Photovoltaic module operation and maintenance system

Abstract

The utility model relates to a photovoltaic module operation and maintenance system, and the system comprises a temperature monitoring device which monitors the temperature of a photovoltaic module and transmits temperature information to a control device; the pressure monitoring device is used for monitoring the pressure borne by the photovoltaic module and sending pressure information to the control device; the control device is used for determining ablation working parameters according to the temperature information and the pressure information; the ablation device is used for carrying out ice and snow ablation treatment on the photovoltaic module according to the ablation working parameters; the temperature monitoring device, the pressure monitoring device and the ablation device are all connected with the control device. According to the system, full-automatic photovoltaic module operation and maintenance can be realized, a large amount of manual repeated labor is saved, and the operation and maintenance safety of the photovoltaic module can be improved.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a photovoltaic module operation and maintenance system. Background Art

[0002] With the development of power technology, photovoltaic power generation has gradually become one of the commonly used power generation methods in life. During the operation of photovoltaic modules, they are greatly affected by extreme weather in winter. For example, under the influence of snow, photovoltaic modules are prone to collapse as a whole; under the influence of freezing rain, the surface of photovoltaic modules will freeze, which will not only reduce power generation, but also affect the life of photovoltaic modules. Based on this, it is necessary to operate and maintain photovoltaic modules to ensure the stable operation of photovoltaic modules.

[0003] In traditional technology, maintaining the operation process of photovoltaic modules through manual operation and maintenance not only requires a lot of human resources, but also has the problem of low safety in manual maintenance of photovoltaic modules under extreme weather conditions. Utility Model Content

[0004] Based on this, it is necessary to provide a photovoltaic module operation and maintenance system that can ensure the safety of photovoltaic module operation and maintenance in response to the above technical problems.

[0005] The present application provides a photovoltaic module operation and maintenance system, including:

[0006] A temperature monitoring device that monitors the temperature of the photovoltaic module and sends temperature information to the control device;

[0007] A pressure monitoring device for monitoring the pressure on the photovoltaic assembly and sending pressure information to the control device;

[0008] The control device determines the ablation working parameters according to the temperature information and the pressure information;

[0009] An ablation device for performing ice and snow ablation on the photovoltaic module according to the ablation working parameters;

[0010] The temperature monitoring device, the pressure monitoring device, and the ablation device are all connected to the control device.

[0011] In one of the embodiments, the temperature monitoring device includes a temperature judgment module and a temperature acquisition module disposed on the back of the photovoltaic module; the temperature judgment module is connected to the temperature acquisition module and the control device.

[0012] In one of the embodiments, the temperature judgment module includes a temperature storage unit and a temperature judgment unit; the temperature judgment unit is connected to the temperature acquisition module, the temperature storage unit and the control device.

[0013] In one of the embodiments, the pressure monitoring device includes a pressure determination module and a pressure collection module; the pressure determination module is connected to the pressure collection module and the control device.

[0014] In one of the embodiments, the pressure judgment module includes a pressure storage unit and a pressure judgment unit; the pressure judgment unit is connected to the pressure acquisition module, the pressure storage unit and the control device.

[0015] In one embodiment, the ablation device comprises an ablation water tank; the ablation water tank is connected to the control device.

[0016] In one embodiment, the ablation water tank includes a water tank body and a reagent kit for carrying an ablation agent; the reagent kit and the water tank body are both connected to the control device.

[0017] In one of the embodiments, the ablation device further includes a water tank pressure monitoring module; the water tank pressure monitoring module is connected to the control device and the ablation water tank.

[0018] In one of the embodiments, the ablation device is provided with a nozzle; the nozzle is connected to the water tank and the control device.

[0019] In one embodiment, the ablation device further includes a motion module; the motion module is connected to the control device and drives the nozzle to move under the control of the control device.

[0020] The above-mentioned photovoltaic module operation and maintenance system is equipped with a temperature monitoring device to monitor the temperature of the photovoltaic module and send temperature information to the control device; a pressure monitoring device is equipped to monitor the pressure on the photovoltaic module and send pressure information to the control device; the control device is equipped to determine the ablation working parameters according to the temperature information and pressure information; and an ablation device is equipped to melt ice and snow on the photovoltaic module according to the ablation working parameters. This can realize fully automatic photovoltaic module operation and maintenance, save a lot of manual repetitive labor, and is conducive to improving the safety of photovoltaic module operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a structural block diagram of a photovoltaic module operation and maintenance system in one embodiment;

[0023] Figure 2It is a structural block diagram of a photovoltaic module operation and maintenance system in another embodiment. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] Spatially relative terms such as "under," "beneath," "below," "under," "above," "above," and the like may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientations shown in the figures, spatially relative terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0027] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. In addition, the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if there is transmission of electrical signals or data between the connected objects.

[0028] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0029] As described in the background technology, photovoltaic power generation has gradually become a common power generation method in life, and the form of photovoltaic modules is generally photovoltaic panels, located on the tile roof of the building, or the cement flat roof of the building. Multiple photovoltaic modules are installed on the roof through brackets, forming a distributed power station. At present, a large number of distributed power stations are self-supporting power stations for residents. The construction strength and quality are not as good as those of conventional large-scale power stations, and the protection ability against extreme weather in winter is weaker. Snow and freezing rain have a greater impact on the power station. Specifically, distributed power stations face the influence of snow and freezing rain in winter. Snow on the surface of the components will affect the power generation of the components, reduce the power generation income, and bring snow load tests, which can easily cause the overall collapse of the power station; freezing rain on the surface of the components will reduce the power generation of the components, and the uneven temperature of the components will affect the operating status of the components and reduce the life of the components. In addition, if the distributed power station is located in an extreme winter area, climate factors such as snow and freezing rain will have a great impact on the safety of the power station system and the power generation income, and will also affect the owner's return on investment. In this case, winter operation and maintenance of distributed power stations is difficult, and they basically rely on manual work such as system snow removal and component cleaning. The operation and maintenance is difficult, component snow removal consumes a lot of manpower, and conventional operation and maintenance methods cannot cope with snow accumulation and freezing rain. Moreover, distributed power stations are generally located on the roof or side of buildings. Conventional winter manual operation and maintenance methods are not only time-consuming and laborious, but also have safety risks, such as the risk of falling from heights, component damage, and component trampling.

[0030] Based on the above reasons, the present application provides a photovoltaic module operation and maintenance system, which can realize fully automatic photovoltaic module operation and maintenance by configuring a temperature monitoring device to monitor the temperature of the photovoltaic module and send temperature information to the control device, configuring a pressure monitoring device to monitor the pressure borne by the photovoltaic module and send pressure information to the control device, configuring the control device to determine the ablation working parameters according to the temperature information and pressure information, and configuring the ablation device to perform ice and snow melting processing on the photovoltaic module according to the ablation working parameters. It can save a lot of manual repetitive labor and improve the safety of photovoltaic module operation and maintenance.

[0031] In one embodiment, Figure 1 As shown, a photovoltaic module operation and maintenance system is provided, including a control device 3, and a temperature monitoring device 1, a pressure monitoring device 2, and an ablation device 4 connected to the control device 3. The temperature monitoring device 1 is used to monitor the temperature of the photovoltaic module and send temperature information to the control device; the pressure monitoring device 2 is used to monitor the pressure of the photovoltaic module and send pressure information to the control device; the control device 3 is used to determine the ablation working parameters according to the temperature information and the pressure information; the ablation device 4 is used to perform ice and snow ablation processing on the photovoltaic module according to the ablation working parameters.

[0032] Among them, the photovoltaic module refers to the smallest photovoltaic cell assembly device that can provide direct current alone and is indivisible. It is the core part of the solar power generation system and the most important part of the solar power generation system. Its function is to convert solar energy into electrical energy, or send it to the battery for storage, or drive the load to work. Temperature information refers to the information determined by the temperature monitoring device 1 based on the measured temperature of the photovoltaic module, for example, it can include real-time temperature value, temperature change information or temperature judgment information. Pressure information refers to the information determined by the pressure monitoring device 2 based on the measured pressure of the photovoltaic module, for example, it can include real-time pressure value, pressure change information or pressure judgment information. The temperature monitoring device 1 and the pressure monitoring device 2 are devices for temperature monitoring and pressure monitoring of the photovoltaic module, respectively, and can specifically be temperature sensors, pressure sensors, etc. In a specific embodiment, the temperature monitoring device 1 and the pressure monitoring device 2 can also be integrated into one monitoring device to reduce the volume.

[0033] The control device 3 is a device that receives information transmitted by various devices. The control device 3 can be integrated into the power generation control system or other operation and maintenance system of the photovoltaic module. In a specific embodiment, the control device 3 can be a hardware module including various processing chips and their peripheral circuits, and having a logic operation function. The processing chip can be a single-chip microcomputer, a DSP (Digital Signal Process) chip, or an FPGA (Field Programmable Gate Array) chip.

[0034] The ablation device 4 refers to a device that can perform a melting operation on accumulated snow or freezing rain. The ablation device 4 can be, for example, a device with a brush head for brushing off the accumulated snow or freezing rain on the surface of the photovoltaic module; it can also be a spraying device with a water tank nozzle for melting the accumulated snow or freezing rain on the surface of the photovoltaic module by spraying a solution. Furthermore, when the ablation device 4 is a spraying device, the type of reagent carried in the water tank is not limited, for example, it can be tap water, or various chemical reagents. The ablation working parameters refer to the working parameters of the ablation device 4 when performing an ice and snow melting process on the photovoltaic module. Taking the case where the ablation device 4 is a spraying device as an example, the ablation working parameters can include, for example, at least one of the heating temperature, the type of reagent, the spraying range, the spraying pressure, and the like.

[0035] Specifically, the impact of extreme winter weather on photovoltaic modules is mainly reflected in temperature and pressure. For example, snow accumulation and freezing rain will cause the temperature of photovoltaic modules to drop sharply, and will also increase the pressure on photovoltaic modules, thereby causing damage to photovoltaic modules. Therefore, a temperature detection device 1 can be set up on the photovoltaic module to monitor the temperature of the photovoltaic module and send temperature information to the control device 3. A pressure detection device 2 can be set up on the photovoltaic module to monitor the pressure of the photovoltaic module and send pressure information to the control device 3. Thus, the control device 3 can determine the ablation working parameters based on the temperature information and pressure information. Finally, the ablation device 4 can perform ice and snow ablation on the photovoltaic module according to the ablation working parameters.

[0036] In a specific embodiment, the temperature detection device 1 monitors the temperature of the photovoltaic module and sends the temperature information "meets the icing standard" to the control device 3, and the pressure detection device 1 monitors the pressure of the photovoltaic module and sends the pressure information "does not meet the snow load standard" to the control device 3. At this time, the control device 3 can determine that the current freezing rain situation is more serious based on the temperature information and pressure information, and then determine the ablation working parameter as "chemical reagent for freezing rain ablation". Therefore, the ablation device 4 can use chemical reagents for freezing rain to perform freezing rain ablation treatment on the photovoltaic module.

[0037] In another specific embodiment, the temperature detection device 1 monitors the temperature of the photovoltaic module and sends the temperature information "not meeting the icing standard" to the control device 3, and the pressure detection device 1 monitors the pressure of the photovoltaic module and sends the pressure information "meets the snow load standard" to the control device 3. At this time, the control device 3 can determine that the current snow situation is more serious based on the temperature information and pressure information, and then determine the ablation working parameter as "chemical reagent for snow accumulation". Therefore, the ablation device 4 can use chemical reagents for snow accumulation to perform snow ablation on the photovoltaic module.

[0038] The above-mentioned photovoltaic module operation and maintenance system is equipped with a temperature monitoring device 1 to monitor the temperature of the photovoltaic module and send temperature information to the control device 3, and is equipped with a pressure monitoring device 2 to monitor the pressure on the photovoltaic module and send pressure information to the control device 3. The control device 3 is configured to determine the ablation working parameters according to the temperature information and the pressure information, and the ablation device 4 is configured to perform ice and snow melting processing on the photovoltaic module according to the ablation working parameters. This can realize fully automatic photovoltaic module operation and maintenance, save a lot of manual repetitive labor, and improve the safety of photovoltaic module operation and maintenance.

[0039] In one embodiment, Figure 2 As shown, the temperature monitoring device 1 includes a temperature judgment module 11 and a temperature acquisition module 12 arranged on the back of the photovoltaic module; the temperature judgment module 11 is connected to the temperature acquisition module 12 and the control device 3.

[0040] Among them, the temperature judgment module 11 refers to a module that can judge the temperature value. The temperature judgment module 11 can be a hardware module that includes various processing chips and their peripheral circuits and has a logical operation function. The processing chip can be a single-chip microcomputer, a DSP chip or an FPGA chip. The temperature acquisition module 12 refers to a module that can collect temperature, for example, it can be a temperature detector, a temperature sensor, etc. Further, the temperature acquisition module 12 collects the temperature of the photovoltaic module when it is affected by extreme weather in winter. Once it is in a direct sunlight area, it will be affected by sunlight, resulting in a deviation between the collected temperature and the actual situation. Therefore, the temperature acquisition module 12 is set on the back of the photovoltaic module to avoid the problem of inaccurate temperature collection due to the influence of direct sunlight.

[0041] Specifically, when the photovoltaic components are affected by extreme winter weather, the temperature of the photovoltaic components can be collected by the temperature collection module 12, and the temperature can be sent to the temperature judgment module 11, which judges the temperature and generates temperature information based on the temperature and sends it to the control device 3. It can be understood that the way to judge the temperature can be to compare the temperature with the temperature threshold or to match the temperature with pre-stored meteorological temperature data, which is not limited here.

[0042] In the above embodiment, a temperature judgment module 11 and a temperature collection module 12 arranged on the back of the photovoltaic module are configured in the temperature monitoring device 1, which can accurately collect the temperature of the photovoltaic module when the photovoltaic module is affected by extreme weather, which is beneficial to improving the accuracy of the photovoltaic module operation and maintenance system.

[0043] In one embodiment, Figure 2 As shown, the temperature judgment module 11 includes a temperature storage unit 111 and a temperature judgment unit 112 ; the temperature judgment unit 112 is connected to the temperature acquisition module 12 , the temperature storage unit 111 and the control device 3 .

[0044] The temperature storage unit 111 is a unit that can store meteorological temperature data, and the temperature judgment unit 112 is a unit that can judge the temperature according to the meteorological temperature data.

[0045] Specifically, a large amount of meteorological temperature data can be pre-stored in the temperature storage unit 111, and the temperature judgment unit 112 can compare the temperature collected by the temperature collection module 12 with each meteorological temperature data to determine whether the temperature meets the freezing standard and send the obtained temperature information to the control device 3.

[0046] In this embodiment, a temperature storage unit 111 and a temperature judgment unit 112 for storing a large amount of meteorological temperature data are configured to make a more rigorous judgment on the collected temperature, improve the accuracy of temperature judgment, and further improve the accuracy of photovoltaic operation and maintenance.

[0047] In one embodiment, Figure 2 As shown, the pressure monitoring device 2 includes a pressure determination module 21 and a pressure acquisition module 22 ; the pressure determination module 21 is connected to the pressure acquisition module 22 and the control device 3 .

[0048] Among them, the pressure judgment module 21 refers to a module that can judge the pressure value. The pressure judgment module 21 can be a hardware module that includes various processing chips and their peripheral circuits and has a logical operation function. The processing chip can be a single-chip microcomputer, a DSP chip or an FPGA chip. The pressure acquisition module 22 refers to a module that can collect pressure, such as a pressure detector, a pressure sensor, etc.

[0049] Specifically, when the photovoltaic assembly is affected by extreme winter weather, the pressure of the photovoltaic assembly can be collected by the pressure collection module 22, and the pressure can be sent to the pressure judgment module 21, which judges the pressure and generates pressure information based on the pressure and sends it to the control device 3. It can be understood that the pressure can be judged by comparing the pressure with the pressure threshold, or by matching the pressure with pre-stored relevant load data of various types, versions, sizes, frame types, etc.

[0050] In the above embodiment, configuring the pressure determination module 21 and the pressure acquisition module 22 in the pressure monitoring device 1 can effectively realize accurate monitoring of the pressure of the photovoltaic module, which is beneficial to improving the accuracy of the photovoltaic module operation and maintenance system.

[0051] In one embodiment, Figure 2 As shown, the pressure judgment module 21 includes a pressure storage unit 211 and a pressure judgment unit 212 ; the pressure judgment unit 212 is connected to the pressure acquisition module 22 , the pressure storage unit 211 and the control device 3 .

[0052] The pressure storage unit 211 is a unit that can store various types, formats, sizes, frame types and other related load data, and the pressure judgment unit 212 is a unit that can judge the pressure according to the related load data.

[0053] Specifically, various types, versions, sizes, frame types and other related load data can be pre-stored in the pressure storage unit 211. The pressure judgment unit 212 can compare the pressure collected by the pressure collection module 22 with the relevant load data to determine whether the pressure meets the snow load standard, and send the obtained pressure information to the control device 3.

[0054] In this embodiment, a pressure storage unit 211 and a pressure judgment unit 212 for storing relevant load data are configured to make a more rigorous judgment on the collected pressure, improve the accuracy of pressure judgment, and further improve the accuracy of photovoltaic operation and maintenance.

[0055] In one embodiment, Figure 2 As shown, the ablation device 4 includes an ablation water tank 41 ; the ablation water tank 41 is connected to the control device 3 .

[0056] The ablation water tank 41 refers to a box that can store reagents. The specific shape of the box can be, for example, a cylinder, a cube, or a cuboid, and the specific material can be metal, plastic, or ceramic. In short, this embodiment does not limit the shape and material of the ablation water tank 41. In a specific embodiment, the ablation water tank can include an ice melting reagent water tank and a snow melting reagent water tank.

[0057] Specifically, an ablation water tank 41 for storing reagents is configured. When the photovoltaic modules are subjected to ice and snow melting treatment, the reagents in the ablation water tank 41 are sprayed onto the photovoltaic modules, thereby melting the snow or freezing rain accumulated on the photovoltaic modules, thereby achieving rapid maintenance of the photovoltaic modules and improving the efficiency of operation and maintenance of the photovoltaic modules.

[0058] In one embodiment, Figure 2 As shown, the ablation water tank 41 includes a water tank body 411 and a reagent kit 412 for carrying an ablation agent; the reagent kit 412 and the water tank body 411 are both connected to the control device 3 .

[0059] The water tank body 411 is a shell that can contain reagents. In this embodiment, the shape and material of the water tank body 411 are not limited. The ablative reagent refers to a reagent that can ablate snow or freezing rain. It can be understood that the types of reagents that ablate snow or freezing rain are not the same. The reagent kit 412 is used to carry the ablative reagent. In this embodiment, the shape and material of the reagent kit 412 are also not limited.

[0060] Specifically, the control device 3 can control the reagent kit 412 to pour the corresponding ablative agent into the water tank body 411 based on the ablation working parameters, and then control the water tank body 411 to perform the corresponding ice and snow ablation operation, thereby effectively removing the impact caused by different extreme weather conditions. In a specific implementation, the water tank body 411 can also be connected to a tap water pipe to dilute the ablative agent after pouring the ablative agent into the water tank body 411. It can be understood that in this embodiment, the ablation working parameters can also include the concentration of the agent.

[0061] Furthermore, in some embodiments, it is also possible to use tap water to melt ice and snow without adding additional reagents. In the case of this embodiment, a heating device can also be provided in the water tank body 411, and the control device 3 can control the heating device to heat the reagent in the water tank body 411 in addition to controlling the water tank body 411 to replenish water through the tap water pipe, thereby increasing the melting rate of ice and snow.

[0062] In one embodiment, Figure 2 As shown, the ablation device 41 further includes a water tank pressure monitoring module 43 ; the water tank pressure monitoring module 43 is connected to the control device 3 and the ablation water tank 41 .

[0063] The water tank pressure monitoring module 43 refers to a module that can monitor whether the water pressure in the ablation water tank 41 meets the use conditions, that is, it can detect whether the solution in the ablation water tank 41 is sufficient.

[0064] Specifically, during the process of melting ice and snow on the photovoltaic module, it is necessary to ensure that there is sufficient solution. Therefore, before melting ice and snow on the photovoltaic module, it is necessary to monitor whether the water pressure in the melting water tank 41 meets the use conditions. If the water pressure in the melting water tank 41 does not meet the use conditions, the information of insufficient reagent needs to be sent to the control device 3, and the control device 3 controls the melting water tank 41 to replenish the reagent; if the water pressure in the melting water tank 41 meets the use conditions, it proves that the melting water tank 41 can perform the melting ice and snow operation.

[0065] In this embodiment, a water tank pressure monitoring module 43 capable of monitoring the water pressure in the ablation water tank 41 is configured to ensure the stability of the photovoltaic assembly operation and maintenance process.

[0066] In one embodiment, Figure 2 As shown, the ablation device 41 is provided with a nozzle 42 ; the nozzle 42 is connected to the ablation water tank 41 and the control device 3 .

[0067] The nozzle 42 refers to a reagent nozzle that can spray reagents, such as a mist reagent nozzle, a water drop reagent nozzle, or a columnar reagent nozzle, etc. The nozzle 42 includes but is not limited to a flexible cleaning brush head (plastic material, nylon material, acrylic material, animal hair material), a hard cleaning brush head (rigid plastic, metal material, ceramic material).

[0068] Specifically, in order to spray the reagent in the ablation water tank 41 onto the photovoltaic module, a nozzle 42 is also required. The control device 3 can control the nozzle 42 to spray the reagent in the ablation water tank 41 onto the photovoltaic module. Further, the nozzle 42 can be connected to the ablation water tank 41 through a water pipe.

[0069] In a specific embodiment, the control device 3 can control the water spraying rate and water flow size of the nozzle according to the pressure information and temperature information, so as to select a suitable spraying method according to the actual situation, save costs and improve efficiency.

[0070] In one embodiment, Figure 2 As shown, the ablation device 41 further includes a motion module 44 ; the motion module 44 is connected to the control device 3 , and drives the nozzle 42 to move under the control of the control device 3 .

[0071] The motion module 44 refers to a module that can move, such as a motor or other power device.

[0072] Specifically, in order to improve the efficiency of photovoltaic module operation and maintenance, a motion module 44 can be provided, and the motion module 44 drives the nozzle 42 to move under the control of the control device 3. For example, since the freezing degree of freezing rain is not uniform, the surface of the photovoltaic module may be partially thicker and partially thinner. In this case, the control device 3 can control the motion module 44 to drive the nozzle 42 to move toward the thick ice layer, first melt the thick ice layer, and then melt the thin ice layer.

[0073] In this embodiment, the movement of the nozzle 42 is driven by the motion module 44, and ice and snow can be melted preferentially in the more serious areas according to actual conditions, thereby improving the efficiency of photovoltaic module operation and maintenance.

[0074] In a specific embodiment, a photovoltaic module operation and maintenance system is also provided. Figure 2 As shown, including:

[0075] The temperature monitoring device 1 is attached to the back of the photovoltaic module and is used to monitor the temperature change of the photovoltaic module in real time.

[0076] The temperature judgment module 11 includes a temperature storage unit 111 and a temperature judgment unit 112. The temperature storage unit 111 has a large amount of meteorological temperature data built in. The temperature judgment unit 112 is used to judge whether the temperature and climate meet the freezing standard; the temperature collection module 12 is used to collect the temperature.

[0077] The pressure monitoring device 2 is attached to the center of the photovoltaic module and is used to monitor the pressure changes of the photovoltaic module in real time.

[0078] The pressure judgment module 21 includes a pressure storage unit 211 and a pressure judgment unit 212. It has built-in various types, versions, sizes, frame types and other related load data, and compares the pressure in real time to judge whether the component is about to reach the snow load mark and whether there is a risk of component bursting; the pressure collection module 22 is used to collect pressure;

[0079] The control device 3 receives the electrical signals and judgment results transmitted by various devices, and can also be integrated into other operation and maintenance systems to perform winter photovoltaic component system maintenance.

[0080] The ablation device 4 is used to perform ice and snow ablation processing on the photovoltaic components according to the ablation working parameters.

[0081] Among them, the melting water tank 41 is divided into an ice-melting / snow-melting reagent water tank, which is used to add different chemical reagents to cope with different extreme environments in winter; the nozzle 42, that is, the reagent water nozzle, includes but is not limited to a flexible cleaning brush head (plastic material, nylon material, acrylic material, animal hair material), a hard cleaning brush head (rigid plastic, metal material, ceramic material), and the nozzle form includes various types such as mist reagent water / droplet reagent water / column reagent water; the water tank pressure monitoring module 43, that is, several pressure probes, monitors whether the water pressure of the ice-melting reagent melting water tank / snow-melting reagent melting water tank meets the system use; the motion module 44 is used to drive the nozzle 42 to move.

[0082] The use of the above photovoltaic module operation and maintenance system can free up a lot of operation and maintenance manpower, and through intelligent monitoring means, the owner does not need to assign professional operation and maintenance to the power station where the photovoltaic modules are located in the extreme winter environment, but can carry out normal operation of its own power station by itself, saving operation and maintenance costs, improving power station operation efficiency, and increasing the return on investment. In other words, the above photovoltaic module operation and maintenance system is fully automated, saving a lot of manual repetitive labor and reducing the risk of high-altitude operations.

[0083] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0084] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A photovoltaic module operation and maintenance system, characterized in that: include: A temperature monitoring device that monitors the temperature of the photovoltaic module and sends temperature information to the control device; A pressure monitoring device for monitoring the pressure on the photovoltaic assembly and sending pressure information to the control device; The control device determines the ablation working parameters according to the temperature information and the pressure information; An ablation device for ablating ice and snow from the photovoltaic module according to the ablation working parameters; The temperature monitoring device, the pressure monitoring device, and the ablation device are all connected to the control device.

2. The photovoltaic module operation and maintenance system according to claim 1, characterized in that: The temperature monitoring device comprises a temperature judgment module and a temperature collection module arranged on the back of the photovoltaic module; the temperature judgment module is connected to the temperature collection module and the control device.

3. The photovoltaic module operation and maintenance system according to claim 2, characterized in that: The temperature judgment module includes a temperature storage unit and a temperature judgment unit; the temperature judgment unit is connected to the temperature acquisition module, the temperature storage unit and the control device.

4. The photovoltaic module operation and maintenance system according to claim 1, characterized in that: The pressure monitoring device comprises a pressure determination module and a pressure collection module; the pressure determination module is connected to the pressure collection module and the control device.

5. The photovoltaic module operation and maintenance system according to claim 4, characterized in that: The pressure judgment module includes a pressure storage unit and a pressure judgment unit; the pressure judgment unit is connected to the pressure acquisition module, the pressure storage unit and the control device.

6. The photovoltaic module operation and maintenance system according to claim 1, characterized in that: The ablation device comprises an ablation water tank; the ablation water tank is connected to the control device.

7. The photovoltaic module operation and maintenance system according to claim 6, characterized in that: The ablation water tank comprises a water tank body and a test kit for carrying an ablation reagent; the test kit and the water tank body are both connected to the control device.

8. The photovoltaic module operation and maintenance system according to claim 6, characterized in that: The ablation device also includes a water tank pressure monitoring module; the water tank pressure monitoring module is connected to the control device and the ablation water tank.

9. The photovoltaic module operation and maintenance system according to claim 6, characterized in that: The ablation device is provided with a nozzle; the nozzle is connected to the ablation water tank and the control device.

10. The photovoltaic module operation and maintenance system according to claim 9, characterized in that: The ablation device further comprises a motion module; the motion module is connected to the control device and drives the nozzle to move under the control of the control device.

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