Household photovoltaic station end fusion system for household photovoltaic operation and maintenance

Abstract

The utility model relates to the technical field of photovoltaic maintenance equipment, and particularly discloses a household photovoltaic station end fusion system for household photovoltaic operation and maintenance. The household photovoltaic station end fusion system comprises fusion equipment, an inverter and an automatic spraying device. The fusion equipment comprises a processor and a communication module which are connected with each other; the inverter is connected with the processor; and the inverter is also used for connecting a solar panel. The automatic spraying device comprises a rotary driver, a hard water pipe, a soft water pipe and an electromagnetic valve; a driving shaft of the rotary driver is connected with the hard water pipe; the hard water pipe communicates with the soft water pipe; the hose is connected with a water source; the hard water pipe is erected above the solar panel; a plurality of spraying holes are formed in the hard water pipe; the electromagnetic valve is arranged on the hard water pipe, located in front of the spraying holes and used for controlling water to flow to the spraying holes. The system not only can collect information of the inverter, but also can automatically start the electromagnetic valve and the rotary driver at regular time to flush the solar panel at regular time, so that the maintenance function of the household photovoltaic system is enriched.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic maintenance equipment, and in particular to a household photovoltaic station-end fusion system for household photovoltaic operation and maintenance. Background Art

[0002] Photovoltaic installations are divided into centralized photovoltaic installations and distributed photovoltaic installations. Household photovoltaics are a type of distributed photovoltaics, which contribute nearly half of the installed capacity of distributed photovoltaics and about one-fifth of the total installed capacity.

[0003] Household photovoltaic refers to placing photovoltaic panels on the rooftop or in the courtyard of a family house, using low-power or micro-inverters for current conversion, and directly utilizing this new energy, while also integrating excess electricity into the grid. As the stock of household photovoltaics increases, various operation and maintenance problems arise, such as component contamination, on-site power theft, etc., and the demand for operation and maintenance is increasing, requiring an intelligent operation and maintenance solution.

[0004] refer to Figure 1 Most household photovoltaic systems on the market use 4G communication sticks provided by inverter manufacturers, which can only collect inverter data. The disadvantage is that the function is single and cannot meet the needs of intelligent operation and maintenance and refined management. Utility Model Content

[0005] In view of the fact that the household photovoltaic systems on the market have single functions and cannot meet the needs of intelligent operation and maintenance and refined management, this application proposes a system that can intelligently maintain household photovoltaic systems.

[0006] A household photovoltaic station-end fusion system for household photovoltaic operation and maintenance includes a fusion device, an inverter and an automatic sprinkler. The fusion device includes a processor and a communication module connected to each other; the inverter is connected to the processor; and the inverter is also used to connect to a solar panel. The automatic sprinkler includes a rotary drive, a hard water pipe, a soft water pipe and a solenoid valve; the rotary drive and the solenoid valve are both connected to the processor; the driving shaft of the rotary drive is connected to the hard water pipe; the hard water pipe is connected to the soft water pipe; the soft water pipe is used to connect to a water source; the hard water pipe is set above the solar panel; a plurality of sprinkler holes are provided on the hard water pipe; the solenoid valve is provided on the hard water pipe and is located before the plurality of sprinkler holes, and is used to control the flow of water to the plurality of sprinkler holes.

[0007] By adopting the above technical solution, in addition to collecting information from the inverter, the system can also manually transmit instructions to the communication module. The processor receives the instructions to control the solenoid valve to open, and then water can be sprayed from the spray hole to spray mist water to flush the solar panel. The rotary drive can also be started at the same time to drive the hard water pipe to rotate, thereby flushing the entire solar panel. In addition to manually starting the spray, the system can also automatically start the solenoid valve and rotary drive according to the stored program to flush the solar panel at a fixed time. The above enriches the maintenance function of household photovoltaics, and the solar panels can be flushed through remote control, thereby better meeting the needs of intelligent operation and maintenance and refined management.

[0008] A preferred embodiment of the household photovoltaic station-end fusion system for household photovoltaic operation and maintenance is that the hard water pipe is parallel to the solar panel; and the multiple spray holes are located on the same side of the hard water pipe.

[0009] By adopting the above technical solution, when the hard water pipe is fixed, a partial area of ​​the solar panel can be washed, and after the hard water pipe is rotated, the entire area of ​​the solar panel can be conveniently washed.

[0010] A preferred embodiment of the household photovoltaic station-end fusion system for household photovoltaic operation and maintenance is that the aperture of the spray hole is 0.5 mm-2 mm.

[0011] By adopting the above technical solution, the spray hole with this aperture can better disperse and spray water.

[0012] A preferred embodiment of the household photovoltaic station-end fusion system for household photovoltaic operation and maintenance is that the hard water pipe is a straight pipe, and the driving shaft of the rotary drive is coaxially connected to the hard water pipe.

[0013] By adopting the above technical solution, the rotary driver can drive the hard water pipe to rotate coaxially, thereby facilitating the control of the area swept by the spray water.

[0014] A preferred embodiment of the household photovoltaic station-end fusion system for household photovoltaic operation and maintenance is that the household photovoltaic station-end fusion system also includes an automatic reclosing switch; the automatic reclosing switch is arranged on the line between the inverter and the processor.

[0015] By adopting the above technical solution, the automatic reclosing switch can disconnect the circuit to protect the system equipment when the circuit has overcurrent, overvoltage, leakage and overtemperature, and can remotely control the power outage when necessary.

[0016] A preferred embodiment of the household photovoltaic station-end fusion system for household photovoltaic operation and maintenance is that the household photovoltaic station-end fusion system also includes a temperature sensor and an irradiator; the temperature sensor and the irradiator are both connected to the processor.

[0017] By adopting the above technical solution, the temperature sensor can collect meteorological information at the photovoltaic installation location, such as temperature, light intensity, etc., to further enrich the system functions and further meet the needs of intelligent operation and maintenance and refined management.

[0018] A preferred embodiment of the household photovoltaic station-end fusion system for household photovoltaic operation and maintenance is that the household photovoltaic station-end fusion system also includes an anti-electricity theft device; and the anti-electricity theft device is electrically connected to the processor.

[0019] By adopting the above technical solution, the anti-electricity theft device can adopt the anti-electricity theft device model Th-077 produced by Shenzhen Xinke Polymer Network Technology Co., Ltd. The anti-electricity theft device can collect all the electricity data of the grid-connected electricity meter, such as voltage, current, power, and electricity. These change values ​​can be used to determine whether electricity theft occurs on site. If it is determined that electricity theft occurs on site, the cloud platform can determine the fault, generate a work order, and the operation and maintenance personnel can handle it in time.

[0020] A preferred embodiment of the household photovoltaic station-end fusion system for household photovoltaic operation and maintenance is that the household photovoltaic station-end fusion system also includes a cloud platform; and the communication module and the cloud platform are connected in wireless communication.

[0021] By adopting the above technical solution, the information collected by the fusion equipment can be transmitted to the cloud platform, making it easier for operation and maintenance personnel to understand the status of the photovoltaic system.

[0022] In summary, the household photovoltaic station-side fusion system for household photovoltaic operation and maintenance of the present application has the following beneficial effects:

[0023] 1. Rich in functions, it can automatically flush the solar panels;

[0024] 2. Can monitor various information of photovoltaic equipment;

[0025] 3. No debugging is required. Various data can be directly transmitted after power-on on site, which is convenient for management and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a connection diagram for collecting information using the 4G communication stick provided by the inverter manufacturer for household photovoltaics on the market mentioned in the background technology.

[0027] Figure 2 This is a schematic diagram of the connection structure of the household photovoltaic station-side fusion system used for household photovoltaic operation and maintenance.

[0028] Figure numerals: fusion device 1; inverter 2; automatic sprinkler device 3; solar panel 4; rotation drive 31; hard water pipe 32; soft water pipe 33; solenoid valve 34; sprinkler hole 321; automatic reclosing switch 5; temperature sensor 6; anti-electricity theft device 8; cloud platform 9. DETAILED DESCRIPTION

[0029] The following is a detailed description of the household photovoltaic station-side fusion system used for household photovoltaic operation and maintenance with reference to the accompanying drawings.

[0030] refer to Figure 2 A household photovoltaic station-side fusion system for household photovoltaic operation and maintenance includes a fusion device 1, an inverter 2 and an automatic sprinkler device 3.

[0031] The fusion device 1 includes a processor and a communication module connected to each other. The communication module can be a 4G wireless communication module. The inverter 2 is connected to the processor. The inverter 2 is also used to connect to a solar panel 4 to convert DC power into AC power.

[0032] The automatic sprinkler device 3 includes a rotary driver 31, a hard water pipe 32, a soft water pipe 33 and a solenoid valve 34. The rotary driver 31 and the solenoid valve 34 are both connected to the processor. The rotary driver 31 can be a motor, which is fixed by a bracket. The driving shaft of the rotary driver 31 is connected to the hard water pipe 32. The hard water pipe 32 is connected to the soft water pipe 33. The soft water pipe 33 is used to connect to a water source, for example, the soft water pipe 33 is connected to tap water. The hard water pipe 32 is set above the solar panel 4. A plurality of spray holes 321 are arranged on the hard water pipe 32. The solenoid valve 34 is arranged on the hard water pipe 32 and is located before the plurality of spray holes 321, and is used to control the passage of water to the plurality of spray holes 321. In addition to collecting information from the inverter 2, the system can also manually transmit instructions to the communication module. The processor receives the instructions to control the solenoid valve 34 to open, so that water can be sprayed from the spray hole 321 to flush the solar panel 4. The rotation driver 31 can also be started to rotate at the same time to drive the hard water pipe 32 to rotate, thereby flushing the entire solar panel 4. In addition to manually starting the spray, the system can also automatically start the solenoid valve 34 and the rotation driver 31 according to the stored program to flush the solar panel 4 at a fixed time. The above enriches the maintenance function of household photovoltaics, and the solar panel 4 can be flushed through remote control, thereby better meeting the needs of intelligent operation and maintenance and refined management.

[0033] In order to conveniently spray the entire solar panel 4, the hard water pipe 32 is preferably arranged parallel to the solar panel 4, and the multiple spray holes 321 are located on the same side of the hard water pipe 32. The hard water pipe 32 can further be selected as a straight pipe, and the driving shaft of the rotary driver 31 is coaxially connected to the hard water pipe 32. The rotary driver 31 can drive the hard water pipe 32 to rotate coaxially, which is convenient for controlling the area swept by the spraying water. The solar panel 4 can be a square panel. A hard water pipe 32 for spraying can be installed on each solar panel 4. When the hard water pipe 32 is fixed, a partial area of ​​the solar panel 4 can be rinsed. After rotating the hard water pipe 32, the entire area of ​​the solar panel 4 can be conveniently rinsed.

[0034] In order to spray mist water, the diameter of the spray hole 321 is set to 0.5mm-2mm. The spray hole 321 with this diameter can better disperse and spray water.

[0035] In order to strengthen the safety protection of the photovoltaic system, the household photovoltaic station-end fusion system is also provided with an automatic reclosing switch 5. The automatic reclosing switch 5 is arranged on the line between the inverter 2 and the processor. The automatic reclosing switch 5 is connected to the processor via an RS-485 interface. The automatic reclosing switch 5 can disconnect the circuit to protect the system equipment when the circuit generates overcurrent, overvoltage, leakage and overtemperature. The automatic reclosing switch 5 can be an automatic reclosing switch 5 of model LYM produced by Zhejiang Laiyuan Electric Technology Co., Ltd., which can be used for overcurrent protection, leakage protection, overtemperature protection, etc.

[0036] In order to further enrich the functions of the system, the household photovoltaic station-end fusion system is also provided to include a temperature sensor 6 and an irradiator 7. The temperature sensor 6 can be a temperature sensor of model PHTPW produced by Wuhan New Puhui Technology Co., Ltd. The irradiator 7 can be an irradiator of model TBQ-2-B produced by Jinzhou Sunshine Meteorological Technology Co., Ltd. Both the temperature sensor 6 and the irradiator 7 can be connected to the processor via an RS-485 interface. The temperature sensor 6 can collect temperature information at the installation location of the photovoltaic product, and the irradiator 7 can collect light intensity information at the installation location of the photovoltaic product. The processor can receive and process these meteorological information and transmit the information to the outside through the communication module. The installation of the temperature sensor 6 and the irradiator 7 further enriches the system functions and meets the needs of intelligent operation and maintenance and refined management.

[0037] In order to prevent electricity theft, the household photovoltaic station-side fusion system is also provided with an anti-electricity theft device 8. The anti-electricity theft device 8 is electrically connected to the processor. The anti-electricity theft device 8 can be an anti-electricity theft device of model Th-077 produced by Shenzhen Xinke Polymer Network Technology Co., Ltd. The anti-electricity theft device 8 can collect all the electricity data of the grid-connected electricity meter, such as voltage, current, power, and electricity, and can judge whether electricity theft occurs on site through these change values.

[0038] For the convenience of management, the household photovoltaic station-side fusion system also includes a cloud platform 9. The communication module and the cloud platform 9 are connected by wireless communication. The information collected by the fusion device 1 can be transmitted to the cloud platform 9, which is convenient for the operation and maintenance personnel to grasp the status of the photovoltaic system. If theft of electricity occurs on site, the cloud platform 9 can judge the fault through the anti-theft device 8, generate a work order for dispatch, and the operation and maintenance personnel can handle it in time.

[0039] The household photovoltaic station-side fusion system is rich in functions and matches the existing operation and maintenance needs, and can meet the needs of intelligent operation and maintenance and refined management. This system can prevent power theft, can perform on-site tripping, analysis and remote control, and can remotely control the automatic cleaning of photovoltaic components, which is conducive to the intelligent operation and maintenance of household photovoltaics and provides good conditions for subsequent power station operation and maintenance.

[0040] The above are only some embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. For ordinary technicians in this technical field, some improvements and modifications without departing from the creative design of the present application should also fall within the protection scope of the present application.

Claims

1. A household photovoltaic station-side fusion system for household photovoltaic operation and maintenance, characterized in that: It comprises a fusion device (1), an inverter (2) and an automatic spraying device (3); The fusion device (1) comprises a processor and a communication module connected to each other; the inverter (2) is connected to the processor; the inverter (2) is also used to connect to a solar panel (4); The automatic spraying device (3) comprises a rotary drive (31), a hard water pipe (32), a soft water pipe (33) and a solenoid valve (34); the rotary drive (31) and the solenoid valve (34) are both connected to the processor; the drive shaft of the rotary drive (31) is connected to the hard water pipe (32); the hard water pipe (32) is connected to the soft water pipe (33); the soft water pipe (33) is used to connect to a water source; the hard water pipe (32) is set above the solar panel (4); a plurality of spray holes (321) are arranged on the hard water pipe (32); the solenoid valve (34) is arranged on the hard water pipe (32) and is located before the plurality of spray holes (321), and is used to control the flow of water to the plurality of spray holes (321).

2. The household photovoltaic station-side fusion system for household photovoltaic operation and maintenance according to claim 1 is characterized in that: The hard water pipe (32) is parallel to the solar panel (4); the multiple spray holes (321) are located on the same side of the hard water pipe (32).

3. The household photovoltaic station-side fusion system for household photovoltaic operation and maintenance according to claim 1 is characterized in that: The diameter of the spray hole (321) is 0.5 mm to 2 mm.

4. The household photovoltaic station-side fusion system for household photovoltaic operation and maintenance according to any one of claims 1 to 3, characterized in that: The hard water pipe (32) is a straight pipe, and the drive shaft of the rotary driver (31) and the hard water pipe (32) are coaxially connected.

5. The household photovoltaic station-side fusion system for household photovoltaic operation and maintenance according to claim 1, characterized in that: The household photovoltaic station-end fusion system further comprises an automatic reclosing switch (5); the automatic reclosing switch (5) is arranged on a line between the inverter (2) and the processor.

6. The household photovoltaic station-side fusion system for household photovoltaic operation and maintenance according to claim 1, characterized in that: The household photovoltaic station-end fusion system further comprises a temperature sensor (6) and an irradiator (7); the temperature sensor (6) and the irradiator (7) are both connected to the processor.

7. The household photovoltaic station-side fusion system for household photovoltaic operation and maintenance according to claim 1, characterized in that: The household photovoltaic station-end fusion system further comprises an anti-electricity theft device (8); the anti-electricity theft device (8) is electrically connected to the processor.

8. The household photovoltaic station-side fusion system for household photovoltaic operation and maintenance according to claim 1, characterized in that: The household photovoltaic station-end fusion system further comprises a cloud platform (9); the communication module and the cloud platform (9) are connected in wireless communication.

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