A method and system for installing and adjusting reflective film in a photovoltaic power station

Abstract

The invention relates to the technical field of photovoltaic power generation, and discloses a method and system for installing and adjusting a reflective film in a photovoltaic power station. The method and system obtain an unobstructed time parameter of a photovoltaic power station within a time threshold, and determine a plurality of light receiving angles of the reflective film within the unobstructed time parameter. The optimal light receiving angle of the reflective film is determined based on the plurality of light receiving angles, and the optimal light receiving angle is used as a target installation angle of the reflective film. The adjustment parameters of an angle adjustment device are set according to a relationship between the target installation angle of the reflective film and the current installation angle of the reflective film. The real-time light intensity value of the photovoltaic power station is collected, and the time threshold is corrected based on the real-time light intensity value. The invention can intelligently install and adjust the reflective film of the photovoltaic power station, improve the power generation efficiency of the back side of the photovoltaic module, and thus greatly improve the power generation of the photovoltaic power station.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a method and system for installing and adjusting a reflective film in a photovoltaic power station. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. It is mainly composed of three parts: solar panels (modules), controllers and inverters, and the main components are composed of electronic components. After solar cells are connected in series and packaged for protection, they can form large-area solar cell modules, which are then combined with power controllers and other components to form photovoltaic power generation devices.

[0003] The power generation of existing photovoltaic power generation devices is limited by light source, conversion loss (loss in the power transmission process) and surface area (the light-shielded part of the front conductive wire), and its power generation efficiency is only 20%. The laboratory experimental data can only reach a conversion efficiency of 25% at most. In order to reduce the waste of light energy, the current research direction is to set a reflective film with a microstructure layer on the substrate, but the reflective film cannot change with the conversion of light, resulting in poor power generation efficiency of photovoltaic power generation devices, resulting in waste of light energy.

[0004] Therefore, how to provide a method and system for intelligently installing and adjusting the reflective film of a photovoltaic power station is a technical problem that needs to be solved. Summary of the invention

[0005] The embodiment of the present invention provides a method and system for installing and adjusting a reflective film of a photovoltaic power station, which is used to solve the technical problem in the prior art that the reflective film of a photovoltaic power station cannot be intelligently installed and adjusted, and the power generation efficiency of the photovoltaic power station cannot be improved.

[0006] In order to achieve the above object, the present invention provides a method for installing and adjusting a reflective film in a photovoltaic power station, the method comprising:

[0007] Acquire an unblocked time parameter of the photovoltaic power station within a time threshold, and determine a plurality of light receiving angles of the reflective film within the unblocked time parameter;

[0008] Determine an optimal light receiving angle of the reflective film based on a plurality of light receiving angles, and use the optimal light receiving angle as a target installation angle of the reflective film;

[0009] setting an adjustment parameter of an angle adjustment device according to a relationship between a target installation angle of the reflective film and a current installation angle of the reflective film;

[0010] The real-time light intensity value of the photovoltaic power station is collected, and the time threshold is corrected based on the real-time light intensity value.

[0011] In one embodiment, when determining a plurality of light receiving angles of the reflective film within the unblocked time parameter, the method includes:

[0012] Obtaining the local latitude and local time of the location of the photovoltaic power station, and calculating the solar altitude angle according to the local latitude and the local time;

[0013] The light receiving angle of the reflective film is calculated according to the solar altitude angle and the current installation angle of the reflective film.

[0014] In one embodiment, the solar altitude angle is calculated according to the following formula:

[0015] a=arcsin(sinφsinδ+cosφcosδcost);

[0016] Among them, a is the solar altitude angle, δ is the solar declination angle, φ is the local latitude, and t is the local time;

[0017] When calculating the light receiving angle of the photovoltaic power station according to the following formula:

[0018] W = 180 - (a + b);

[0019] Wherein, W is the light receiving angle of the photovoltaic power station, and b is the installation angle of the current photovoltaic panel.

[0020] In one embodiment, when setting the adjustment parameters of the angle adjustment device according to the relationship between the target installation angle of the reflective film and the current installation angle of the reflective film, it includes:

[0021] Calculating an angle difference Ab between a target installation angle A of the reflective film and a current installation angle b of the reflective film;

[0022] Determine the rotation time of the motor in the angle adjustment device according to the angle difference Ab,

[0023] Preset angle difference matrix B, set B (B1, B2, B3, B4), where B1 is the first preset angle difference, B2 is the second preset angle difference, B3 is the third preset angle difference, B4 is the fourth preset angle difference, and B1 < B2 < B3 < B4;

[0024] A rotation time matrix D of the preset motor is set as D(D1, D2, D3, D4, D5), wherein D1 is a first preset rotation time, D2 is a second preset rotation time, D3 is a third preset rotation time, D4 ​​is a fourth preset rotation time, D5 is a fifth preset rotation time, and D1<D2<D3<D4<D5;

[0025] The rotation time of the motor is set according to the relationship between the angle difference Ab and each preset angle difference:

[0026] When Ab<B1, the first preset rotation time D1 is selected as the rotation time of the motor;

[0027] When B1≤Ab<B2, the second preset rotation time D2 is selected as the rotation time of the motor;

[0028] When B2≤Ab<B3, the third preset rotation time D3 is selected as the rotation time of the motor;

[0029] When B3≤Ab<B4, the fourth preset rotation time D4 is selected as the rotation time of the motor;

[0030] When B4≤Ab, the fifth preset rotation time D5 is selected as the rotation time of the motor.

[0031] In one embodiment, when the time threshold is corrected based on the real-time light intensity value, it includes:

[0032] Obtaining the real-time illumination intensity E and the time threshold T;

[0033] Preset the real-time illumination intensity matrix G, set G(G1, G2, G3, G4), where G1 is the first preset real-time illumination intensity, G2 is the second preset real-time illumination intensity, G3 is the third preset real-time illumination intensity, G4 is the fourth preset real-time illumination intensity, and G1<G2<G3<G4;

[0034] A preset time threshold correction coefficient matrix h, set h(h1, h2, h3, h4, h5), wherein h1 is the first preset time threshold correction coefficient, h2 is the second preset time threshold correction coefficient, h3 is the third preset time threshold correction coefficient, h4 is the fourth preset time threshold correction coefficient, h5 is the fifth preset time threshold correction coefficient, and 0.8

[0035] The time threshold T is modified according to the relationship between the real-time illumination intensity E and each preset real-time illumination intensity:

[0036] When E<G1, the first preset time threshold correction coefficient h1 is selected to correct the time threshold T, and the corrected time threshold is T*h1;

[0037] When G1≤E<G2, the second preset time threshold correction coefficient h2 is selected to correct the time threshold T, and the corrected time threshold is T*h2;

[0038] ​When G2≤E<G3, the third preset time threshold correction coefficient h3 is selected to correct the time threshold T, and the corrected time threshold is T*h3;

[0039] When G3≤E<G4, the fourth preset time threshold correction coefficient h4 is selected to correct the time threshold T, and the corrected time threshold is T*h4;

[0040] When G4≤E, the fifth preset time threshold correction coefficient h5 is selected to correct the time threshold T, and the corrected time threshold is T*h5.

[0041] In order to achieve the above object, the present invention provides a photovoltaic power station reflective film installation and adjustment system, the system comprising:

[0042] An acquisition module, used to acquire an unobstructed time parameter of the photovoltaic power station within a time threshold, and determine a plurality of light receiving angles of the reflective film within the unobstructed time parameter;

[0043] A determination module, configured to determine an optimal light receiving angle of the reflective film based on a plurality of light receiving angles, and use the optimal light receiving angle as a target installation angle of the reflective film;

[0044] a setting module, configured to set adjustment parameters of an angle adjustment device according to a relationship between a target installation angle of the reflective film and a current installation angle of the reflective film;

[0045] The correction module is used to collect the real-time light intensity value of the photovoltaic power station and correct the time threshold based on the real-time light intensity value.

[0046] In one embodiment, the acquisition module is specifically used for:

[0047] The acquisition module is used to acquire the local latitude and local time of the location of the photovoltaic power station, and calculate the solar altitude angle according to the local latitude and the local time;

[0048] The acquisition module is used to calculate the light receiving angle of the reflective film according to the solar altitude angle and the current installation angle of the reflective film.

[0049] In one embodiment, the acquisition module is specifically used for:

[0050] The acquisition module is used to calculate the solar altitude angle according to the following formula:

[0051] a=arcsin(sinφsinδ+cosφcosδcost);

[0052] Among them, a is the solar altitude angle, δ is the solar declination angle, φ is the local latitude, and t is the local time;

[0053] The acquisition module is used to calculate the light receiving angle of the photovoltaic power station according to the following formula:

[0054] W = 180 - (a + b);

[0055] Wherein, W is the light receiving angle of the photovoltaic power station, and b is the installation angle of the current photovoltaic panel.

[0056] In one embodiment, the setting module is specifically used to:

[0057] The setting module is used to calculate the angle difference Ab between the target installation angle A of the reflective film and the current installation angle b of the reflective film;

[0058] The setting module is used to determine the rotation time of the motor in the angle adjustment device according to the angle difference Ab,

[0059] The setting module is used to preset the angle difference matrix B, setting B (B1, B2, B3, B4), wherein B1 is a first preset angle difference, B2 is a second preset angle difference, B3 is a third preset angle difference, B4 is a fourth preset angle difference, and B1 < B2 < B3 < B4;

[0060] The setting module is used to preset the rotation time matrix D of the motor, setting D(D1, D2, D3, D4, D5), wherein D1 is the first preset rotation time, D2 is the second preset rotation time, D3 is the third preset rotation time, D4 ​​is the fourth preset rotation time, D5 is the fifth preset rotation time, and D1<D2<D3<D4<D5;

[0061] The setting module is used to set the rotation time of the motor according to the relationship between the angle difference Ab and each preset angle difference:

[0062] When Ab<B1, the first preset rotation time D1 is selected as the rotation time of the motor;

[0063] When B1≤Ab<B2, the second preset rotation time D2 is selected as the rotation time of the motor;

[0064] When B2≤Ab<B3, the third preset rotation time D3 is selected as the rotation time of the motor;

[0065] When B3≤Ab<B4, the fourth preset rotation time D4 is selected as the rotation time of the motor;

[0066] When B4≤Ab, the fifth preset rotation time D5 is selected as the rotation time of the motor.

[0067] In one embodiment, the correction module is specifically used to:

[0068] The correction module is used to obtain the real-time illumination intensity E and the time threshold T;

[0069] The correction module is used to preset the real-time illumination intensity matrix G, and set G (G1, G2, G3, G4), wherein G1 is the first preset real-time illumination intensity, G2 is the second preset real-time illumination intensity, G3 is the third preset real-time illumination intensity, G4 is the fourth preset real-time illumination intensity, and G1<G2<G3<G4;

[0070] The correction module is used to preset the time threshold correction coefficient matrix h, set h(h1, h2, h3, h4, h5), wherein h1 is the first preset time threshold correction coefficient, h2 is the second preset time threshold correction coefficient, h3 is the third preset time threshold correction coefficient, h4 is the fourth preset time threshold correction coefficient, h5 is the fifth preset time threshold correction coefficient, and 0.8

[0071] The correction module is used to correct the time threshold T according to the relationship between the real-time illumination intensity E and each preset real-time illumination intensity:

[0072] When E<G1, the first preset time threshold correction coefficient h1 is selected to correct the time threshold T, and the corrected time threshold is T*h1;

[0073] When G1≤E<G2, the second preset time threshold correction coefficient h2 is selected to correct the time threshold T, and the corrected time threshold is T*h2;

[0074] When G2≤E<G3, the third preset time threshold correction coefficient h3 is selected to correct the time threshold T, and the corrected time threshold is T*h3;

[0075] When G3≤E<G4, the fourth preset time threshold correction coefficient h4 is selected to correct the time threshold T, and the corrected time threshold is T*h4;

[0076] When G4≤E, the fifth preset time threshold correction coefficient h5 is selected to correct the time threshold T, and the corrected time threshold is T*h5.

[0077] The present invention provides a method and system for installing and adjusting a reflective film in a photovoltaic power station, which has the following beneficial effects compared with the prior art:

[0078] ​The present invention discloses a method and system for installing and adjusting a reflective film in a photovoltaic power station. The method obtains an unobstructed time parameter of the photovoltaic power station within a time threshold, determines a plurality of light receiving angles of the reflective film within the unobstructed time parameter, determines an optimal light receiving angle of the reflective film based on the plurality of light receiving angles, and uses the optimal light receiving angle as a target installation angle of the reflective film. The adjustment parameters of an angle adjustment device are set according to a relationship between the target installation angle of the reflective film and a current installation angle of the reflective film. The real-time light intensity value of the photovoltaic power station is collected, and the time threshold is corrected based on the real-time light intensity value. The present invention can intelligently install and adjust the reflective film of the photovoltaic power station, improve the power generation efficiency of the back side of the photovoltaic module, and thus greatly improve the power generation of the photovoltaic power station. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Figure 1 A schematic diagram of a process of installing and adjusting a reflective film of a photovoltaic power station in an embodiment of the present invention is shown;

[0080] Figure 2 A schematic structural diagram of a reflective film installation and adjustment system for a photovoltaic power station in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0081] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0082] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0083] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0084] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0085] The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

[0086] like Figure 1 As shown, an embodiment of the present invention discloses a method for installing and adjusting a reflective film in a photovoltaic power station, the method comprising:

[0087] S110: Acquire an unblocked time parameter of the photovoltaic power station within a time threshold, and determine a plurality of light receiving angles of the reflective film within the unblocked time parameter.

[0088] In this embodiment, the unblocked time parameter refers to the time during which the photovoltaic power station can receive sunlight.

[0089] In some embodiments of the present application, when determining a plurality of light receiving angles of the reflective film within the unblocked time parameter, the method includes:

[0090] Obtaining the local latitude and local time of the location of the photovoltaic power station, and calculating the solar altitude angle according to the local latitude and the local time;

[0091] The light receiving angle of the reflective film is calculated according to the solar altitude angle and the current installation angle of the reflective film.

[0092] The solar altitude angle is calculated according to the following formula:

[0093] a=arcsin(sinφsinδ+cosφcosδcost);

[0094] Among them, a is the solar altitude angle, δ is the solar declination angle, φ is the local latitude, and t is the local time;

[0095] When calculating the light receiving angle of the photovoltaic power station according to the following formula:

[0096] W = 180 - (a + b);

[0097] Wherein, W is the light receiving angle of the photovoltaic power station, and b is the installation angle of the current photovoltaic panel.

[0098] In this embodiment, the local time t is calculated according to the following formula: t=Beijing time + (φ-120) / 15. The local latitude can be obtained according to the longitude and latitude measuring equipment. The present invention can provide reliable data support for the installation and adjustment of the reflective film by calculating the light receiving angle of the reflective film.

[0099] S120: Determine an optimal light receiving angle of the reflective film based on a plurality of light receiving angles, and use the optimal light receiving angle as a target installation angle of the reflective film.

[0100] In this embodiment, the optimal light receiving angle refers to the angle at which the reflective film can absorb light energy to the maximum extent. The optimal light receiving angle is used as the target installation angle of the reflective film, and the installation angle of the reflective film is adjusted.

[0101] S130: Setting adjustment parameters of the angle adjustment device according to the relationship between the target installation angle of the reflective film and the current installation angle of the reflective film.

[0102] In some embodiments of the present application, an angle difference Ab between a target installation angle A of the reflective film and a current installation angle b of the reflective film is calculated;

[0103] Determine the rotation time of the motor in the angle adjustment device according to the angle difference Ab,

[0104] Preset angle difference matrix B, set B (B1, B2, B3, B4), where B1 is the first preset angle difference, B2 is the second preset angle difference, B3 is the third preset angle difference, B4 is the fourth preset angle difference, and B1 < B2 < B3 < B4;

[0105] A rotation time matrix D of the preset motor is set as D(D1, D2, D3, D4, D5), wherein D1 is a first preset rotation time, D2 is a second preset rotation time, D3 is a third preset rotation time, D4 ​​is a fourth preset rotation time, D5 is a fifth preset rotation time, and D1<D2<D3<D4<D5;

[0106] The rotation time of the motor is set according to the relationship between the angle difference Ab and each preset angle difference:

[0107] When Ab<B1, the first preset rotation time D1 is selected as the rotation time of the motor;

[0108] When B1≤Ab<B2, the second preset rotation time D2 is selected as the rotation time of the motor;

[0109] When B2≤Ab<B3, the third preset rotation time D3 is selected as the rotation time of the motor;

[0110] When B3≤Ab<B4, the fourth preset rotation time D4 is selected as the rotation time of the motor;

[0111] When B4≤Ab, the fifth preset rotation time D5 is selected as the rotation time of the motor.

[0112] In this embodiment, the angle adjustment device is provided with a motor and a rotating shaft, and the rotating shaft is connected to the reflective film. The angle of the reflective film is adjusted by the rotation of the motor. The rotation time of the motor is set according to the relationship between the angle difference Ab and each preset angle difference. By setting the rotation time of the motor, the present invention can make the reflective film reach the target installation angle and avoid the phenomenon of inadequate adjustment or excessive adjustment.

[0113] S140: Collecting a real-time light intensity value of the photovoltaic power station, and correcting the time threshold based on the real-time light intensity value.

[0114] In some embodiments of the present application, when the time threshold is corrected based on the real-time light intensity value, it includes:

[0115] Obtaining the real-time illumination intensity E and the time threshold T;

[0116] Preset the real-time illumination intensity matrix G, set G(G1, G2, G3, G4), where G1 is the first preset real-time illumination intensity, G2 is the second preset real-time illumination intensity, G3 is the third preset real-time illumination intensity, G4 is the fourth preset real-time illumination intensity, and G1<G2<G3<G4;

[0117] A preset time threshold correction coefficient matrix h, set h(h1, h2, h3, h4, h5), wherein h1 is the first preset time threshold correction coefficient, h2 is the second preset time threshold correction coefficient, h3 is the third preset time threshold correction coefficient, h4 is the fourth preset time threshold correction coefficient, h5 is the fifth preset time threshold correction coefficient, and 0.8

[0118] The time threshold T is modified according to the relationship between the real-time illumination intensity E and each preset real-time illumination intensity:

[0119] When E<G1, the first preset time threshold correction coefficient h1 is selected to correct the time threshold T, and the corrected time threshold is T*h1;

[0120] When G1≤E<G2, the second preset time threshold correction coefficient h2 is selected to correct the time threshold T, and the corrected time threshold is T*h2;

[0121] ​When G2≤E<G3, the third preset time threshold correction coefficient h3 is selected to correct the time threshold T, and the corrected time threshold is T*h3;

[0122] When G3≤E<G4, the fourth preset time threshold correction coefficient h4 is selected to correct the time threshold T, and the corrected time threshold is T*h4;

[0123] When G4≤E, the fifth preset time threshold correction coefficient h5 is selected to correct the time threshold T, and the corrected time threshold is T*h5.

[0124] In this embodiment, the time threshold refers to the time used to obtain the unobstructed time parameter of the photovoltaic power station. The time threshold can be initially set to 1 hour, or 1.5 hours, etc. When the real-time light intensity is large, it is necessary to ensure that the reflective film changes with the light receiving angle in time. Therefore, the present invention corrects the time threshold T according to the relationship between the real-time light intensity E and each preset real-time light intensities. By correcting the time threshold T, the present invention can achieve flexibility in the installation and adjustment of the reflective film and avoid energy waste.

[0125] In order to further explain the technical idea of ​​the present invention, the technical solution of the present invention is now described in combination with specific application scenarios.

[0126] Correspondingly, such as Figure 2 As shown, the present application also provides a photovoltaic power station reflective film installation and adjustment system, the system comprising:

[0127] An acquisition module, used to acquire an unobstructed time parameter of the photovoltaic power station within a time threshold, and determine a plurality of light receiving angles of the reflective film within the unobstructed time parameter;

[0128] A determination module, configured to determine an optimal light receiving angle of the reflective film based on a plurality of light receiving angles, and use the optimal light receiving angle as a target installation angle of the reflective film;

[0129] a setting module, configured to set adjustment parameters of an angle adjustment device according to a relationship between a target installation angle of the reflective film and a current installation angle of the reflective film;

[0130] The correction module is used to collect the real-time light intensity value of the photovoltaic power station and correct the time threshold based on the real-time light intensity value.

[0131] In some embodiments of the present application, the acquisition module is specifically used to:

[0132] The acquisition module is used to acquire the local latitude and local time of the location of the photovoltaic power station, and calculate the solar altitude angle according to the local latitude and the local time;

[0133] The acquisition module is used to calculate the light receiving angle of the reflective film according to the solar altitude angle and the current installation angle of the reflective film.

[0134] In some embodiments of the present application, the acquisition module is specifically used to:

[0135] The acquisition module is used to calculate the solar altitude angle according to the following formula:

[0136] a=arcsin(sinφsinδ+cosφcosδcost);

[0137] Among them, a is the solar altitude angle, δ is the solar declination angle, φ is the local latitude, and t is the local time;

[0138] The acquisition module is used to calculate the light receiving angle of the photovoltaic power station according to the following formula:

[0139] W = 180 - (a + b);

[0140] Wherein, W is the light receiving angle of the photovoltaic power station, and b is the installation angle of the current photovoltaic panel.

[0141] In some embodiments of the present application, the setting module is specifically used to:

[0142] The setting module is used to calculate the angle difference Ab between the target installation angle A of the reflective film and the current installation angle b of the reflective film;

[0143] The setting module is used to determine the rotation time of the motor in the angle adjustment device according to the angle difference Ab,

[0144] The setting module is used to preset the angle difference matrix B, setting B (B1, B2, B3, B4), wherein B1 is a first preset angle difference, B2 is a second preset angle difference, B3 is a third preset angle difference, B4 is a fourth preset angle difference, and B1 < B2 < B3 < B4;

[0145] The setting module is used to preset the rotation time matrix D of the motor, setting D(D1, D2, D3, D4, D5), wherein D1 is the first preset rotation time, D2 is the second preset rotation time, D3 is the third preset rotation time, D4 ​​is the fourth preset rotation time, D5 is the fifth preset rotation time, and D1<D2<D3<D4<D5;

[0146] The setting module is used to set the rotation time of the motor according to the relationship between the angle difference Ab and each preset angle difference:

[0147] When Ab<B1, the first preset rotation time D1 is selected as the rotation time of the motor;

[0148] When B1≤Ab<B2, the second preset rotation time D2 is selected as the rotation time of the motor;

[0149] When B2≤Ab<B3, the third preset rotation time D3 is selected as the rotation time of the motor;

[0150] When B3≤Ab<B4, the fourth preset rotation time D4 is selected as the rotation time of the motor;

[0151] When B4≤Ab, the fifth preset rotation time D5 is selected as the rotation time of the motor.

[0152] In some embodiments of the present application, the correction module is specifically used to:

[0153] The correction module is used to obtain the real-time illumination intensity E and the time threshold T;

[0154] The correction module is used to preset the real-time illumination intensity matrix G, and set G (G1, G2, G3, G4), wherein G1 is the first preset real-time illumination intensity, G2 is the second preset real-time illumination intensity, G3 is the third preset real-time illumination intensity, G4 is the fourth preset real-time illumination intensity, and G1<G2<G3<G4;

[0155] The correction module is used to preset the time threshold correction coefficient matrix h, set h(h1, h2, h3, h4, h5), wherein h1 is the first preset time threshold correction coefficient, h2 is the second preset time threshold correction coefficient, h3 is the third preset time threshold correction coefficient, h4 is the fourth preset time threshold correction coefficient, h5 is the fifth preset time threshold correction coefficient, and 0.8

[0156] The correction module is used to correct the time threshold T according to the relationship between the real-time illumination intensity E and each preset real-time illumination intensity:

[0157] When E<G1, the first preset time threshold correction coefficient h1 is selected to correct the time threshold T, and the corrected time threshold is T*h1;

[0158] When G1≤E<G2, the second preset time threshold correction coefficient h2 is selected to correct the time threshold T, and the corrected time threshold is T*h2;

[0159] ​When G2≤E<G3, the third preset time threshold correction coefficient h3 is selected to correct the time threshold T, and the corrected time threshold is T*h3;

[0160] When G3≤E<G4, the fourth preset time threshold correction coefficient h4 is selected to correct the time threshold T, and the corrected time threshold is T*h4;

[0161] When G4≤E, the fifth preset time threshold correction coefficient h5 is selected to correct the time threshold T, and the corrected time threshold is T*h5.

[0162] In summary, the embodiment of the present invention obtains the unobstructed time parameter of the photovoltaic power station within the time threshold, and determines multiple light receiving angles of the reflective film within the unobstructed time parameter, determines the optimal light receiving angle of the reflective film based on the multiple light receiving angles, and uses the optimal light receiving angle as the target installation angle of the reflective film, sets the adjustment parameters of the angle adjustment device according to the relationship between the target installation angle of the reflective film and the current installation angle of the reflective film, collects the real-time light intensity value of the photovoltaic power station, and corrects the time threshold based on the real-time light intensity value. The present invention can perform intelligent installation and adjustment of the reflective film of the photovoltaic power station, improve the power generation efficiency of the back side of the photovoltaic module, and thus greatly improve the power generation of the photovoltaic power station.

[0163] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0164] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not fully described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0165] Those skilled in the art can understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for installing and adjusting a reflective film in a photovoltaic power station, characterized in that: The method comprises: Acquire an unblocked time parameter of the photovoltaic power station within a time threshold, and determine a plurality of light receiving angles of the reflective film within the unblocked time parameter; Determine an optimal light receiving angle of the reflective film based on a plurality of light receiving angles, and use the optimal light receiving angle as a target installation angle of the reflective film; setting an adjustment parameter of an angle adjustment device according to a relationship between a target installation angle of the reflective film and a current installation angle of the reflective film; Collecting a real-time light intensity value of the photovoltaic power station, and correcting the time threshold based on the real-time light intensity value; Determining a plurality of light receiving angles of the reflective film within the unblocked time parameter comprises: Obtaining the local latitude and local time of the location of the photovoltaic power station, and calculating the solar altitude angle according to the local latitude and the local time; Calculating the light receiving angle of the reflective film according to the solar altitude angle and the current installation angle of the reflective film; The solar altitude angle is calculated according to the following formula: a=arcsin(sinφsinδ+cosφcosδcost); Among them, a is the solar altitude angle, δ is the solar declination angle, φ is the local latitude, and t is the local time; When calculating the light receiving angle of the photovoltaic power station according to the following formula: W = 180 - (a + b); Where W is the light receiving angle of the photovoltaic power station, and b is the installation angle of the current photovoltaic panel; When setting the adjustment parameters of the angle adjustment device according to the relationship between the target installation angle of the reflective film and the current installation angle of the reflective film, it includes: Calculating an angle difference Ab between a target installation angle A of the reflective film and a current installation angle b of the reflective film; Determine the rotation time of the motor in the angle adjustment device according to the angle difference Ab, Preset angle difference matrix B, set B (B1, B2, B3, B4), where B1 is the first preset angle difference, B2 is the second preset angle difference, B3 is the third preset angle difference, B4 is the fourth preset angle difference, and B1<B2<B3<B4; Preset the rotation time matrix D of the motor, set D (D1, D2, D3, D4, D5), where D1 is the first preset rotation time, D2 is the second preset rotation time, D3 is the third preset rotation time, D4 ​​is the fourth preset rotation time, D5 is the fifth preset rotation time, and D1 < D2 < D3 < D4 < D5; The rotation time of the motor is set according to the relationship between the angle difference Ab and each preset angle difference: When Ab<B1, the first preset rotation time D1 is selected as the rotation time of the motor; When B1≤Ab<B2, the second preset rotation time D2 is selected as the rotation time of the motor; When B2≤Ab<B3, the third preset rotation time D3 is selected as the rotation time of the motor; When B3≤Ab<B4, the fourth preset rotation time D4 is selected as the rotation time of the motor; When B4≤Ab, the fifth preset rotation time D5 is selected as the rotation time of the motor.

2. The photovoltaic power station reflective film installation and adjustment method according to claim 1, characterized in that: When the time threshold is corrected based on the real-time light intensity value, it includes: Obtaining the real-time illumination intensity E and the time threshold T; Preset the real-time illumination intensity matrix G, set G (G1, G2, G3, G4), where G1 is the first preset real-time illumination intensity, G2 is the second preset real-time illumination intensity, G3 is the third preset real-time illumination intensity, G4 is the fourth preset real-time illumination intensity, and G1<G2<G3<G4; A preset time threshold correction coefficient matrix h, set h (h1, h2, h3, h4, h5), wherein h1 is a first preset time threshold correction coefficient, h2 is a second preset time threshold correction coefficient, h3 is a third preset time threshold correction coefficient, h4 is a fourth preset time threshold correction coefficient, h5 is a fifth preset time threshold correction coefficient, and 0.8<h1<h2<h3<h4<h5<1.2; The time threshold T is modified according to the relationship between the real-time illumination intensity E and each preset real-time illumination intensity: When E<G1, the first preset time threshold correction coefficient h1 is selected to correct the time threshold T, and the corrected time threshold is T*h1; When G1≤E<G2, the second preset time threshold correction coefficient h2 is selected to correct the time threshold T, and the corrected time threshold is T*h2; When G2≤E<G3, the third preset time threshold correction coefficient h3 is selected to correct the time threshold T, and the corrected time threshold is T*h3; When G3≤E<G4, the fourth preset time threshold correction coefficient h4 is selected to correct the time threshold T, and the corrected time threshold is T*h4; When G4≤E, the fifth preset time threshold correction coefficient h5 is selected to correct the time threshold T, and the corrected time threshold is T*h5.

3. A photovoltaic power station reflective film installation and adjustment system, characterized in that: The system comprises: An acquisition module, used to acquire an unobstructed time parameter of the photovoltaic power station within a time threshold, and determine a plurality of light receiving angles of the reflective film within the unobstructed time parameter; A determination module, configured to determine an optimal light receiving angle of the reflective film based on a plurality of light receiving angles, and use the optimal light receiving angle as a target installation angle of the reflective film; a setting module, configured to set adjustment parameters of an angle adjustment device according to a relationship between a target installation angle of the reflective film and a current installation angle of the reflective film; A correction module, used for collecting the real-time light intensity value of the photovoltaic power station, and correcting the time threshold based on the real-time light intensity value; The acquisition module is used to acquire the local latitude and local time of the location of the photovoltaic power station, and calculate the solar altitude angle according to the local latitude and the local time; The acquisition module is used to calculate the light receiving angle of the reflective film according to the solar altitude angle and the current installation angle of the reflective film; The acquisition module is used to calculate the solar altitude angle according to the following formula: a=arcsin(sinφsinδ+cosφcosδcost); Among them, a is the solar altitude angle, δ is the solar declination angle, φ is the local latitude, and t is the local time; The acquisition module is used to calculate the light receiving angle of the photovoltaic power station according to the following formula: W = 180 - (a + b); Where W is the light receiving angle of the photovoltaic power station, and b is the installation angle of the current photovoltaic panel; The setting module is used to calculate the angle difference Ab between the target installation angle A of the reflective film and the current installation angle b of the reflective film; The setting module is used to determine the rotation time of the motor in the angle adjustment device according to the angle difference Ab, The setting module is used to preset the angle difference matrix B, set B (B1, B2, B3, B4), where B1 is the first preset angle difference, B2 is the second preset angle difference, B3 is the third preset angle difference, B4 is the fourth preset angle difference, and B1<B2<B3<B4; The setting module is used to preset the rotation time matrix D of the motor, and set D (D1, D2, D3, D4, D5), wherein D1 is the first preset rotation time, D2 is the second preset rotation time, D3 is the third preset rotation time, D4 ​​is the fourth preset rotation time, D5 is the fifth preset rotation time, and D1<D2<D3<D4<D5; The setting module is used to set the rotation time of the motor according to the relationship between the angle difference Ab and each preset angle difference: When Ab<B1, the first preset rotation time D1 is selected as the rotation time of the motor; When B1≤Ab<B2, the second preset rotation time D2 is selected as the rotation time of the motor; When B2≤Ab<B3, the third preset rotation time D3 is selected as the rotation time of the motor; When B3≤Ab<B4, the fourth preset rotation time D4 is selected as the rotation time of the motor; When B4≤Ab, the fifth preset rotation time D5 is selected as the rotation time of the motor.

4. The photovoltaic power station reflective film installation and adjustment system according to claim 3, characterized in that: The correction module is specifically used for: The correction module is used to obtain the real-time illumination intensity E and the time threshold T; The correction module is used to preset the real-time illumination intensity matrix G, and set G (G1, G2, G3, G4), wherein G1 is the first preset real-time illumination intensity, G2 is the second preset real-time illumination intensity, G3 is the third preset real-time illumination intensity, G4 is the fourth preset real-time illumination intensity, and G1<G2<G3<G4; The correction module is used to preset a time threshold correction coefficient matrix h, and set h (h1, h2, h3, h4, h5), wherein h1 is a first preset time threshold correction coefficient, h2 is a second preset time threshold correction coefficient, h3 is a third preset time threshold correction coefficient, h4 is a fourth preset time threshold correction coefficient, h5 is a fifth preset time threshold correction coefficient, and 0.8<h1<h2<h3<h4<h5<1.2; The correction module is used to correct the time threshold T according to the relationship between the real-time illumination intensity E and each preset real-time illumination intensity: When E<G1, the first preset time threshold correction coefficient h1 is selected to correct the time threshold T, and the corrected time threshold is T*h1; When G1≤E<G2, the second preset time threshold correction coefficient h2 is selected to correct the time threshold T, and the corrected time threshold is T*h2; When G2≤E<G3, the third preset time threshold correction coefficient h3 is selected to correct the time threshold T, and the corrected time threshold is T*h3; When G3≤E<G4, the fourth preset time threshold correction coefficient h4 is selected to correct the time threshold T, and the corrected time threshold is T*h4; When G4≤E, the fifth preset time threshold correction coefficient h5 is selected to correct the time threshold T, and the corrected time threshold is T*h5.

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