An agricultural and photovoltaic complementary intelligent greenhouse system and its regulation method

Abstract

The present disclosure relates to the technical field of photovoltaic power generation, and provides an agricultural-light complementary intelligent greenhouse system and its control method, including a greenhouse main body, photovoltaic panels, and a photovoltaic panel rotation system. The photovoltaic panels are arranged on the greenhouse main body, and the photovoltaic panel rotation system controls the rotation of the photovoltaic panels to adjust the installation angle of the photovoltaic panels, so as to adjust the shielding area of the photovoltaic panels on the greenhouse main body; the occupied area of the photovoltaic panels on the ceiling of the greenhouse main body is determined according to the ratio of the maximum light intensity for photosynthesis of crops in the greenhouse to the maximum light intensity in the set area of the greenhouse. The present disclosure reasonably sets the area of the photovoltaic panels, and at the same time can realize the fine adjustment of the angles of the photovoltaic panels, meet the lighting requirements of the crops under the photovoltaic panels and outside the panels at the same time, and truly meet the requirements of agricultural-light complementarity.

Description

Technical Field

[0001] The present disclosure relates to the technical field related to photovoltaic power generation, and specifically, to an agricultural-light complementary intelligent greenhouse system and its control method. Background Art

[0002] The statements in this part merely provide background technical information related to the present disclosure and do not necessarily constitute prior art.

[0003] A photovoltaic power generation system is a power generation system that converts solar energy into electrical energy. Due to its characteristics of long lifespan and zero pollution, it has broad development prospects. In order to efficiently utilize land resources, agricultural-light complementary greenhouses can not only generate electricity using surplus solar energy but also avoid changes in land nature, and are gradually favored.

[0004] The inventors found in their research that in existing agricultural-light complementary methods, some use geometric light splitting, that is, photovoltaic cells are arranged in a certain duty cycle, so that some plants under the photovoltaic panels can receive partial sunlight at different time periods. However, this solution will essentially cause uneven illumination and lead to uneven growth of crops. There are also thin-film solar cells that can transmit part of the sunlight. However, due to the limitations of the physical properties of the thin-film solar cell wafers, their solar absorption curves often cannot meet the requirements of crop photosynthesis. It can be seen that the existing agricultural-light complementary strategies have defects and cannot simultaneously meet the lighting requirements of crops under and outside the photovoltaic panels, thus affecting the growth of crops in the greenhouse and not truly meeting the requirements of agricultural-light complementarity. Summary of the Invention

[0005] In order to solve the above problems, the present disclosure proposes an agricultural-light complementary intelligent greenhouse system and its control method, which reasonably sets the area of the photovoltaic panels, can simultaneously achieve fine adjustment of the angles of the photovoltaic panels, and can simultaneously meet the lighting requirements of crops under and outside the photovoltaic panels, truly meeting the requirements of agricultural-light complementarity.

[0006] To achieve the above object, the present disclosure adopts the following technical solutions:

[0007] One or more embodiments provide an agricultural-light complementary intelligent greenhouse system, including a greenhouse main body, photovoltaic panels, and a photovoltaic panel rotation system. The photovoltaic panels are arranged on the greenhouse main body, and the photovoltaic panel rotation system controls the rotation of the photovoltaic panels to adjust the setting angles of the photovoltaic panels, for adjusting the shielding area of the photovoltaic panels on the greenhouse main body;

[0008] The occupied area of the photovoltaic panels on the ceiling of the greenhouse main body is determined according to the ratio of the maximum light intensity for crop photosynthesis in the greenhouse to the maximum light intensity in the set area of the greenhouse.

[0009] One or more embodiments provide a control method for the above-mentioned agricultural-light complementary intelligent greenhouse system, including the following steps:

[0010] Obtain the regulation configuration information for photovoltaic panel regulation;

[0011] Calculate the shading area of the photovoltaic panels on the ceiling of the greenhouse main body according to the obtained regulation configuration information;

[0012] Determine the angle of each photovoltaic panel according to the shading area of the greenhouse main body ceiling, and control the photovoltaic panel to rotate to the corresponding angle.

[0013] One or more embodiments provide an agricultural-light complementary intelligent greenhouse system, including:

[0014] Configuration information acquisition module: configured to obtain the regulation configuration information for photovoltaic panel regulation;

[0015] Shading area calculation module: configured to calculate the shading area of the greenhouse main body ceiling according to the obtained regulation configuration information;

[0016] Photovoltaic panel angle determination module: configured to determine the angle of each photovoltaic panel according to the shading area of the greenhouse main body ceiling, and control the photovoltaic panel to rotate to the corresponding angle.

[0017] Compared with the prior art, the beneficial effects of the present disclosure are:

[0018] (1) In the present disclosure, the occupied area of the ceiling photovoltaic panels is determined according to the ratio of the maximum light intensity for photosynthesis of crops in the greenhouse to the maximum light intensity in the greenhouse setting area, which can ensure the maximum utilization of surplus solar energy on the basis of a relatively small installation cost.

[0019] (2) The present disclosure separately sets regulation schemes for regulation purposes, which can improve the fine adjustment of the regulation angle of photovoltaic panels, and can adjust the regulation schemes according to user needs and actual market conditions, truly meeting the realistic needs of various scenarios of agricultural-light complementarity.

[0020] The advantages of the present disclosure and the advantages of additional aspects will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The schematic diagrams in the specification that form a part of the present disclosure are used to provide a further understanding of the present disclosure. The schematic embodiments and descriptions thereof of the present disclosure are used to explain the present disclosure and do not constitute a limitation to the present disclosure.

[0022] Figure 1 It is a system block diagram of the electrical connection equipment of the agricultural-light complementary intelligent greenhouse system in Embodiment 1 of the present disclosure

[0023] Figure 2 It is a schematic structural diagram of the agricultural-light complementary intelligent greenhouse system in Embodiment 1 of the present disclosure;

[0024] Figure 3 It is a schematic structural diagram of the photovoltaic panel rotation system according to Embodiment 1 of the present disclosure;

[0025] Figure 4 It is a flowchart of the regulation method according to Embodiment 2 of the present disclosure;

[0026] Among them: 1. Greenhouse main body, 2. Light intensity sensor, 3. Photovoltaic panel, 4. Photovoltaic panel rotation bracket, 5. Photovoltaic panel rotation shaft, 6. Diffuse transmission glass. Specific embodiments

[0027] The present disclosure will be further described below in conjunction with the drawings and embodiments.

[0028] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present disclosure. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. It should be noted that, without conflict, the various embodiments and features in the present disclosure can be combined with each other. The embodiments will be described in detail below with reference to the drawings.

[0030] Embodiment 1

[0031] In the technical solutions disclosed in one or more embodiments, as Figures 1 to 3 shown, an agricultural-light complementary intelligent greenhouse system includes: a greenhouse main body 1, a photovoltaic panel 3, and a photovoltaic panel rotation system. The photovoltaic panel 3 is arranged on the greenhouse main body 1, and the photovoltaic panel rotation system controls the rotation of the photovoltaic panel 3 to adjust the setting angle of the photovoltaic panel 3, so as to adjust the shielding area of the photovoltaic panel 3 on the greenhouse main body 1;

[0032] The occupied area of the photovoltaic panel 3 on the ceiling of the greenhouse main body 1 is determined according to the ratio of the maximum light intensity for photosynthesis of crops in the greenhouse to the maximum light intensity in the greenhouse setting area.

[0033] As a further preferred solution of this embodiment, the ratio of the maximum light intensity for photosynthesis of crops in the greenhouse to the local maximum light intensity is Q, and the occupied area of the photovoltaic panel 3 is greater than 1 - Q and is evenly arranged on this basis.

[0034] The occupied area of the photovoltaic panel 3 is the ratio of the area of the photovoltaic panel 3 to the area of the ceiling of the greenhouse main body 1 when the photovoltaic panel 3 is in a parallel state with the ceiling of the greenhouse main body 1.

[0035] In this embodiment, the occupied area of the ceiling photovoltaic panel is determined according to the ratio of the maximum light intensity for photosynthesis of the crops in the greenhouse to the maximum light intensity in the greenhouse setting area, which can ensure the maximum utilization of surplus solar energy on the basis of a relatively low installation cost.

[0036] In some embodiments, the ceiling of the greenhouse main body 1 is made of a light-transmitting material. Preferably, a diffusing transmission glass 6 can be used for construction, which can avoid uneven indoor lighting caused by the shading of the photovoltaic panel 3 on the ceiling and affect the growth of crops.

[0037] The photovoltaic panel 3 is controlled by a photovoltaic panel rotation system. A feasible technical solution is that the photovoltaic panel rotation system includes a photovoltaic panel rotation bracket 4, a photovoltaic panel rotation shaft 5, a rotation controller, and a light intensity sensor 2. The rotation controller adjusts the angle of the photovoltaic panel 3 according to the change in light intensity obtained by the light intensity sensor 2, the solar azimuth angle, and the lighting requirements of the crops.

[0038] Optionally, the lighting requirements of the crops can be judged by the light intensity at the light saturation point of the crops.

[0039] Optionally, the solar azimuth angle is calculated by a solar azimuth angle calculator based on the geographical location of the greenhouse.

[0040] In some embodiments, the structure of the photovoltaic panel rotation bracket 4 is a frame-shaped bracket, including two bracket legs for fixing two opposite sides of the photovoltaic panel 3. The photovoltaic panel rotation shaft 5 is arranged on the ceiling of the greenhouse main body 1 to drive the photovoltaic panel rotation bracket 4 to rotate relative to the fixed position of the photovoltaic panel rotation shaft 5.

[0041] The frame surface of the bracket in this embodiment is parallel to the photovoltaic panel 3. As Figure 2 shown, in the illustrated state, the frame surface of the bracket is in the horizontal plane and the photovoltaic panel 3 faces upward; when the bracket rotates to the right in the direction of the arrow, the frame surface becomes vertical, and the photovoltaic panel 3 is in a vertical state; when the bracket continues to rotate to the right until the frame surface returns to the horizontal plane, the photovoltaic panel 3 faces downward.

[0042] Specifically, the photovoltaic panel rotation shaft 5 and the photovoltaic panel rotation bracket 4 are placed in the north-south direction to ensure that the photovoltaic panel 3 rotates east-west.

[0043] The rotation controller outputs corresponding control instructions to control the adjustment of the angle of the photovoltaic panel 3. The adjustment scheme of the photovoltaic panel 3 is different according to different adjustment purposes. When no crops are planted, the photovoltaic panel 3 receives the maximum light throughout the day. Specifically, the rotation controller is configured to execute the following regulation method:

[0044] Step 1: Obtain the regulation configuration information for photovoltaic panel regulation;

[0045] In this step, the configuration information includes the regulation purpose, including maximizing power generation, maximizing crop yield, or maximizing economic benefits;

[0046] Furthermore, the configuration information may also include the types of crops in the greenhouse and their distribution in the greenhouse;

[0047] Step 2: Calculate the shading area of the photovoltaic panels 3 on the ceiling of the greenhouse main body 1 according to the obtained regulation configuration information;

[0048] Step 3: Determine the angle of each photovoltaic panel 3 according to the shading area on the ceiling of the greenhouse main body 1, and control the photovoltaic panel 3 to rotate to the corresponding angle.

[0049] Calculate the shading area of the ceiling of the greenhouse main body 1 according to the obtained regulation configuration information, specifically as follows:

[0050] (1) If maximizing power generation or growing shade-tolerant crops in the greenhouse, the photovoltaic panels 3 receive the maximum sunlight throughout the day, and the angle of the photovoltaic panels 3 is adjusted in real time according to the solar azimuth angle;

[0051] (2) If maximizing crop yield, the photovoltaic panels 3 are parallel to the incident light throughout the day except when the sunlight intensity exceeds the light saturation point intensity of the crops;

[0052] When the sunlight intensity exceeds the light saturation point intensity of the crops, calculate the shading area of each photovoltaic panel 3 at each moment according to the ratio of the sunlight intensity exceeding the light saturation point intensity of the crops to the sunlight intensity, and adjust the angle of the shading board;

[0053] Specifically, assume that the sunlight intensity is lux, the light saturation point intensity of the crops is lux, the area of the photovoltaic panel 3 is , and the area of the greenhouse ceiling is . Then, adjust the angle of the photovoltaic panel 3 according to the solar azimuth angle and altitude angle to ensure that the shading area . And, the front of the photovoltaic panel 3 can receive sunlight.

[0054] (3) If maximizing income, with the goal of maximizing the electricity generation income and the grain income, construct an objective function to solve the shading ratio, calculate the shading area of the photovoltaic panel 3, and adjust the angle of the shading board;

[0055] Specifically, determine the angle of the photovoltaic panel according to the electricity price, grain price, grain yield at different light intensities, and electricity generation amount of the photovoltaic panel 3. The objective function is as follows:

[0056]

[0057] In the formula, z is the total income, are the electricity price and the grain price respectively, are the electricity generation and the grain output respectively, x is the percentage of the incident greenhouse roof light received by the photovoltaic panel 3, is the number of days for crop growth, is the expected value of the sunlight intensity on the i-th day, is the grain output C and the light intensity SI is a function. It is obtained through calculation x The value of is obtained, and the shading area of the photovoltaic panel 3 is calculated as: , and the orientation of the photovoltaic panel 3 is adjusted according to the shading area.

[0058] Furthermore, the objective function is solved by using a programming solver software (such as IBM ILOG CPLEX, OpenSolver, matlab, etc.).

[0059] In this embodiment, control schemes are respectively set for the control purposes, which can improve the fine adjustment of the control angle of the photovoltaic panel, and can adjust the control scheme according to the user's needs and the actual market, truly meeting the realistic needs of various scenarios of the combination of agriculture and photovoltaics.

[0060] Furthermore, the rotation controller is configured to execute the following control method: obtain weather forecast information, and when encountering bad weather, adjust the photovoltaic panel 3 so that the back side faces up;

[0061] Specifically, in case of bad weather such as hail and sandstorm weather, the photovoltaic panel 3 can be flipped 180°, with the back side facing up, to avoid damage to the photovoltaic panel 3.

[0062] Energy storage batteries can be provided in the greenhouse to store part of the electricity, ensuring the needs of crop irrigation, light supplementation and heating in the greenhouse, and the remaining electricity is output to the grid. If the electricity generated by the photovoltaic panel 3 cannot meet the greenhouse demand, electricity is provided by the grid;

[0063] Specifically, energy storage batteries are connected to the photovoltaic panel 3 and can supply power to electrical equipment. Optionally, the electrical equipment is the equipment set in the greenhouse, which can include heating equipment, irrigation equipment, lighting equipment, etc.

[0064] As a further technical solution of this embodiment, it can also include environmental sensors arranged in the greenhouse, and the operation of the greenhouse electrical equipment is controlled according to the collected environmental information.

[0065] Optionally, the environmental sensors can include temperature sensors, humidity sensors, etc.; used to collect temperature and humidity data in the greenhouse.

[0066] In use, according to the plant growth requirements, humidity and temperature data in the greenhouse, the heating equipment, irrigation equipment and lighting equipment are timely controlled to provide heating, irrigation and supplementary lighting for the crops.

[0067] Embodiment 2

[0068] Based on Embodiment 1, a control method for an agricultural-light complementary intelligent greenhouse system is provided in this embodiment, which can be implemented in a rotation controller, as Figure 4 shown, and includes the following steps:

[0069] Step 1: Obtain the control configuration information for the photovoltaic panel control;

[0070] In this step, the configuration information includes the control purpose, including the purpose of maximizing power output, maximizing crop yield or maximizing economic benefits;

[0071] Furthermore, the configuration information may also include the crop types in the greenhouse and their distribution in the greenhouse;

[0072] Step 2: Calculate the shading area of the ceiling of the greenhouse main body 1 according to the obtained control configuration information;

[0073] Step 3: Determine the angle of each photovoltaic panel 3 according to the shading area of the ceiling of the greenhouse main body 1, and control the photovoltaic panel 3 to rotate to the corresponding angle.

[0074] Calculate the shading area of the ceiling of the greenhouse main body 1 according to the obtained control configuration information, specifically as follows:

[0075] (1) If maximizing power output or growing shade-tolerant crops in the greenhouse, the photovoltaic panel 3 receives the maximum sunlight throughout the day, and the angle of the photovoltaic panel 3 is adjusted in real time according to the solar azimuth angle;

[0076] (2) If maximizing crop yield, the photovoltaic panel 3 is parallel to the incident light throughout the day except when the sunlight intensity exceeds the light saturation point intensity of the crops;

[0077] When the sunlight intensity exceeds the light saturation point intensity of the crops, calculate the shading area of the photovoltaic panel 3 at each moment according to the ratio of the sunlight intensity exceeding the light saturation point intensity of the crops to the sunlight intensity, and adjust the angle of the shading plate;

[0078] Specifically, assume that the sunlight intensity is lux, the light saturation point intensity of the crops is lux, the area of the photovoltaic panel 3 is , the area of the greenhouse ceiling is , then adjust the angle of the photovoltaic panel 3 according to the solar azimuth angle and altitude angle to ensure the shading area . And, the front of the photovoltaic panel 3 can receive sunlight.

[0079] (3) If maximizing revenue, with the goal of maximizing electricity generation revenue and food revenue, construct an objective function to solve for the shading ratio, calculate the shading area of the photovoltaic panel 3, and adjust the angle of the shading board;

[0080] Specifically, determine the angle of the photovoltaic panel based on the electricity price, grain price, grain yield under different light intensities, and the electricity generation of the photovoltaic panel 3. The calculation method is as follows:

[0081]

[0082] In the formula, z is the total revenue, are the electricity price and the grain price respectively, are the electricity generation and the grain yield respectively, x is the percentage of the incident greenhouse ceiling light received by the photovoltaic panel 3, is the number of days of crop growth, is the expected value of the sunlight intensity on the i-th day, is the grain yield C and the light intensity SI is a function of. Obtain the value of x through calculation. The shading area of the photovoltaic panel 3 is calculated as: , and adjust the orientation of the photovoltaic panel 3 according to the shading area.

[0083] In this embodiment, control schemes are respectively set for different control purposes, which can improve the fine adjustment of the control angle of the photovoltaic panel, and can adjust the control scheme according to user needs and the actual market, truly meeting the real needs of various scenarios of agricultural-photovoltaic complementary.

[0084] Further, the rotation controller is configured to execute the following control method: obtain weather forecast information, and when encountering bad weather, adjust the photovoltaic panel 3 so that the back side faces up;

[0085] Specifically, in case of bad weather such as hail and sandstorm weather, the photovoltaic panel 3 can be flipped 180° so that the back side faces up to avoid damage to the photovoltaic panel 3.

[0086] Embodiment 3

[0087] Based on Embodiment 2, this embodiment provides an agricultural-photovoltaic complementary intelligent greenhouse system, including:

[0088] Configuration information acquisition module: configured to acquire the control configuration information of the photovoltaic panel regulation;

[0089] In this module, the configuration information includes the control purpose, including the purpose of maximizing electricity production, the purpose of maximizing crop yield, or the purpose of maximizing economic benefits;

[0090] Further, the configuration information may also include the types of crops in the greenhouse and their distribution in the greenhouse;

[0091] Light-shielding area calculation module: configured to calculate the light-shielding area of the ceiling of the greenhouse main body 1 according to the obtained regulation configuration information;

[0092] Photovoltaic panel angle determination module: configured to determine the angle of each photovoltaic panel 3 according to the light-shielding area of the ceiling of the greenhouse main body 1, and control the photovoltaic panel 3 to rotate to the corresponding angle.

[0093] Calculate the light-shielding area of the ceiling of the greenhouse main body 1 according to the obtained regulation configuration information, as follows:

[0094] (1) If maximizing power generation or cultivating shade-tolerant crops in the greenhouse, the photovoltaic panel 3 receives maximum sunlight throughout the day, and the angle of the photovoltaic panel 3 is adjusted in real time according to the solar azimuth angle;

[0095] (2) If maximizing crop yield, the photovoltaic panel 3 is parallel to the incident light throughout the day except when the sunlight intensity exceeds the light saturation point intensity of the crops;

[0096] When the sunlight intensity exceeds the light saturation point intensity of the crops, calculate the light-shielding area of the photovoltaic panel 3 at each moment according to the ratio of the sunlight intensity exceeding the light saturation point intensity of the crops to the sunlight intensity, and adjust the angle of the light-shielding plate;

[0097] Specifically, assume that the sunlight intensity is lux, the light saturation point intensity of the crops is lux, the area of the photovoltaic panel 3 is and the area of the greenhouse ceiling is , then adjust the angle of the photovoltaic panel 3 according to the solar azimuth angle and altitude angle to ensure that the light-shielding area . And, the front of the photovoltaic panel 3 can receive sunlight.

[0098] (3) If maximizing income, with the maximum of power generation income and food income as the goal, construct an objective function to solve the light-shielding ratio, calculate the light-shielding area of the photovoltaic panel 3, and adjust the angle of the light-shielding plate;

[0099] Specifically, determine the angle of the photovoltaic panel according to the electricity price, grain price, grain yield under different light intensities and the power generation amount of the photovoltaic panel 3, and the calculation method is as follows:

[0100]

[0101] In the formula, z is the total income, are the electricity price and grain price respectively, are the power generation amount and grain yield respectively, x is the percentage of the photovoltaic panel 3 receiving the incident sunlight on the greenhouse ceiling, is the number of days for crop growth, is the expected value of the sunlight intensity on the i-th day, For the grain yield C and the light intensity SI function. Obtained by calculation x the value of, calculate the shading area of the photovoltaic panel 3 as: , adjust the orientation of the photovoltaic panel 3 according to the shading area.

[0102] The above are only the preferred embodiments of the present disclosure and are not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

[0103] Although the specific implementation manners of the present disclosure have been described above in conjunction with the accompanying drawings, it is not a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that, based on the technical solutions of the present disclosure, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present disclosure.

Claims

1. An agricultural and photovoltaic complementary intelligent greenhouse system, characterized in that: It includes a greenhouse main body, photovoltaic panels and a photovoltaic panel rotation system. The photovoltaic panels are arranged on the greenhouse main body, and the photovoltaic panel rotation system controls the rotation of the photovoltaic panels to adjust the installation angle of the photovoltaic panels, so as to adjust the shielding area of the photovoltaic panels on the greenhouse main body. The occupied area of the photovoltaic panels on the ceiling of the greenhouse main body is determined according to the ratio of the maximum light intensity at which the crops in the greenhouse can carry out photosynthesis to the maximum light intensity in the greenhouse setting area. The ratio of the maximum light intensity at which the crops in the greenhouse can carry out photosynthesis to the local maximum light intensity is Q, and the occupied area of the photovoltaic panels is greater than 1–Q. The photovoltaic panel rotation system includes a photovoltaic panel rotation bracket, a photovoltaic panel rotation shaft, a rotation controller and a light intensity sensor. The rotation controller adjusts the angle of the photovoltaic panels according to the solar azimuth angle, the lighting requirements of the crops, and the change in light intensity obtained by the light intensity sensor. Among them, the photovoltaic panel rotation shaft and the photovoltaic panel rotation bracket are placed north-south to ensure that the photovoltaic panels rotate east-west. Among them, the rotation controller is configured to execute the following control method: obtain weather forecast information, and when encountering bad weather, adjust the photovoltaic panels so that the back faces up.

2. The agro-photo complementary intelligent greenhouse system according to claim 1, characterized in that: The occupied area of the photovoltaic panels is the ratio of the area of the photovoltaic panels to the area of the ceiling of the greenhouse main body when the photovoltaic panels are parallel to the ceiling of the greenhouse main body. The ceiling of the greenhouse main body is built with diffusive transmission glass.

3. The agro-photo complementary intelligent greenhouse system according to claim 1, wherein: The lighting requirements of the crops are judged by the light intensity at the light saturation point of the crops. The structure of the photovoltaic panel rotation bracket is a frame-shaped bracket, including two bracket legs to fix two opposite sides of the photovoltaic panel. The photovoltaic panel rotation shaft is arranged on the ceiling of the greenhouse main body, driving the photovoltaic panel rotation bracket to rotate relative to the fixed position of the photovoltaic panel rotation shaft.

4. The agro-photo complementary intelligent greenhouse system according to claim 1, characterized in that, The rotation controller is configured to execute the following control method: Obtain the control configuration information for the photovoltaic panel control; Calculate the shading area of the photovoltaic panels on the ceiling of the greenhouse main body according to the obtained control configuration information; Determine the angle of each photovoltaic panel according to the shading area of the ceiling of the greenhouse main body, and control the photovoltaic panels to rotate to the corresponding angles.

5. The agro-photo complementary intelligent greenhouse system according to claim 4, wherein: The configuration information includes control objectives, including the objective of maximizing power generation, the objective of maximizing crop yield, or the objective of maximizing economic benefits; The configuration information further includes the types of crops in the greenhouse and their distribution in the greenhouse; Calculate the shading area of the ceiling of the greenhouse main body according to the obtained control configuration information, specifically as follows: If maximizing power generation or growing shade-tolerant crops in the greenhouse, the photovoltaic panels receive maximum light throughout the day, and the angle of the photovoltaic panels is adjusted in real time according to the solar azimuth angle; If maximizing crop yield, the photovoltaic panels are parallel to the incident light throughout the day except when the sunlight intensity exceeds the light intensity at the light saturation point of the crops; when the sunlight intensity exceeds the light intensity at the light saturation point of the crops, calculate the shading area of each photovoltaic panel at each moment according to the ratio of the sunlight intensity exceeding the light intensity at the light saturation point of the crops to the sunlight intensity, and adjust the angle of the shading panels. If maximizing revenue, with the goal of maximizing electricity generation revenue and food revenue, construct an objective function to solve for the shading ratio, calculate the shading area of the photovoltaic panels, and adjust the angle of the shading plates. Specifically, determine the angle of the photovoltaic panels based on electricity price, grain price, grain yield at different light intensities, and electricity generation of the photovoltaic panels. The objective function is as follows: Wherein, z is the total income, are the electricity price and the grain price respectively, are the electricity generation amount and the grain output respectively, x is the percentage of the photovoltaic panel receiving the incident light on the greenhouse ceiling, is the number of days for crop growth, is the expected value of the sunlight intensity on the i-th day, is the grain output C and the light intensity SI The function of is obtained by calculation x The value of is calculated, and the shading area of the photovoltaic panel is: , and the orientation of the photovoltaic panel is adjusted according to the shading area.

6. The agro-photo complementary intelligent greenhouse system according to claim 1, characterized in that, including: Configuration information acquisition module: configured to acquire the regulation configuration information for photovoltaic panel regulation; Shading area calculation module: configured to calculate the shading area of the greenhouse main roof according to the acquired regulation configuration information; Photovoltaic panel angle determination module: configured to determine the angle of each photovoltaic panel according to the shading area of the greenhouse main roof and control the photovoltaic panel to rotate to the corresponding angle.

7. A control method for an agricultural and photovoltaic complementary intelligent greenhouse system according to any one of claims 1-6, characterized in that, The following steps are included: Acquire the regulation configuration information for photovoltaic panel regulation; Calculate the shading area of the photovoltaic panels on the greenhouse main roof according to the acquired regulation configuration information; Determine the angle of each photovoltaic panel according to the shading area of the greenhouse main roof and control the photovoltaic panel to rotate to the corresponding angle.

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