Photovoltaic system with double-sided power generation

Abstract

The utility model provides a photovoltaic system with double-sided power generation, which relates to the technical field of photovoltaic trackers and comprises a photovoltaic assembly, a photovoltaic tracking support, a reflector adjusting mechanism and a sensor assembly, the reflector adjusting mechanism comprises a reflector, a reflector spindle and a first rotation driving assembly, the reflector spindle is connected with the first rotation driving assembly, and the first rotation driving assembly is connected with the photovoltaic tracking support. The reflecting plate is connected with the reflecting plate main shaft, and the sensor assembly is electrically connected with the first rotation driving assembly. By arranging the reflector, light can be reflected to the back face of the photovoltaic module, so that double-face power generation of the photovoltaic module is achieved, the angle of the reflector can be adjusted by rotating the driving module, improvement of the light reflection efficiency is assisted, and the power generation efficiency of the photovoltaic module is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic tracker technical field especially a kind of photovoltaic system of double-sided power generation. BACKGROUND

[0002] The photovoltaic tracking device currently commonly used generates electricity by tracking sunlight, and the following problems are generally present. Since only the energy of sunlight received by the sun-facing side of the photovoltaic module is utilized for power generation, the photovoltaic module can only function on one side, and the back of the photovoltaic module does not function for power generation. However, many photovoltaic power stations are equipped with double-sided power generation modules, and there is a large difference between the designed power generation capacity and the actual power generation capacity. In view of the above defects, the present application is proposed. SUMMARY

[0003] The utility model discloses a kind of photovoltaic systems of double-sided power generation, solve the problem that photovoltaic module only utilizes front side to generate electricity at present stage, back is difficult to utilize fully, leading to the problem that power generation efficiency is difficult to further improve.

[0004] To solve the above problems, the utility model provides a kind of photovoltaic system of double-sided power generation, including photovoltaic module, photovoltaic tracking support, light-reflecting plate adjusting mechanism and sensor assembly, the photovoltaic tracking support includes photovoltaic main shaft and rotating drive component two, the rotating drive component two is connected with photovoltaic main shaft, the photovoltaic module is connected with photovoltaic main shaft, rotating drive component two drives photovoltaic main shaft to rotate according to control system instruction, realizes photovoltaic tracking function, light-reflecting plate adjusting mechanism is installed at the position below photovoltaic module, the light-reflecting plate adjusting mechanism includes light-reflecting plate, light-reflecting plate main shaft and rotating drive component one, the rotating drive component one is installed in the photovoltaic tracking support, the light-reflecting plate main shaft is connected with rotating drive component one, the light-reflecting plate is connected with light-reflecting plate main shaft, the light-reflecting plate is used to reflect light to the back of photovoltaic module, the sensor assembly is used to detect the light intensity that light-reflecting plate reflects to the back of photovoltaic module, the sensor assembly is electrically connected with rotating drive component one, rotating drive component one drives light-reflecting plate main shaft to rotate, makes light-reflecting plate adjustment angle, when sensor assembly detects that light intensity reaches set value, rotating drive component one stops.

[0005] According to an embodiment of the utility model, the sensor assembly is installed on the photovoltaic module and at a side end surface position of the photovoltaic module facing the light-reflecting plate.

[0006] According to an embodiment of the utility model, a plurality of sensor assemblies are provided on one photovoltaic module and are used to detect light conditions at different positions.

[0007] According to an embodiment of the utility model, the sensor assemblies are respectively arranged at two side edge positions of the end surface of the photovoltaic module.

[0008] According to an embodiment of the present application, the sensor assembly comprises a photosensitive sensor, and can further comprise other types of sensors capable of detecting light.

[0009] According to an embodiment of the present application, the light-reflecting plate main shaft is connected with the light-reflecting bearing assembly, and the light-reflecting bearing assembly can realize light reflection of the outer surface through material, coating, increase of light-reflecting structure, and the like, thereby further improving the light-reflecting efficiency.

[0010] According to an embodiment of the present application, the photovoltaic tracking support comprises a support structure and a photovoltaic panel mounting rack, and the support structure is used for supporting the photovoltaic panel mounting rack, the photovoltaic tracking support and the light-reflecting plate adjusting mechanism in the photovoltaic assembly.

[0011] According to an embodiment of the present application, the support structure comprises a column and a column base, and the column is installed on the column base through a column bottom plate, and the rotary drive assembly is installed on at least one of the column and the column base.

[0012] According to an embodiment of the present application, the light-reflecting plate main shaft is connected on the column base.

[0013] According to an embodiment of the present application, the photovoltaic assembly and the photovoltaic main shaft are connected through a purlin, and a pressing block is arranged to press the photovoltaic assembly.

[0014] The present application has the beneficial effect that the light-reflecting plate can reflect light to the back of the photovoltaic assembly, thereby realizing double-sided power generation of the photovoltaic assembly, and the angle of the light-reflecting plate can be adjusted through the rotary drive assembly, thereby assisting in improving the light-reflecting efficiency and further improving the power generation efficiency of the photovoltaic assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in combination with the drawings and embodiments.

[0016] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a double-sided power generation photovoltaic system;

[0017] Figure 2 FIG. 4 is a schematic diagram of the structure of a connection between a photovoltaic assembly and a photovoltaic main shaft;

[0018] Figure 3 FIG. 5 is a side view of the overall structure of a double-sided power generation photovoltaic system. DETAILED DESCRIPTION

[0019] The following description is merely illustrative in nature and is in no way intended to limit the scope of the application as defined by the appended claims. Furthermore, there is no intention that the examples represent an exhaustive list of possibilities. The basic principles of the application defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other aspects without departing from the spirit and scope of the application.

[0020] Embodiment 1:

[0021] A double-sided power generation photovoltaic system, such as Figure 1 、 Figure 3 , comprising a photovoltaic module 1, a photovoltaic tracking support, a reflector adjusting mechanism, a sensor assembly 4 and a support structure.

[0022] The support structure comprises a column 6 and a column base 3, the column 6 is installed on the column base 3 through a column bottom plate, the photovoltaic tracking support comprises a photovoltaic main shaft 5 and a rotating drive assembly two 9, the rotating drive assembly two 9 is connected with the photovoltaic main shaft 5, the photovoltaic module 1 is connected with the photovoltaic main shaft 5, such as Figure 2 , the photovoltaic module 1 and the photovoltaic main shaft 5 are connected through purlin 11, and a pressing block 12 is arranged to press the photovoltaic module 1, the pressing block 12 can be installed on the purlin 11, the photovoltaic main shaft 5 is installed on the column 6 through a bearing, the rotating drive assembly two 9 drives the photovoltaic main shaft 5 to rotate according to the instruction of the control system, and the photovoltaic tracking function is realized.

[0023] The reflector adjusting mechanism is installed at a position below the photovoltaic module 1, the reflector adjusting mechanism comprises a reflector 2, a reflector main shaft 8 and a rotating drive assembly one 7, the reflector main shaft 8 and the rotating drive assembly one 7 are connected on the column base 3, the reflector main shaft 8 is connected with the rotating drive assembly one 7, the reflector 2 is connected with the reflector main shaft 8, the reflector 2 is used for reflecting light to the back of the photovoltaic module 1, the sensor assembly 4 is used for detecting the light intensity reflected by the reflector 2 to the back of the photovoltaic module 1, the sensor assembly 4 is electrically connected with the rotating drive assembly one 7, the rotating drive assembly one 7 drives the reflector main shaft 8 to rotate, so that the reflector 2 adjusts the angle, when the sensor assembly 4 detects that the light intensity reaches a set value, the rotating drive assembly one 7 stops.

[0024] The rotating drive assembly two generally comprises a motor and a transmission assembly.

[0025] In this embodiment, the sensor assembly 4 comprises a photosensitive sensor, which is installed at a side end surface position of the photovoltaic module 1 facing the reflector 2, and a plurality of sensor assemblies 4 are arranged on one photovoltaic module 1, which are respectively used for detecting the light conditions at different positions, such as being respectively arranged at the two side edge positions of the end surface of the photovoltaic module 1.

[0026] Embodiment 2:

[0027] On the basis of embodiment 1, the light reflection plate main shaft 8 is connected with the light reflection bearing assembly 10, the light reflection bearing assembly 10 can realize the light reflection of the outer surface through material, coating, increase light reflection structure and the like, and further improve the light reflection efficiency.

[0028] Embodiment 3:

[0029] On the basis of any of the above embodiments, the light reflection plate adjusting mechanism is installed on the column base 3 and is height-adjustable, and can be realized through setting a lifting assembly.

[0030] It should be understood by those skilled in the art that the embodiments of the utility model shown in the above description and the drawings are only as examples and do not limit the utility model. The purpose of the utility model has been completely and effectively realized. The function and structural principle of the utility model have been shown and explained in the embodiments, and the implementation of the utility model can have any deformation and modification without departing from the principle.

Claims

1. A bifacial photovoltaic system for generating electricity on both sides, characterized by: The application relates to a photovoltaic tracking support device, which comprises a photovoltaic component (1), a photovoltaic tracking support, a reflector adjusting mechanism and a sensor component (4), the photovoltaic component (1) is connected with the photovoltaic tracking support, the reflector adjusting mechanism comprises a reflector (2), a reflector main shaft (8) and a rotating drive component I (7), the reflector main shaft (8) is connected with the rotating drive component I (7), the reflector (2) is connected with the reflector main shaft (8), the reflector (2) is used for reflecting light to the back of the photovoltaic component (1), the sensor component (4) is used for detecting the light intensity reflected by the reflector (2) to the back of the photovoltaic component (1), and the sensor component (4) is electrically connected with the rotating drive component I (7).

2. The bifacial power generating photovoltaic system of claim 1, wherein: The sensor component (4) is arranged on the photovoltaic component (1) and at the side end surface position of the photovoltaic component (1) facing the reflector (2).

3. The bifacial power generating photovoltaic system of claim 2, wherein: A plurality of the sensor components (4) are arranged on one photovoltaic component (1).

4. The bifacial power generating photovoltaic system of claim 3, wherein: The sensor components (4) are respectively arranged at the two side edge positions of the end surface of the photovoltaic component (1).

5. The bifacial photovoltaic system of any of claims 1-4, wherein: The sensor component (4) comprises a photosensitive sensor.

6. The bifacial photovoltaic system of any of claims 1-4, wherein: The reflector main shaft (8) is connected with a reflector bearing component (10).

7. The bifacial photovoltaic system of any of claims 1-4, wherein: The photovoltaic tracking support comprises a support structure and a photovoltaic plate mounting rack, the support structure is used for supporting the photovoltaic plate mounting rack and the reflector adjusting mechanism.

8. The bifacial power generating photovoltaic system of claim 7, wherein: The support structure comprises a stand column (6) and a stand column base (3), and the rotating drive component I (7) is arranged on at least one of the stand column (6) and the stand column base (3).

9. The bifacial power generating photovoltaic system of claim 8, wherein: The reflector main shaft (8) is connected on the stand column base (3).

10. The bifacial power generating photovoltaic system of claim 8 or 9, wherein: The photovoltaic tracking support comprises a photovoltaic main shaft (5) and a rotating drive component II (9), the rotating drive component II (9) is connected with the photovoltaic main shaft (5), the photovoltaic component (1) is connected with the photovoltaic main shaft (5), the photovoltaic component (1) and the photovoltaic main shaft (5) are connected through a purlin (11), and a pressing block (12) is arranged to press the photovoltaic component (1).

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