Island photovoltaic power generation system

Abstract

The invention relates to the technical field of island photovoltaic power generation, and discloses an island photovoltaic power generation system, which comprises a plurality of photovoltaic assemblies, a mounting assembly, a cleaning assembly, a control assembly and an electric quantity management assembly, and is characterized in that the mounting assembly comprises a supporting frame, a mounting frame and a rotating mechanism, and the plurality of photovoltaic assemblies are mounted on the mounting frame; the cleaning assembly comprises a water spraying mechanism and a water conveying mechanism; the control assembly comprises a dust and dirt detection device, a wind pressure detection device, a corner adjusting device and a control module, the dust and dirt detection device is arranged on the mounting frame, the corner adjusting device and the control module are arranged on the supporting frame, and the dust and dirt detection device, the wind pressure detection device and the corner adjusting device are electrically connected with the control module; the control module is electrically connected with the rotating mechanism and the water spraying mechanism; according to the invention, the system can adapt to a severe and changeable photovoltaic power generation environment on an island, and provides continuous and safe power supply for the power utilization facilities on the island.

Description

Technical Field

[0001] The present invention relates to the technical field of island photovoltaic power generation, and in particular to an island photovoltaic power generation system. Background Art

[0002] With the continuous development of photovoltaic power generation technology, its application has gradually become widespread worldwide, becoming an important means to promote a low-carbon and green energy structure. With significant advantages such as clean and efficient operation, flexible installation, and low operating costs, photovoltaic power generation has been widely deployed on various building rooftops, ground-mounted power stations, and in remote areas, forming a relatively mature photovoltaic power generation application system.

[0003] Existing ordinary photovoltaic power generation systems are usually composed of photovoltaic modules, fixed or adjustable brackets and supporting electrical equipment, which can meet the daily electricity needs in a stable environment on land. Some photovoltaic power generation devices are integrated with light tracking technology, which can automatically adjust the direction of photovoltaic panels according to the angle of sunlight to improve power generation efficiency. This type of photovoltaic power generation device is suitable for most conventional power generation scenarios, and the overall structure and function are designed for a stable and controllable power generation environment. However, in island environments, especially remote and unmanned islands, due to extreme conditions such as strong winds, high humidity, salt spray corrosion and inconvenient transportation, existing ordinary photovoltaic power generation devices have significant deficiencies in stable power generation, equipment maintenance, energy storage and allocation, etc., making it difficult to ensure continuous and safe power supply to island power facilities and unable to adapt to the harsh and changeable photovoltaic power generation environment on the island. Summary of the Invention

[0004] In view of this, the present invention provides an island photovoltaic power generation system to solve the problem that photovoltaic power generation devices cannot adapt to the harsh and changeable environment on the island and the island power facilities cannot use electricity continuously and safely.

[0005] In a first aspect, the present invention provides an island photovoltaic power generation system, comprising:

[0006] Multiple photovoltaic panels;

[0007] An installation assembly, the installation assembly comprising: a support frame, a mounting frame and a rotating mechanism, the rotating mechanism being arranged on the support frame, the bottom of the mounting frame being connected to the rotating mechanism, and the mounting frame being suitable for mounting a plurality of the photovoltaic modules;

[0008] A cleaning assembly, comprising: a water spraying mechanism and a water delivery mechanism, wherein the water spraying mechanism is arranged on the mounting frame, and the water delivery mechanism is connected to the water spraying mechanism;

[0009] a control assembly comprising: a dust detection device, a wind pressure detection device, a rotation angle adjustment device, and a control module; the dust detection device is disposed on the mounting frame; the rotation angle adjustment device and the control module are disposed on the supporting frame; the dust detection device, the wind pressure detection device, and the rotation angle adjustment device are connected to a signal input terminal of the control module; and an output terminal of the control module is connected to the rotating mechanism and the water spraying mechanism;

[0010] An electric power management component, wherein the energy storage end of the electric power management component is connected to the photovoltaic component, and the discharge end is connected to the power facility.

[0011] Beneficial effects

[0012] The rotating mechanism can adjust the angle of the photovoltaic module according to the instructions of the control module, effectively improving the efficiency of solar energy reception; the water spraying mechanism and water delivery mechanism in the cleaning component can automatically clean the surface of the photovoltaic module, significantly improving the power generation efficiency of the photovoltaic module and reducing manual operation and maintenance costs.

[0013] The angle adjustment device senses sunlight exposure, ensuring the photovoltaic modules are always facing the sun, improving power generation efficiency. The wind pressure detection device detects whether the photovoltaic power generation system is exposed to strong winds and adjusts the orientation of the photovoltaic modules accordingly, preventing damage to the system. The angle adjustment device and wind pressure detection device provide a sense of the surrounding island environment and adjust the photovoltaic power generation system accordingly. The dust detection device detects contaminants on the photovoltaic module surfaces and controls the water spray mechanism to clean them, ensuring long-term operation and continuous power generation in the island's windy and choppy conditions. The various devices in the control assembly are coordinated through a control module, enabling the photovoltaic system to adapt to the harsh and volatile island environment and enhancing the system's intelligent and automated power generation capabilities. The power management component enables efficient collection, storage, and output of photovoltaic power. The photovoltaic power generation system achieves stable power generation, storage, and supply, ensuring reliable power supply in unmanned and inaccessible island environments, demonstrating its excellent applicability and practical value.

[0014] In an optional embodiment, the island photovoltaic power generation system also includes an operation and maintenance monitoring component arranged on the support frame, and the operation and maintenance monitoring component is connected to the dust detection device, the wind pressure detection device, the angle adjustment device and the power management component.

[0015] Beneficial effects

[0016] The operation and maintenance monitoring component can monitor and provide feedback on the operating status of the dust detection device, wind pressure detection device, angle adjustment device and power management component in real time, improve the fault diagnosis capability and operation and maintenance efficiency of the photovoltaic power generation system, help the photovoltaic power generation system to promptly detect and deal with abnormal problems, reduce downtime, and improve the operational reliability, continuous operation capability and adaptability to the island environment of the photovoltaic power generation system.

[0017] In an optional embodiment, the operation and maintenance monitoring component includes: a rotation monitoring module, a cleaning monitoring module, a voltage monitoring module, a fault reporting module and a wireless transmission module, the signal input end of the rotation monitoring module is connected to the rotation angle adjustment device and the wind pressure detection device, the signal input end of the cleaning monitoring module is connected to the dust detection device, the signal input end of the voltage monitoring module is connected to the power management component, the signal output ends of the rotation monitoring module, the cleaning monitoring module and the voltage monitoring module are connected to the signal input end of the fault reporting module, and the signal output end of the fault reporting module is connected to the wireless transmission module.

[0018] Beneficial effects

[0019] By implementing a rotation monitoring module, a cleaning monitoring module, and a voltage monitoring module, the photovoltaic power generation system can monitor the operating status of the rotation mechanism, the proper functioning of the wind pressure detection device, the cleaning status of the cleaning components, and the voltage parameters of the power management components in real time. The signal outputs of each monitoring module are connected to a fault reporting module. If any monitoring module experiences an anomaly, the fault reporting module quickly generates corresponding fault information, preventing minor issues from escalating into major failures and improving the stability and safety of the photovoltaic power generation system.

[0020] The fault reporting module is connected to the wireless transmission module, which can remotely transmit the fault information to the operation and maintenance management platform or mobile terminal via wireless means in the first time. In an island environment with inconvenient transportation and no permanent personnel, the operating status of the photovoltaic power generation system can still be grasped remotely and in real time.

[0021] In an optional embodiment, the power management component includes: a power transmission device, an electric energy conversion module and an electric energy storage module, the power transmission device includes: an electrode connector and a wire trough rod, two electrode connectors are respectively provided on both sides of the bottom surface of each photovoltaic component, the two ends of the wire trough rod are respectively connected to the two electrode connectors, and the two electrode connectors of two adjacent photovoltaic components are respectively provided with electrode rods and electrode slots at one end away from the wire trough rod, a plurality of photovoltaic components are installed in an array along the length direction of the mounting frame, the electrode rods are connected to the electrode slots of adjacent photovoltaic components, the electrode rods are provided on one side of the mounting frame, the electrode rods on the mounting frame are connected to the electrode slots of the photovoltaic components close to the side of the mounting frame, and the electric energy conversion module is connected to the electrode rods on the mounting frame.

[0022] Beneficial effects

[0023] The transmission system utilizes a docking system of electrode connectors and cable trunking rods, enabling easy connection between individual PV modules, forming a series circuit path and enhancing the wiring flexibility of the PV power generation system. Adjacent PV modules are connected by plugging the electrode rods into the electrode slots, simplifying the power transmission path, enhancing vibration resistance between modules, and reducing energy loss during transmission.

[0024] The power conversion module is connected to the electrode pole, quickly converting the direct current transmitted by the transmission device into storable or usable alternating current. In conjunction with the power storage module, a stable and efficient power management system is built, enhancing the energy independence and continuous power supply capabilities of the photovoltaic power generation system in remote areas such as islands.

[0025] In an optional embodiment, the dust detection device includes: a detection plate and an infrared sensor, the detection plate is arranged at one end of the mounting frame, and the infrared sensor is arranged on the detection plate.

[0026] Beneficial effects

[0027] The infrared sensor, mounted on the inspection board and facing the surface of the PV module, determines the cleanliness of the PV module surface by emitting and receiving infrared light signals. The infrared sensor transmits the signal to the control module, which in turn controls the water supply mechanism to clean the PV module surface.

[0028] In an optional embodiment, the rotation angle adjustment device includes: a timer, and the timer is arranged on the support frame.

[0029] Beneficial effects

[0030] The timer can automatically send a control signal according to the preset time period, driving the rotating mechanism to adjust the angle of the photovoltaic module so that it always maintains the optimal lighting angle in different time periods, effectively improving the power generation efficiency of the photovoltaic power generation system.

[0031] In an optional embodiment, the mounting frame includes: a bottom frame, a support member and a limit member, the bottom frame is connected to the rotating mechanism, a plurality of support members are arranged at intervals on the bottom frame, the bottom and top of the bottom frame have limit grooves, the support members located between the bottom and top of the bottom frame are each provided with the limit member, the limit grooves are provided on both sides of the limit member, and a row of the photovoltaic components is installed between two adjacent limit grooves.

[0032] Beneficial effects

[0033] The bottom frame is the main body of the mounting frame and is connected to the rotation mechanism to ensure that the mounting frame remains stable during the rotation process;

[0034] Multiple support members are arranged at intervals on the bottom frame to provide multi-point support for the photovoltaic modules. The limit grooves at the bottom and top of the bottom frame cooperate with the limit grooves on both sides of the upper limit members of the support members to effectively position and restrain the photovoltaic modules, ensuring that each row of photovoltaic modules maintains a consistent position and angle during installation, preventing the photovoltaic modules from being displaced or loosened due to changes in the island environment.

[0035] In an optional embodiment, the rotating mechanism includes: a protective box, a driving motor, a reduction gearbox and a rotating shaft, the protective box is arranged on the supporting frame, the reduction gearbox and the driving motor are arranged in the protective box, one end of the rotating shaft is connected to the reduction gearbox, and the other end is connected to the bottom of the bottom frame, the driving end of the driving motor is connected to the input end of the reduction gearbox, the output end of the reduction gearbox is connected to the rotating shaft, and the bottom of the bottom frame is connected to the rotating shaft.

[0036] Beneficial effects

[0037] The protective box effectively encapsulates the drive motor and reduction gearbox, preventing them from being corroded by external factors such as salt spray, moisture and sand, thus extending their service life.

[0038] The drive motor amplifies and smoothly transmits the output torque through the reduction gearbox, so that the rotating shaft can stably drive the bottom frame to achieve angle adjustment.

[0039] In an optional embodiment, an annular groove is provided on the top surface of the protective box, and a roller is provided on the bottom of the bottom frame, and the roller is rotatably connected to the annular groove.

[0040] In an optional embodiment, the water spray mechanism includes: a water spray plate and a water sprayer, the water spray plate is arranged at the top of the bottom frame, and a plurality of water spray ports are spaced apart on the water spray plate;

[0041] The water delivery mechanism includes a water delivery hose and a pressurized water pump. One end of the water delivery hose is connected to the water spray plate, and the other end is connected to the pressurized water pump.

[0042] Beneficial effects

[0043] The water spray plate is located at the top of the bottom frame and can cover the photovoltaic modules on the installation assembly. Multiple water spray ports are arranged at intervals to ensure that the cleaning water is evenly sprayed onto the surface of the photovoltaic modules, avoiding local dust accumulation that affects the power generation efficiency.

[0044] The water spray mechanism can be activated on demand to effectively remove pollutants such as dust, salt spray and bird droppings on the surface of the photovoltaic panels, keep the surface of the photovoltaic modules clean, and improve the light absorption rate, thereby ensuring the continuous and stable power generation efficiency of the photovoltaic modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 This is a schematic structural diagram of an island photovoltaic power generation system according to an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of an installation framework structure of an island photovoltaic power generation system according to an embodiment of the present invention;

[0048] Figure 3 This is a schematic diagram of the back structure of an island photovoltaic power generation system according to an embodiment of the present invention;

[0049] Figure 4 is a schematic structural diagram of a photovoltaic module according to an embodiment of the present invention;

[0050] Figure 5 Schematic diagram of the structure of the rotating mechanism of an embodiment of the present invention;

[0051] Figure 6 A schematic diagram of an operation and maintenance monitoring process of an island photovoltaic power generation system according to an embodiment of the present invention;

[0052] Figure 7 The figure is a schematic diagram of the electric energy conversion process of an island photovoltaic power generation system according to an embodiment of the present invention.

[0053] Description of reference numerals:

[0054] 1. Photovoltaic module, 11. Slider, 12. Insert, 13. Slot;

[0055] 21. Support frame, 22. Mounting frame, 221. Bottom frame, 222. Support member, 223. Limit member, 224. Electric telescopic rod, 23. Rotating mechanism, 231. Protective box, 232. Driving motor, 233. Reducer, 234. Rotating shaft, 235. Annular groove, 236. Roller;

[0056] 31. Water spray mechanism, 311. Water spray plate, 312. Water sprinkler, 32. Water delivery mechanism, 321. Water delivery hose, 322. Pressurized water pump;

[0057] 41. Dust detection device, 411. Detection plate, 412. Infrared sensor, 42. Wind pressure detection device;

[0058] 51. Power transmission device, 511. Electrode connector, 512. Wire trough rod, 513. Electrode plug rod, 514. Electrode slot. DETAILED DESCRIPTION

[0059] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0060] The following combination Figures 1 to 7 , describing embodiments of the present invention.

[0061] According to an embodiment of the present invention, on the one hand, there is provided an island photovoltaic power generation system, comprising: a plurality of photovoltaic modules 1, an installation module, a cleaning module, a control module and a power management module, the installation module comprising: a support frame 21, a mounting frame 22 and a rotating mechanism 23, the rotating mechanism 23 is arranged on the support frame 21, the bottom of the mounting frame 22 is connected to the rotating mechanism 23, and the mounting frame 22 is suitable for mounting a plurality of photovoltaic modules 1; the cleaning module comprising: a water spraying mechanism 31 and a water delivery mechanism 32, the water spraying mechanism 31 is arranged on the mounting frame 22, and the water delivery mechanism 32 is connected to the water spraying mechanism 31; the control module comprising: a dust detection device 41, a wind pressure detection device 42, an angle adjustment device and a control module, the dust detection device 41 is arranged on the mounting frame 22, the angle adjustment device and the control module are arranged on the support frame 21, the dust detection device 41, the wind pressure detection device 42 and the angle adjustment device are connected to the signal input end of the control module, and the output end of the control module is connected to the rotating mechanism 23 and the water spraying mechanism 31; the energy storage end of the power management module is connected to the photovoltaic module 1, and the discharge end is connected to the power facility.

[0062] Specifically, the support frame 21 provides a structural support foundation for the photovoltaic power generation system. There are four columns at the four corners of the bottom of the support frame 21, which are fixed to the ground by embedded parts, and crossbeams are used to weld adjacent columns. The rotating mechanism 23 is arranged on the support frame 21, and its output end is fixedly connected to the bottom of the mounting frame 22 to drive the mounting frame 22 to rotate. Multiple photovoltaic component 1 mounting frames are arranged on the mounting frame 22 in an inclined state. The rotating mechanism 23 drives the mounting frame 22 to rotate to adjust the orientation angle of the photovoltaic component 1. Optionally, the support frame 21 and the mounting frame 22 can be made of anti-corrosion metal material to adapt to the high humidity and high salt environment of the island.

[0063] The water delivery mechanism 32 is connected to the water spraying mechanism 31 to provide a pressurized water source for the water spraying mechanism 31 to ensure that the water flow can effectively flush the surface of the photovoltaic module 1. The water spraying mechanism 31 is installed above the mounting frame 22, and its water spray port is facing the surface of the photovoltaic module 1. It can spray clean water to cover the surface of the photovoltaic module 1 for cleaning, and can remove dirt such as dust, salt or bird droppings, effectively maintain the cleanliness of the surface of the photovoltaic module 1, and improve the light absorption efficiency.

[0064] The dust detection device 41 is installed on the mounting frame 22 and can detect the degree of contamination on the surface of the photovoltaic module 1, thereby determining whether the water spray mechanism 31 needs to be turned on. The angle adjustment device can drive the support frame 21 to rotate along the movement trajectory of the sun, so that the photovoltaic module 1 can obtain the maximum light intensity. The wind pressure detection device 42 is set in the island environment around the photovoltaic power generation system and can detect the wind speed, wind direction, temperature, margin and solar radiation around the photovoltaic power generation system. The micro-meteorological station is connected to the anti-typhoon monitoring module. The anti-typhoon monitoring module set on the support frame 21 is connected to the control module. When the micro-meteorological station detects a typhoon around the photovoltaic power generation system, it will control the support frame 21 to rotate through the control module so that the length direction of the photovoltaic module 1 is parallel to the typhoon direction, thereby reducing the damage caused by the typhoon to the photovoltaic power generation system.

[0065] The control module is arranged on the support frame 21. As the core control component of the photovoltaic power generation system, the control module can perform angle adjustment or cleaning tasks on the photovoltaic power generation system according to the sensor signals sent by the dust detection device 41, the wind pressure detection device 42 and the angle adjustment device, thereby realizing the automatic operation and maintenance of the photovoltaic power generation system.

[0066] The energy storage end of the power management component is connected to the photovoltaic component 1, and is used to receive and store the electric energy generated by the photovoltaic component 1. The discharge end is used to supply power to external power facilities to ensure the stable energy output of the photovoltaic power generation system.

[0067] The wind pressure detection device 42 can detect the wind pressure changes in the current island environment in real time and feed back the collected results to the control module. When the wind is strong or changes suddenly, the system can actively adjust the windward angle of the photovoltaic module 1 and adjust the photovoltaic module 1 to a safe position to prevent strong winds from damaging the photovoltaic power generation system. The dust detection device 41 is used to sense the pollution on the surface of the photovoltaic module 1. When dust, bird droppings or salt deposits exceeding the set threshold are detected, the control module will automatically activate the cleaning component. The cleaning component sprays clean water to cover the surface of the photovoltaic module 1, effectively removing attachments and restoring the light transmittance and working efficiency of the photovoltaic module 1. The power management component can unify the electrical energy generated by the photovoltaic module 1 and output it stably, provide compensatory power supply when the load demand fluctuates or the sunshine is insufficient, and ensure that the island's electrical equipment obtains continuous and stable power support. It is suitable for photovoltaic power generation and facility power supply in unmanned and difficult-to-operate environments such as islands.

[0068] In one embodiment, the mounting frame 22 includes: a bottom frame 221, a support member 222 and a limit member 223. The bottom frame 221 is connected to the rotating mechanism 23. A plurality of support members 222 are arranged at intervals on the bottom frame 221. The bottom and top ends of the bottom frame 221 have limit grooves. The support members 222 located between the bottom and top ends of the bottom frame 221 are each provided with a limit member 223. The limit member 223 has limit grooves on both sides, and a row of photovoltaic modules 1 is installed between two adjacent limit grooves.

[0069] Specifically, the bottom of the bottom frame 221 is connected to the rotating mechanism 23. When viewed along its length, it forms a triangular structure, with its upper end forming a downward-facing mounting position. The support members 222 are rectangular strips. Three support members 222 are spaced apart along the width of the top of the bottom frame 221. The support members 222 are fixed to the bottom frame 221 by welding, thereby supporting and holding the photovoltaic module 1.

[0070] The bottom and top of the bottom frame 221 are each provided with a retaining groove. A retaining member 223 is provided on the middle support member 222, and retaining grooves are also provided on both sides of the retaining member 223. The space between two adjacent retaining grooves forms a horizontal mounting area for a row of photovoltaic modules 1, allowing for a neat arrangement of the modules 1 in a row.

[0071] Slide bars 11, which match the retaining slots, are located at the top and bottom ends of the photovoltaic modules 1. Insert blocks 12 and slots 13 are located at the left and right ends of the photovoltaic modules 1, respectively. Adjacent photovoltaic modules 1 are connected by insert blocks 12 and slots 13. Multiple photovoltaic modules 1 are inserted into the retaining slots along the length of the bottom frame 221 via the slide bars 11. Adjacent photovoltaic modules 1 are connected and secured by insert blocks 12 and slots 13, forming a stable horizontal connection, enhancing the integrity of the photovoltaic modules 1 and simplifying the installation process.

[0072] Furthermore, electric telescopic rods 224 are provided at the bottom and top of the bottom frame 221. The electric telescopic rod 224 is connected to a diagonal rod on the bottom frame 221, and a rubber pad is installed on the side of the diagonal rod closest to the photovoltaic module 1. The electric telescopic rod 224 can drive the diagonal rod to extend and retract along the length of the bottom frame 221, opening or closing the mounting position on the bottom frame 221.

[0073] In this embodiment, a retaining groove slides with the slide bar 11, and an electric telescopic rod 224 drives the diagonal rod to automatically open or clamp. This allows for quick insertion and removal of the photovoltaic panels 1 without tools, reducing the assembly and removal time of a single row of photovoltaic panels 1 to less than 2 minutes, significantly improving assembly efficiency. The rubber pads on the diagonal rod provide effective anti-slip and anti-vibration properties. Combined with the precise clamping force control of the electric telescopic rod 224 (preset at 500N), this ensures a secure connection of the photovoltaic panels 1 even in strong island winds, with typhoon resistance up to level 14.

[0074] In one embodiment, the rotating mechanism 23 includes: a protective box 231, a driving motor 232, a reduction gearbox 233 and a rotating shaft 234. The protective box 231 is arranged on the supporting frame 21, the reduction gearbox 233 and the driving motor 232 are arranged in the protective box 231, one end of the rotating shaft 234 is connected to the reduction gearbox 233, and the other end is connected to the bottom of the bottom frame 221, the driving end of the driving motor 232 is connected to the input end of the reduction gearbox 233, the output end of the reduction gearbox 233 is connected to the rotating shaft 234, and the bottom of the bottom frame 221 is connected to the rotating shaft 234.

[0075] Specifically, the protective housing 231 is fixed to the support frame 21 and comprises a drive housing and a control housing. The drive housing is positioned above the control housing, with its bottom surface affixed to the top surface of the control housing. The drive housing encloses and protects the drive motor 232 and reduction gearbox 233, protecting them from corrosion caused by factors such as salt spray, moisture, and sandstorms in the island environment. The reduction gearbox 233 is bolted to the inner bottom end of the drive housing. The drive end of the drive motor 232 is connected to the input end of the reduction gearbox 233, which delivers smooth, low-speed, high-torque power.

[0076] One end of the rotating shaft 234 is connected to the output of the reduction gearbox 233, while the other end passes through the drive box and connects to the bottom of the base frame 221, enabling direct power transmission. The drive motor 232 outputs power through the reduction gearbox 233, driving the rotating shaft 234 to rotate, which in turn drives the base frame 221 to rotate, thereby achieving angle adjustment of the entire mounting frame 22 and the multiple photovoltaic modules 1 mounted thereon.

[0077] The control box houses the control module and the angle adjustment device. A sealed door with a gasket on one side ensures stable operation of the components within the control box even in high-humidity, high-salt-fog environments. A control panel is installed inside the sealed door. This panel is electrically connected to the electric telescopic rod 224 and the power management component via wires. This allows maintenance personnel to directly control the electric telescopic movement and view the photovoltaic power storage status, enabling rapid installation of the photovoltaic panel 1 and checking its remaining power reserve.

[0078] In one embodiment, the angle adjustment device includes: a timer, which is arranged on the support frame 21.

[0079] Specifically, the timer can control the start and stop of the rotating mechanism 23 and the adjustment of the angle of the photovoltaic assembly 1 according to a preset time interval.

[0080] The timer can be pre-set for multiple time periods, such as setting angle variation intervals based on sunrise and sunset times. This ensures that the photovoltaic module 1 always faces the main direction of solar radiation during different time periods, thereby improving light utilization efficiency. The timer outputs a control signal to the control module, which then activates the rotation mechanism 23 based on the time signal, achieving timed rotation of the mounting frame 22.

[0081] In this embodiment, the timer can realize automatic tracking and resetting of the sun by the photovoltaic module 1 from 5 am to 8 pm, solving the problem of limited light intensity on the island at any time. The average daily light exposure time is extended by 40% compared with the fixed installation of the photovoltaic module 1, and the power generation efficiency is improved by 25%-30%.

[0082] In this embodiment, the drive motor 232, reduction gearbox 233, and rotating shaft 234 cooperate to achieve 221±180° rotation of the base frame. The control box and drive box are made of 304 stainless steel (WF2 grade corrosion resistance) with a fluorocarbon spray coating, achieving an IP55 protection level, effectively resisting high salt fog corrosion on islands.

[0083] The wind pressure detection device 42 includes a micro-weather station and a typhoon-resistant monitoring module. The micro-weather station is set up in the island environment around the photovoltaic power generation system.

[0084] In this embodiment, the micro-meteorological station can detect wind speed and direction in real time. When the wind speed exceeds 24.5m / s, the anti-typhoon monitoring module sends a control signal to adjust the windward angle of the photovoltaic component 1 to be parallel to the wind direction, reducing the wind resistance area by 60%. It has been tested and verified that it can withstand a level 14 typhoon, and the survival rate of the photovoltaic power generation system reaches 95% or above.

[0085] In one embodiment, an annular groove 235 is formed on the top surface of the protection box 231 , and a roller 236 is provided on the bottom of the bottom frame 221 , and the roller 236 is rotatably connected to the annular groove 235 .

[0086] Specifically, an annular groove 235 is defined on the top surface of the drive box, and a plurality of rollers 236 are disposed on the bottom of the bottom frame 221. The rollers 236 are disposed within the annular groove 235 and are rotatably connected thereto. When the drive motor 232 drives the rotating shaft 234 to rotate, the bottom frame 221 is driven to rotate about the axis of the rotating shaft 234, and the rollers 236 roll within the annular groove 235 on the top surface of the protective box 231. The bottom frame 221 is rotatably connected to the annular groove 235 via the rollers 236, balancing stability and rotational flexibility, reducing mechanical wear, and extending the lifespan of the rotating mechanism 23 to over 10 years. Furthermore, the annular groove 235 serves as a useful limiting guide, preventing the bottom frame 221 from shifting or shaking due to external forces or typhoon interference.

[0087] In one embodiment, the water spray mechanism 31 includes: a water spray plate 311 and a water sprayer 312. The water spray plate 311 is disposed at the top of the bottom frame 221. A plurality of water spray ports are spaced apart on the water spray plate 311.

[0088] The water delivery mechanism 32 includes a water delivery hose 321 and a pressurized water pump 322 . One end of the water delivery hose 321 is connected to the water spray plate 311 , and the other end is connected to the pressurized water pump 322 .

[0089] Specifically, a water spray plate 311 is bolted to the top of the base frame 221. It features multiple evenly spaced water outlets. Water sprinklers 312 are located within these outlets, spraying cleaning water onto the surface of the photovoltaic modules 1 below. One end of a water hose 321 is connected to the water spray plate 311, providing a steady supply of cleaning water to each sprinkler 312. The other end is connected to a pressurized water pump 322. The pressurized water pump 322 draws water from a water storage device, providing a stable water source for the water hose 321 and sufficient water pressure for the sprinklers 312.

[0090] In one embodiment, the dust detection device 41 includes: a detection board 411 and an infrared sensor 412 . The detection board 411 is disposed at one end of the mounting frame 22 , and the infrared sensor 412 is disposed on the detection board 411 .

[0091] Specifically, an infrared sensor 412 is mounted on the detection board 411, and the sensing direction of the infrared sensor 412 is toward the surface of the photovoltaic module 1. The infrared sensor 412 determines the cleanliness of the surface of the photovoltaic module 1 by emitting infrared light and receiving its reflected signal.

[0092] When the surface of the photovoltaic module 1 is clean, the reflection intensity of the infrared light is strong, and the signal received by the infrared sensor 412 is relatively stable; however, when pollutants such as dust, bird droppings or salt spray accumulate on the surface of the photovoltaic module 1, the reflection characteristics change, and the signal value detected by the sensor deviates from the set threshold. The control module can then determine whether the degree of pollution exceeds the limit and issue a cleaning instruction.

[0093] In this embodiment, the infrared emitter can detect obstructions such as bird droppings, dust accumulation, and snow accumulation in real time (detection accuracy ≥ 0.5mm), and achieve high-pressure cleaning (pressure 0.3-0.5MPa) on the surface of the photovoltaic module 1 through the water spray mechanism 31, with a cleaning coverage rate of 100%, and can deal with complex pollutants such as dust and bird droppings commonly found on islands without human intervention.

[0094] In one embodiment, the power management component includes: a power transmission device 51, an electric energy conversion module and an electric energy storage module. The power transmission device 51 includes: an electrode connector 511 and a wire trough rod 512. Two electrode connectors 511 are respectively provided on both sides of the bottom surface of each photovoltaic module 1. The two ends of the wire trough rod 512 are respectively connected to the two electrode connectors 511, and the two electrode connectors 511 of the two adjacent photovoltaic modules 1 are respectively provided with an electrode plug 513 and an electrode slot 514 at one end away from the wire trough rod 512. Multiple photovoltaic modules 1 are installed in an array along the length direction of the mounting frame 22. The electrode plug 513 is connected to the electrode slot 514 of the adjacent photovoltaic modules 1. An electrode plug 513 is provided on one side of the mounting frame 22. The electrode plug 513 on the mounting frame 22 is connected to the electrode slot 514 of the photovoltaic module 1 close to the side of the mounting frame 22. The electric energy conversion module is connected to the electrode plug 513 on the mounting frame 22.

[0095] Specifically, two rectangular electrode connectors 511 are provided on either side of the bottom surface of each photovoltaic module 1. The ends of a wire trough rod 512 are connected to the two electrode connectors 511. Multiple photovoltaic modules 1 are arranged in an array along the length of the mounting frame 22. The electrode rods 513 and electrode slots 514 of two adjacent photovoltaic modules 1 are docked and inserted, and the electrode rods 513 are always located on the same side, facilitating centralized wiring and maintenance of the photovoltaic modules 1. A set of electrode rods 513 is provided on the mounting frame 22 to input the power generated by each photovoltaic module 1 into the power conversion module, facilitating the unified collection of power.

[0096] The power conversion module converts the direct current (DC) generated by each photovoltaic module 1 into alternating current (AC) suitable for storage or power supply. A portion of this converted AC power is used for daily power generation by the island's power facilities, while the remaining portion is output to the power storage module to store any excess power after meeting the island's power needs. At night, when the photovoltaic modules 1 are not generating power, the energy stored in the energy storage module continues to power the island's power facilities, meeting their nighttime power needs.

[0097] In one embodiment, the island photovoltaic power generation system further includes an operation and maintenance monitoring component disposed on the support frame 21 , and the operation and maintenance monitoring component is connected to the dust detection device 41 , the wind pressure detection device 42 , the angle adjustment device and the power management component.

[0098] Specifically, the operation and maintenance monitoring component is installed in the support frame 21, which is internally configured with multiple sensors or analysis units for status acquisition. These analysis units are electrically connected to the dust detection device 41, the wind pressure detection device 42, the angle adjustment device and the power management component respectively, and can collect data and parameters on the detection results of the dust detection device 41, the changes in wind pressure around the photovoltaic power generation system, the execution of the angle adjustment instructions, and whether the power output or energy storage status of the power management component is abnormal. When the collected data is abnormal or the parameters deviate from the set range, the operation and maintenance monitoring component can obtain the relevant abnormal signals in real time and feedback the abnormal situation to the back-end monitoring platform, so that the operation and maintenance personnel can promptly determine the source of the problem and take operation and maintenance measures for the photovoltaic power generation system.

[0099] In one embodiment, the operation and maintenance monitoring component includes: a rotation monitoring module, a cleaning monitoring module, a voltage monitoring module, a fault reporting module and a wireless transmission module. The signal input end of the rotation monitoring module is connected to the rotation angle adjustment device and the wind pressure detection device 42, the signal input end of the cleaning monitoring module is connected to the dust detection device 41, the signal input end of the voltage monitoring module is connected to the power management component, the signal output ends of the rotation monitoring module, the cleaning monitoring module and the voltage monitoring module are connected to the signal input end of the fault reporting module, and the signal output end of the fault reporting module is connected to the wireless transmission module.

[0100] Specifically, the signal input end of the rotation monitoring module is connected to the angle adjustment device and the wind pressure detection device 42, and can monitor in real time the angle adjustment status of the angle adjustment device or the wind pressure detection device 42 when controlling the rotation of the photovoltaic component 1, such as whether the adjustment angle of the photovoltaic component 1 is in place, whether the transfer execution process is abnormal, etc.; the signal input end of the cleaning monitoring module is connected to the dust detection device 41, and can monitor whether the dust detection device 41 is operating normally, and at the same time obtain the change in the degree of pollution before and after cleaning of the photovoltaic component 1 to judge the effectiveness of the cleaning operation of the water spray mechanism 31; the signal input end of the voltage monitoring module is connected to the power management component, and is used to monitor the voltage status of the energy storage end and the discharge end of the power management component and the conversion process of photovoltaic power generation DC into AC power, to ensure the stability and safety of the power supply and storage process of the photovoltaic power generation system.

[0101] Optionally, the monitoring modules can operate collaboratively through an integrated embedded intelligent monitoring system, which can be built on an industrial-grade embedded master control platform (such as an STM32 microcontroller or ARM Cortex-M series chip). The monitoring system is pre-configured with multi-channel data acquisition programs and judgment logic, and connects to various modules in the operation and maintenance monitoring component through signal interfaces to collect operational data in real time. The monitoring system can concurrently process multiple sensor inputs and determine whether there are any abnormalities in the photovoltaic power generation system based on set thresholds and logical conditions.

[0102] When the photovoltaic power generation system fails to adjust the angle, cleaning is ineffective, or the output voltage of photovoltaic module 1 is abnormal, the fault reporting module will automatically summarize the relevant monitoring information, generate specific fault prompts or maintenance instructions, and remotely send the fault information to the background control system or mobile terminal through the wireless transmission module, so that the operation and maintenance personnel can grasp the equipment operation status at the first time.

[0103] Working process:

[0104] Under sunlight, the photovoltaic modules 1 begin to receive sunlight and convert it into direct current (DC) electricity. The photovoltaic modules 1 are mounted in a row array on a mounting frame 22, which is driven by a rotating mechanism 23. At 5:00 a.m., a timer in the control box sets the time, and the control module controls the forward rotation of the drive motor 232. This rotation drives the gears in the reduction gear 233, which in turn drives the rotating shaft 234, ensuring that the photovoltaic modules 1 always maintain an optimal light reception angle. At 8:00 p.m., the control module automatically controls the reverse rotation of the drive motor 232, thereby controlling the rotation and reset of the photovoltaic modules 1. Simultaneously, the control module determines whether the orientation of the photovoltaic modules 1 needs to be adjusted based on the wind pressure data fed back by the wind pressure detection device 42.

[0105] The electricity generated by PV panels 1 is transmitted to the power conversion module via the electrode connector 511 and wire trough rods 512 at its base. The module then connects to the electrode slots 514 of adjacent panels via electrode rods 513, forming a modular connection to form a stable power transmission path. After processing by the power conversion module, the electricity generated by PV panels 1 is primarily used by island power facilities. The remaining power is stored in the power storage module, which continues to provide power to island power facilities at night, ensuring stable power output.

[0106] When the dust detection device 41 detects that the dust accumulation on the surface of the photovoltaic module 1 exceeds a preset threshold, the control module issues a cleaning command, the pressurized water pump 322 is started, and the cleaning water is transported to the water spray plate 311 at the top of the bottom frame 221 through the water hose 321. The cleaning water is evenly sprayed onto the surface of the photovoltaic module 1 through the water nozzle to achieve automatic cleaning.

[0107] During the normal operation of the photovoltaic power generation system, the operation and maintenance monitoring component monitors in real time the angle adjustment of the rotating mechanism 23, the dust and dirt status on the surface of the photovoltaic component 1, and the voltage during the photovoltaic power generation and electricity conversion process; if an abnormality is found, the fault reporting module will generate corresponding fault information and send the fault data to the remote operation and maintenance terminal via the wireless transmission module so that the operation and maintenance personnel can handle and maintain it in time.

[0108] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An island photovoltaic power generation system, characterized in that: include: A plurality of photovoltaic modules (1); An installation assembly, the installation assembly comprising: a support frame (21), a mounting frame (22) and a rotating mechanism (23), the rotating mechanism (23) being arranged on the support frame (21), the bottom of the mounting frame (22) being connected to the rotating mechanism (23), and the mounting frame (22) being suitable for mounting a plurality of the photovoltaic modules (1); A cleaning assembly, comprising: a water spraying mechanism (31) and a water delivery mechanism (32), wherein the water spraying mechanism (31) is arranged on the mounting frame (22), and the water delivery mechanism (32) is connected to the water spraying mechanism (31); A control assembly, comprising: a dust detection device (41), a wind pressure detection device (42), a rotation angle adjustment device, and a control module; the dust detection device (41) is arranged on the mounting frame (22); the rotation angle adjustment device and the control module are arranged on the supporting frame (21); the dust detection device (41), the wind pressure detection device (42), and the rotation angle adjustment device are connected to a signal input end of the control module; and an output end of the control module is connected to the rotating mechanism (23) and the water spraying mechanism (31); An electric power management component, wherein the energy storage end of the electric power management component is connected to the photovoltaic component (1), and the discharge end is connected to the power facility.

2. The island photovoltaic power generation system according to claim 1, characterized in that: It also includes an operation and maintenance monitoring component arranged on the support frame (21), the operation and maintenance monitoring component being connected to the dust detection device (41), the wind pressure detection device (42), the rotation angle adjustment device and the power management component.

3. The island photovoltaic power generation system according to claim 2, characterized in that: The operation and maintenance monitoring component includes: a rotation monitoring module, a cleaning monitoring module, a voltage monitoring module, a fault reporting module and a wireless transmission module, wherein the signal input end of the rotation monitoring module is connected to the rotation angle adjustment device and the wind pressure detection device (42), the signal input end of the cleaning monitoring module is connected to the dust detection device (41), the signal input end of the voltage monitoring module is connected to the power management component, the signal output ends of the rotation monitoring module, the cleaning monitoring module and the voltage monitoring module are connected to the signal input end of the fault reporting module, and the signal output end of the fault reporting module is connected to the wireless transmission module.

4. The island photovoltaic power generation system according to claim 1, characterized in that: The power management component comprises: a power transmission device (51), an electric energy conversion module and an electric energy storage module; the power transmission device (51) comprises: an electrode connector (511) and a line slot rod (512); two electrode connectors (511) are respectively provided on both sides of the bottom surface of each photovoltaic component (1); two ends of the line slot rod (512) are respectively connected to the two electrode connectors (511); and the ends of the two electrode connectors (511) of two adjacent photovoltaic components (1) away from the line slot rod (512) are respectively provided with an electrode plug rod (513) and an electrode slot ( 514), a plurality of photovoltaic modules (1) are installed in an array along the length direction of the installation frame (22), the electrode rods (513) are connected to the electrode slots (514) of adjacent photovoltaic modules (1), the electrode rods (513) are arranged on one side of the installation frame (22), the electrode rods (513) on the installation frame (22) are connected to the electrode slots (514) of the photovoltaic modules (1) close to the side of the installation frame (22), and the electric energy conversion module is connected to the electrode rods (513) on the installation frame (22).

5. The island photovoltaic power generation system according to claim 1, characterized in that: The dust detection device (41) comprises: a detection plate (411) and an infrared sensor (412); the detection plate (411) is arranged at one end of the mounting frame (22); and the infrared sensor (412) is arranged on the detection plate (411).

6. The island photovoltaic power generation system according to claim 1, characterized in that: The rotation angle adjustment device comprises a timer, and the timer is arranged on the support frame (21).

7. The island photovoltaic power generation system according to claim 1, characterized in that: The mounting frame (22) comprises: a bottom frame (221), a support member (222) and a limit member (223); the bottom frame (221) is connected to the rotating mechanism (23); a plurality of support members (222) are arranged at intervals on the bottom frame (221); the bottom and top ends of the bottom frame (221) are provided with limit slots; the support members (222) located between the bottom and top ends of the bottom frame (221) are each provided with the limit member (223); the limit slots are provided on both sides of the limit member (223); and a row of the photovoltaic modules (1) is installed between two adjacent limit slots.

8. The island photovoltaic power generation system according to claim 7, characterized in that: The rotating mechanism (23) comprises: a protective box (231), a driving motor (232), a reduction box (233) and a rotating shaft (234); the protective box (231) is arranged on the supporting frame (21); the reduction box (233) and the driving motor (232) are arranged in the protective box (231); one end of the rotating shaft (234) is connected to the reduction box (233), and the other end is connected to the bottom of the bottom frame (221); the driving end of the driving motor (232) is connected to the input end of the reduction box (233); the output end of the reduction box (233) is connected to the rotating shaft (234); and the bottom of the bottom frame (221) is connected to the rotating shaft (234).

9. The island photovoltaic power generation system according to claim 8, characterized in that: An annular groove (235) is provided on the top surface of the protection box (231), and a roller (236) is provided at the bottom of the bottom frame (221), and the roller (236) is rotatably connected to the annular groove (235).

10. The island photovoltaic power generation system according to claim 9, characterized in that: The water spray mechanism (31) comprises: a water spray plate (311) and a water sprayer (312); the water spray plate (311) is arranged at the top end of the bottom frame (221); and a plurality of water spray ports are provided at intervals on the water spray plate (311); The water delivery mechanism (32) comprises a water delivery hose (321) and a pressurized water pump (322). One end of the water delivery hose (321) is connected to the water spray plate (311), and the other end is connected to the pressurized water pump (322).

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