation Methods 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 10
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005108 dry cleaning Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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 discloses a remote-control photovoltaic module cleaning matrix device which relates to the field of photovoltaic modules, and comprises a cleaning matrix arranged on the photovoltaic modules, wherein the cleaning matrix is connected with a gateway, the gateway is connected with a cleaning matrix operation platform and a photovoltaic power station operation and maintenance platform through a network, the calculation of a cleaning index in a control system comprises an indirect algorithm for electric quantity analysis and a direct algorithm for dust monitoring.
Description
Technical Field
The invention particularly relates to the field of photovoltaic modules, in particular to a remotely controllable photovoltaic module cleaning matrix device.
Background
Because the natural environment and the surrounding environment can pollute the surface of the photovoltaic module, the power generation efficiency of the system is reduced, and the photovoltaic power generation project module needs to be cleaned locally or totally at irregular intervals. In order to ensure personal safety in the process of cleaning the components, improve the quality and efficiency of related cleaning work, prolong the service life of the photovoltaic components, the cleaning tools and methods of the photovoltaic components are required to be continuously subjected to technical innovation and progress.
The existing cleaning method comprises manual dry cleaning or water cleaning, large-scale mechanical cleaning or robot cleaning and the like, wherein:
shortcomings of manual dry cleaning: the force of different operators is different, the pressure on the component is different, the component is deformed too much, the battery piece is hidden to crack, the dry cleaning component has poor effect, and a large area of shadow shielding is caused because the mop is stained with too much dust and partial trace is left on the surface of the component;
the defect of manual water washing: when the pressure of the water pressure to the photovoltaic module is too high, hidden cracking of the battery piece can be caused, and the change of the water pressure of a spray head of an operator cannot be controlled in the process, because the cleaning speed and the cleaning effect are better when the water pressure is larger;
cleaning defects of large machinery and robots: the requirements on the field environment are high, the large-scale machinery is inconvenient to enter, the installation difficulty of the robot is high, and the maintenance and initial construction costs are high;
therefore, there is a need for a cleaning device that is highly automated and suitable for use with photovoltaic modules.
Disclosure of Invention
The invention aims to provide a remote-control photovoltaic module cleaning matrix device so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the remote-control photovoltaic module cleaning matrix device comprises a cleaning matrix arranged on a photovoltaic module, wherein the cleaning matrix is connected with a gateway, the gateway is connected with a cleaning matrix operation and management platform and a photovoltaic power station operation and maintenance platform through a network, and the cleaning matrix operation and management platform and the photovoltaic power station operation and maintenance platform are both connected with a control system; the gateway is connected with the corresponding cleaning matrix, acquires state parameters of the cleaning matrix, forwards a work control instruction to the cleaning matrix, and executes cleaning action of the photovoltaic module; the control system acquires historical power generation data and related environmental parameters from a photovoltaic power station operation and maintenance platform, calculates the deviation of the actual power generation amount and the standard power generation amount of each photovoltaic module and the change condition of the photovoltaic module cleanliness monitoring sensing data, calculates and determines the cleaning index of the current photovoltaic module, and transmits a cleaning instruction to the gateway in a non-power generation period when the cleaning index reaches a set standard; the calculation of the cleaning index in the control system includes an indirect algorithm for electrical quantity analysis and a direct algorithm for dust monitoring.
Still further aspects are as follows: the cleaning matrix is arranged corresponding to the photovoltaic module, the cleaning matrix comprises a plurality of cleaning water taps arranged in an array mode and electromagnetic control valves arranged on the cleaning water taps, and the electromagnetic control valves are connected with controllers connected with corresponding gateways to control the water outlet cleaning time length and the cleaning water pressure of the cleaning water taps.
Still further aspects are as follows: and the cleaning matrix and the gateway are communicated through the lora.
Still further aspects are as follows: and the lora communication data between the cleaning matrix and the gateway are all encrypted transmission data.
Still further aspects are as follows: the indirect algorithm of cleanliness comprises the following steps:
1. the method comprises the steps that a cleaning matrix operation platform obtains information in a calculation period of the generated energy of each component from a photovoltaic power station operation platform;
2. independently calculating the power generation capacity in the period of each component, and carrying out electric quantity analysis;
3. judging whether the generated energy is low or not, if so, entering the next step; otherwise, returning to continue the acquisition and calculation of the generated energy of the next period;
4. reading real-time meteorological parameters, comparing relevant standards, and preparing the next step of cleaning index calculation;
5. calculating a cleaning index, namely calculating standard generated energy under corresponding meteorological conditions, comparing actual generated energy, and entering a cleaning step when the generated energy differs by more than 2%; otherwise, returning to continue the acquisition and calculation of the generated energy of the next period;
6. and (3) when the actual generated energy differs from the standard generated energy by more than 2 percent in the step (5), starting the cleaning matrix to clean the photovoltaic module, wherein the higher the cleaning index is, the corresponding increase and extension of the starting water pressure are realized in time.
Still further aspects are as follows: a direct algorithm for cleanliness comprising the steps of:
1. the cleaning matrix operation platform acquires the cleanliness original information in the calculation period of each component from the photovoltaic power station operation and maintenance platform;
2. independently calculating the cleanliness of each component in the period according to the original cleanliness information, and carrying out cleanliness analysis;
3. judging whether the cleanliness is low, if so, entering the next step; otherwise, returning to continue the acquisition and calculation of the cleanliness of the next period;
4. calculating a cleaning index, namely calculating whether the cleaning index under the condition of corresponding cleanliness meets the standard, if so, entering a cleaning step, otherwise, returning to continue to acquire and calculate the original information of the cleanliness in the next period;
5. and opening the cleaning matrix to clean the photovoltaic module, wherein the higher the cleaning index is, the opening water pressure is correspondingly increased and prolonged in time.
Still further aspects are as follows: the lora communication can be replaced by one or more of wifi,4G,3G, bluetooth, PLC power line carrier and Zigbee wireless transmission technology.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the photovoltaic module cleaning matrix is deployed, the cleaning weight of the photovoltaic module can be calculated according to the generated energy of each module or other photovoltaic module cleanliness monitoring devices, the system sets the most suitable cleaning water pressure and time length of each point position of the cleaning matrix device according to the weight, and the photovoltaic module is automatically cleaned in regions, water pressure and time length at night without manual intervention.
The system has the self-optimizing capability by combining an indirect algorithm and a direct algorithm, can automatically adjust the cleaning period according to the cleaning matrix unit according to the cleaning water pressure and the time length, the power generation condition in one period after cleaning and the period monitoring of dust, and gradually converges the cleaning water pressure and the time length parameters to achieve the optimal cleaning parameter configuration.
Drawings
Fig. 1 is a schematic structural diagram of a remotely controllable photovoltaic module cleaning matrix device.
Fig. 2 is a system block diagram of a remotely controllable photovoltaic module cleaning matrix apparatus.
Fig. 3 is a schematic diagram of a remotely controllable photovoltaic module cleaning matrix apparatus intermediate algorithm.
Fig. 4 is a schematic diagram of a direct algorithm in a remotely controllable photovoltaic module cleaning matrix apparatus.
In the figure: 1. cleaning a matrix pipe conveying platform; 2. photovoltaic power plant operation and maintenance platform; 3. a gateway; 4. the matrix is washed.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 4, in an embodiment of the present invention, a device for cleaning a matrix 4 of a remotely controllable photovoltaic module includes a plurality of cleaning matrices 4, where the cleaning matrices 4 correspond to the photovoltaic module, the cleaning matrices 4 are all connected with a gateway 3, the gateway 3 is connected with a cleaning matrix pipe-transporting platform 1 and a photovoltaic power station operation and maintenance platform 2 through a network, and the cleaning matrix pipe-transporting platform 1 and the photovoltaic power station operation and maintenance platform 2 are both connected with a control system.
The gateway 3 is connected with the corresponding cleaning matrix 4, acquires state parameters of the cleaning matrix 4 and forwards a working control instruction to the cleaning matrix 4 to execute cleaning action on the photovoltaic module, the number of the gateway 3 is T1 and T2 … … Tm respectively, the number of the cleaning matrices 4 is also a plurality of the same, A1 and A2 … … An respectively, the gateway 3 can be in one-to-one correspondence with the cleaning matrices 4, more than one cleaning matrix 4 can be connected with the same gateway 3 or a plurality of the gateways 3 are connected with the same cleaning matrix 4, and when the plurality of the gateways 3 are connected with the same cleaning matrix 4, the specific cleaning units in the cleaning matrices 4 are controlled in a zoned mode without interference.
The control system acquires historical power generation data and related environmental parameters from the photovoltaic power station operation and maintenance platform 2, calculates the deviation of the actual power generation amount and the standard power generation amount of each photovoltaic module and the change condition of the photovoltaic module cleanliness monitoring sensing data, calculates and determines the cleaning index of the current photovoltaic module, and transmits a cleaning instruction to the gateway 3 in a non-power generation period when the cleaning index reaches a set standard, so that cleaning work is performed at night, and the normal work of the photovoltaic module is not affected.
The calculation of the cleaning index in the control system includes an indirect algorithm for electrical quantity analysis and a direct algorithm for dust monitoring.
Wherein the indirect algorithm comprises the steps of:
1. the method comprises the steps that a cleaning matrix operation platform 1 obtains information in a calculation period of the generated energy of each component from a photovoltaic power station operation and maintenance platform 2;
2. independently calculating the power generation capacity in the period of each component, and carrying out electric quantity analysis;
3. judging whether the generated energy is low or not, if so, entering the next step; otherwise, returning to continue the acquisition and calculation of the generated energy of the next period;
4. reading real-time meteorological parameters, comparing relevant standards, and preparing the next step of cleaning index calculation;
5. calculating a cleaning index, namely calculating standard generated energy under corresponding meteorological conditions, comparing actual generated energy, and entering a cleaning step when the generated energy differs by more than 2%; otherwise, returning to continue the acquisition and calculation of the generated energy of the next period;
6. and (3) when the actual generated energy in the step (5) is different from the standard generated energy by more than 2%, starting the cleaning matrix (4) to clean the photovoltaic module, wherein the higher the cleaning index is, the corresponding increase and extension of the starting water pressure are realized in time.
Wherein the direct algorithm comprises the steps of:
1. the cleaning matrix operation platform 1 acquires the original cleanliness information of each component in the calculation period from the photovoltaic power station operation and maintenance platform 2;
2. independently calculating the cleanliness of each component in the period according to the original cleanliness information, and carrying out cleanliness analysis;
3. judging whether the cleanliness is low, if so, entering the next step; otherwise, returning to continue the acquisition and calculation of the cleanliness of the next period;
4. calculating a cleaning index, namely calculating whether the cleaning index under the condition of corresponding cleanliness meets the standard, if so, entering a cleaning step, otherwise, returning to continue to acquire and calculate the original information of the cleanliness in the next period;
5. and the cleaning matrix 4 is started to clean the photovoltaic module, and the higher the cleaning index is, the corresponding increase and extension of the starting water pressure are realized.
The indirect algorithm and the direct algorithm of the cleanliness are performed simultaneously, when the cleanliness calculated by the indirect algorithm or the direct algorithm reaches the cleaning standard, the cleaning matrix 41 works to clean the photovoltaic module, and when the cleanliness of the indirect algorithm and the cleanliness of the direct algorithm reach the cleaning standard, the opening water pressure is correspondingly increased and prolonged in time.
The cleaning matrix 4 comprises a plurality of cleaning water taps arranged in an array manner and electromagnetic control valves arranged on the cleaning water taps, wherein the electromagnetic control valves are connected with controllers connected with the corresponding gateway 3, and the water outlet cleaning time length and the cleaning water pressure of the cleaning water taps are controlled.
The cleaning matrix 4 and the gateway 3 are communicated through the lora, and the lora is Long Range Radio (Long Range Radio), which is characterized in that the distance of the communication is farther than that of the communication transmitted by other wireless modes under the same power consumption condition, the unification of low power consumption and Long Range is realized, and the communication distance is enlarged by 3-5 times than that of the traditional wireless Radio frequency communication under the same power consumption condition; in order to ensure the security of the system and the full-link data, the data between the cleaning matrix 4 and the gateway 3 and the data between the gateway 3 and the cleaning matrix pipe-transporting platform 1 are encrypted and transmitted.
In addition, the lora communication can be replaced by one or more of wifi,4G,3G, bluetooth, PLC power line carrier and Zigbee wireless transmission technology, so that the use requirements of different occasions are met.
According to the invention, the photovoltaic module cleaning matrix 4 is deployed, the photovoltaic module cleaning weight can be calculated according to the generated energy of each module or other photovoltaic module cleanliness monitoring devices, the system sets the most suitable cleaning water pressure and time length of each point position of the cleaning matrix 4 device according to the weight, and the photovoltaic module is automatically cleaned in the sub-region, the water pressure and the time length at night without manual intervention.
The system has the self-optimizing capability by combining an indirect algorithm and a direct algorithm, and can automatically adjust the cleaning period according to the cleaning water pressure and the time length, the power generation condition in one period after cleaning and the period monitoring of dust, and gradually converge to achieve the optimal cleaning parameter configuration according to the cleaning matrix 4 units.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The remote-control photovoltaic module cleaning matrix device comprises a cleaning matrix arranged on a photovoltaic module and is characterized in that the cleaning matrix is connected with a gateway, the gateway is connected with a cleaning matrix operation and management platform and a photovoltaic power station operation and maintenance platform through a network, and the cleaning matrix operation and management platform and the photovoltaic power station operation and maintenance platform are both connected with a control system; wherein the method comprises the steps of
The gateway is connected with the corresponding cleaning matrix, acquires state parameters of the cleaning matrix, forwards a work control instruction to the cleaning matrix, and executes cleaning action of the photovoltaic module;
the control system acquires historical power generation data and related environmental parameters from a photovoltaic power station operation and maintenance platform, calculates the deviation of the actual power generation amount and the standard power generation amount of each photovoltaic module and the change condition of the photovoltaic module cleanliness monitoring sensing data, calculates and determines the cleaning index of the current photovoltaic module, and transmits a cleaning instruction to the gateway in a non-power generation period when the cleaning index reaches a set standard;
the calculation of the cleaning index in the control system comprises an indirect algorithm for electric quantity analysis and a direct algorithm for dust monitoring;
the indirect algorithm of the cleanliness comprises the following steps:
1) The method comprises the steps that a cleaning matrix operation platform obtains information in a calculation period of the generated energy of each component from a photovoltaic power station operation platform;
2) Independently calculating the power generation capacity of each component in the period, and carrying out electric quantity analysis;
3) Judging whether the generated energy is low or not, and if so, entering the next step; otherwise, returning to continue the acquisition and calculation of the generated energy of the next period;
4) Reading real-time meteorological parameters, comparing relevant standards, and preparing the next step of cleaning index calculation;
5) Calculating a cleaning index, namely calculating standard generated energy under corresponding meteorological conditions, comparing actual generated energy, and entering a cleaning step when the generated energy differs by more than 2%; otherwise, returning to continue the acquisition and calculation of the generated energy of the next period:
6) When the actual generated energy differs from the standard generated energy by more than 2 percent in the step 5, starting a cleaning matrix to clean the photovoltaic module, wherein the higher the cleaning index is, the corresponding increase and extension of the starting water pressure are realized in time;
the direct algorithm of the cleanliness comprises the following steps:
1) The cleaning matrix operation platform acquires the cleanliness original information in the calculation period of each component from the photovoltaic power station operation and maintenance platform;
2) Independently calculating the cleanliness of each component in the period according to the original cleanliness information, and analyzing the cleanliness;
3) Judging whether the cleanliness is low, and if so, entering the next step; otherwise, returning to continue the acquisition and calculation of the cleanliness of the next period;
4) Calculating a cleaning index, namely calculating whether the cleaning index under the condition of corresponding cleanliness meets the standard, if so, entering a cleaning step, otherwise, returning to continue to acquire and calculate the original information of the cleanliness in the next period;
5) And starting the cleaning matrix to clean the photovoltaic module, wherein the higher the cleaning index is, the corresponding increase and extension of the starting water pressure are realized.
2. The remotely controllable photovoltaic module cleaning matrix device according to claim 1, wherein the cleaning matrix is arranged corresponding to the photovoltaic module, the cleaning matrix comprises a plurality of cleaning water taps arranged in an array manner and electromagnetic control valves arranged on the cleaning water taps, and the electromagnetic control valves are connected with controllers connected with corresponding gateways to control the water outlet cleaning time length and the cleaning water pressure of the cleaning water taps.
3. The remotely controllable photovoltaic module cleaning matrix apparatus of claim 1, wherein the cleaning matrix and gateway communicate via a lora communication.
4. The remotely controllable photovoltaic module cleaning matrix device of claim 1, wherein the lora communication data between the cleaning matrix and the gateway are encrypted transmission data.
5. The remotely controllable photovoltaic module cleaning matrix device of claim 3 or claim 4, wherein the lora communication is replaced by one or more of wifi,4g,3g, bluetooth, PLC power line carrier, zigbee wireless transmission technology.
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| CN202111640169.XA CN114362664B (en) | 2021-12-29 | 2021-12-29 | Remote-control photovoltaic module cleaning matrix device |
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| CN202111640169.XA CN114362664B (en) | 2021-12-29 | 2021-12-29 | Remote-control photovoltaic module cleaning matrix device |
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| CN114362664B true CN114362664B (en) | 2024-03-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107133713A (en) * | 2017-03-13 | 2017-09-05 | 华电电力科学研究院 | A kind of photovoltaic plant intelligently cleans the method for building up of decision system |
| CN211321298U (en) * | 2019-11-01 | 2020-08-21 | 西安特变电工电力设计有限责任公司 | Photovoltaic module generated energy loss detecting system |
| KR102182820B1 (en) * | 2020-06-01 | 2020-11-25 | 주식회사 코텍에너지 | Photovoltaic system with malfunction and degradation diagnosis of photovoltaic module and method thereof |
| CN113676135A (en) * | 2021-09-08 | 2021-11-19 | 国能日新科技股份有限公司 | Photovoltaic energy efficiency monitoring method and system based on neural network and optical pollution measurement |
| CN113820755A (en) * | 2020-12-30 | 2021-12-21 | 宁夏中科嘉业新能源研究院（有限公司） | Be used for clean monitoring early warning system of photovoltaic power plant |
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2021
- 2021-12-29 CN CN202111640169.XA patent/CN114362664B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107133713A (en) * | 2017-03-13 | 2017-09-05 | 华电电力科学研究院 | A kind of photovoltaic plant intelligently cleans the method for building up of decision system |
| CN211321298U (en) * | 2019-11-01 | 2020-08-21 | 西安特变电工电力设计有限责任公司 | Photovoltaic module generated energy loss detecting system |
| KR102182820B1 (en) * | 2020-06-01 | 2020-11-25 | 주식회사 코텍에너지 | Photovoltaic system with malfunction and degradation diagnosis of photovoltaic module and method thereof |
| CN113820755A (en) * | 2020-12-30 | 2021-12-21 | 宁夏中科嘉业新能源研究院（有限公司） | Be used for clean monitoring early warning system of photovoltaic power plant |
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