Amphibious photovoltaic operation and maintenance platform and control method

Abstract

The invention provides an amphibious photovoltaic operation and maintenance platform and a control method, and the platform comprises a working platform, a photovoltaic power generation device, an electric lifting workbench, an electric propeller, and a photovoltaic cleaning water tank. The photovoltaic power generation device is located in the center of the working platform, the electric lifting working table is located at the front end of the working platform, the photovoltaic cleaning water tank is located at the rear end of the working platform, and the electric propeller is located at the tail of the working platform. The energy storage electric control device, the electric hoisting device, the electric ship anchor, the walking device and the floating body are located behind the electric lifting workbench. The invention has the following beneficial effects: the problem of how to walk under terrain conditions such as land, mud flat, shallow water, deep water and the like is solved, and all-terrain passage can be realized; power comes from clean energy provided by a photovoltaic power generation device, and environmental protection and energy conservation are achieved; and a reliable and convenient operation platform is provided for operation and maintenance of the photovoltaic power station under severe conditions.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of photovoltaics, and particularly relates to an amphibious photovoltaic operation and maintenance platform and a control method. BACKGROUND

[0002] In the comprehensive development and utilization mode of the intertidal zone along the coast of China, fish-light complementary photovoltaic power generation is one of the typical applications. The intertidal zone has its own unique natural environment, and the daily operation and maintenance work of the photovoltaic power station built therein also needs to follow its natural law, that is, going out with the tide and returning with the ebb tide. The water level changes greatly, and the operation time is short. In order to prevent the photovoltaic modules from being damaged by the flood tide, the photovoltaic modules and other electrical equipment of the intertidal zone photovoltaic power station are installed on the pipe pile, with a height of more than 4 meters from the ground, and a height of about 2-3 meters from the water during the flood tide. Based on the actual situation of the intertidal zone photovoltaic power station, a working platform that meets the load requirement, can travel between the pipe piles, has an adjustable height, meets the special position requirement on site, and is easy to maintain is needed. The operation and maintenance mechanical device can complete the operation and maintenance work of the photovoltaic area during the tide.

[0003] The intertidal zone goes out to sea, and currently only small inflatable boats or transport ships driven by diesel or gasoline engines are used to transport personnel and materials. The existing transport ships also do not have the ability to pass through multiple terrains and multiple scenes, and the power is not environmentally friendly.

[0004] Therefore, a platform that can normally pass through multiple terrain conditions such as land, beach, underwater, deep water, etc., uses clean energy as a power source, and provides reliable and convenient protection for photovoltaic power station operation and maintenance work in harsh conditions is needed. SUMMARY

[0005] Therefore, the present application aims to provide an amphibious photovoltaic operation and maintenance platform and a control method.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows: An amphibious photovoltaic operation and maintenance platform, comprising a working platform, further comprising a photovoltaic power generation device, an electric lifting workbench, an electric propeller and a photovoltaic cleaning water tank arranged on the working platform; the photovoltaic power generation device is located at the center of the working platform, the electric lifting workbench is located at the front end of the working platform, the photovoltaic cleaning water tank is located at the rear end of the working platform, and the electric propeller is located at the tail of the working platform. Further comprising an energy storage electric control device and an electric hoisting device located behind the electric lifting workbench. Four electric anchors are arranged at each corner of the working platform; the bottom of the working platform is paved with a floating body, and further comprising a walking device fixed with the working platform.

[0007] Further, the photovoltaic power generation device is electrically connected with the energy storage electric control device; the energy storage electric control device is electrically connected with the electric lifting workbench, the electric ship anchor, the walking device, the electric propeller and the electric hoisting device respectively, and provides driving power and signal transmission to each device.

[0008] The energy storage electric control device is connected with the electric lifting workbench, the electric ship anchor, the walking device, the electric propeller and the electric hoisting device through signal lines / control lines, and on one hand, sends action instructions to the devices, and on the other hand, receives feedback signals of execution states of the devices, to complete control-feedback actions.

[0009] Further, the photovoltaic power generation device comprises a support and a solar panel, the bottom of the support is fixed with the workbench, and the top of the support supports the solar panel. The electric lifting workbench comprises a lifting support and a workbench, and the lifting support is controlled by a hydraulic pressure. The electric ship anchor comprises an anchor rod and an electric anchor pile, one end of the anchor rod is fixed on the electric anchor pile, the other end of the anchor rod is a free end with a sharp head, the electric anchor pile is fixed on the workbench, and the electric anchor pile can rotate by 90° along a horizontal rotating shaft to change the direction of the anchor rod.

[0010] Further, the anchor rod of the electric ship anchor is a telescopic anchor rod.

[0011] Further, the walking device is an electric caterpillar track or a wide-tire electric wheel structure, and there are four walking devices in total, which are independently controlled.

[0012] Further, the floating body adopts a multi-layer cylindrical buoy, and each layer is fixed in a cross manner, and the walking device is located below the floating body. Alternatively, the walking device is integrated with a floating support structure, the bottom plate side of the walking device is fixed with a hollow steel barrel structure, and the hollow steel barrel structure can be single or multiple groups. The layout thereof matches the shape of the bottom of the platform.

[0013] Further, the photovoltaic cleaning water tank is matched with a cleaning water gun, and a filtering device is arranged in the cleaning water tank.

[0014] The photovoltaic operation and maintenance includes cleaning and maintenance of photovoltaic components, and the photovoltaic cleaning water tank is a water storage component of a photovoltaic cleaning system, and is matched with a cleaning water gun.

[0015] Further, the energy storage battery in the energy storage electric control device is a photovoltaic battery or a storage battery, which is used to provide power required by the platform.

[0016] The photovoltaic cell can directly receive the charging operation of the photovoltaic power generation device, the storage battery is a common charging battery, when continuous rainy weather occurs and the photovoltaic cell cannot be charged through photovoltaic power generation, the artificial direct replacement of the storage battery can be adopted to complete the power compensation, and the energy storage electric control device is provided with a storage battery replacement interface.

[0017] A control method of an amphibious photovoltaic operation and maintenance platform, comprising the following control steps: S1, the energy storage electric control device is powered on and self-checked; S2, the capacity of the energy storage battery is calculated; S3, if the capacity of the energy storage battery is greater than 4 hours of operation demand, the energy storage electric control device is waited for an instruction; otherwise, a battery replacement reminder signal is sent or the photovoltaic power generation device is charged; S4, the instruction sent by the energy storage electric control device is judged, if it is a land walking instruction, the walking device is powered and a walking instruction is sent; S5, if it is a water navigation instruction, the electric propeller is powered and a walking instruction is sent; if it is a platform operation instruction, the electric anchor is powered and a pile insertion instruction is sent; then, the electric lifting workbench, the electric hoisting device and the photovoltaic cleaning water tank are further driven according to the instruction to execute corresponding operation; S6, after the operation is completed, the next instruction of the energy storage electric control device is waited for; S7, if a stop instruction is received, the operation is ended; otherwise, the instruction of the energy storage electric control device is waited for.

[0018] Further, before the amphibious photovoltaic operation and maintenance platform is given a specified, the photovoltaic station group string to be maintained needs to be monitored and marked, and then the operation and maintenance line is arranged according to the marking result, which specifically includes the following steps: Step 1), the real-time data Ir of solar radiation is monitored, and the theoretical power generation Pa0 of the photovoltaic station system is calculated according to the energy efficiency PR of the photovoltaic station system, Pa0 = Ir × PR; Step 2), the current Is and voltage Vs of the photovoltaic module group string are monitored, and the actual power generation Ps of the photovoltaic station group string is calculated, Ps = Is × Vs; Step 3), the actual power generation of the photovoltaic station group string is sorted in ascending order, and the average value Pa is calculated, Pa = (Ps1 + Ps2 + … + Psn) / n; Step 4), the photovoltaic station group string with power generation less than the average value and ranking in the last 5% is marked; Step 5), the line is arranged according to the location of the marked photovoltaic station group string, the marked photovoltaic station group string is preferentially maintained, and the operation and maintenance walking route of the day is determined; Step 6), the amphibious photovoltaic operation and maintenance platform is operated by the operation and maintenance personnel to complete the operation and maintenance operation according to the walking route of the day. Step 7) Compare the actual power generation of the photovoltaic power station strings after the operation and maintenance are completed with the theoretical power generation to evaluate the operation and maintenance effect.

[0019] The advantages and positive effects of this invention are: This invention employs four sets of electrically powered tracks as the land or tidal flat walking device. Each of the four tracks is independently powered and controlled, enabling forward, backward, and turning movements on land. Multiple layers of interlocking cylindrical floats are used as the buoyancy; the buoyancy is non-adjustable, and the independent cavities enhance safety. This invention solves the problem of how to move in various terrain conditions such as land, mudflats, shallow water, and deep water, enabling all-terrain travel. It can also be used during tidal periods and high tide, facilitating smooth land travel, water navigation, and platform operations. Power comes from clean energy provided by photovoltaic power generation devices, making it environmentally friendly and energy-saving. It provides a reliable and convenient operating platform for the operation and maintenance of photovoltaic power plants under harsh conditions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the operation state of the electric anchor of the present invention being inserted underwater; Figure 3 This is the electrical control diagram of the present invention; Figure 4 This is the control flowchart of the present invention.

[0022] In the picture: 1. Photovoltaic power generation device; 2. Electric lifting work platform; 3. Energy storage and control device; 4. Work platform; 5. Electric anchor; 6. Walking device; 7. Floating body; 8. Electric propeller; 9. Photovoltaic cleaning water tank; 10. Electric hoisting device. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the structure of the device will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and height should be included.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] likeFigure 1 and Figure 2 As shown, the present invention includes a working platform 4, and also includes a photovoltaic power generation device 1, an electric lifting work platform 2, an electric propeller 8 and a photovoltaic cleaning water tank 9 disposed on the working platform 4; the photovoltaic power generation device 1 is located at the center of the working platform 4, the electric lifting work platform 2 is located at the front end of the working platform 4, the photovoltaic cleaning water tank 9 is located at the rear end of the working platform 4, and the electric propeller 8 is located at the tail end of the working platform 4. It also includes an energy storage and control device 3 and an electric hoisting device 10 located behind the electric lifting platform 2; An electric anchor 5 is installed at each of the four corners of the working platform 4; a floating body 7 is laid flat on the bottom of the working platform 4, and the floating body 7 consists of two layers of cylindrical pontoons, each layer being fixed to the other in a crisscross pattern. The walking device 6 consists of four independently controlled electric tracks, located below the floating body 7 and fixed to the working platform 4.

[0029] like Figure 3 As shown, the photovoltaic power generation device 1 is electrically connected to the energy storage and control device 3; the energy storage and control device 3 is electrically connected to the electric lifting platform 2, the electric anchor (5), the walking device 6, the electric propeller 8, and the electric hoisting device 10 respectively, providing driving power to each device and transmitting signals.

[0030] The energy storage and control device 3 is connected to the electric lifting platform 2, electric anchor 5, walking device 6, electric propeller 8, and electric hoisting device 10 via signal lines / control lines. On the one hand, it sends action commands to the device and on the other hand, it receives the execution status feedback signals of the device to complete the control-feedback action.

[0031] The photovoltaic power generation device 1 includes a support frame and a solar panel. The bottom of the support frame is fixed to the working platform 4, and the top of the support frame supports the solar panel. The electric lifting worktable 2 includes a lifting support and a worktable, and the lifting support is hydraulically controlled. The electric anchor 5 includes an anchor rod and an electric anchor pile. One end of the anchor rod is fixed to the electric anchor pile, and the other end of the anchor rod is a free end with a pointed tip. The electric anchor pile is fixed to the working platform 4, and the electric anchor pile can rotate 90° along a horizontal axis to change the direction of the anchor rod, making the anchor rod vertical or horizontal. The anchor rod of the electric anchor 5 is a telescopic anchor rod. The electric anchor 5 provides stability to the platform when floating. There are four electric anchors, located at the four corners of the platform. When the platform moves, the electric anchors can be rotated to make the anchor rods horizontal and shorten them, folding them to the sides of the platform.

[0032] The photovoltaic cleaning water tank 9 is equipped with a cleaning water gun and contains a filter device. Photovoltaic operation and maintenance includes the cleaning and maintenance of photovoltaic modules. The photovoltaic cleaning water tank is the water storage component of the photovoltaic cleaning system. It is used in conjunction with the cleaning water gun and is the core device in the photovoltaic panel cleaning system for storing and supplying cleaning water.

[0033] The energy storage battery in the energy storage control device 3 is either a photovoltaic cell or a storage battery. The photovoltaic cell can directly receive charging from the photovoltaic power generation device, while the storage battery is a regular rechargeable battery. When continuous rainy weather prevents the photovoltaic cell from being recharged by photovoltaic power generation, the storage battery can be manually replaced to complete the recharging. The energy storage control device 3 provides a storage battery swapping interface, which can effectively solve the problem of clean energy replenishment.

[0034] like Figure 4 As shown, the following control methods can be adopted for the aforementioned amphibious photovoltaic operation and maintenance platform: S1. Energy storage control device 3 performs a self-test upon startup. S2. Calculate the energy storage battery capacity; S3 If the energy storage battery capacity is greater than the 4-hour operation requirement, wait for the energy storage control device 3 to issue an instruction; otherwise, issue a battery swap reminder signal or wait for the photovoltaic power generation device to charge. S4. Judge the command issued by the energy storage control device 3. If it is a land walking command, supply power to the walking device 6 and issue a walking command. S5. If it is a navigation command on water, power is supplied to the electric propeller 8 and a travel command is issued; if it is a platform operation command, power is supplied to the electric anchor 5 and a stake-insertion command is issued; then, according to the command, the electric lifting platform 2, the electric hoisting device 10, and the photovoltaic cleaning water tank 9 are further driven to perform the corresponding operations. S6. The operation has been completed. Continue to wait for the energy storage control device 3 to issue the next instruction. S7. If a stop command is received, the operation ends; otherwise, continue waiting for the energy storage control device 3 to issue a command.

[0035] Before assigning a maintenance order to the amphibious photovoltaic (PV) operation and maintenance platform, it is necessary to monitor and mark the PV power plant strings to be maintained, and then arrange the operation and maintenance route according to the marking results. The specific steps include: Step 1), monitor real-time solar irradiance data Ir, and calculate the theoretical power generation Pa0 based on the photovoltaic power station system energy efficiency PR, Pa0 = lr × PR; Step 2), monitor the current Is and voltage Vs of the photovoltaic module string, and calculate the actual power generation Ps of the photovoltaic power station string, Ps = Is × Vs; Step 3) Sort the actual power generation of the photovoltaic power station strings in ascending order and calculate the average value Pa, Pa=(Ps1+Ps2+……+Psn) / n; Step 4) Mark the photovoltaic power plant strings that generate less than the average power and rank in the bottom 5%. Step 5) Arrange the route according to the location of the marked photovoltaic power station strings, prioritize the maintenance of the marked photovoltaic power station strings, and determine the operation and maintenance route for the day; Step 6): Maintenance personnel operate the amphibious photovoltaic maintenance platform to complete maintenance tasks according to the day's walking route; Step 7) Compare the actual power generation of the photovoltaic power station strings after the operation and maintenance are completed with the theoretical power generation to evaluate the operation and maintenance effect.

[0036] The photovoltaic power generation device 1 stores the electrical energy converted from solar radiation into the energy storage and control device 3. The electric lifting platform 2, driven and controlled by the energy storage and control device 3, lifts and lowers itself, facilitating operator access to the elevated photovoltaic device for maintenance. When the platform is in both land-based and water-based travel modes, the anchor 5 can retract and lie flat on both sides of the work platform 4. When the electric lifting platform 2 and electric hoisting device 10 are in operation, the anchor rod of the electric anchor 5 is perpendicular to the ground and inserted into the underwater silt, providing stable support for the work platform 4. When the work platform 4 is in land-based travel mode, the electric tracks, driven and controlled by the energy storage and control device 3, perform forward movement, backward movement, and left or right turning. When the work platform 4 is in water-based travel mode, the electric propeller 8, driven by the energy storage and control system, generates forward thrust through propeller rotation, and the electric propeller can be turned by the action of a hand crank.

[0037] Photovoltaic operation and maintenance (O&M) requires the daily operation and maintenance of photovoltaic power plants, which generally includes the inspection, replacement, and dust cleaning of photovoltaic modules and cables, as well as necessary auxiliary functions such as spare parts hoisting and work platform lifting.

[0038] This invention is equipped with an electric lifting platform and an electric hoisting device, which can lift maintenance personnel when the water level is low, making it convenient for the daily operation and maintenance of photovoltaic power stations.

[0039] This invention employs four sets of electrically powered tracks as the walking device for land or tidal flats. Each track is independently powered and controlled, enabling forward, backward, and turning movements on land. Multiple layers of interlocking cylindrical pontoons are used as floats; these pontoons are non-adjustable, and the independent cavities enhance safety.

[0040] This invention solves the problem of how to move in various terrain conditions such as land, mudflats, shallow water, and deep water, enabling all-terrain travel. It can also be used during tidal periods and high tide, facilitating smooth land travel, water navigation, and platform operations. Power comes from clean energy provided by photovoltaic power generation devices, making it environmentally friendly and energy-saving. It provides a reliable and convenient operating platform for the operation and maintenance of photovoltaic power plants under harsh conditions.

[0041] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An amphibious photovoltaic maintenance platform, comprising a working platform (4), characterized in that: It also includes a photovoltaic power generation device (1), an electric lifting workbench (2), an electric propeller (8) and a photovoltaic cleaning water tank (9) arranged on the working platform (4); the photovoltaic power generation device (1) is located at the center of the working platform (4), the electric lifting workbench (2) is located at the front end of the working platform (4), the photovoltaic cleaning water tank (9) is located at the rear end of the working platform (4), and the electric propeller (8) is located at the tail of the working platform (4); It also includes an energy storage electric control device (3) and an electric hoisting device (10) located behind the electric lifting workbench (2); Four electric anchors (5) are arranged at the four corners of the working platform (4) respectively; the bottom of the working platform (4) is paved with a floating body (7), and a walking device (6) fixed with the working platform (4) is further included.

2. The amphibious photovoltaic maintenance platform according to claim 1, characterized in that: The photovoltaic power generation device (1) is electrically connected with the energy storage electric control device (3); the energy storage electric control device (3) is electrically connected with the electric lifting workbench (2), the electric anchor (5), the walking device (6), the electric propeller (8) and the electric hoisting device (10) respectively, and provides driving power and signal transmission to each device.

3. The amphibious photovoltaic maintenance platform according to claim 2, characterized in that: The photovoltaic power generation device (1) includes a support and a solar panel, the bottom of the support is fixed with the working platform (4), and the top of the support supports the solar panel; The electric lifting workbench (2) includes a lifting support and a workbench, and the lifting support is controlled by hydraulic pressure; The electric anchor (5) includes an anchor rod and an electric anchor pile, one end of the anchor rod is fixed on the electric anchor pile, the other end of the anchor rod is a free end with a sharp head, the electric anchor pile is fixed on the working platform (4), and the electric anchor pile can rotate by 90° around the horizontal rotation shaft to change the direction of the anchor rod.

4. The amphibious photovoltaic maintenance platform according to claim 3, characterized in that: The anchor rod of the electric anchor (5) is a telescopic anchor rod.

5. The amphibious photovoltaic maintenance platform according to claim 2, characterized in that: The walking device (6) is in the form of an electric track or a wide-tire electric wheel structure, and there are totally four walking devices which are independently controlled.

6. The amphibious photovoltaic maintenance platform according to claim 2, characterized in that: The floating body (7) adopts a multi-layer cylindrical floating body with each layer fixed with each other, and the walking device (6) is located below the floating body (7); Or an integrated structure with the floating support of the walking device (6) is adopted, the bottom side of the walking device (6) is fixed with a hollow steel barrel structure, and the hollow steel barrel structure can be single or multiple groups.

7. The amphibious photovoltaic maintenance platform according to claim 2, characterized in that: The photovoltaic cleaning water tank (9) is matched with a cleaning water gun, and a filtering device is arranged in the photovoltaic cleaning water tank (9).

8. The amphibious photovoltaic maintenance platform according to claim 1, characterized in that: The energy storage battery in the energy storage electric control device (3) is a photovoltaic battery or a storage battery. 9.A control method of an amphibious photovoltaic operation and maintenance platform, characterized in that: The following control steps are included: S1, the energy storage electric control device (3) is started and self-checked; S2, the capacity of the energy storage battery is calculated; S3, if the capacity of the energy storage battery is greater than the demand for 4 hours of operation, the energy storage electric control device (3) is waited for an instruction; otherwise, a battery replacement reminder signal is sent or the photovoltaic power generation device is charged; S4, the instruction sent by the energy storage electric control device (3) is judged, if it is a land walking instruction, the walking device (6) is powered and a walking instruction is sent. S5, if it is water navigation instruction, power supply to the electric propeller (8), and issue the marching instruction; if it is platform operation instruction, power supply to the electric anchor (5) and issue the anchoring instruction; then, according to the instruction, further drive the electric lifting workbench (2), the electric hoisting device (10), the photovoltaic cleaning water tank (9), and execute the corresponding operation; S6, after the operation is completed, continue to wait for the next instruction from the energy storage electric control device (3); S7, if the stop instruction is received, end; otherwise, continue to wait for the instruction from the energy storage electric control device (3).

10. The control method according to claim 9, characterized in that: Before the amphibious photovoltaic operation and maintenance platform is given, the photovoltaic station group string to be maintained needs to be monitored and marked, and then the operation and maintenance line is arranged according to the marking result, which specifically includes the following steps: Step 1), monitor the real-time data of solar radiation Ir, and calculate the theoretical power generation Pa0 of the photovoltaic power station system according to the energy efficiency PR of the photovoltaic power station system, Pa0 = Ir x PR; Step 2), monitor the photovoltaic module group string current Is and voltage Vs, and calculate the actual power generation Ps of the photovoltaic power station group string, Ps = Is x Vs; Step 3), sort the actual power generation of the photovoltaic power station group string in ascending order, and calculate the average value Pa, Pa = (Ps1 + Ps2 + … + Psn) / n; Step 4), mark the photovoltaic power station group string whose power generation is less than the average value and ranked in the last 5%; Step 5), arrange the line according to the location of the marked photovoltaic power station group string, preferentially maintain the marked photovoltaic power station group string, and determine the daily operation and maintenance route; Step 6), the operation and maintenance personnel operate the amphibious photovoltaic operation and maintenance platform to complete the operation and maintenance according to the daily route; Step 7), compare the actual power generation with the theoretical power generation of the photovoltaic power station group string after the operation and maintenance is completed, and evaluate the operation and maintenance effect.

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