Photovoltaic hydrogen production coupled low-carbon gas turbine power generation system

Abstract

The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic hydrogen production coupled low-carbon gas turbine power generation system. The system comprises a photovoltaic array used for converting solar energy into electric energy; and an electrolytic hydrogen production unit. According to the device, a model prediction control algorithm is adopted by the system coordination controller, the distribution proportion of photovoltaic electric energy can be dynamically optimized on the basis of whole system operation data collected in real time and ultra-short-term prediction of photovoltaic output, efficient operation of the electrolytic hydrogen production unit under a stable working condition is guaranteed, loss of equipment caused by power fluctuation is reduced, and the service life of the electrolytic hydrogen production unit is prolonged. The pressure of the hydrogen buffer tank is kept stable, and the gas turbine power generation unit can respond to the load requirement in time; meanwhile, the photovoltaic array can flexibly adjust the position, the height and the cleaning part of the cleaning mechanism through the cooperation of screw transmission, electric control telescoping and an electric control rotating shaft, and the cleaning requirements of different types of sundries can be met through the combined design of a cleaning scraper strip and wiping strips with different roughness.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic power generation technology, and more specifically, to a low-carbon gas turbine power generation system coupled with photovoltaic hydrogen production. Background Technology

[0002] With the global trend towards a low-carbon energy structure, the large-scale application of renewable energy has become a key path. Among these, solar energy, as a clean energy source with abundant reserves and wide distribution, has attracted significant attention for its development and utilization. Hydrogen energy, as a clean and efficient secondary energy carrier, can achieve long-term energy storage and cross-sectoral allocation. Photovoltaic hydrogen production technology converts solar energy into hydrogen for storage, effectively solving the problem of temporal and spatial mismatch in photovoltaic power output. Gas turbine power generation systems, with their advantages of fast start-up and good regulation performance, have become an important support for responding to grid load fluctuations. Combining photovoltaic hydrogen production with gas turbine power generation to construct a low-carbon gas turbine power generation system coupled with photovoltaic hydrogen production holds promise for achieving stable absorption and efficient utilization of renewable energy, representing an important direction for future energy system development.

[0003] However, such coupled systems contain multiple heterogeneous units, including photovoltaic power generation, electrolytic hydrogen production, hydrogen storage and supply, and gas turbine power generation. The dynamic characteristics of each unit differ significantly, posing a severe challenge to the stable and efficient operation of the system. The output of the photovoltaic array is affected by natural factors such as sunlight intensity, cloud movement, and temperature changes, exhibiting drastic and unpredictable fluctuations. The core equipment of the electrolytic hydrogen production unit, the electrolyzer, requires high stability in its operating conditions; frequent power fluctuations can lead to decreased electrolysis efficiency and increased electrode wear, severely impacting the equipment's lifespan and operational economy. The gas turbine power generation unit needs to respond quickly to changes in power demand from the grid or local load to ensure the reliability and stability of power supply. Currently, these units typically employ independent control strategies, lacking a system-level coordinated scheduling mechanism, resulting in a disconnect between the operating states of each unit. Fluctuations in photovoltaic output are directly transmitted to the electrolysis hydrogen production unit, causing drastic changes in the electrolyzer's operating conditions. This reduces hydrogen production efficiency and increases equipment wear and tear. Simultaneously, the hydrogen storage and supply units fail to effectively match the power generation load demand, resulting in either excess hydrogen waste or insufficient hydrogen supply that prevents the gas turbine from meeting load requirements. This lack of coordination not only causes significant energy loss but also leads to poor system stability and low overall efficiency, severely hindering the large-scale application of photovoltaic hydrogen production coupled with gas turbine power generation technology.

[0004] On the other hand, as the core component of a photovoltaic array, the surface cleanliness of the solar panel directly affects its light absorption efficiency, thus determining the power generation performance of the photovoltaic array. In actual operation, dust, sand, fallen leaves, bird droppings, and other debris easily adhere to the surface of the solar panel. These deposits block sunlight, reducing the effective light-receiving area of ​​the solar panel and increasing light reflection and scattering losses, leading to a significant decrease in power generation efficiency. Furthermore, most existing cleaning technologies require manual intervention to start, failing to achieve automated and intelligent cleaning and hindering their coordination with the overall operation of the photovoltaic power station, further limiting their application effectiveness. In summary, both existing photovoltaic hydrogen production coupled power generation systems and solar panel cleaning technologies have significant shortcomings. Summary of the Invention

[0005] To address the problems mentioned in the background art, this invention provides a low-carbon gas turbine power generation system coupled with photovoltaic hydrogen production, comprising: a photovoltaic array for converting solar energy into electrical energy; an electrolysis hydrogen production unit, the power input terminal of which is electrically connected to the power output terminal of the photovoltaic array; a hydrogen buffer tank, the inlet of which is connected to the hydrogen outlet of the electrolysis hydrogen production unit via a pipeline; a gas turbine power generation unit, the fuel inlet of which is connected to the outlet of the hydrogen buffer tank via a fuel supply pipeline; and a system coordination controller, which is communicatively connected to the photovoltaic array, the electrolysis hydrogen production unit, the hydrogen buffer tank, and the gas turbine power generation unit.

[0006] According to one embodiment of the present invention, the system coordination controller is used to receive power demand instructions from the power grid or local load, and determine the target power generation of the gas turbine power generation unit accordingly. It also acquires the hydrogen storage pressure value of the hydrogen buffer tank in real time, and uses the constraints of maintaining the hydrogen storage pressure within a preset pressure range and limiting the input power change rate of the electrolysis hydrogen production unit within a preset threshold to calculate the optimal allocation ratio of the hydrogen production power output from the photovoltaic array to the electrolysis hydrogen production unit and the power fed directly to the power grid.

[0007] According to one embodiment of the present invention, the system coordination controller uses a model predictive control algorithm to perform power allocation optimization calculations. Its optimization time domain covers the ultra-short-term prediction period of photovoltaic power output. The objective function of the optimization calculation simultaneously includes minimizing the power fluctuation of the electrolytic hydrogen production unit and minimizing the pressure deviation of the hydrogen buffer tank.

[0008] According to one embodiment of the present invention, the system coordination controller collects system operation data in real time, including at least the real-time output of the photovoltaic array, the real-time pressure of the hydrogen buffer tank, and the power demand of the gas turbine power generation unit.

[0009] According to one embodiment of the present invention, the photovoltaic array includes a base, a bracket is fixedly connected to the base, a mounting frame is rotatably connected to the bracket, a solar panel is fixedly connected inside the mounting frame, and an outer expansion plate is symmetrically fixedly connected to the mounting frame.

[0010] According to one embodiment of the present invention, a screw is rotatably connected to the outer expansion plate, a transmission column is drivenly connected to the screw, an electrically controlled telescopic rod is fixedly connected to the outer ring surface of the transmission column, and an electrically controlled shaft is fixedly connected to the output shaft end of the electrically controlled telescopic rod.

[0011] According to one embodiment of the present invention, the inner surfaces of the two electrically controlled shafts are fixedly connected to a long condition, the long condition being composed of four long strip surfaces and two lateral surfaces; a cleaning scraper is fixedly connected to one of the long strip surfaces of the long condition, the cleaning scraper having through openings at equal intervals, and the cleaning scraper having a hollow structure.

[0012] According to one embodiment of the present invention, wiping strip A, wiping strip B, and wiping strip C are respectively fixedly connected to the other three elongated surfaces of the long condition.

[0013] According to one embodiment of the present invention, both ends of the cleaning scraper strip, wiping strip A, wiping strip B, and wiping strip C are beveled.

[0014] According to one embodiment of the present invention, the wiping strips A, B, and C have different roughnesses.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This photovoltaic-hydrogen production coupled low-carbon gas turbine power generation system achieves deep collaborative operation of its various heterogeneous units through a system coordination controller, overcoming the drawbacks of traditional independent control modes. The system coordination controller employs a model predictive control algorithm, dynamically optimizing the distribution ratio of photovoltaic power based on real-time collected system operating data and ultra-short-term forecasts of photovoltaic output. This ensures efficient operation of the electrolysis hydrogen production unit under stable conditions, reducing equipment losses due to power fluctuations, while maintaining stable pressure in the hydrogen buffer tank, ensuring timely response of the gas turbine power generation unit to load demands. This collaborative control mechanism effectively resolves the contradictions between photovoltaic output volatility, electrolyzer operational stability, and gas turbine response speed, significantly improving the overall system's operational stability and energy utilization efficiency, and reducing energy losses and equipment maintenance costs.

[0016] 2. The photovoltaic array of this photovoltaic-hydrogen-coupled low-carbon gas turbine power generation system utilizes a coordinated mechanism of screw drive, electrically controlled telescopic extension, and electrically controlled rotating shaft. The cleaning mechanism allows for flexible adjustment of position, height, and cleaning components. The combination of scraper blades and wiping strips of varying roughness adapts to different types of debris, ensuring thorough cleaning without any blind spots. This cleaning mechanism requires no manual intervention and automatically initiates the cleaning program based on preset cycles or power generation efficiency feedback. This reduces labor intensity while promptly removing deposits from the solar panel surface, ensuring the solar panels maintain excellent light absorption performance, significantly improving the power generation efficiency of the photovoltaic array. Simultaneously, it prevents damage to the solar panels from corrosive debris, extending the equipment's lifespan and further enhancing the operational safety and economy of the photovoltaic power station. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the photovoltaic array in this invention. Figure 3 This is a side view of the main structure of the present invention; Figure 4 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 5 This is a maintenance status diagram of the solar panel in this invention; Figure 6 The diagram shows the relevant structures of the solar panel, scraper blade, and cleaning nozzle in this invention. Figure 7 This is a schematic diagram of the overall process of the power generation system in this invention; Figure 8 This is a diagram illustrating the power generation steps of the power generation system in this invention.

[0018] The meanings of the labels in the diagram are as follows: 1. Photovoltaic array; 101. Base; 102. Bracket; 103. Mounting frame; 104. Solar panel; 105. Outer expansion plate; 106. Screw; 107. Drive column; 108. Electrically controlled telescopic rod; 109. Electrically controlled shaft; 110. Long section; 111. Scraper strip; 112. Through-hole; 113. Wiping strip A; 114. Wiping strip B; 115. Wiping strip C 2. Electrolysis hydrogen production unit; 3. Hydrogen buffer tank; 4. Gas turbine power generation unit; 5. System coordination controller. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a low-carbon gas turbine power generation system coupled with photovoltaic hydrogen production, see [link to relevant documentation]. Figure 1 and Figure 7 As shown, it includes: a photovoltaic array 1 for converting solar energy into electrical energy; an electrolysis hydrogen production unit 2, whose power input terminal is electrically connected to the power output terminal of the photovoltaic array 1; a hydrogen buffer tank 3, whose inlet is connected to the hydrogen outlet of the electrolysis hydrogen production unit 2 via a pipeline; a gas turbine power generation unit 4, whose fuel inlet is connected to the outlet of the hydrogen buffer tank 3 via a fuel supply pipeline; and a system coordination controller 5, which is communicatively connected to the photovoltaic array 1, the electrolysis hydrogen production unit 2, the hydrogen buffer tank 3, and the gas turbine power generation unit 4.

[0021] The core function of the electrolysis hydrogen production unit 2 is to use the electrical energy generated by the photovoltaic array 1 to decompose water and produce hydrogen and oxygen. The hydrogen buffer tank 3 is made of high-strength carbon steel with internal anti-corrosion and anti-seepage treatment, and has good sealing and pressure resistance. Its inlet is connected to the hydrogen outlet of the electrolysis hydrogen production unit 2 through a corrosion-resistant pipe. Its main function is to store the hydrogen produced by the electrolysis hydrogen production unit 2, balance the production and consumption of hydrogen, and ensure a stable supply of hydrogen to the gas turbine power generation unit 4. The core function of the gas turbine power generation unit 4 is to use hydrogen as a clean fuel to generate electricity, converting hydrogen energy into electrical energy to respond to the power demand of the grid or local load.

[0022] According to one embodiment of the present invention, the system coordination controller 5 is used to receive power demand instructions from the power grid or local load, and determine the target power generation of the gas turbine power generation unit 4 accordingly. It also acquires the hydrogen storage pressure value of the hydrogen buffer tank 3 in real time, and calculates the optimal allocation ratio of the hydrogen production power output from the photovoltaic array 1 to the electrolytic hydrogen production unit 2 and the power fed directly to the power grid, with the constraints of maintaining the hydrogen storage pressure within a preset pressure range and limiting the input power change rate of the electrolytic hydrogen production unit 2 within a preset threshold.

[0023] According to one embodiment of the present invention, the system coordination controller 5 uses a model predictive control algorithm to perform power allocation optimization calculations. Its optimization time domain covers the ultra-short-term prediction period of photovoltaic power output. The objective function of the optimization calculation includes minimizing the power fluctuation of the electrolytic hydrogen production unit 2 and minimizing the pressure deviation of the hydrogen buffer tank 3.

[0024] According to one embodiment of the present invention, the system coordination controller 5 collects system operation data in real time, including at least the real-time output of the photovoltaic array 1, the real-time pressure of the hydrogen buffer tank 3, and the power demand of the gas turbine power generation unit 4.

[0025] Referring to the figure, the coordination method of the system coordination controller 5 is as follows: The system coordination controller 5 collects system operation data in real time, including the actual output of photovoltaic power, grid dispatch instructions or local load demand, pressure of hydrogen buffer tank 3, operating temperature and current density of electrolyzer; based on the grid dispatch instructions or local load demand, combined with the pressure status of hydrogen buffer tank 3, the target output of gas turbine power generation unit 4 is determined; based on the photovoltaic predicted output data and the current actual output, with the hydrogen buffer tank 3 pressure stabilizing within a preset range and the power change rate of electrolysis hydrogen production unit 2 not exceeding the limit, a model predictive control algorithm is used to continuously optimize the allocation scheme of the direct grid-connected power of photovoltaic power generation unit and the power consumed by electrolysis hydrogen production unit 2 in the future period; the system coordination controller 5 sends the power allocation instructions obtained by S to each unit for execution; the system status is fed back in real time and returned to S, realizing closed-loop control.

[0026] See Figure 2 - Figure 6 As shown, according to one embodiment of the present invention, the photovoltaic array 1 includes a base 101, a bracket 102 fixedly connected to the base 101, a mounting frame 103 rotatably connected to the bracket 102, a solar panel 104 fixedly connected inside the mounting frame 103, and an outer expansion plate 105 symmetrically fixedly connected to the mounting frame 103. The photovoltaic array 1 serves as the energy input terminal of the system, used to convert solar energy into electrical energy. The outer expansion plates 105 symmetrically fixedly connected to the mounting frame 103 are made of the same stainless steel as the mounting frame 103, and mainly serve to install and support the cleaning mechanism, providing a stable mounting foundation for the subsequent operation of the cleaning components.

[0027] According to one embodiment of the present invention, a screw 106 is rotatably connected to the outer expansion plate 105, a transmission column 107 is driveably connected to the screw 106, an electrically controlled telescopic rod 108 is fixedly connected to the outer ring surface of the transmission column 107, and an electrically controlled shaft 109 is fixedly connected to the output shaft end of the electrically controlled telescopic rod 108. The function of the electrically controlled telescopic rod 108 is to adjust the distance between the long conditioner 110 and the surface of the solar panel 104 through telescopic movement, ensuring that the cleaning component forms a suitable contact pressure with the surface of the solar panel 104, thus ensuring the cleaning effect while avoiding damage to the solar panel 104.

[0028] According to one embodiment of the present invention, a long condition 110 is fixedly connected to the inner surfaces of two electrically controlled shafts 109. The long condition 110 is composed of four elongated surfaces and two lateral surfaces. A cleaning blade 111 is fixedly connected to one of the elongated surfaces of the long condition 110. The cleaning blade 111 has equidistant through-holes 112 and has a hollow structure. The hollow structure of the cleaning blade 111 reduces its own weight and can buffer the impact force during cleaning to a certain extent, avoiding damage to the surface of the solar panel 104.

[0029] According to one embodiment of the present invention, wiping strips A113, B114, and C115 are fixedly connected to the other three elongated surfaces of the long condition 110, respectively. Both ends of the cleaning scraper strip 111, wiping strip A113, B114, and C115 are beveled. Wiping strips A113, B114, and C115 have different roughnesses.

[0030] Wiping strips A113, B114, and C115 are made of nylon, microfiber, and high-elasticity sponge, respectively, with varying degrees of roughness. Wiping strip A113 has the highest roughness and is suitable for initial wiping of larger particles; wiping strip B114 has moderate roughness and is used for medium-level cleaning to remove residual fine dust; wiping strip C115 has the lowest roughness and is soft, used for final fine wiping to ensure the surface of solar panel 104 is clean and residue-free. Both ends of cleaning scraper strips 111, A113, B114, and C115 are designed with bevels. This structure reduces collisions and friction between the cleaning components and the edges of the solar panel 104 during movement, while also facilitating smooth entry of the cleaning components into the cleaning area and avoiding cleaning dead zones. The working principle of this device is as follows: During the power generation and coordinated operation, the photovoltaic array 1 first converts the captured solar energy into electrical energy. This electrical energy is then converted into a form of electricity that meets the system requirements by a converter and transmitted in two paths: one path is directly fed to the power grid, and the other path is used to supply hydrogen production power to the electrolysis hydrogen production unit 2. After receiving the power supply, the electrolysis hydrogen production unit 2 starts the electrolysis reaction, decomposing the input water into hydrogen and oxygen. The generated hydrogen is transported to the hydrogen buffer tank 3 through a dedicated pipeline, where it is stored and pressure-stabilized to ensure that the hydrogen pressure inside the tank is maintained within a preset safe range. The oxygen is discharged or recycled according to actual needs. The gas turbine power generation unit 4 is always in standby or operating state, ready to generate electricity according to the power demand of the power grid or local load. Its fuel supply depends entirely on the hydrogen supplied by the hydrogen buffer tank 3. The hydrogen is sent into the combustion chamber of the gas turbine through the fuel supply pipeline. The combustion of hydrogen produces high-temperature and high-pressure gas, which drives the gas turbine rotor to rotate, thereby driving the generator to generate electricity. The generated electricity is directly connected to the power grid or supplied to local loads, realizing the conversion of hydrogen energy into electrical energy.

[0031] The core control of the entire power generation process is led by the system coordination controller 5, whose specific working logic is as follows: The system coordination controller 5 collects real-time operating data of the entire system through the data acquisition module. This data includes at least the real-time output of the photovoltaic array 1, the real-time pressure of the hydrogen buffer tank 3, the power demand of the gas turbine power generation unit 4, and the operating status parameters of the electrolysis hydrogen production unit 2. The system coordination controller 5 first receives the power demand command from the grid or local load. Based on this command and parameters such as the rated power and operating efficiency of the gas turbine power generation unit 4, it determines the target power generation of the gas turbine power generation unit 4. Subsequently, the system coordination controller 5 uses the constraints of maintaining the hydrogen storage pressure of the hydrogen buffer tank 3 within a preset pressure range and limiting the rate of change of the input power of the electrolysis hydrogen production unit 2 within a preset threshold to start the built-in model predictive control algorithm to perform power allocation optimization calculations. The optimization algorithm covers the ultra-short-term prediction period of photovoltaic power output, enabling it to predict the trend of photovoltaic power output changes in advance. The objective function of the optimization calculation includes minimizing the power fluctuation of the electrolysis hydrogen production unit 2 and minimizing the pressure deviation of the hydrogen buffer tank 3. The optimal allocation ratio of the hydrogen production power output from the photovoltaic array 1 to the electrolysis hydrogen production unit 2 and the power fed directly to the grid is calculated through rolling optimization.

[0032] After the optimization calculation is completed, the system coordination controller 5 sends control commands to the converter of the photovoltaic array 1 and the power regulation module of the electrolysis hydrogen production unit 2 through the communication module. This executes the optimal power allocation scheme, ensuring that the electrolysis hydrogen production unit 2 operates efficiently under stable conditions, while simultaneously maintaining the pressure stability of the hydrogen buffer tank 3 to provide a continuous and stable fuel supply to the gas turbine power generation unit 4. After completing one control cycle, the system coordination controller 5 continues to collect system operation data for the next round, repeating the above optimization calculation and command issuance process to achieve dynamic coordinated control of the entire system.

[0033] During the cleaning process of photovoltaic array 1, the system coordination controller 5 determines whether the surface of solar panel 104 needs cleaning based on a preset cleaning cycle or by monitoring the power generation efficiency of photovoltaic array 1. When the cleaning conditions are met, the cleaning program is initiated. First, the system coordination controller 5 sends a control signal to the drive motor of screw 106. The drive motor drives screw 106 to rotate. The threaded transmission structure between screw 106 and transmission column 107 converts the rotational motion into linear motion, causing transmission column 107 to move along the length direction of expansion plate 105, thereby adjusting the lateral position of the cleaning mechanism. At the same time, the system coordination controller 5 sends extension and retraction commands to the electrically controlled telescopic rod 108. The electrically controlled telescopic rod 108 extends or retracts according to the commands, adjusting the distance between the long condition 110 and the surface of solar panel 104, so that the designated cleaning components (scraper strip 111 or wiping strips A113, B, C) form a suitable contact pressure with the surface of solar panel 104.

[0034] If stubborn debris needs to be removed, the system coordinating controller 5 controls the rotation of the electric control shaft 109, switching the cleaning blade 111 to the working position. Driven by the transmission column 107, the cleaning blade 111 moves along the surface of the solar panel 104, scraping away stubborn debris through close contact between its elastic material and the surface. The debris falls through the cleaning nozzle 112, preventing accumulation in the cleaning area. After the stubborn debris is removed, the system coordinating controller 5 controls the electric control shaft 109 to rotate sequentially, switching the wiping strips A113, B, and C to the working position respectively. Wiping strips of different roughness are used for progressively fine wiping, ensuring the surface of the solar panel 104 is clean and residue-free. During the cleaning process, the beveled ends of the cleaning blade 111 and each wiping strip prevent collision with the edge of the solar panel 104, ensuring a smooth and stable cleaning process. After cleaning is completed, the system coordinator controller 5 controls the electric telescopic rod 108 to retract, driving the long conditioner 110 away from the surface of the solar panel 104. At the same time, it controls the screw 106 to reverse, driving the transmission column 107 back to the initial position, waiting for the next cleaning instruction.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-carbon combustion engine power generation system coupled with photovoltaic hydrogen generation, characterized in that: It includes: Photovoltaic array (1) for converting solar energy into electric energy; Electrolytic hydrogen production unit (2) whose power input end is electrically connected with the electric energy output end of the photovoltaic array (1); Hydrogen buffer tank (3) whose gas inlet is connected with the hydrogen outlet of the electrolytic hydrogen production unit (2) through a pipeline; Gas turbine power generation unit (4) whose fuel inlet is connected with the gas outlet of the hydrogen buffer tank (3) through a fuel supply pipeline; System coordination controller (5) which is communicatively connected with the photovoltaic array (1), electrolytic hydrogen production unit (2), hydrogen buffer tank (3) and gas turbine power generation unit (4) respectively.

2. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 1, wherein: The system coordination controller (5) is used for receiving power demand instructions from a power grid or a local load, determining a target power generation power of the gas turbine power generation unit (4) according to the power demand instructions, acquiring a hydrogen storage pressure value of the hydrogen buffer tank (3) in real time, maintaining the hydrogen storage pressure within a preset pressure interval and limiting a change rate of input power of the electrolytic hydrogen production unit (2) within a preset threshold as constraint conditions, and calculating an optimal distribution ratio of hydrogen production power of the photovoltaic array (1) output to the electrolytic hydrogen production unit (2) and feed-in power directly delivered to the power grid.

3. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 2, wherein: The system coordination controller (5) adopts a model predictive control algorithm to perform power distribution optimization calculation, an optimization time domain of the system coordination controller (5) covers a super short-term prediction period of photovoltaic output, and an objective function of the optimization calculation simultaneously contains minimizing power fluctuation of the electrolytic hydrogen production unit (2) and minimizing pressure deviation of the hydrogen buffer tank (3).

4. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 3, wherein: The system coordination controller (5) acquires system operation data in real time, and the data at least includes real-time output of the photovoltaic array (1), real-time pressure of the hydrogen buffer tank (3) and power demand of the gas turbine power generation unit (4).

5. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 1, wherein: The photovoltaic array (1) comprises a base (101), a support (102) fixedly connected to the base (101), a mounting frame body (103) rotatably connected to the support (102), a solar panel (104) fixedly connected in the mounting frame body (103), and outer expansion plates (105) fixedly connected to the mounting frame body (103) in a symmetrical manner.

6. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 5, wherein: A screw rod (106) is rotatably connected to the outer expansion plate (105), a transmission column (107) is drivingly connected to the screw rod (106), an electric control telescopic rod (108) is fixedly connected to the outer ring surface of the transmission column (107), and an electric control shaft (109) is fixedly connected to the output shaft end of the electric control telescopic rod (108).

7. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 6, wherein: Two electric control shafts (109) are fixedly connected to the inner surface of the long condition (110) in a common manner, the long condition (110) is composed of four long strip surfaces and two lateral side surfaces, a cleaning scraper strip (111) is fixedly connected to one of the long strip surfaces of the long condition (110), through strip openings (112) are equidistantly and penetratingly formed in the cleaning scraper strip (111), and the cleaning scraper strip (111) is a hollow structure.

8. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 7, wherein: A wiping strip A (113), a wiping strip B (114) and a wiping strip C (115) are fixedly connected to the other three long strip surfaces of the long condition (110) respectively.

9. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 8, wherein: The clear doctor blade (111), the wiping strip A (113), the wiping strip B (114) and the wiping strip C (115) are both in the form of bevels at both ends.

10. The low carbon combustion engine power generation system coupled with photovoltaic hydrogen generation of claim 8, wherein: The wiping strip A (113), the wiping strip B (114) and the wiping strip C (115) have different roughnesses.

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