Self-adaptive adjustment photovoltaic solar power generation device

Abstract

The invention relates to the technical field of photovoltaic power generation, and discloses a self-adaptive adjustment photovoltaic solar power generation device which comprises a base, two symmetrically arranged supports are slidably connected to the upper portion in the base, the top ends of the two supports are rotatably connected to the two sides of the bottom of a photovoltaic panel respectively, and a cooling circulation pipe is further embedded and fixed to the bottom of the photovoltaic panel. A hydraulic adjusting mechanism is arranged in the base, one support is driven to ascend and descend through the hydraulic adjusting mechanism, and meanwhile cooling liquid is driven to flow in the cooling circulating pipe. And the adaptive adjustment module integrates an illumination intensity sensor, a temperature sensor, a controller and a DC-DC conversion circuit. Through cooperation of the self-adaptive adjustment module, power generation parameters are adjusted in real time according to changes of environmental factors, so that the photovoltaic panel is in a maximum power output state, the stability of the power generation device under different environmental conditions is effectively improved, and power generation fluctuation caused by environmental changes is remarkably reduced.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic power generation, and in particular to a self-adaptive photovoltaic solar power generation device. Background Art

[0002] As global energy demand continues to grow and the demand for clean energy becomes more urgent, solar energy, as an inexhaustible renewable energy, is receiving extensive attention and in-depth research on its utilization technology. Solar power generation, with its many advantages such as green, environmentally friendly and sustainable, has become one of the important solutions to energy crises and environmental problems.

[0003] However, existing photovoltaic solar power generation devices face many severe challenges in practical applications. On the one hand, the light receiving angle of traditional fixed photovoltaic panels is fixed after installation and cannot be dynamically adjusted as the position of the sun changes during the day. As a result, solar energy cannot be fully absorbed and converted, greatly limiting the utilization rate of solar energy. On the other hand, the complexity and variability of environmental factors have a significant impact on the power generation efficiency of photovoltaic panels. Temperature fluctuations will cause changes in the internal electrical properties of photovoltaic panels. For example, when the temperature rises, the open circuit voltage of the photovoltaic panel will decrease, and the short-circuit current will increase to a certain extent, but the overall power will decrease; in a low temperature environment, the internal resistance of the photovoltaic panel will increase, which will also affect the power generation efficiency. The change in light intensity is also very frequent, from strong light on a sunny day to weak light on a cloudy day, and momentary cloud cover, etc., will cause a sharp change in light intensity. If the power generation device cannot respond to these environmental changes in a timely and accurate manner and adjust the power generation parameters, the output power of the photovoltaic panel will fluctuate greatly. This fluctuation not only reduces the stability of power supply and increases the difficulty of power regulation, but may also cause damage to electrical equipment and shorten the service life of the equipment. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides an adaptively adjustable photovoltaic solar power generation device, which solves the problems that the existing photovoltaic solar power generation devices have a fixed light receiving angle and cannot be adaptively adjusted according to environmental changes.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adaptively regulated photovoltaic solar power generation device, comprising:

[0006] A base, wherein two symmetrically arranged brackets are slidably connected to the upper part of the base, and the tops of the two brackets are rotatably connected to the two sides of the bottom of the photovoltaic panel respectively. A cooling circulation pipe is also embedded and fixed at the bottom of the photovoltaic panel. A hydraulic adjustment mechanism is arranged in the base, and one of the brackets is driven to rise and fall through the hydraulic adjustment mechanism, and the coolant is driven to flow in the cooling circulation pipe at the same time;

[0007] The adaptive adjustment module integrates a light intensity sensor, a temperature sensor, a controller, and a DC-DC conversion circuit. The light intensity sensor is used to monitor the light intensity in real time. The controller controls the DC-DC conversion circuit to dynamically adjust the working voltage and current of the photovoltaic panel according to the light intensity data, so that the photovoltaic panel is in a maximum power output state. The temperature sensor is used to monitor the temperature of the photovoltaic panel in real time. When the temperature is too high, the controller controls the hydraulic adjustment mechanism to increase the flow rate of the coolant in the cooling circulation pipe.

[0008] The solar tracking system monitors the sun's position in real time through a solar tracker and transmits the monitoring signal to the controller. The controller calculates the angle that the photovoltaic panel needs to be adjusted and then controls the hydraulic adjustment mechanism to drive the photovoltaic panel to rotate.

[0009] Preferably, a horizontally placed partition 1 is fixedly connected to the lower portion of the base, the partition 1 divides the inner cavity of the base into an upper chamber and a lower chamber, the lower chamber stores coolant, a vertically placed partition 2 is arranged in the middle of the upper chamber, the partition 2 divides the upper chamber into a left chamber and a right chamber isolated from each other, pistons are arranged in the left chamber and the right chamber, and retaining rings are arranged at the bottom of the left chamber and the right chamber, the top wall of the piston is fixedly connected to the bottom end of the bracket, the outer side wall of the bracket passes through and is slidably connected to the upper wall of the base, two through pipes are symmetrically passed through and fixedly connected on the plate body of the partition 1, and valves are arranged on the tube bodies of the through pipes, the two through pipes connect the left chamber and the right chamber with the lower chamber respectively, a through hole is opened on the plug body of the piston, the two through holes are connected with the two openings of the cooling circulation pipe through the infusion pipe respectively, and a flow control valve is arranged at one of the connections.

[0010] Preferably, the bottom wall of the base adopts a concave surface structure, and the surface height of the concave surface structure decreases linearly from the periphery to the center.

[0011] Preferably, the hydraulic regulating mechanism includes a submersible pump, the bottom wall of the submersible pump is fixedly connected to the lowest point of the bottom wall of the base, the output end of the submersible pump is fixedly connected to a shunt pipe, one shunt end of the shunt pipe passes through partition one and is connected to the left chamber, the other shunt end passes through partition one and is connected to the right chamber, and both shunt ends are provided with solenoid valves.

[0012] Preferably, the controller has a built-in maximum power point tracking algorithm, and the maximum power point tracking algorithm calculates the optimal operating voltage and current values ​​of the photovoltaic panel under current lighting conditions based on the conductance increment method.

[0013] Preferably, the controller adjusts the optimal operating voltage and current values ​​in the following steps: when the light intensity is weak, the DC-DC conversion circuit is controlled to increase the operating voltage of the photovoltaic panel to maintain the output power; when the light intensity is strong, the DC-DC conversion circuit is controlled to reduce the voltage and increase the current output.

[0014] Preferably, a self-cleaning component is provided on the upper surface of the photovoltaic panel, which regularly removes dust on the surface of the photovoltaic panel by electrostatic adsorption.

[0015] The present invention provides a self-adaptive photovoltaic solar power generation device, which has the following beneficial effects:

[0016] The present invention adopts the setting of hydraulic adjustment mechanism, so that it can adjust the angle of photovoltaic panel and also play the role of liquid cooling and heat dissipation of photovoltaic panel. In conjunction with the solar tracking system, the device can adjust the corresponding angle of photovoltaic panel in real time according to the position of the sun, so that the photovoltaic panel can always maintain the best light receiving angle, thereby significantly improving the utilization rate of solar energy. At the same time, through the cooperation of adaptive adjustment module, the power generation parameters are adjusted in real time according to the changes of environmental factors, so that the photovoltaic panel is in the maximum power output state, which effectively improves the stability of the power generation device under different environmental conditions and significantly reduces the power generation fluctuation caused by environmental changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A system principle diagram of a self-adaptive photovoltaic solar power generation device according to the present invention;

[0018] Figure 2 A top-down perspective schematic diagram of a self-adaptive photovoltaic solar power generation device according to the present invention;

[0019] Figure 3 It is a bottom-up stereoscopic schematic diagram of a self-adaptive photovoltaic solar power generation device of the present invention;

[0020] Figure 4 It is a schematic diagram of the internal structure of the base in the present invention;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0022] Among them, 1. base; 2. bracket; 3. photovoltaic panel; 4. cooling circulation pipe; 5. partition one; 6. left chamber; 601. right chamber; 7. lower chamber; 8. partition two; 9. piston; 10. retaining ring; 11. through pipe; 12. valve; 13. through hole; 14. infusion tube; 15. flow control valve; 16. submersible pump; 17. shunt pipe; 18. solenoid valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Please see attached Figure 1 -Attached Figure 5 The embodiment of the present invention provides a self-adaptive photovoltaic solar power generation device, comprising:

[0025] A base 1, wherein two symmetrically arranged brackets 2 are slidably connected to the upper part of the base 1, and the tops of the two brackets 2 are respectively rotatably connected to the two sides of the bottom of the photovoltaic panel 3, and a cooling circulation pipe 4 is also embedded and fixed at the bottom of the photovoltaic panel 3. A hydraulic adjustment mechanism is arranged in the base 1, and one of the brackets 2 is driven to rise and fall through the hydraulic adjustment mechanism, and the coolant is driven to flow in the cooling circulation pipe 4 at the same time;

[0026] The adaptive adjustment module integrates a light intensity sensor, a temperature sensor, a controller, and a DC-DC conversion circuit. The light intensity sensor is used to monitor the light intensity in real time. The controller controls the DC-DC conversion circuit to dynamically adjust the working voltage and current of the photovoltaic panel 3 according to the light intensity data, so that the photovoltaic panel 3 is in a maximum power output state. The temperature sensor is used to monitor the temperature of the photovoltaic panel 3 in real time. When the temperature is too high, the controller controls the hydraulic adjustment mechanism to increase the flow rate of the coolant in the cooling circulation pipe 4.

[0027] The solar tracking system monitors the sun's position in real time through a solar tracker and transmits the monitoring signal to the controller. After the controller calculates the angle that the photovoltaic panel 3 needs to be adjusted, it controls the hydraulic adjustment mechanism to drive the photovoltaic panel 3 to rotate.

[0028] Through the setting of the hydraulic adjustment mechanism, the device can not only adjust the angle of the photovoltaic panel 3, but also play a role in liquid cooling the photovoltaic panel 3. In conjunction with the solar tracking system, the device can adjust the corresponding angle of the photovoltaic panel 3 in real time according to the position of the sun, so that the photovoltaic panel 3 can always maintain the best light receiving angle, thereby significantly improving the utilization rate of solar energy. At the same time, through the cooperation of the adaptive adjustment module, the power generation parameters are adjusted in real time according to the changes in environmental factors, so that the photovoltaic panel 3 is in the maximum power output state, which effectively improves the stability of the power generation device under different environmental conditions and significantly reduces the power generation fluctuations caused by environmental changes.

[0029] A horizontally placed partition 5 is fixedly connected to the lower part of the base 1, and the partition 5 divides the inner cavity of the base 1 into an upper chamber and a lower chamber 7. The lower chamber 7 stores coolant. A vertically placed partition 8 is arranged in the middle of the upper chamber. The partition 8 divides the upper chamber into a left chamber 6 and a right chamber 601 which are isolated from each other. A piston 9 is arranged in each of the left chamber 6 and the right chamber 601, and a retaining ring 10 is arranged at the bottom of each of the left chamber 6 and the right chamber 601. The top wall of the piston 9 is fixedly connected to the bracket. 2 bottom, the outer wall of the bracket 2 penetrates and is slidably connected to the upper wall of the base 1, and two through pipes 11 are symmetrically penetrated and fixedly connected on the body of the partition 5, and a valve 12 is provided on the tube body of the through pipe 11. The two through pipes 11 connect the left chamber 6 and the right chamber 601 with the lower chamber 7 respectively. A through hole 13 is provided on the plug body of the piston 9. The two through holes 13 are connected to the two openings of the cooling circulation pipe 4 through the infusion pipe 14 respectively, and a flow control valve 15 is provided at one of the connections. The infusion pipe 14 is made of flexible material to be suitable for deformation with the inclination of the photovoltaic panel 3. At the same time, the infusion pipe 14 has an anti-bending function to avoid the problem of blockage caused by excessive bending. The bottom wall of the base 1 adopts a concave structure, and the concave structure is a surface height that decreases linearly from the surroundings to the center. The hydraulic adjustment mechanism includes a submersible pump 16, the bottom wall of the submersible pump 16 is fixedly connected to the lowest point of the bottom wall of the base 1, and the output end of the submersible pump 16 is fixedly connected to a shunt pipe 17. One shunt end of the shunt pipe 17 passes through the partition 5 and is connected to the left chamber 6, and the other shunt end passes through the partition 5 and is connected to the right chamber 601, and both shunt ends are provided with solenoid valves 18.

[0030] When the photovoltaic panel 3 needs to tilt to the left, the valve 12 at the right chamber 601 is closed, and the solenoid valve 18 of the shunt pipe 17 at the left chamber 6 is closed, then the submersible pump 16 is started, and the coolant in the lower chamber 7 is injected into the right chamber 601 through the shunt pipe 17, pushing the piston 9 in the right chamber 601 to rise. At the same time, the coolant passes through the through hole 13 and enters the cooling circulation pipe 4 through the infusion pipe 14 to cool the photovoltaic panel 3. Then the coolant flows into the left chamber 6 and flows back into the lower chamber 7 through the through pipe 11. By adjusting the output power of the submersible pump 16 and regulating the flow control valve 15, the upward push pressure on the piston 9 in the left chamber 6 is in dynamic balance, thereby realizing the adjustment of the tilt angle of the photovoltaic panel 3 and cooling the photovoltaic panel 3 at the same time.

[0031] The controller has a built-in maximum power point tracking algorithm, which calculates the optimal operating voltage and current value of the photovoltaic panel 3 under the current lighting conditions based on the conductance increment method. The controller adjusts the optimal operating voltage and current value in the following steps: when the light intensity is weak, the DC-DC conversion circuit is controlled to increase the operating voltage of the photovoltaic panel 3 to maintain the output power; when the light intensity is strong, the DC-DC conversion circuit is controlled to reduce the voltage and increase the current output.

[0032] The output characteristics of the photovoltaic panel 3 are nonlinear, and its maximum power point will change with changes in environmental factors such as light intensity and temperature. The core idea of ​​the conductance increment method is to judge the relative position relationship between the current working point and the maximum power point by comparing the ratio of the change in the output conductance of the photovoltaic panel 3 to the change in the voltage, thereby adjusting the working voltage and current of the photovoltaic panel 3 so that it always tends to the maximum power point. The specific steps of the maximum power point tracking algorithm are as follows:

[0033] S1, data collection, the light intensity sensor monitors the ambient light intensity in real time and transmits the light intensity data to the controller. At the same time, the controller collects the output voltage V and output current I of the photovoltaic panel 3 in real time.

[0034] S2. Calculate the conductivity and increment. First, calculate the output conductivity of the photovoltaic panel 3. Then the conductance increment ΔG and the voltage increment ΔV are calculated. These increments are calculated by collecting voltage and current data twice in a very short time interval. For example, if the voltage collected at the current moment is V n , the current is I n , the voltage collected at the last moment is V n-1 , the current is I n-1 , then ΔV=V n -V n-1 ,

[0035] S3, compare and judge, and compare the calculated ΔG with Make a comparison.

[0036] when When , it means that the current working point of the photovoltaic panel is at the maximum power point, and there is no need to adjust the working voltage and current;

[0037] when , it means that the current working point is on the left side of the maximum power point. At this time, the working voltage of the photovoltaic panel needs to be increased to approach the maximum power point.

[0038] when It means that the current working point is on the right side of the maximum power point. At this time, it is necessary to reduce the working voltage of the photovoltaic panel to approach the maximum power point.

[0039] S4, voltage adjustment: according to the above comparison and judgment results, the controller controls the DC-DC conversion circuit to adjust the working voltage of the photovoltaic panel.

[0040] When the light intensity is at different stages, the specific voltage adjustment method is as follows:

[0041] In the early morning weak light stage, when the light intensity is weak, if the current working point is found to be on the left side of the maximum power point after comparison, the controller controls the DC-DC conversion circuit to increase the working voltage of the photovoltaic panel 3 to maintain a certain output power. This is because the output current of the photovoltaic panel 3 is small under weak light conditions, and by appropriately increasing the voltage, light energy can be more effectively utilized to improve power generation efficiency.

[0042] At noon, when the light intensity reaches a relatively strong level, if the comparison shows that the current working point is to the right of the maximum power point, the controller controls the DC-DC conversion circuit to reduce the working voltage of the photovoltaic panel 3 and increase the current output. Because the output current of the photovoltaic panel 3 is relatively large under strong light, appropriately reducing the voltage can make the photovoltaic panel 3 work in a more efficient state, make full use of solar energy resources, and achieve maximum power output.

[0043] During the entire process of light intensity change, from weak light in the early morning to strong light at noon, and then to weakened light in the evening, the maximum power point tracking algorithm continues to run. The light intensity sensor continuously monitors the changes in light intensity in real time and transmits the data to the controller. The controller constantly repeats the above calculation steps based on the new light intensity data, combined with the real-time collected output voltage and current data of the photovoltaic panel 3, and adjusts the working voltage and current of the photovoltaic panel 3 in real time so that it is always in the maximum power output state. Even in the case of rapid changes in light intensity, due to the rapid response characteristics of the algorithm, a calculation and adjustment can be completed in a very short time, ensuring that the photovoltaic panel 3 can quickly adapt to changes in light and maximize the utilization efficiency of solar energy. Through this maximum power point tracking algorithm based on the conductance increment method, the photovoltaic solar power generation device can achieve efficient and stable power generation under different lighting conditions, giving full play to the advantages of adaptive regulation.

[0044] At the same time, under different temperature conditions, the output characteristics of the photovoltaic panel 3 will change significantly, and the maximum power point tracking algorithm based on the conductance increment method can effectively cope with these changes and ensure that the photovoltaic solar power generation device always operates efficiently.

[0045] When the ambient temperature rises, the open circuit voltage of the photovoltaic panel 3 will decrease, and the short circuit current will increase slightly, but the overall power will decrease. This is because high temperature will increase the carrier load inside the photovoltaic cell, reducing the conversion efficiency of the cell.

[0046] Under low temperature conditions, the open circuit voltage of the photovoltaic panel 3 will increase, and the short circuit current will remain basically unchanged. However, due to factors such as the increase in the internal resistance of the battery, the power output is not necessarily the higher the better, and there is also an optimal working point.

[0047] Therefore, in a high temperature environment, the controller will comprehensively consider the impact of temperature factors on the output characteristics of the photovoltaic panel 3 when using the conductance increment method for calculation. Since high temperature causes the open circuit voltage to decrease, after calculating the conductance increment ΔG and the voltage increment ΔV, the judgment conditions will be adjusted compared with the normal temperature condition. For example, when ΔG and When they are close to being equal, the controller will appropriately increase the amplitude of the voltage adjustment, taking into account the trend of power reduction under high temperature. Specifically, if it is determined that the current operating point is on the left side of the maximum power point and the operating voltage of the photovoltaic panel 3 needs to be increased to approach the maximum power point, the controller will instruct the DC-DC conversion circuit to increase the voltage increase on the basis of the original adjustment amount to compensate for the impact of high temperature on power. The algorithm continues to run throughout the high temperature period. As the temperature fluctuates and the light intensity changes, the controller continuously repeats the calculation steps of the conductivity increment method based on the new temperature and light intensity data, combined with the real-time collected output voltage and current data of the photovoltaic panel 3, to adjust the operating voltage and current of the photovoltaic panel 3 in real time to ensure that it is as close to the maximum power output state as possible even in a high temperature environment.

[0048] In a low temperature environment, due to factors such as the increase in the open circuit voltage of the photovoltaic panel 3 and the change in internal resistance, the judgment and adjustment strategy of the conductance increment method is also different. After calculating ΔG and ΔV, if it is judged that the current working point is on the right side of the maximum power point and it is necessary to reduce the working voltage of the photovoltaic panel 3 to approach the maximum power point, the controller will appropriately slow down the speed of voltage reduction according to the battery characteristics at low temperature. This is because the voltage change at low temperature is more sensitive to the power, and reducing the voltage too quickly may cause the working point to deviate further from the maximum power point. During the period of low temperature environment, with the change of light intensity and the possible fluctuation of temperature, the controller continues to use the conductance increment method, combined with real-time temperature, light intensity, voltage and current data, to dynamically adjust the working voltage and current of the photovoltaic panel 3 to adapt to the changes in the output characteristics of the photovoltaic panel 3 under low temperature conditions, and always keep working in a state close to the maximum power point. Through the flexible application of the maximum power point tracking algorithm based on the conductance increment method under different temperature conditions, the photovoltaic solar power generation device can effectively overcome the adverse effects of temperature on power generation efficiency and achieve efficient and stable solar power generation in various complex environments.

[0049] A self-cleaning component is provided on the upper surface of the photovoltaic panel 3 , which regularly removes dust on the surface of the photovoltaic panel 3 by electrostatic adsorption.

[0050] The self-cleaning component regularly removes dust on the surface of the photovoltaic panel 3 by electrostatic adsorption to prevent the dust from affecting the light transmittance.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive photovoltaic solar power generation device, characterized in that: include: A base (1), wherein two symmetrically arranged brackets (2) are slidably connected to the upper part of the base (1), the top ends of the two brackets (2) are rotatably connected to the two sides of the bottom of the photovoltaic panel (3), and a cooling circulation pipe (4) is also embedded and fixed in the bottom of the photovoltaic panel (3). A hydraulic adjustment mechanism is arranged in the base (1), and one of the brackets (2) is driven to rise and fall by the hydraulic adjustment mechanism, and coolant is driven to flow in the cooling circulation pipe (4) at the same time; An adaptive adjustment module is provided, wherein the adaptive adjustment module integrates a light intensity sensor, a temperature sensor, a controller, and a DC-DC conversion circuit, wherein the light intensity sensor is used to monitor the light intensity in real time, and the controller controls the DC-DC conversion circuit to dynamically adjust the working voltage and current of the photovoltaic panel (3) according to the light intensity data, so that the photovoltaic panel (3) is in a maximum power output state, and the temperature sensor is used to monitor the temperature of the photovoltaic panel (3) in real time. When the temperature is too high, the controller controls the hydraulic adjustment mechanism to increase the flow rate of the coolant in the cooling circulation pipe (4). The solar tracking system monitors the solar position in real time through a solar tracker and transmits the monitoring signal to a controller. After the controller calculates the angle that the photovoltaic panel (3) needs to be adjusted, it controls the hydraulic adjustment mechanism to drive the photovoltaic panel (3) to rotate.

2. The self-adaptive photovoltaic solar power generation device according to claim 1, characterized in that: A horizontally placed partition plate (5) is fixedly connected to the lower part of the base (1), and the partition plate (5) divides the inner cavity of the base (1) into an upper chamber and a lower chamber (7). The lower chamber (7) stores cooling liquid. A vertically placed partition plate (8) is arranged in the middle of the upper chamber. The partition plate (8) divides the upper chamber into a left chamber (6) and a right chamber (601) that are isolated from each other. A piston (9) is arranged in each of the left chamber (6) and the right chamber (601), and a retaining ring (10) is arranged at the bottom of each of the left chamber (6) and the right chamber (601). The top wall of the piston (9) is fixedly connected to At the bottom end of the bracket (2), the outer wall of the bracket (2) penetrates and is slidably connected to the upper wall of the base (1), two through pipes (11) are symmetrically penetrated and fixedly connected on the plate body of the partition plate (5), and a valve (12) is provided on the tube body of the through pipe (11), and the two through pipes (11) respectively connect the left chamber (6) and the right chamber (601) with the lower chamber (7), and a through hole (13) is opened on the plug body of the piston (9), and the two through holes (13) are respectively connected to the two openings of the cooling circulation pipe (4) through the infusion tube (14), and a flow control valve (15) is provided at one of the connection points.

3. The self-adaptive photovoltaic solar power generation device according to claim 2, characterized in that: The bottom wall of the base (1) adopts a concave surface structure, and the surface height of the concave surface structure decreases linearly from the periphery to the center.

4. The self-adaptive photovoltaic solar power generation device according to claim 3, characterized in that: The hydraulic adjustment mechanism comprises a submersible pump (16), the bottom wall of the submersible pump (16) is fixedly connected to the lowest point of the bottom wall of the base (1), the output end of the submersible pump (16) is fixedly connected to a shunt pipe (17), one shunt end of the shunt pipe (17) passes through the partition plate 1 (5) and is connected to the left chamber (6), and the other shunt end passes through the partition plate 1 (5) and is connected to the right chamber (601), and both shunt ends are provided with solenoid valves (18).

5. The self-adaptive photovoltaic solar power generation device according to claim 1, characterized in that: The controller has a built-in maximum power point tracking algorithm, which calculates the optimal operating voltage and current values ​​of the photovoltaic panel (3) under current lighting conditions based on the conductance increment method.

6. The self-adaptive photovoltaic solar power generation device according to claim 1, characterized in that: The controller adjusts the optimal operating voltage and current values ​​in the following steps: when the light intensity is weak, the DC-DC conversion circuit is controlled to increase the operating voltage of the photovoltaic panel (3) to maintain the output power; when the light intensity is strong, the DC-DC conversion circuit is controlled to reduce the voltage and increase the current output.

7. The self-adaptive photovoltaic solar power generation device according to claim 1, characterized in that: The upper surface of the photovoltaic panel (3) is provided with a self-cleaning component which regularly removes dust on the surface of the photovoltaic panel (3) by means of electrostatic adsorption.

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