Curved solar panel, photovoltaic array and solar energy system

Abstract

Disclosed are a curved solar panel (11), a photovoltaic array (10) and a solar energy system (100a, 100b). The curved solar panel (11) comprises, successively connected in a first direction, crest parts (11p) and trough parts (11r). The curved solar panel (11) further comprises: a power generation region (11e) provided with a power generation layer (113); and a first non-power generation region (11a) and a second non-power generation region (11b), which are respectively located on two opposite sides of the power generation region (11e) in the first direction, the upper part of the first non-power generation region (11a) being used for connecting to a second non-power generation region (11b) of an adjacent curved surface solar panel (11). The width of the first non-power generation region (11a) in the first direction is defined as X1, the width of the second non-power generation region (11b) in the first direction is defined as X2, and the thickness of the curved solar panel (11) is defined as W, X1, X2 and W satisfying: X1≥X2+W.

Description

Curved solar panels, photovoltaic arrays and solar energy systems

[0001] Priority information

[0002] This application claims priority and benefits of patent application No. 202420143851.0 filed with the State Intellectual Property Office of China on January 19, 2024, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of photovoltaic technology, and more specifically, to a curved solar panel, a photovoltaic array, and a solar energy system. Background Art

[0004] In existing solar energy systems that use curved solar panels, when the curved solar panels are installed, the power generation area of ​​the curved solar panel located below is easily partially blocked, which reduces the power generation efficiency of the partially blocked curved solar panel, and further causes the overall power generation efficiency of the entire solar energy system to be reduced due to current limiting. Summary of the Invention

[0005] The embodiments of the present application provide a curved solar panel, a photovoltaic array, and a solar energy system to solve at least one of the above-mentioned technical problems.

[0006] In a first aspect, the present application provides a curved solar panel. The curved solar panel includes a crest portion and a trough portion connected in sequence along a first direction. The curved solar panel also includes a power generation area provided with a power generation layer and a first non-power generation area and a second non-power generation area. The first non-power generation area and the second non-power generation area are respectively located on opposite sides of the power generation area along the first direction, and the upper portion of the first non-power generation area is used to overlap with the second non-power generation area of ​​the adjacent curved solar panel. The width of the first non-power generation area along the first direction is defined as X1. The width of the second non-power generation area along the first direction is defined as X2. The thickness of the curved solar panel is defined as W; X1, X2 and W satisfy: X1≥X2+W.

[0007] When the curved solar panels of the first aspect of the present application are installed along a first direction, at the overlapped position, the width X2 of the second non-power-generating area of ​​the upper curved solar panel is smaller than the width X1 of the first non-power-generating area of ​​the lower curved solar panel. This helps ensure that, of two adjacent curved solar panels in the first direction, the upper curved solar panel does not obstruct the power-generating area of ​​the lower curved solar panel, thereby improving the overall power generation efficiency of the solar energy system using the curved solar panels.

[0008] In some embodiments, the first non-power generation area is located at the trough portion, and the second non-power generation area is located at the peak portion.

[0009] A second aspect of the present application provides a photovoltaic array. The photovoltaic array comprises a plurality of curved solar panels provided in the first aspect of the present application. Along a first direction, the upper portion of the first non-power generation area of ​​each curved solar panel overlaps the second non-power generation area of ​​an adjacent curved solar panel, forming a first overlap portion. The overlap width of the first overlap portion of any two adjacent curved solar panels along the first direction is defined as W1, where W1, X1, and X2 satisfy the following: W1 ≥ (X1 + X2) / 2.

[0010] The photovoltaic array of the second aspect of the present application has at least the same advantages as the curved solar panel of the first aspect. Furthermore, W1, X1, and X2 satisfy the following: W1 ≥ (X1 + X2) / 2, which helps ensure that the power generation layer at both ends of the curved solar panel in the first direction is not blocked.

[0011] In some embodiments, each curved solar panel further includes a third non-power generation area and a fourth non-power generation area. The third non-power generation area and the fourth non-power generation area are respectively located on opposite sides of the power generation area along the second direction, and the second direction is different from the first direction. The first non-power generation area, the third non-power generation area, the second non-power generation area and the fourth non-power generation area are sequentially connected and surround the power generation area. Along the second direction, the upper portion of the third non-power generation area of ​​each curved solar panel overlaps with the fourth non-power generation area of ​​an adjacent curved solar panel to form a second overlap portion. The overlap width of the second overlap portion of any two adjacent curved solar panels along the second direction is defined as H1. The width of the third non-power generation area along the second direction is defined as X3; H1, X3 and W satisfy: H1≤X3+W.

[0012] In some embodiments, a standard angle between the photovoltaic array and the horizontal plane is defined as θ; an actual angle between each curved solar panel and the horizontal plane is defined as θ1; θ1 and θ satisfy: |θ1-θ|≤1°.

[0013] In some embodiments, the photovoltaic array further includes a plurality of voltage and current adjustment units, each of which is connected in series with a corresponding curved solar panel.

[0014] In some embodiments, multiple curved solar panels facing the same orientation are connected in series, and multiple curved solar panels facing different orientations are connected in parallel.

[0015] In some embodiments, the photovoltaic array further includes a positive junction box and a negative junction box, the positive pole of each curved solar panel is electrically connected to the positive junction box, and the negative pole of each curved solar panel is electrically connected to the negative junction box.

[0016] A third aspect of the present application provides a solar energy system. The solar energy system includes an energy storage device and a photovoltaic array. The photovoltaic array is electrically connected to the energy storage device to provide electrical energy to the energy storage device; wherein the photovoltaic array is the photovoltaic array of the second aspect of the present application.

[0017] The solar energy system of the third aspect of the present application has at least the same advantages as the photovoltaic array of the second aspect of the present application.

[0018] In some embodiments, the solar energy system further includes a controller, one end of which is electrically connected to the photovoltaic array, and the other end of which is electrically connected to the energy storage device and the grid, respectively. The controller is used to control the photovoltaic array to provide electrical energy to the energy storage device and / or the grid.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] FIG1 is a schematic diagram of a solar energy system according to a first embodiment of the present application.

[0022] FIG2 is a schematic diagram of an installation surface of a curved solar panel in a solar energy system according to an embodiment of the present application.

[0023] FIG3 is a side view of a curved solar panel according to an embodiment of the present application.

[0024] FIG4 is a schematic diagram of curved solar panels overlapped in a first direction according to an embodiment of the present application.

[0025] FIG5 is a schematic diagram of an actual angle between a curved solar panel and a horizontal surface according to an embodiment of the present application.

[0026] FIG6 is a perspective view of a curved solar panel according to an embodiment of the present application.

[0027] FIG. 7 is a schematic diagram of curved solar panels overlapped in a second direction according to an embodiment of the present application.

[0028] FIG8 is a schematic diagram of an application scenario of a solar energy system according to the second embodiment of the present application.

[0029] Description of the main component symbols: Solar system 100a, 100b Photovoltaic array 10 First photovoltaic module 10a Second photovoltaic module 10b Curved solar panel 11 Front panel 111 Back panel 112 Power generation layer 113 First non-power generation area 11a Second non-power generation area 11b Third non-power generation area 11c Fourth non-power generation area 11d Power generation area 11e Light-receiving surface 11f Backlight surface 11g Trough 11r Peak 11p Voltage and current adjustment unit 12 Positive junction box 13 Negative junction box 14 Energy storage device 20 Controller 30 Power grid 200 First direction D1 Second direction D2 Third direction D3 Mounting surface S First mounting surface S1 Second mounting surface S2 Third mounting surfaceS3 Fourth mounting surface S4 Level surface HS Virtual surface VS Sunlight L DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0031] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. The embodiments of the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the embodiments of the present application provide examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0032] Because the backlight side of curved solar panels is uneven, it's difficult to ensure the overlap area of ​​each curved solar panel is consistent with its adjacent counterparts when installing them on a roof. This results in variations in the actual power generation area of ​​each curved solar panel. Consequently, as the sunlight's angle with the curved solar panel changes over time, the power generation of each curved solar panel can vary significantly, ultimately reducing the overall power generation efficiency of the entire solar system due to current limiting.

[0033] In the embodiments of this application, "current limiting" refers to controlling the flow of current through electrical means to protect components in a solar system, improve efficiency, and maintain the stability of the solar system. Specifically, in a solar system, if the power generation efficiency of a solar panel in a series connection decreases and the output current decreases, the overall output current of the entire solar system will also decrease to prevent other components in the solar system (such as the inverter and controller) from being damaged by excessive current.

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0035] As shown in FIG1 , a solar energy system 100a according to a first embodiment of the present application includes a photovoltaic array 10 and an energy storage device 20 electrically connected to the photovoltaic array 10. The photovoltaic array 10 is configured to provide electrical energy to the energy storage device 20. The energy storage device 20 is capable of storing the electrical energy generated by the photovoltaic array 10 during the day for use at night or other times when the photovoltaic array 10 is not generating electricity. The energy storage device 20 is, for example, a lithium-ion battery, but is not limited thereto.

[0036] Specifically, the photovoltaic array 10 includes a first photovoltaic module 10a, a second photovoltaic module 10b, a positive junction box 13, and a negative junction box 14. The first photovoltaic module 10a includes multiple curved solar panels 11 and multiple voltage and current adjustment units 12. In the first photovoltaic module 10a, the number of curved solar panels 11 and the number of voltage and current adjustment units 12 are the same. Each voltage and current adjustment unit 12 is connected in series with a corresponding curved solar panel 11, and the multiple voltage and current adjustment units 12 are connected in series with each other. In the first photovoltaic module 10a, the positive pole of each curved solar panel 11 and the positive pole of each voltage and current adjustment unit 12 are electrically connected to the positive junction box 13, and the negative pole of each curved solar panel 11 and the negative pole of each voltage and current adjustment unit 12 are electrically connected to the negative junction box 14.

[0037] The second photovoltaic assembly 10b has the same composition as the first photovoltaic assembly 10a. The second photovoltaic assembly 10b includes multiple curved solar panels 11 and multiple voltage and current adjustment units 12. In the second photovoltaic assembly 10b, the number of curved solar panels 11 and voltage and current adjustment units 12 is the same. Each voltage and current adjustment unit 12 is connected in series with a corresponding curved solar panel 11, and multiple voltage and current adjustment units 12 are connected in series with each other. In the second photovoltaic assembly 10b, the positive pole of each curved solar panel 11 and the positive pole of each voltage and current adjustment unit 12 are electrically connected to a positive junction box 13, and the negative pole of each curved solar panel 11 and the negative pole of each voltage and current adjustment unit 12 are electrically connected to a negative junction box 14.

[0038] In some embodiments, the voltage and current adjustment unit 12 includes a charge controller. The charge controller regulates the voltage and current of the curved solar panel 11 connected in parallel to it to prevent overcharging and over-discharging. Furthermore, at night or in low light conditions, the charge controller prevents current from the energy storage device 20 from flowing back into the curved solar panel 11. Furthermore, the charge controller can utilize maximum power point tracking technology to optimize the conversion of electrical energy from the curved solar panel 11 to the energy storage device 20.

[0039] The arrangement of the above-mentioned positive junction box 13 and negative junction box 14 allows the current (DC) input lines of multiple curved solar panels 11 in the photovoltaic array 10 to be brought together, and then the current is transmitted to the energy storage device 20 through a single line. In this way, the wiring can be simplified, the complexity of the wiring can be reduced, and the installation and maintenance of the solar energy system 100a can be simplified. In addition, fuses or circuit breakers can be set in the above-mentioned positive junction box 13 and negative junction box 14 to prevent overcurrent conditions; if a problem occurs in a certain circuit, the corresponding fuse will melt, thereby protecting the entire solar energy system 100a from damage. In addition, the positive junction box 13 and the negative junction box 14 also have waterproof and dustproof functions, which can protect the internal electrical components from the influence of harsh environmental conditions and increase the safety of the system.

[0040] In some embodiments, all curved solar panels 11 in the first photovoltaic assembly 10a face the same orientation, and all curved solar panels 11 in the second photovoltaic assembly 10b face the same orientation, but the curved solar panels 11 in the first photovoltaic assembly 10a and the second photovoltaic assembly 10b face different orientations. That is, the curved solar panels 11 in the same photovoltaic assembly are connected in series and face the same orientation, while the curved solar panels 11 in different photovoltaic assemblies are connected in parallel and face different orientations. These orientations can be any of east, west, south, north, southeast, northeast, southwest, and northwest.

[0041] As shown in Figure 2, a solar energy system 100a is used in a home power supply scenario. The mounting surface S on the roof of the building includes a first mounting surface S1 facing east, a second mounting surface S2 facing west, a third mounting surface S3 facing south, and a fourth mounting surface S4 facing north. The first photovoltaic assembly 10a and the second photovoltaic assembly 10b described above can be mounted on any two different mounting surfaces S. In the embodiment shown in Figure 1, the photovoltaic array 10 includes two groups of photovoltaic assemblies. In other embodiments, the number of photovoltaic assemblies in the photovoltaic array 10 is not limited to the above.

[0042] As shown in Figure 3, the curved solar panel 11 includes crests 11p and troughs 11r sequentially connected along a first direction D1. Specifically, the curved solar panel 11 includes a front panel 111, a back panel 112, and a power generation layer 113 sandwiched between the front and back panels 111 and 112. The back panel 112, power generation layer 113, and front panel 111 are stacked in sequence along a third direction D3. The first direction D1 is perpendicular to the third direction D3.

[0043] For ease of description, the first direction D1 is referred to as the left-right direction, and the third direction D3 is referred to as the up-down direction. A direction from left to right is defined as a direction where the negative direction of the first direction D1 points to the positive direction of the first direction D1. A direction from bottom to top is defined as a direction where the negative direction of the third direction D3 points to the positive direction of the third direction D3.

[0044] More specifically, the curved solar panel 11 includes a light-receiving surface 11f and a backlight surface 11g opposite to each other. The side where the light-receiving surface 11f is located is used to receive sunlight L. The front panel 111 is located on the side where the light-receiving surface 11f is located to protect the light-receiving surface 11f of the power generation layer 113. The front panel 111 is, for example, a light-transmitting curved glass, but is not limited thereto. The back panel 112 is located on the side where the backlight surface 11g is located to support and protect the side of the backlight surface 11g of the power generation layer 113. The back panel 112 is, for example, a flexible back panel or curved glass, but is not limited thereto. The power generation layer 113 includes a plurality of cells electrically connected to each other. The curved solar panel 11 also includes an adhesive film between the front panel 111 and the power generation layer 113 and an adhesive film between the back panel 112 and the power generation layer 113, but is not limited thereto.

[0045] The curved solar panel 11 includes a power generation area 11e and a non-power generation area. The power generation area 11e is provided with a power generation layer 113, while the non-power generation area is not provided with a power generation layer 113. Specifically, the non-power generation area includes a first non-power generation area 11a and a second non-power generation area 11b. Along the first direction D1, the first non-power generation area 11a and the second non-power generation area 11b are located on opposite sides of the power generation area 11e. When the curved solar panels 11 are installed, the upper portion of the first non-power generation area 11a of each curved solar panel 11 is used to overlap the second non-power generation area 11b of the adjacent curved solar panel 11 along the first direction D1.

[0046] Along the first direction D1, the width of the first non-power generation area 11a is X1. Along the first direction D1, the width of the second non-power generation area 11b is X2. The thickness of the curved solar panel 11 is W. Among them, X1, X2 and W satisfy: X1≥X2+W. In this way, as shown in Figure 4, when the curved solar panels 11 of the embodiment of the present application are installed in order from left to right, at the overlapping position, the width X2 of the second non-power generation area 11b of the curved solar panel 11 located above is smaller than the width X1 of the first non-power generation area 11a of the curved solar panel 11 located below, thereby ensuring that of the two adjacent curved solar panels 11 in the first direction D1, the curved solar panel 11 on the right will not block the power generation layer 113 of the curved solar panel 11 on the left and affect the overall power generation efficiency.

[0047] Furthermore, the upper portion of the first non-power generation area 11a of each curved solar panel 11 overlaps the second non-power generation area 11b of the adjacent curved solar panel 11 to form a first overlap portion. The overlap width of the first overlap portion of any two adjacent curved solar panels 11 along the first direction D1 is defined as W1. W1, X1, and X2 satisfy the following: W1 ≥ (X1 + X2) / 2. This helps ensure that when overlapping along the first direction D1, the power generation layer 113 at both ends of the curved solar panel 11 in the first direction D1 is not obstructed.

[0048] In the embodiment shown in Figures 3 and 4, the curved solar panel 11 includes two peaks 11p and two troughs 11r. Along the first direction D1, each peak 11p is alternately connected to a trough 11r. Along the first direction D1, one of the two ends of the curved solar panel 11 is a peak 11p, and the other is a trough 11r. The first non-power generation area 11a is located in the trough-shaped end of the curved solar panel 11, and the second non-power generation area 11b is located in the peak-shaped end of the curved solar panel 11. In other words, the first non-power generation area 11a is located in the trough 11r of the curved solar panel 11, and the second non-power generation area 11b is located in the peak 11p of the curved solar panel 11. In this way, two adjacent curved solar panels 11 interlock and overlap in the left-right direction, which helps improve the overall structural stability and prevents displacement or damage caused by environmental factors (such as wind and rain).

[0049] In some embodiments, to ensure that the actual power generation of different curved solar panels 11 is consistent, it is also necessary to ensure that the tilt angle of each curved solar panel 11 is consistent. Specifically, actual power generation P = voltage V × current I = irradiance HA × light-receiving area S × conversion efficiency K1 × system efficiency K. As shown in Figure 5, for the case where sunlight L is incident on the curved solar panel 11 perpendicular to the horizontal surface HS, the standard angle between the photovoltaic array 10 and the horizontal surface HS is θ, and the actual angle between the curved solar panel 11 and the horizontal surface HS is θ1. Then, the difference in light-receiving area between the curved solar panel 11 and the standard curved solar panel is |cosθ1-cosθ|×S. Therefore, the greater the difference between the actual angle between the curved solar panel 11 and the horizontal surface HS and the standard angle, the greater the difference in light-receiving area and the greater the difference in power generation.

[0050] In some embodiments, after each curved solar panel 11 is installed, a level meter is used to determine whether the difference between the actual angle between the curved solar panel 11 and the level surface HS and the standard angle satisfies |θ1-θ|≤1°, but the present invention is not limited thereto.

[0051] It should be noted that the aforementioned standard angle is the standard angle for the photovoltaic array 10 and is a constant value by design. Furthermore, the water level surface HS is a theoretical reference surface that represents the equipotential surface of the Earth's gravitational field. The gravitational potential energy at any two points on the water level surface HS is equal, meaning that water theoretically cannot flow on this surface.

[0052] In addition, the water level surface HS in Figure 5 is for illustration only. It is understandable that, since the Earth's gravity field is affected by the uneven distribution of the Earth's mass, the water level surface HS is not a completely flat surface.

[0053] In the embodiment shown in FIG5 , each crest portion 11p and each trough portion 11r extend along the second direction D2. The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other. The cross-section of each crest portion 11p and each trough portion 11r perpendicular to the second direction D2 is semicircular. The plane where the center of each semicircle of each crest portion 11p and each trough portion 11r lies constitutes a virtual surface VS parallel to the screen surface defined by the first direction D1 and the second direction D2. The actual angle between the curved solar panel 11 and the horizontal surface HS is the angle between the virtual surface VS and the horizontal surface HS.

[0054] As shown in Figure 6, the curved solar panel 11 also includes a third non-power generation area 11c and a fourth non-power generation area 11d. The third non-power generation area 11c and the fourth non-power generation area 11d are located on opposite sides of the power generation area 11e along the second direction D2. The first non-power generation area 11a, the third non-power generation area 11c, the second non-power generation area 11b, and the fourth non-power generation area 11d are sequentially connected and surround the power generation area 11e. The upper portion of the third non-power generation area 11c of the curved solar panel 11 is used to overlap with the fourth non-power generation area 11d of an adjacent curved solar panel 11 in the second direction D2. It should be noted that for ease of description, the backsheet 112 is omitted in Figure 6.

[0055] As shown in FIG7 , when multiple curved solar panels 11 are installed on the installation surface S of the roof, in the first direction D1, each row of curved solar panels 11 is installed in order from left to right; in the second direction D2, multiple rows of curved solar panels 11 are installed row by row in order from bottom to top, that is, after installing the lower row of curved solar panels 11, the upper row of curved solar panels 11 is installed.

[0056] Specifically, the third non-power generation area 11c of each curved solar panel 11 overlaps the fourth non-power generation area 11d of the adjacent curved solar panel 11 above to form a second overlap portion. The overlap width of the second overlap portion of any two adjacent curved solar panels 11 along the second direction D2 is defined as H1. The width of the third non-power generation area 11c along the second direction D2 is X3. H1, X3, and the thickness W of the curved solar panel 11 satisfy: H1 ≤ X3 + W. This helps ensure that when two adjacent curved solar panels 11 overlap in the second direction D2, the curved solar panel 11 located above does not block or shade the power generation layer 113 of the curved solar panel 11 located below, thereby affecting the power generation efficiency of the entire solar system 100a. In addition, it also helps avoid the situation where a curved solar panel 11 is locally overheated due to the hot spot effect, causing the adhesive film to dissolve and delaminate.

[0057] The following describes in detail the installation principles of the solar energy system 100a according to the embodiment of the present application.

[0058] First, on the same installation surface S, all curved solar panels 11 are installed in series, and all curved solar panels 11 on different installation surfaces S are installed in parallel.

[0059] Second, each row of curved solar panels 11 is installed in a left-to-right order in the first direction D1 ; and multiple rows of curved solar panels 11 are installed in a bottom-to-top order in the second direction D2 .

[0060] Third, when installed from left to right, along the first direction D1, the overlap width W1 of any two adjacent curved solar panels 11 at the overlap, the width X1 of the first non-power generation area 11a, and the width X2 of the second non-power generation area 11b must satisfy: W1 ≥ (X1 + X2) / 2, to ensure that when overlapping left and right, they will not overlap the power generation layer 113, causing obstruction to the solar cells and affecting the power generation. In addition, due to the curved shape of the curved solar panel, it is difficult to ensure that the width of the first non-power generation area 11a and the width of the second non-power generation area 11b are equal during design. When following the installation principle from left to right, if the width of the first non-power generation area 11a is ≤ the width of the second non-power generation area 11b, the power generation layer 113 will also be obstructed. Therefore, it is necessary to further satisfy X1 ≥ X2 + W to ensure that the solar cells of the curved solar panel 11 on the left are not obstructed.

[0061] Fourth, after installing a curved solar panel 11, use a level to determine whether the difference between the actual angle between the curved solar panel 11 and the level surface HS and the standard angle satisfies |θ1-θ| ≤ 1°. If not, adjust the angle of the curved solar panel 11 until it meets the requirement.

[0062] Fifth, along the second direction D2, the overlapping width H1 of the two adjacent curved solar panels 11 at the overlapping point, the width X3 of the third non-power generation area 11c and the thickness W of the curved solar panel 11 satisfy: H1≤X3+W; otherwise, the position needs to be adjusted to ensure that the upper and lower overlaps will not block or shadow the cells of the curved solar panel 11 below, affecting the power generation power. At the same time, it is also beneficial to avoid the situation where a curved solar panel 11 is locally overheated due to the hot spot effect, resulting in the dissolution and stratification of the film.

[0063] Sixth, after installing the curved solar panel 11, connect the circuit as required as shown in FIG. 1. When connecting the circuit, the power generation area 11e of the curved solar panel 11 needs to be shielded to prevent the risk of electric shock.

[0064] In summary, the solar energy system of the present application, by designing the size of the non-power generation area of ​​the curved solar panels and the thickness of the curved solar panels, helps address the issue of partial shading when overlapping curved solar panels, which can affect the overall power generation efficiency of the solar energy system. In some embodiments, by implementing the above-mentioned installation principles and combining them with a voltage and current adjustment unit, the efficiency of rooftop curved solar panels can be effectively increased by approximately 30%.

[0065] As shown in FIG8 , the solar energy system 100b of the second embodiment of the present application differs from the solar energy system 100a of the first embodiment in that the solar energy system 100b further includes a controller 30, one end of which is electrically connected to the photovoltaic array 10, and the other end of which is electrically connected to the energy storage device 20 and the power grid 200. The controller 30 is used to control the photovoltaic array 10 to provide power to the energy storage device 20 and / or the power grid 200.

[0066] It is understandable that the installation principles of the solar energy system 100a described above are also applicable to the solar energy system 100b.

[0067] Specifically, the solar energy system 100a is an off-grid system that is capable of self-generation and automation. That is, the solar energy system 100a can operate independently without being connected to the public power grid 200. Furthermore, the solar energy system 100a can automatically manage the power generation and storage process without the need for human intervention. For example, when the electricity generated by the curved solar panels 11 in the photovoltaic array 10 exceeds the current consumption of the household, the solar energy system 100a will automatically store the excess electricity in the energy storage device 20. When the electricity generated by the curved solar panels 11 in the photovoltaic array 10 is insufficient to meet demand, the solar energy system 100a will automatically draw electricity from the energy storage device 20 for household use.

[0068] Furthermore, solar system 100b is a grid-connected system. Besides being able to generate electricity automatically, solar system 100b can also share surplus electricity with the grid. In other words, in addition to being self-sufficient for household loads, solar system 100b can also transmit excess electricity to the public grid 200, potentially contributing to the grid 200.

[0069] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that specific features, structures, materials, or characteristics described in conjunction with an embodiment or example are included in at least one embodiment or example of the present application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0070] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A curved solar panel, comprising a peak portion and a valley portion sequentially connected in a first direction, wherein, The curved solar panel further includes: a power generation area provided with a power generation layer; and a first non-power generation area and a second non-power generation area, which are respectively located on opposite sides of the power generation area along the first direction, and the upper part of the first non-power generation area is used for overlapping with the second non-power generation area of the adjacent curved solar panel; Define the width of the first non-power generation area along the first direction as X1; Define the width of the second non-power generation area along the first direction as X2; Define the thickness of the curved solar panel as W; The X1, the X2, and the W satisfy: X1≥X2 + W.

2. The curved solar panel according to claim 1, wherein, The first non-power generation area is located at the trough part, and the second non-power generation area is located at the crest part.

3. A photovoltaic array, wherein, Including a plurality of curved solar panels according to claim 1 or 2; Along the first direction, the upper part of the first non-power generation area of each curved solar panel overlaps with the second non-power generation area of an adjacent curved solar panel to form a first overlapping part; Define the overlapping width of the first overlapping part of any two adjacent curved solar panels along the first direction as W1, and the W1, the X1, and the X2 satisfy: W1≥(X1 + X2) / 2.

4. The photovoltaic array according to claim 3, wherein, Each curved solar panel further includes a third non-power generation area and a fourth non-power generation area, and the third non-power generation area and the fourth non-power generation area are respectively located on opposite sides of the power generation area along the second direction, the second direction is different from the first direction, and the first non-power generation area, the third non-power generation area, the second non-power generation area, and the fourth non-power generation area are sequentially connected and surround the power generation area; Along the second direction, the upper part of the third non-power generation area of each curved solar panel overlaps with the fourth non-power generation area of an adjacent curved solar panel to form a second overlapping part; Define the overlapping width of the second overlapping part of any two adjacent curved solar panels along the second direction as H1; Define the width of the third non-power generation area along the second direction as X3; The H1, the X3, and the W satisfy: H1≤X3 + W.

5. The photovoltaic array according to claim 4, wherein Define the standard angle between the photovoltaic array and the horizontal plane as θ; Define the actual angle between each curved solar panel and the horizontal plane as θ1; The θ1 and the θ satisfy: |θ1 - θ|≤1°.

6. The photovoltaic array according to any one of claims 3 to 5, wherein The photovoltaic array further includes a plurality of voltage and current adjustment units, and each voltage and current adjustment unit is connected in series with a corresponding curved solar panel.

7. The photovoltaic array according to claim 6, wherein, A plurality of curved solar panels facing the same azimuth are connected in series, and a plurality of curved solar panels facing different azimuths are connected in parallel.

8. The photovoltaic array according to claim 6, wherein, The photovoltaic array further includes a positive busbar box and a negative busbar box, the positive electrode of each curved solar panel is electrically connected to the positive busbar box, and the negative electrode of each curved solar panel is electrically connected to the negative busbar box.

9. A solar energy system, wherein, Including: a energy storage device; and a photovoltaic array, electrically connected to the energy storage device to supply electric energy to the energy storage device; wherein, the photovoltaic array is the photovoltaic array according to any one of claims 3 to 8.

10. The solar energy system according to claim 9, wherein, The solar energy system further includes a controller. One end of the controller is electrically connected to the photovoltaic array, and the other end is respectively electrically connected to the energy storage device and the power grid. The controller is used to control the photovoltaic array to supply electric energy to the energy storage device and / or the power grid.

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