Multi-angle light-following large-area photovoltaic power generation system

Abstract

The invention discloses a multi-angle light-following large-area photovoltaic power generation system which comprises a photovoltaic panel square matrix and a multi-angle light-following supporting module. The multiple multi-angle light following supporting modules are distributed in a matrix mode, part of the multi-angle light following supporting modules have active telescopic driving force, and in the north-south light following state, the multi-angle light following supporting modules which are responsible for north-south light following and have the active telescopic driving force drive the whole photovoltaic panel square matrix to rotate around the north-south rotation center. The north-south rotation center is composed of one group of multi-angle light following supporting modules which are arranged in the direction parallel to the latitude line of the earth; in an east-west light following state, the multi-angle light following supporting module which is responsible for east-west light following and has active telescopic driving force drives the whole photovoltaic panel square matrix to rotate around an east-west rotation center. The photovoltaic power generation system not only has large-area photovoltaic panels arranged in a matrix mode, but also can carry out multi-angle light tracking, and has the advantages of being high in power generation efficiency, simple in structure, low in cost and the like.

Description

Technical Field

[0001] The present invention relates to a photovoltaic power generation device, and particularly to a large-area photovoltaic power generation system with multi-angle light tracking. Background Art

[0002] A solar panel is assembled by connecting a plurality of solar cell strings and parallel connections of photovoltaic semiconductor wafers that can directly generate electricity using sunlight. When sunlight perpendicularly irradiates the solar panel, the solar panel can obtain stronger sunlight and thus convert more electrical energy, and at this time, the photoelectric conversion efficiency of the solar panel is relatively high.

[0003] After the traditional solar panel is installed, the angle relative to the ground is fixed. Since the irradiation angle and direction of sunlight change continuously over time, the solar panels in the prior art can only be perpendicular to sunlight for a short period of time during a day, and most of the time they cannot face sunlight directly. Therefore, the photoelectric conversion efficiency is low and the power generation effect is poor. In response to this, some photovoltaic power generation devices that can track light have been proposed in the prior art. For example, a light-tracking type photovoltaic panel assembly disclosed in the utility model patent with the authorization publication number CN220586216U and a self-tracking type new energy photovoltaic power generation system and light-tracking method disclosed in the invention application with the application publication number CN119865117A.

[0004] However, the above-mentioned light-tracking photovoltaic power generation devices have the following deficiencies:

[0005] 1. It is only suitable for small-area photovoltaic panels to meet the light-tracking adjustment work of small-area photovoltaic panels, and is not suitable for large-area photovoltaic panel arrays, and there is room for improvement.

[0006] 2. Since a large-area photovoltaic panel array is obtained from multiple photovoltaic panel arrays, if a light-tracking mechanism is separately provided for each photovoltaic panel, not only is the structure complicated, but also the cost is relatively high. Summary of the Invention

[0007] The purpose of the present invention is to overcome the above problems, and provide a large-area photovoltaic power generation system with multi-angle light tracking. This photovoltaic power generation system not only has a large-area photovoltaic panel array arranged in a matrix, but also can perform multi-angle light tracking, and has the advantages of high power generation efficiency, simple structure, and low cost.

[0008] The purpose of the present invention is achieved through the following technical solutions:

[0009] A large-area photovoltaic power generation system with multi-angle light tracking includes a photovoltaic panel array and a multi-angle light-tracking support module arranged below the photovoltaic panel array;

[0010] There are multiple multi-angle light-tracking support modules arranged in a matrix, and some of the multi-angle light-tracking support modules have active telescopic driving forces. In the north-south light-tracking state, the multi-angle light-tracking support modules with active telescopic driving forces responsible for north-south light-tracking drive the entire photovoltaic panel array to rotate around the north-south rotation center, which is composed of a group of multi-angle light-tracking support modules arranged in the direction parallel to the earth's latitude;

[0011] In the east-west light-tracking state, the multi-angle light-tracking support modules with active telescopic driving forces responsible for east-west light-tracking drive the entire photovoltaic panel array to rotate around the east-west rotation center, which is composed of a group of multi-angle light-tracking support modules arranged in the direction parallel to the earth's longitude.

[0012] In a preferred embodiment of the present invention, the multi-angle light-tracking support module includes a plurality of active light-tracking support modules and a plurality of passive light-tracking support modules, and the active light-tracking support module is a multi-angle light-tracking support module with an active telescopic driving force.

[0013] Furthermore, there are three active light-tracking support modules arranged in an isosceles triangle distribution. The two base angles of the isosceles triangle are located at the two corner positions of the matrix, the apex angle of the isosceles triangle is located at the center position of the edge of the matrix, and the base of the isosceles triangle is parallel to the earth's latitude. With the above structure, since the north-south light-tracking angle is small and the light-tracking process is distributed throughout the year, in the north-south light-tracking state, the latitude queue corresponding to the active light-tracking support module at the apex angle of the isosceles triangle is used as the north-south rotation center (i.e., a boundary of the matrix), and the other two active light-tracking support modules simultaneously perform telescopic drives in the same direction, so as to drive the entire photovoltaic panel array to rotate around the east-west rotation center, adjust the attitude of the photovoltaic panel array following the direction of sunlight, and thus obtain the best power generation efficiency. Further, since the east-west light-tracking angle is large and light-tracking is carried out every day, in the east-west light-tracking state, the longitude queue corresponding to the active light-tracking support module at the apex angle of the isosceles triangle is used as the north-south rotation center (i.e., a center line of the matrix), and the other two active light-tracking support modules respectively perform opposite telescopic drives, so that both ends of the photovoltaic panel array swing in opposite directions simultaneously, effectively reducing the driving amplitude of the active light-tracking support module and being more convenient.

[0014] A preferred embodiment of the present invention, wherein the active light-tracking support module includes an active hydraulic cylinder, an active solenoid valve, and a universal rotating connection mechanism. One end of the active hydraulic cylinder is connected to the bracket of the photovoltaic panel array through a universal ball structure, and the other end of the active hydraulic cylinder is hinged to the universal rotating connection mechanism; the passive light-tracking support module includes a passive hydraulic cylinder, a passive solenoid valve, and a universal rotating connection mechanism. One end of the passive hydraulic cylinder is connected to the bracket of the photovoltaic panel array through a universal ball structure, and the other end of the passive hydraulic cylinder is hinged to the universal rotating connection mechanism. With the above structure, during the east-west light-tracking operation, before the sun rises, the control unit controls the active solenoid valve of the active light-tracking support module corresponding to the east-west rotation center and the passive solenoid valve of the passive light-tracking support module to enter the closed state, and the passive solenoid valves of other passive light-tracking support modules enter the open state. The active hydraulic cylinder of the active light-tracking support module located in the east is controlled to drive the corresponding end of the photovoltaic panel array to swing downward, and the active hydraulic cylinder of the active light-tracking support module located in the west is controlled to drive the corresponding end of the photovoltaic panel array to swing upward, so that the entire photovoltaic panel array faces east to welcome the sun. Similarly, during the north-south light-tracking operation, according to the above operation method, the corresponding active light-tracking support module drives the photovoltaic panel array to swing around the north-south rotation center in real time towards the sun.

[0015] Further, the active solenoid valve is a three-position four-way solenoid valve. Two of the four ports of the three-position four-way solenoid valve are respectively communicated with both ends of the inner cavity of the active hydraulic cylinder, and the other two ports of the three-position four-way solenoid valve are communicated with the hydraulic oil supply device. By controlling the flow direction of the three-position four-way solenoid valve, the telescopic operation and stop operation of the active hydraulic cylinder can be realized to meet the requirements.

[0016] Further, the active light-tracking support module also includes a passive solenoid valve. The passive solenoid valve is a two-position two-way solenoid valve. The two ports of the two-position two-way solenoid valve are respectively communicated with both ends of the inner cavity of the active hydraulic cylinder. In the non-light-tracking state, the two-position two-way solenoid valve is in the closed state to prevent the flow of hydraulic oil, thereby realizing rigid support; in the light-tracking state, the two-position two-way solenoid valve is in the open state to allow the flow of hydraulic oil and does not restrict the attitude adjustment of the photovoltaic panel array.

[0017] A preferred embodiment of the present invention, wherein the universal rotating connection mechanism includes a protective cover, a first hinged support assembly, and a second hinged support assembly;

[0018] The first articulated support assembly includes a first support base and a first locking structure, and the second articulated support assembly includes a second support base and a second locking structure; the first support base is fixedly connected to the bottom surface, the second support base is articulated to the first support base through a first articulated shaft, the active hydraulic cylinder or the passive hydraulic cylinder is articulated to the second support base through a second articulated shaft, the first locking structure is used to lock the second support base and the first articulated shaft, and the second locking structure is used to lock the active hydraulic cylinder or the passive hydraulic cylinder and the second articulated shaft.

[0019] Further, the first locking structure and the second locking structure are the same, and both include a fixing member, a vertically movable seat, a pair of locking clips and a locking driving member;

[0020] The fixing member is fixedly connected to the second support base; the vertically movable seat can move vertically relative to the fixing member, and two long circular holes are provided on the vertically movable seat; the pair of locking clips are articulated to the fixing member with the same articulated shaft, and a swing transmission portion and a locking groove are provided on the locking clip, the swing transmission portion extends into the long circular hole, and the first articulated shaft and the second articulated shaft are respectively located between the locking grooves of the corresponding two locking clips; the locking driving member is used to drive the vertically movable seat to move vertically.

[0021] Further, the locking driving member is a locking driving motor, there is one such locking driving motor, and the output shaft of the locking driving motor is connected with a cam; the vertically movable seats of the second locking structure and the first locking structure are located on the upper and lower sides of the cam;

[0022] Both the first locking structure and the second locking structure further include a spreading spring, and the two ends of the spreading spring respectively abut against the two locking clips.

[0023] With the above structure, if it is necessary to enter the locking state, the cam is driven to rotate in the corresponding direction through the locking driving motor, so that the cam performs a pushing stroke movement, that is, the point of the cam farthest from the center of the circle gradually turns to the vertically movable seats of the first locking structure and the second locking structure, thereby pushing the vertically movable seat of the first locking structure to move downward (the vertically movable seat of the second locking structure moves upward), prompting the locking grooves of the two locking clips to approach the first articulated shaft (the second articulated shaft), and then holding on the first articulated shaft (the second articulated shaft), and the spreading spring undergoes compressive deformation to store energy. At this time, both the second support base and the active hydraulic cylinder or the passive hydraulic cylinder are in a locked state, so as to stably support the photovoltaic panel array; similarly, if it is necessary to enter the unlocking state, the cam is driven to rotate in the reverse direction through the locking driving motor, the spreading spring releases the potential energy and restores the deformation, driving the locking grooves of the two locking clips to move away from the first articulated shaft (the second articulated shaft), thereby realizing unlocking, which is very ingenious.

[0024] The present invention has the following beneficial effects compared with the prior art:

[0025] 1. The multi-angle light-tracking large-area photovoltaic power generation system of the present invention is provided with a plurality of multi-angle light-tracking support modules distributed in a matrix. Some of the multi-angle light-tracking support modules have an active telescopic driving force, which can drive the entire photovoltaic panel array to swing around the north-south rotation center or the east-west rotation center for real-time light tracking, so as to obtain the highest power generation efficiency.

[0026] 2. The photovoltaic power generation system of the present invention not only has a large-area photovoltaic panel arranged in a matrix, but also can perform multi-angle light tracking, which is beneficial to obtaining a higher power generation efficiency.

[0027] 3. The multi-angle light-tracking large area of the present invention also has the advantages of simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figures 1-2 Stereoscopic structure diagrams of two different perspectives of the multi-angle light-tracking large-area photovoltaic power generation system of the present invention.

[0029] Figure 3 The bottom view of the multi-angle light-tracking large-area photovoltaic power generation system of the present invention, where the thick center line in the figure represents the rotation center and the thin center line represents an isosceles triangle.

[0030] Figures 4-5 Stereoscopic structure diagram of the active light-tracking support module of the present invention, where Figure 5 the protective cover is hidden.

[0031] Figure 6 Stereoscopic structure diagram of the passive light-tracking support module of the present invention.

[0032] Figure 7 Front view of the universal rotating connection mechanism of the present invention.

[0033] Figure 8 Side view of the universal rotating connection mechanism of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0035] Combined with Figures 1-3, the multi-angle sunlight-tracking large-area photovoltaic power generation system of this embodiment includes a photovoltaic panel array 1 and a multi-angle sunlight-tracking support module arranged below the photovoltaic panel array 1; there are multiple multi-angle sunlight-tracking support modules and they are distributed in a matrix. Some of the multi-angle sunlight-tracking support modules have active telescopic driving forces. In the north-south sunlight-tracking state, the multi-angle sunlight-tracking support modules with active telescopic driving forces responsible for north-south sunlight-tracking drive the entire photovoltaic panel array 1 to rotate around the north-south rotation center, and this north-south rotation center is composed of a group of multi-angle sunlight-tracking support modules arranged in the direction parallel to the earth's latitude; in the east-west sunlight-tracking state, the multi-angle sunlight-tracking support modules with active telescopic driving forces responsible for east-west sunlight-tracking drive the entire photovoltaic panel array 1 to rotate around the east-west rotation center, and this east-west rotation center is composed of a group of multi-angle sunlight-tracking support modules arranged in the direction parallel to the earth's longitude.

[0036] Combined with Figures 1-3 , the multi-angle sunlight-tracking support module includes several active sunlight-tracking support modules 2 and several passive sunlight-tracking support modules 3, and the active sunlight-tracking support module 2 is a multi-angle sunlight-tracking support module with an active telescopic driving force.

[0037] Furthermore, there are three active sunlight-tracking support modules 2 and they are distributed in an isosceles triangle. The two base angles of this isosceles triangle are located at two corner positions of the matrix, the apex angle of this isosceles triangle is located at the center position of the edge of the matrix, and the base of this isosceles triangle is parallel to the earth's latitude. Through the above structure, since the north-south sunlight-tracking angle is small and the sunlight-tracking process is distributed throughout the year, in the north-south sunlight-tracking state, the latitude queue corresponding to the active sunlight-tracking support module 2 at the apex angle of the isosceles triangle is used as the north-south rotation center (i.e., a boundary of the matrix), and the other two active sunlight-tracking support modules 2 perform telescopic drives in the same direction at the same time, so as to drive the entire photovoltaic panel array 1 to rotate around the east-west rotation center and adjust the attitude of the photovoltaic panel array 1 following the direction of sunlight to obtain the best power generation efficiency. Further, since the east-west sunlight-tracking angle is large and sunlight-tracking needs to be carried out every day, in the east-west sunlight-tracking state, the longitude queue corresponding to the active sunlight-tracking support module 2 at the apex angle of the isosceles triangle is used as the north-south rotation center (i.e., a center line of the matrix), and the other two active sunlight-tracking support modules 2 perform telescopic drives in opposite directions respectively, so that both ends of the photovoltaic panel array 1 swing in opposite directions at the same time, effectively reducing the driving amplitude of the active sunlight-tracking support module 2 and being more convenient.

[0038] Combined with Figures 4-6, the active light-tracking support module 2 includes an active hydraulic cylinder 4, an active solenoid valve, and a universal rotating connection mechanism. One end of the active hydraulic cylinder 4 is connected to the bracket of the photovoltaic panel array 1 through a universal ball structure 19, and the other end of the active hydraulic cylinder 4 is hinged to the universal rotating connection mechanism; the passive light-tracking support module 3 includes a passive hydraulic cylinder 5, a passive solenoid valve, and a universal rotating connection mechanism. One end of the passive hydraulic cylinder 5 is connected to the bracket of the photovoltaic panel array 1 through a universal ball structure 19, and the other end of the passive hydraulic cylinder 5 is hinged to the universal rotating connection mechanism.

[0039] Further, the active solenoid valve is a three-position four-way solenoid valve 6. Two of the ports of the three-position four-way solenoid valve 6 are respectively communicated with both ends of the inner cavity of the active hydraulic cylinder 4, and two of the ports of the three-position four-way solenoid valve 6 are communicated with the hydraulic oil supply device. By controlling the flow direction of the three-position four-way solenoid valve 6, the telescopic operation and stop operation of the active hydraulic cylinder 4 can be realized to meet the requirements.

[0040] Further, the active light-tracking support module 2 also includes a passive solenoid valve. The passive solenoid valve is a two-position two-way solenoid valve 7. Two ports of the two-position two-way solenoid valve 7 are respectively communicated with both ends of the inner cavity of the active hydraulic cylinder 4. In the non-light-tracking state, the two-position two-way solenoid valve 7 is in the closed state to prevent the flow of hydraulic oil, thereby realizing rigid support; in the light-tracking state, the two-position two-way solenoid valve 7 is in the open state to allow the flow of hydraulic oil and not restrict the attitude adjustment of the photovoltaic panel array 1.

[0041] Combined with Figures 7-8 , the universal rotating connection mechanism includes a protective cover 8, a first hinge support assembly, and a second hinge support assembly; the first hinge support assembly includes a first support seat 9 and a first locking structure, and the second hinge support assembly includes a second support seat 10 and a second locking structure; the first support seat 9 is fixedly connected to the bottom surface, the second support seat 10 is hinged to the first support seat 9 through a first hinge shaft 11, the active hydraulic cylinder 4 or the passive hydraulic cylinder 5 is hinged to the second support seat 10 through a second hinge shaft 12, the first locking structure is used to lock the second support seat 10 and the first hinge shaft 11, and the second locking structure is used to lock the active hydraulic cylinder 4 or the passive hydraulic cylinder 5 and the second hinge shaft 12.

[0042] Further, the first locking structure and the second locking structure are the same, and both include a fixing member 13, a vertically movable seat 14, a pair of locking clips 15, and a locking driving member; the fixing member 13 is fixedly connected to the second support seat 10; the vertically movable seat 14 can move vertically relative to the fixing member 13, and two long circular holes are provided on the vertically movable seat 14; the pair of locking clips 15 are hinged to the fixing member 13 with the same hinge shaft, and a swing transmission portion 15-1 and a locking groove are provided on the locking clip 15, the swing transmission portion 15-1 extends into the long circular hole, and the first hinge shaft 11 and the second hinge shaft 12 are respectively located between the locking grooves of the corresponding two locking clips 15; the locking driving member is used to drive the vertically movable seat 14 to move vertically.

[0043] Further, the locking driving member is a locking driving motor 16, and there is one such locking driving motor 16. The output shaft of the locking driving motor 16 is connected with a cam 17; the vertically movable seats 14 of the second locking structure and the first locking structure are located on the upper and lower sides of the cam 17; the first locking structure and the second locking structure also both include a spreading spring 18, and both ends of the spreading spring 18 respectively abut against the two locking clips 15.

[0044] With the above structure, if it is necessary to enter the locking state, the locking driving motor 16 is driven to rotate the cam 17 in the corresponding direction, so that the cam 17 performs a push stroke movement, that is, the point of the cam 17 farthest from the center gradually turns towards the vertically movable seats 14 of the first locking structure and the second locking structure, thereby pushing the vertically movable seat 14 of the first locking structure to move downward (the vertically movable seat 14 of the second locking structure moves upward), prompting the locking grooves of the two locking clips 15 to approach the first hinge shaft 11 (the second hinge shaft 12), and then clamping on the first hinge shaft 11 (the second hinge shaft 12), and the spreading spring 18 is compressed and deformed to store energy. At this time, the second support seat 10, the active hydraulic cylinder 4 or the passive hydraulic cylinder 5 are all in a locked state to stably support the photovoltaic panel array 1; similarly, if it is necessary to enter the unlocking state, the locking driving motor 16 is driven to rotate the cam 17 in the reverse direction, the spreading spring 18 releases the potential energy and restores the deformation, driving the locking grooves of the two locking clips 15 to move away from the first hinge shaft 11 (the second hinge shaft 12), thereby realizing unlocking, which is very ingenious.

[0045] Combined with Figures 1-4 , the working principle of the multi-angle light-tracking large-area photovoltaic power generation system of this embodiment is:

[0046] In the east-west light tracking operation, before the sun rises, the control unit controls the active solenoid valves of the active light tracking support module 2 corresponding to the east-west rotation center and the passive solenoid valves of the passive light tracking support module 3 to enter the closed state, the passive solenoid valves of the other passive light tracking support modules 3 to enter the open state, and controls the active hydraulic cylinders 4 of the active light tracking support module 2 located in the east to drive the corresponding end of the photovoltaic panel array 1 to swing downward, and controls the active hydraulic cylinders 4 of the active light tracking support module 2 located in the west to drive the corresponding end of the photovoltaic panel array 1 to swing upward, so that the entire photovoltaic panel array 1 faces east to welcome the sun.

[0047] Similarly, in the north-south light tracking operation, according to the above operation method, the corresponding active light tracking support module 2 drives the photovoltaic panel array 1 to swing around the north-south rotation center in real time towards the sun.

[0048] The above is a preferred embodiment of the present invention, but the embodiments of the present invention are not limited by the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A multi-angle light-tracking large-area photovoltaic power generation system, characterized in that, It includes a photovoltaic panel array and a multi-angle light-tracking support module arranged below the photovoltaic panel array; There are multiple multi-angle light-tracking support modules arranged in a matrix, and some of the multi-angle light-tracking support modules have active telescopic driving forces. In the north-south light-tracking state, the multi-angle light-tracking support modules with active telescopic driving forces responsible for north-south light-tracking drive the entire photovoltaic panel array to rotate around the north-south rotation center, and the north-south rotation center is composed of one group of multi-angle light-tracking support modules arranged in the direction parallel to the earth's latitude; In the east-west light-tracking state, the multi-angle light-tracking support modules with active telescopic driving forces responsible for east-west light-tracking drive the entire photovoltaic panel array to rotate around the east-west rotation center, and the east-west rotation center is composed of one group of multi-angle light-tracking support modules arranged in the direction parallel to the earth's longitude.

2. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 1, wherein The multi-angle light-tracking support module includes several active light-tracking support modules and several passive light-tracking support modules, and the active light-tracking support module is a multi-angle light-tracking support module with an active telescopic driving force.

3. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 2, wherein, There are three active light-tracking support modules arranged in an isosceles triangle distribution. The two base angles of the isosceles triangle are located at the two corner positions of the matrix, the apex angle of the isosceles triangle is located at the center of the edge of the matrix, and the base of the isosceles triangle is parallel to the earth's latitude.

4. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 2, wherein The active light-tracking support module includes an active hydraulic cylinder, an active solenoid valve, and a universal rotating connection mechanism. One end of the active hydraulic cylinder is connected to the bracket of the photovoltaic panel array through a universal ball structure, and the other end of the active hydraulic cylinder is hinged to the universal rotating connection mechanism; the passive light-tracking support module includes a passive hydraulic cylinder, a passive solenoid valve, and a universal rotating connection mechanism. One end of the passive hydraulic cylinder is connected to the bracket of the photovoltaic panel array through a universal ball structure, and the other end of the passive hydraulic cylinder is hinged to the universal rotating connection mechanism.

5. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 4, wherein, The active solenoid valve is a three-position four-way solenoid valve. Two of the ports of the three-position four-way solenoid valve are respectively communicated with both ends of the inner cavity of the active hydraulic cylinder, and two of the ports of the three-position four-way solenoid valve are communicated with the hydraulic oil supply device.

6. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 4, wherein, The active light-tracking support module also includes a passive solenoid valve. The passive solenoid valve is a two-position two-way solenoid valve, and the two ports of the two-position two-way solenoid valve are respectively communicated with both ends of the inner cavity of the active hydraulic cylinder.

7. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 6, characterized in that, In the non-light-tracking state, the two-position two-way solenoid valve is in the closed state to prevent the flow of hydraulic oil; in the light-tracking state, the two-position two-way solenoid valve is in the open state to facilitate the flow of hydraulic oil.

8. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 4, characterized in that, The universal rotating connection mechanism includes a protective cover, a first hinged support assembly, and a second hinged support assembly; The first articulated support assembly includes a first support base and a first locking structure, and the second articulated support assembly includes a second support base and a second locking structure; the first support base is fixedly connected to the bottom surface, the second support base is articulated to the first support base through a first articulated shaft, the active hydraulic cylinder or the passive hydraulic cylinder is articulated to the second support base through a second articulated shaft, the first locking structure is used to lock the second support base and the first articulated shaft, and the second locking structure is used to lock the active hydraulic cylinder or the passive hydraulic cylinder and the second articulated shaft.

9. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 8, wherein, The first locking structure and the second locking structure are the same, and both include a fixing member, a vertically movable seat, a pair of locking clips and a locking driving member; The fixing member is fixedly connected to the second support base; the vertically movable seat can move vertically relative to the fixing member, and two long circular holes are provided on the vertically movable seat; the pair of locking clips are articulated to the fixing member with the same articulated shaft, and a swing transmission part and a locking groove are provided on the locking clip, the swing transmission part extends into the long circular hole, and the first articulated shaft and the second articulated shaft are respectively located between the locking grooves of the corresponding two locking clips; the locking driving member is used to drive the vertically movable seat to move vertically.

10. The multi-angle light-tracking large-area photovoltaic power generation system according to claim 9, characterized in that The locking driving member is a locking driving motor, there is one such locking driving motor, and the output shaft of the locking driving motor is connected with a cam; the vertically movable seats of the second locking structure and the first locking structure are located on the upper and lower sides of the cam; The first locking structure and the second locking structure both further include a spreading spring, and both ends of the spreading spring respectively abut against the two locking clips.

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