Autonomous light following device and method for tower drum

Abstract

The invention discloses an autonomous light following device and method for a tower drum. The light following device comprises a photovoltaic panel assembly; the sunlight chasing assembly is installed on the tower drum, and the sunlight chasing assembly is connected with the photovoltaic panel assembly and used for driving the photovoltaic panel assembly to rotate around the tower drum; and the angle adjusting assembly is used for adjusting the included angle between the photovoltaic panel assembly and the ground. According to the autonomous light tracking device and method for the tower drum, the photovoltaic device is installed on the tower drum, by means of independence of the tower, the problems of mutual interference, light shading and the like between autonomous light tracking photovoltaic panels on the tower are solved, the angle of the photovoltaic panel assembly can be adjusted at regular time on the tower drum through cooperation of a photoelectric sensor, an original point shifting piece and a controller, and the photovoltaic panel assembly can be adjusted at regular time. And meanwhile, the controller is used for controlling the sunlight tracking assembly to drive the photovoltaic panel assembly to track sunlight, so that the full-year autonomous light tracking of the light tracking device on the tower drum is realized, the power generation efficiency is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The invention relates to an autonomous light-chasing device and method for a tower, and belongs to the technical field of photovoltaic power generation. Background Art

[0002] Solar energy has huge application potential and market space. Therefore, promoting solar energy and other clean energy on a large scale will be the future direction of energy development for mankind and a great project that will benefit future generations.

[0003] Today's photovoltaic power generation is mainly installed on roofs, ground, mountains, water surfaces, etc., and most of them are installed on "surfaces".

[0004] In many cases, solar panels (heat collecting panels) are installed in a fixed manner, and some can only be deflected in a fixed direction, making it impossible to always face the direction of sunlight, thereby reducing the utilization rate of solar energy.

[0005] At present, the solar automatic light-chasing device mainly includes a control unit, a solar cell panel, and a mechanical driving device. Among them, the control unit includes a photosensitive sensor circuit and a hysteresis voltage comparator, and collects solar angle information through the photosensitive sensor circuit and the hysteresis voltage comparator; by receiving the solar angle information and controlling the driving device to drive the solar cell panel to rotate and absorb sunlight, and charging the battery pack through the solar cell panel, the utilization rate of solar energy and the sun-chasing state of the solar cell panel are effectively improved.

[0006] Since traditional photovoltaic panels are installed on a "surface", the photovoltaic panels will interfere with each other and block each other when the light tracking device rotates. Although the "surface-based" installation method increases the power generation of a single photovoltaic panel, the power generation of photovoltaic panels on the entire piece of land has not been significantly improved; It can be seen that in order to solve the above technical problems, an autonomous light-chasing device and method for a tower is urgently needed. Summary of the invention

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an autonomous light-chasing device and method for a tower, in which a photovoltaic device is installed on the tower. By utilizing the independence of the tower, there will be no problems such as mutual interference and shading between the autonomous light-chasing photovoltaic panels on the tower. Through the cooperation of photoelectric sensors, origin paddles and controllers on the tower, the angle of the photovoltaic panel assembly can be adjusted at a timely manner to achieve self-calibration of the light-chasing device to chase the sun's altitude angle. At the same time, the controller controls the sunlight-chasing assembly to drive the photovoltaic panel assembly to chase sunlight, thereby achieving autonomous light-chasing of the light-chasing device on the tower throughout the year, thereby improving power generation efficiency and reducing manufacturing costs.

[0008] In order to achieve the above purpose / solve the above technical problems, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides an autonomous light-chasing device for a tower, comprising: Photovoltaic panel assembly; A sun-chasing assembly is installed on the tower, and the sun-chasing assembly is connected to the photovoltaic panel assembly to drive the photovoltaic panel assembly to rotate around the tower; An angle adjustment component is used to adjust the angle between the photovoltaic panel assembly and the ground. The angle adjustment component includes a connecting end and a telescopic end. One end of the connecting end is slidably connected to the tower, and can rotate along the circumference of the tower with the photovoltaic panel assembly driven by the sun-tracking assembly. The other end of the connecting end is hinged to the telescopic end. One end of the telescopic end is connected to the connecting end, and the other end of the telescopic end is hinged to the photovoltaic panel assembly. Photoelectric sensor, fixed on the tower, and connected to the controller through signal; An origin pick, the origin pick being installed on a side of the sun-tracking component facing the photoelectric sensor; The controller is used to control the sun-chasing component to drive the photovoltaic panel component to rotate around the tower. When the origin pick passes through the photoelectric sensor, the controller controls the angle adjustment component to calibrate the angle of the photovoltaic panel component.

[0009] Furthermore, it also includes a first annular slide rail and a second annular slide rail, which are fixed on the tower along the tower height direction, the sun-chasing component is rotatably set on the tower through the first annular slide rail, and the angle adjustment component is rotatably set on the tower through the second annular slide rail.

[0010] Furthermore, the sun-tracking assembly includes a first slider, a bearing seat and a driving end, wherein: The first slider is slidably mounted on the first annular slide rail, the bearing seat is fixed on the first slider and connected to the photovoltaic panel assembly, and the driving end is used to drive the first slider to move on the first annular slide rail to drive the photovoltaic panel assembly to rotate.

[0011] Furthermore, the connecting end includes a second slider, and the telescopic end includes an electric push rod, wherein: The second sliding block is installed on the second annular sliding rail, and the two ends of the electric push rod are respectively connected to the sliding block and the photovoltaic panel assembly through pins.

[0012] Furthermore, the driving end includes a driving member arranged on the outer periphery of the first annular slide rail, the output shaft of the driving member is provided with a driving gear, the outer periphery of the tower is provided with an annular rack meshing with the driving gear, and the annular rack is fixed to the first sliding block.

[0013] Furthermore, the driving member includes a planetary reducer and a servo motor, wherein: The planetary reducer and the servo motor are fixed on the tower, the servo motor is connected to the planetary reducer, and the planetary reducer is connected to the driving gear.

[0014] Furthermore, it also includes a connection reinforcement member, which is used to connect the bearing seat and the photovoltaic panel assembly.

[0015] Furthermore, the photovoltaic panel assembly includes a plurality of photovoltaic panels, and the plurality of photovoltaic panels are arranged in a U shape outside the tower.

[0016] Furthermore, it also includes a left limit paddle and a right limit paddle, wherein, The left limit paddle, the origin paddle and the right limit paddle are arranged in sequence and equidistantly along the circumferential direction of the annular rack on one side of the annular rack facing the first annular slide rail; The photoelectric sensor is installed on the side of the first annular slide rail facing the annular rack and is connected to the controller signal.

[0017] In a second aspect, the present invention provides a light chasing method, which is used in the tower-type autonomous light chasing device according to the first aspect, comprising: Determine the target adjustment position of the current photovoltaic panel assembly, and adjust the photovoltaic panel assembly to the target adjustment position through the angle adjustment assembly; Start the sun-chasing assembly to drive the photovoltaic panel assembly to rotate around the tower. During the rotation of the photovoltaic panel assembly, when the origin pick passes through the photoelectric sensor, the controller controls the angle adjustment assembly to calibrate the angle of the photovoltaic panel assembly. Whenever the photovoltaic panel assembly rotates around the tower for one solar rotation cycle and when the origin pick passes through the photoelectric sensor, the target adjustment position of the photovoltaic panel assembly is re-determined, and the photovoltaic panel assembly is adjusted to the new target adjustment position through the angle adjustment assembly; The method for determining the target adjustment position of a photovoltaic panel assembly includes: repeatedly adjusting the photovoltaic panel assembly through an angle adjustment assembly, detecting the power generation of the photovoltaic panel assembly during the adjustment process, and when the maximum power generation is detected, recording the current position and using this position as the target adjustment position; if the power generation is identified to be lower than a preset threshold, it is determined to be cloudy, and the angle of the photovoltaic panel assembly is recalibrated the next day to obtain a new target adjustment position; if the difference between the original angle and the angle of the photovoltaic panel assembly at the new target adjustment position is greater than 2°, it is determined to be momentary obstruction by clouds, and the angle of the photovoltaic panel assembly is recalibrated the next day.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The autonomous light-chasing device for a tower provided by the present invention installs a photovoltaic device on the tower. By utilizing the independence of the tower, there will be no problems such as mutual interference and shading between the autonomous light-chasing photovoltaic panels on the tower. The photoelectric sensor, the origin paddle and the controller on the tower can be used to adjust the angle of the photovoltaic panel assembly at a timely manner, so as to realize the self-calibration of the light-chasing device to chase the sun's altitude angle. At the same time, the controller controls the sun-chasing assembly to drive the photovoltaic panel assembly to chase the sun, so as to realize the autonomous light-chasing of the light-chasing device on the tower throughout the year, thereby improving the power generation efficiency and reducing the manufacturing cost. The tower autonomous light-chasing device provided by the present invention can prevent the control system parameters from being incorrect or the sunlight-chasing component from exceeding the preset stroke in the manual adjustment mode by arranging a left limit paddle and a right limit paddle on the annular rack, thereby ensuring the working stability of the entire device; The light-chasing method provided by the present invention is adapted to the above-mentioned autonomous light-chasing device for the tower. When every solar rotation cycle and the origin pick passes through the photoelectric sensor, the photovoltaic panel assembly is adjusted through the angle adjustment assembly while the power generation power of the photovoltaic panel is detected. The optimal adjustment position of the photovoltaic panel assembly is determined by detecting the maximum power generation power of the photovoltaic panel, thereby realizing automatic calibration of the angle of the photovoltaic panel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an autonomous light-chasing device for a tower provided in the first embodiment; Figure 2 yes Figure 1 The schematic diagram of the structure side view of the autonomous light chasing device for the tower shown; Figure 3 yes Figure 1 The schematic diagram of the structure of the tower autonomous light chasing device is shown in the rear view; Figure 4 yes Figure 2 An enlarged schematic diagram of the structure at location I in the autonomous light-chasing device for the tower shown; Figure 5 yes Figure 2 An enlarged schematic diagram of the structure at position II of the autonomous light-chasing device for the tower shown; Figure 6 yes Figure 3 An enlarged schematic diagram of the structure at point A in the autonomous light-chasing device for the tower shown; Figure 7 yes Figure 1 The schematic diagram of the structure of the autonomous light-chasing device for the tower shown is a top view; Figure 8 yes Figure 7 An enlarged schematic diagram of the structure at location III in the autonomous light-chasing device for the tower shown; Fig. 9 It is an enlarged schematic diagram of the structure of the driving gear.

[0020] In the figure: 1. Photovoltaic panel assembly; 2. Sun tracking assembly; 201. First slider; 202. Bearing seat; 203. Drive gear; 204. Ring rack; 205. Planetary reducer; 206. Servo motor; 207. Connecting reinforcement; 208. Left limit paddle; 209. Right limit paddle; 3. Angle adjustment assembly; 301. Second slider; 302. Electric push rod; 303. Top pin; 304. Bottom pin; 305. Push rod connector; 4. Photoelectric sensor; 5. Origin paddle; 6. Tower; 7. First annular slide rail; 8. Second annular slide rail. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, 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 the present invention can be understood by specific circumstances. Example

[0024] like Figure 1~Figure 3 and Fig. 9 As shown, this embodiment provides an autonomous light tracking device for a tower, comprising: Photovoltaic panel assembly 1; The sun-chasing assembly 2 is installed on the tower 6. The sun-chasing assembly 2 is connected to the photovoltaic panel assembly 1 and is used to drive the photovoltaic panel assembly 1 to rotate around the tower 6. An angle adjustment component 3 is used to adjust the angle between the photovoltaic panel assembly 1 and the ground. The angle adjustment component 3 includes a connecting end and a telescopic end. One end of the connecting end is slidably connected to the tower 6, and can rotate along the circumference of the tower 6 with the photovoltaic panel assembly 1 driven by the sun-tracking component 2. The other end of the connecting end is hinged to the telescopic end. One end of the telescopic end is connected to the connecting end, and the other end of the telescopic end is hinged to the photovoltaic panel assembly 1. The photoelectric sensor 4 is fixed on the tower 6 and is connected to the controller through a signal; An origin pick 5, wherein the origin pick 5 is installed on a side of the sun-tracking component 2 facing the photoelectric sensor 4; The controller is used to control the sun-chasing component 2 to drive the photovoltaic panel component 1 to rotate around the tower 6. When the origin pick 5 passes through the photoelectric sensor 4, the controller controls the angle adjustment component 3 to calibrate the angle of the photovoltaic panel component 1.

[0025] In the above technical solution, the tower-mounted autonomous light-chasing device provided in this embodiment can adjust the angle of the photovoltaic panel assembly 1 at a fixed time through the cooperation of the photoelectric sensor 4, the origin paddle 5 and the controller, so as to realize the self-calibration of the light-chasing device to chase the sun altitude angle. At the same time, the controller controls the sun-chasing assembly 2 to drive the photovoltaic panel assembly 1 to chase the sun, so as to realize the autonomous light-chasing of the light-chasing device throughout the year, thereby improving the power generation efficiency and reducing the manufacturing cost. The tower 6 includes but is not limited to: small and medium-sized wind turbine towers, electric poles, street lights, and signal towers. Example

[0026] like Figures 4 to 8 As shown, the autonomous light-chasing device for a tower provided in this embodiment is different from the autonomous light-chasing device for a tower described in the first embodiment in that: It also includes a first annular slide rail 7 and a second annular slide rail 8, which are fixed on the tower 6 along the height direction of the tower 6. The sun-chasing component 2 is rotatably set on the tower 6 through the first annular slide rail 7, and the angle adjustment component 3 is rotatably set on the tower 6 through the second annular slide rail 8.

[0027] The sun-tracking assembly 2 includes a first slider 201, a bearing seat 202 and a driving end, wherein: The first slider 201 is slidably mounted on the first annular slide rail 7, the bearing seat 202 is fixed on the first slider 201 and connected to the photovoltaic panel assembly 1, and the driving end is used to drive the first slider 201 to move on the first annular slide rail 7 to drive the photovoltaic panel assembly 1 to rotate.

[0028] The connecting end includes a second slider 301, and the telescopic end includes an electric push rod 302, wherein: The second slider 301 is installed on the second annular slide rail 8, and the two ends of the electric push rod 302 are respectively connected to the slider and the photovoltaic panel assembly 1 through pins. In this embodiment, the pins include a top pin 303 and a bottom pin 304, wherein the top pin 303 is installed on the photovoltaic panel assembly 1, and the bottom pin is fixed on the second slider 301. The movable end of the electric push rod 302 is connected to the top pin 303 through a push rod connector 305, and the fixed end of the electric push rod 302 is connected to the bottom pin 304.

[0029] In order to realize the driving end driving the sun-chasing component 2, the driving end includes a driving member arranged on the outer periphery of the first annular slide rail 7, the output shaft of the driving member is provided with a driving gear 203, and the outer periphery of the tower 6 is provided with an annular rack 204 meshing with the driving gear 203, and the annular rack 204 is fixed to the first slider 201.

[0030] The driving member includes a planetary reducer 205 and a servo motor 206, wherein: The planetary reducer 205 and the servo motor 206 are fixed on the tower 6 , the servo motor 206 is connected to the planetary reducer 205 , and the planetary reducer 205 is connected to the driving gear 203 .

[0031] It also includes a connection reinforcement member 207, which is used to connect the bearing seat 202 and the photovoltaic panel assembly 1.

[0032] In order to cooperate with the sun-tracking assembly 2 to ensure the sun-tracking efficiency of the photovoltaic panel assembly 1 , the photovoltaic panel assembly 1 includes a plurality of photovoltaic panels, and the plurality of photovoltaic panels are arranged in a U shape outside the tower 6 .

[0033] like Fig. 9 As shown, in order to prevent the control system parameters from being wrong or the sun-chasing component from exceeding the preset stroke in the manual adjustment mode, a left limit paddle 208 and a right limit paddle 209 are also included, wherein: The left limit paddle 208, the origin paddle 5 and the right limit paddle 209 are arranged equidistantly along the circumferential direction of the annular rack 204 on one side of the annular rack 204 facing the first annular slide rail 7; The photoelectric sensor 4 is installed on the side of the first annular slide rail 7 facing the annular rack 204 and is connected to the controller signal. Example

[0034] This embodiment provides a light chasing method, which is used in the tower-based autonomous light chasing device described in Embodiment 1, and includes: Determine the target adjustment position of the current photovoltaic panel assembly 1, and adjust the photovoltaic panel assembly 1 to the target adjustment position through the angle adjustment assembly 3; The sun-chasing assembly 2 is started to drive the photovoltaic panel assembly 1 to rotate around the tower 6. During the rotation of the photovoltaic panel assembly 1, when the origin pick 5 passes the photoelectric sensor 4, the controller controls the angle adjustment assembly 3 to calibrate the angle of the photovoltaic panel assembly 1. Whenever the photovoltaic panel assembly 1 rotates around the tower 6 for one solar rotation cycle and when the origin pick 5 passes the photoelectric sensor 4, the target adjustment position of the photovoltaic panel assembly 1 is re-determined, and the photovoltaic panel assembly 1 is adjusted to the new target adjustment position through the angle adjustment assembly 3; The method for determining the target adjustment position of the photovoltaic panel assembly 1 includes: repeatedly adjusting the photovoltaic panel assembly 1 through the angle adjustment assembly 3, detecting the power generation of the photovoltaic panel assembly 1 during the adjustment process, and when the maximum power generation is detected, recording the current position and using this position (the angle of the photovoltaic panel assembly 1 at this time) as the target adjustment position; if it is identified that the power generation is lower than a preset threshold, it is determined to be cloudy, and the angle of the photovoltaic panel assembly 1 is recalibrated the next day to obtain a new target adjustment position; if the difference between the original angle and the angle of the photovoltaic panel assembly 1 at the new target adjustment position is greater than 2°, it is determined to be momentary obstruction by clouds, and the angle of the photovoltaic panel assembly 1 is recalibrated the next day.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An autonomous light-chasing device for a tower, characterized in that: include: Photovoltaic panel assembly (1); A sun-chasing assembly (2) is mounted on the tower (6); the sun-chasing assembly (2) is connected to the photovoltaic panel assembly (1) and is used to drive the photovoltaic panel assembly (1) to rotate around the tower (6); An angle adjustment component (3) is used to adjust the angle between the photovoltaic panel component (1) and the ground, the angle adjustment component (3) comprising a connecting end and a telescopic end, one end of the connecting end is slidably connected to the tower (6) and can rotate along the circumference of the tower (6) with the photovoltaic panel component (1) driven by the sun-tracking component (2), the other end of the connecting end is hinged to the telescopic end, one end of the telescopic end is connected to the connecting end, and the other end of the telescopic end is hinged to the photovoltaic panel component (1); A photoelectric sensor (4) is fixed on the tower (6) and is signal-connected to a controller; An origin pick (5), the origin pick (5) being mounted on a side of the sun-tracking component (2) facing the photoelectric sensor (4); The controller is used to control the sun-chasing component (2) to drive the photovoltaic panel component (1) to rotate around the tower (6); when the origin pick (5) passes through the photoelectric sensor (4), the controller controls the angle adjustment component (3) to calibrate the angle of the photovoltaic panel component (1).

2. The tower-mounted autonomous light-chasing device according to claim 1, characterized in that: It also comprises a first annular slide rail (7) and a second annular slide rail (8), wherein the first annular slide rail (7) and the second annular slide rail (8) are fixed on the tower (6) along the height direction of the tower (6), the sun-chasing component (2) is rotatably arranged on the tower (6) via the first annular slide rail (7), and the angle adjustment component (3) is rotatably arranged on the tower (6) via the second annular slide rail (8).

3. The tower-mounted autonomous light-chasing device according to claim 1, characterized in that: The sun-tracking assembly (2) comprises a first slider (201), a bearing seat (202) and a driving end, wherein: The first slider (201) is slidably mounted on the first annular slide rail (7), the bearing seat (202) is fixed on the first slider (201) and connected to the photovoltaic panel assembly (1), and the driving end is used to drive the first slider (201) to move on the first annular slide rail (7) to drive the photovoltaic panel assembly (1) to rotate.

4. The tower-mounted autonomous light-chasing device according to claim 1, characterized in that: The connecting end comprises a second sliding block (301), and the telescopic end comprises an electric push rod (302), wherein: The second sliding block (301) is mounted on a second annular sliding rail (8), and both ends of the electric push rod (302) are connected to the sliding block and the photovoltaic panel assembly (1) respectively through pins.

5. The tower-mounted autonomous light-chasing device according to claim 3, characterized in that: The driving end comprises a driving member arranged on the periphery of the first annular slide rail (7), the output shaft of the driving member is provided with a driving gear (203), the periphery of the tower (6) is provided with an annular rack (204) meshing with the driving gear (203), and the annular rack (204) is fixed to the first sliding block (201).

6. The tower-mounted autonomous light-chasing device according to claim 5, characterized in that: The driving member comprises a planetary reducer (205) and a servo motor (206), wherein: The planetary reducer (205) and the servo motor (206) are fixed on the tower (6); the servo motor (206) is connected to the planetary reducer (205); and the planetary reducer (205) is connected to the driving gear (203).

7. The tower-mounted autonomous light-chasing device according to claim 3, characterized in that: It also includes a connection reinforcement member (207), wherein the connection reinforcement member (207) is used to connect the bearing seat (202) and the photovoltaic panel assembly (1).

8. The tower-mounted autonomous light-chasing device according to claim 1, characterized in that: The photovoltaic panel assembly (1) comprises a plurality of photovoltaic panels, and the plurality of photovoltaic panels are arranged in a U shape outside the tower (6).

9. The tower-mounted autonomous light-chasing device according to claim 5, characterized in that: It also includes a left limit paddle (208) and a right limit paddle (209), wherein: The left limit paddle (208), the origin paddle (5) and the right limit paddle (209) are arranged in sequence and equidistantly along the circumferential direction of the annular rack (204) on a side of the annular rack (204) facing the first annular slide rail (7); The photoelectric sensor (4) is mounted on a side of the first annular slide rail (7) facing the annular rack (204), and is connected to the controller signal.

10. A light chasing method, used in the tower autonomous light chasing device according to any one of claims 1 to 9, characterized in that: include: Determining a target adjustment position of a current photovoltaic panel assembly (1), and adjusting the photovoltaic panel assembly (1) to the target adjustment position by means of an angle adjustment assembly (3); The sun-chasing assembly (2) is started to drive the photovoltaic panel assembly (1) to rotate around the tower (6); during the rotation of the photovoltaic panel assembly (1), when the origin pick (5) passes through the photoelectric sensor (4), the controller controls the angle adjustment assembly (3) to calibrate the angle of the photovoltaic panel assembly (1); Whenever the photovoltaic panel assembly (1) rotates around the tower 6 for one solar rotation cycle and when the origin pick (5) passes the photoelectric sensor (4), the target adjustment position of the photovoltaic panel assembly (1) is re-determined, and the photovoltaic panel assembly (1) is adjusted to the new target adjustment position through the angle adjustment assembly (3); The method for determining the target adjustment position of a photovoltaic panel assembly (1) comprises: repeatedly adjusting the photovoltaic panel assembly (1) by means of an angle adjustment assembly (3), detecting the power generation of the photovoltaic panel assembly (1) during the adjustment process, recording the current position when the maximum power generation is detected and using the position as the target adjustment position, determining that it is cloudy if the power generation is lower than a preset threshold, recalibrating the angle of the photovoltaic panel assembly (1) the next day to obtain a new target adjustment position; and determining that the angle of the photovoltaic panel assembly (1) at the original angle and the new target adjustment position is greater than 2°, determining that it is momentarily blocked by clouds, and recalibrating the angle of the photovoltaic panel assembly (1) the next day.

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