Self-light following type new energy photovoltaic power generation system and light following method

Abstract

The invention relates to the technical field of photovoltaic power generation, and discloses a self-light-following new energy photovoltaic power generation system and a light-following method.The self-light-following new energy photovoltaic power generation system comprises a plurality of photovoltaic panels and supports, the supports are arranged, the self-light-following new energy photovoltaic power generation system further comprises a transmission mechanism, a linkage frame and a driving mechanism, and the driving mechanism comprises a driving box; a lifting driving mechanism, a rotation driving mechanism and a transmission arm are arranged on the driving box, the lifting driving mechanism and the rotation driving mechanism respectively drive the transmission arm to realize lifting and rotation actions, the linkage frame is matched with the transmission mechanism and the transmission arm, the transmission mechanism enables the photovoltaic panel to realize rotation in two directions, and a light following unit is arranged on the photovoltaic panel. According to the invention, the linkage of the angle adjustment of the plurality of photovoltaic panels is realized, the real-time light tracking method is solved, the deviation orientation of the photovoltaic panels is obtained through the principle that the photovoltaic sub-panels at different angles have different power generation efficiencies, and the synchronous angle adjustment of the plurality of photovoltaic panels is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a self-tracing new energy photovoltaic power generation system and a light-tracing method. Background Art

[0002] Photovoltaic power generation, as an environmentally friendly and renewable new energy source, is widely used in many fields such as households, commerce and industry, and has become an important part of global renewable energy. At present, my country's photovoltaic power generation installed capacity has ranked first in the world for many years, accounting for about half of the world's total installed capacity. Continuous technological innovation has promoted the progress of monocrystalline silicon technology, polycrystalline silicon technology and thin film technology. Distributed photovoltaic projects have been rapidly promoted in China, including applications in different fields such as residences, factories and agriculture, which has promoted electricity security and economic development in rural and remote areas.

[0003] Limited by the difficulty of breaking through new materials for photovoltaic modules, the efficiency of photovoltaic power generation has been improving slowly, and other ways to improve power generation efficiency need to be sought. The core principle of photovoltaic power generation is the photovoltaic effect. The photovoltaic effect refers to the fact that when photons (light particles) hit semiconductor materials (such as silicon), they can excite electrons and cause them to break away from atoms to form free electrons. This process is the basis of photovoltaic power generation. When sunlight shines vertically on the surface of photovoltaic modules, the energy density of light is the highest, and photovoltaic modules can capture more light energy. If sunlight is incident at a smaller angle, the light intensity will be weakened, resulting in a decrease in the efficiency of photovoltaic power generation. Therefore, the installation angle and direction of photovoltaic modules need to be optimized according to geographical location and seasonal changes to obtain the best lighting conditions.

[0004] The existing photovoltaic panel installation method adopts a fixed installation. The installation angle of photovoltaic panels will be different in different regions according to the latitude. Research on the power generation efficiency of a single photovoltaic panel during the day will find that the power generation efficiency is highest at noon. When the sunlight directly hits the photovoltaic panel, the power generation efficiency reaches its peak. From sunrise to sunset, the angle of sunlight is constantly changing. How to make the photovoltaic panel face the sun is an urgent problem to be solved in order to improve the actual power generation efficiency of photovoltaic panels. In addition, in order to improve the economy, the angle adjustment structure of the photovoltaic panel should not be too complicated, which will increase the transformation cost. This is another difficult problem in the construction of a chasing light power generation system. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a self-tracing new energy photovoltaic power generation panel.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: a self-tracking new energy photovoltaic power generation system, comprising a plurality of photovoltaic panels and brackets, wherein the brackets are arranged in an array, the brackets comprising a bottom plate, a vertical pole is arranged on the bottom plate, a support plate is arranged on the vertical pole, and the photovoltaic panels are arranged on the support plate; The photovoltaic panel comprises a substrate, on which a plurality of photovoltaic sub-panels 1 are arranged, wherein a light-chasing unit is arranged on the substrate of one of the photovoltaic panels, and the light-chasing unit comprises a light-chasing group 1 and a light-chasing group 2, wherein the light-chasing group 1 comprises a photovoltaic sub-panel 2 and a photovoltaic sub-panel 3 arranged longitudinally, the light-chasing group 1 is symmetrically arranged and both have an angle α with the longitudinal line of the substrate, and the light-chasing group 2 comprises a photovoltaic sub-panel 4 and a photovoltaic sub-panel 5 arranged transversely, the light-chasing group 2 is symmetrically arranged and both have an angle β with the transverse line of the substrate, and α and β are in the range of 10° to 40°; A support platform is provided on the top of the vertical pole, a turntable is provided on the support platform for rotation, and the support plate is hinged to the turntable; It also includes a driving mechanism, which includes a lifting driving mechanism and a rotating driving mechanism. The lifting driving mechanism includes a motor 1 for driving the photovoltaic panel to rotate in a vertical plane, and the rotating driving mechanism includes a motor 2 for driving the photovoltaic panel to rotate in a horizontal plane.

[0007] As an improvement: it also includes a transmission mechanism and a linkage frame, the driving mechanism also includes a driving box and a transmission arm, the lifting driving mechanism and the rotating driving mechanism are arranged in the driving box, the lifting driving mechanism and the rotating driving mechanism respectively drive the transmission arm to realize lifting and rotating movements, the linkage frame cooperates with the transmission mechanism and the transmission arm, the transmission arm transmits the driving force of the lifting driving mechanism and the rotating driving mechanism to multiple transmission mechanisms through the linkage frame, the transmission mechanism drives the support plate to move, so that the photovoltaic panel can realize rotation in two directions.

[0008] As an improvement: the transmission mechanism includes a ring platform, a double-linked arm, a transmission rod, a transmission shaft and a transmission arm. The ring platform is rotatably arranged on the vertical pole, the double-linked arm is hinged to the ring platform, one end of the transmission rod is hinged to the double-linked arm, and the other end is hinged to the transmission shaft. Both ends of the transmission shaft are respectively connected to two transmission arms. A rotating shaft is rotatably provided on the turntable, and a connecting column is provided on the rear side of the support plate. The connecting column is hinged to the turntable through the rotating shaft, and the end of the transmission arm is connected to the rotating shaft and the connecting column.

[0009] As an improvement: the linkage frame includes two longitudinal trusses, a transverse truss one, a transverse truss two and a transverse truss three, the transverse truss one, the transverse truss two and the transverse truss three are arranged between the two longitudinal trusses and connected to the longitudinal trusses, a plurality of transmission bent rods are arranged on the longitudinal trusses, the transverse truss one, the transverse truss two and the transverse truss three are all provided with transmission straight rods, the transmission rods are provided with driving columns, and the ends of the transmission bent rods and the transmission straight rods are respectively hinged to the driving columns of different transmission mechanisms.

[0010] As an improvement: the transmission arm includes a lifting and rotating driving cylinder, a driving arm is provided on the outside of the driving cylinder, a slider is provided in the sliding groove on the top of the driving arm, the top of the slider is rotatably connected to the linkage frame, and the axial distance between the slider and the driving cylinder is equal to the axial distance between the vertical rod and the transmission rod.

[0011] As an improvement: the lifting drive mechanism includes a motor, a threaded column and a lifting tube. The motor and the threaded column are matched through gear transmission. A threaded hole matching the threaded column is provided at the bottom of the lifting tube, and a rotating block matching the driving cylinder is provided at the top. A limit platform is provided on the outside of the lifting tube, and a through hole matching the limit platform is provided on the driving box.

[0012] As an improvement: the rotation drive mechanism includes motor 2, a spline shaft, gear 5 and a retaining table. Motor 2 and the spline shaft are matched through gear transmission. The inner side of gear 5 is provided with a spline groove that matches the spline shaft. Gear 5 is rotatably arranged on the retaining table. The retaining table is rotatably matched with the driving cylinder, and the driving cylinder is provided with a gear ring that meshes with gear 5.

[0013] As an improvement: it also includes a detection unit, a judgment unit and a control unit. The positive and negative poles of photovoltaic sub-panel two of light chasing group one are respectively connected to the negative and positive poles of photovoltaic sub-panel three to form a group of pole paths a and pole paths b. The positive and negative poles of photovoltaic sub-panel four of light chasing group two are respectively connected to the negative and positive poles of photovoltaic sub-panel five to form another group of pole paths a and pole paths b. The two groups of circuits are connected to the detection unit. The detection unit detects the voltage between pole paths a and pole paths b. After reaching the threshold, the judgment unit judges the polarity of the two groups of circuits. The circuit polarity is determined by the power generation of each of the light chasing group one and the light chasing group two. According to the circuit polarity, the control unit drives motor one or motor two to rotate forward or reverse, and drives the photovoltaic panel to rotate on the horizontal plane and the vertical plane.

[0014] A light chasing method comprises the following steps: S1: The light-chasing group 1 and the light-chasing group 2 of the light-chasing unit absorb solar energy to generate electricity, and the power generation of the inclined photovoltaic sub-panel 2 and photovoltaic sub-panel 3, photovoltaic sub-panel 4 and photovoltaic sub-panel 5 is different; S2: The two groups of pole paths a and pole paths b of the output circuit of the light chasing unit generate potential differences respectively, and the detection unit detects the voltage magnitudes of the two paths respectively; S3: The judgment unit judges the polarity of the two circuits respectively. When the polarity of the polarity of the polarity a is positive and the polarity of the polarity b is negative, the judgment unit generates a positive signal, otherwise it generates a negative signal, and transmits the signal to the control unit; S4: After receiving the signal, the control unit drives motor 1 and motor 2 to rotate respectively. The positive signal drives motor 1 and motor 2 to rotate forward, and the negative signal drives motor 1 and motor 2 to rotate reversely. S5: The forward rotation of motor 1 will make the photovoltaic panel rotate upward in the vertical plane, and the reverse rotation will make the photovoltaic panel rotate downward in the vertical plane. The forward rotation of motor 2 will make the photovoltaic panel rotate eastward in the horizontal plane, and the reverse rotation will make the photovoltaic panel rotate westward in the horizontal plane.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes the linkage of angle adjustment of multiple photovoltaic panels and solves the method of real-time light chasing. The deviation orientation of the photovoltaic panel is obtained by the principle that the power generation efficiency of photovoltaic sub-panels at different angles is different. The synchronous angle adjustment of multiple photovoltaic panels is realized through the linkage and driving structure, which not only improves the actual power generation efficiency of the photovoltaic panels, but also reduces the modification cost of adjusting multiple photovoltaic panels. Specifically: 1. A simple improvement was made to the photovoltaic panel used to detect the sun's position. Through four photovoltaic panels at different angles, the angle deviation of the sun's angle in the horizontal and vertical planes was obtained by group comparison, solving the problem of light angle positioning. 2. Improve the support structure. Add a turntable and a support plate to the existing support form, cooperate with the transmission mechanism, and adjust the angle of the photovoltaic panel by lifting and rotating the transmission rod; 3. Add a set of driving mechanism and linkage frame, through which the linkage frame can realize lifting and rotating actions, and transmit the force to the transmission rods on multiple photovoltaic panel brackets to realize synchronous angle adjustment; 4. The lifting drive mechanism and the rotating drive mechanism cooperate to realize the lifting and rotating actions of the transmission arm and drive the linkage frame to move. The problem of the change in the distance between the two axes caused by the lifting of the transmission mechanism can be solved by the cooperation of the slider on the transmission arm and the linkage frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a self-tracing new energy photovoltaic power generation system of the present invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of a self-tracing new energy photovoltaic power generation system of the present invention. Figure 2 .

[0018] Figure 3 It is a structural schematic diagram of a self-tracing new energy photovoltaic power generation system support and a transmission mechanism of the present invention.

[0019] Figure 4 The invention discloses a self-tracing new energy photovoltaic power generation system support and transmission mechanism. Figure 1 .

[0020] Figure 5 The invention discloses a self-tracing new energy photovoltaic power generation system support and transmission mechanism. Figure 2 .

[0021] Figure 6 It is a structural schematic diagram of a self-tracing new energy photovoltaic power generation system linkage frame of the present invention.

[0022] Figure 7The invention discloses a linkage diagram of a transmission mechanism, a linkage frame and a driving mechanism of a self-tracing new energy photovoltaic power generation system.

[0023] Figure 8 It is a structural schematic diagram of a driving mechanism of a self-tracing new energy photovoltaic power generation system of the present invention.

[0024] Fig. 9 It is a schematic diagram of the internal structure of a driving mechanism of a self-tracing new energy photovoltaic power generation system of the present invention.

[0025] Fig.10 It is an exploded diagram of a driving mechanism of a self-tracing new energy photovoltaic power generation system of the present invention.

[0026] Fig.11 It is a structural schematic diagram of a photovoltaic panel of a self-tracing new energy photovoltaic power generation system of the present invention.

[0027] Fig.12 It is a cross-sectional view of a first embodiment of a light chasing unit of a light chasing method of the present invention.

[0028] Fig.13 It is a flow chart of a first embodiment of a light chasing unit of a light chasing method of the present invention.

[0029] Fig.14 It is a cross-sectional view of a second embodiment of a light chasing unit of a light chasing method of the present invention.

[0030] Fig.15 It is a flow chart of a second embodiment of a light chasing unit of a light chasing method of the present invention.

[0031] As shown in the figure: 1. Photovoltaic panel; 2. Bracket; 3. Transmission mechanism; 4. Linkage frame; 5. Drive mechanism; 6. Lifting drive mechanism; 7. Rotation drive mechanism; 8. Transmission arm; 11. Base plate; 12. Photovoltaic sub-panel 1; 13. Photovoltaic sub-panel 2; 14. Photovoltaic sub-panel 3; 15. Photovoltaic sub-panel 4; 16. Photovoltaic sub-panel 5; 21. Vertical pole; 22. Bottom plate; 23. Support platform; 24. Turntable; 241. Rotating shaft; 25. Support plate; 251. Connecting column; 252. Slot; 31. Ring platform; 311. Wing platform; 32. Double arm rod; 321. Connecting rod; 33. Transmission rod; 331. Drive column; 34. Transmission shaft; 35. Transmission arm; 351, connecting platform; 352, inserting platform; 41, longitudinal truss; 411, transmission bent rod; 42, transverse truss one; 421, transmission straight rod; 43, transverse truss two; 44, transverse truss three; 441, transmission plate platform; 51, drive box; 52, fixing plate; 61, motor one; 62, gear one; 63, gear two; 64, threaded column; 65, lifting tube; 651, limit platform; 66, rotating block; 71, motor two; 72, gear three; 73, gear four; 74, spline shaft; 75, gear five; 751, spline groove; 76, holding platform; 81, drive cylinder; 82, drive arm; 83, slider; 84, gear ring. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0033] Combined with Figure 1 , Attachment Figure 2 and attached Figure 7 As shown, a self-tracing new energy photovoltaic power generation system includes multiple photovoltaic panels 1 and brackets 2, the brackets 2 are arranged in an array, and also include transmission mechanisms 3, linkage frames 4 and drive mechanisms 5. The drive mechanism 5 includes a drive box 51, and the drive box 51 is provided with a lifting drive mechanism 6, a rotating drive mechanism 7 and a transmission arm 8. The lifting drive mechanism 6 and the rotating drive mechanism 7 respectively drive the transmission arm 8 to realize lifting and rotating actions. The linkage frame 4 cooperates with the transmission mechanism 3 and the transmission arm 8. The transmission arm 8 transmits the driving force of the lifting drive mechanism 6 and the rotating drive mechanism 7 to multiple transmission mechanisms 3 through the linkage frame 4. The transmission mechanism 3 enables the photovoltaic panel 1 to rotate in two directions.

[0034] Combined with Fig.11 and attached Fig.12As shown, the photovoltaic panel 1 includes a substrate 11, on which a plurality of photovoltaic sub-panels 12 are arranged, wherein the substrate 11 of one of the photovoltaic panels 1 is provided with a light chasing unit, the light chasing unit including a light chasing group 1 and a light chasing group 2, the light chasing group 1 is a photovoltaic sub-panel 2 13 and a photovoltaic sub-panel 3 14 arranged longitudinally, the light chasing group 1 is symmetrically arranged and both have an angle α with the longitudinal line of the substrate 11, the light chasing group 2 is a photovoltaic sub-panel 4 15 and a photovoltaic sub-panel 5 16 arranged transversely, the light chasing group 2 is symmetrically arranged and both have an angle β with the transverse line of the substrate 11, α and β are in the range of 10°~40°, and the photovoltaic sub-panel 12 located between the light chasing group 1 and the light chasing group 2 is flush with the top surface of the light chasing group.

[0035] Working principle of the light-chasing unit: Since the photovoltaic sub-panel 2 13 and the photovoltaic sub-panel 3 14 are tilted and arranged at opposite angles, when the sunlight is irradiated obliquely onto the photovoltaic sub-panel 2 13 and the photovoltaic sub-panel 3 14, the photovoltaic sub-panel 2 13 and the photovoltaic sub-panel 3 14 have different angles with the light, so that the power generation efficiency of the photovoltaic sub-panel 2 13 and the photovoltaic sub-panel 3 14 is different. The principles of the photovoltaic sub-panel 4 15 and the photovoltaic sub-panel 5 16 are the same. The light-chasing group 1 is used to distinguish the vertical solar angle difference, that is, the difference with the solar altitude. The light-chasing group 2 is used to distinguish the horizontal solar angle difference, that is, the difference with the east-west angle of the sun. The deviation direction of the photovoltaic panel 1 is obtained by the light-chasing unit, and the angle of the photovoltaic panel 1 is adjusted by the driving mechanism 5. When the light is vertically projected onto the photovoltaic panel 1, the angle between the light and the light-chasing group 1 and the light-chasing group 2 is the same, and the power generation efficiency is also the same. At this time, it is determined that the light-chasing is successful.

[0036] Combined with Figure 3 , Attachment Figure 4 and attached Figure 5 As shown, the bracket 2 includes a bottom plate 22, a vertical pole 21 is provided on the bottom plate 22, a support plate 25 is provided on the vertical pole 21, the photovoltaic panel 1 is provided on the support plate 25, the transmission mechanism 3 includes a ring platform 31, a double connecting arm 32, a transmission rod 33, a transmission shaft 34 and a transmission arm 35, the ring platform 31 is rotatably provided on the vertical pole 21, wing platforms 311 are provided on both sides of the ring platform 31, the double connecting arm 32 is hinged to the wing platform 311, a connecting rod 321 is provided on the double connecting arm 32, one end of the transmission rod 33 is hinged to the connecting rod 321, and the other end is hinged to the transmission shaft 3 4 is hinged, and both ends of the transmission shaft 34 are connected with two transmission arms 35 respectively. A support platform 23 is provided on the top of the vertical pole 21, a turntable 24 is rotatably provided on the support platform 23, a rotating shaft 241 is rotatably provided on the turntable 24, a connecting column 251 is provided on the rear side of the support plate 25, and the connecting column 251 is hinged with the turntable 24 through the rotating shaft 241, a connecting platform 351 connected with the rotating shaft 241 is provided at the end of the transmission arm 35, a slot 252 is provided on the connecting column 251, and a plug-in platform 352 plugged with the slot 252 is provided on the connecting platform 351.

[0037] Working principle of transmission mechanism 3: the axis points of rotating shaft 241, wing platform 311, connecting rod 321 and transmission shaft 34 form a parallelogram structure, and transmission rod 33 is parallel to the axis of vertical pole 21. When transmission rod 33 performs lifting action, double-linked arm rod 32 swings around the axis of wing platform 311, transmission arm rod 35 swings around the axis of rotating shaft 241, and transmission arm rod 35 drives support plate 25 to swing around the axis of rotating shaft 241, so that photovoltaic panel 1 rotates in vertical plane with rotating shaft 241 as the rotation axis. When transmission rod 33 swings around the axis of vertical pole 21, transmission rod 33 drives double-linked arm rod 32 and transmission arm rod 35, so that ring platform 31 and turntable 24 rotate, and turntable 24 drives support plate 25 to rotate, so that photovoltaic panel 1 rotates in horizontal plane with vertical pole 21 as the rotation axis.

[0038] Combined with Figure 6 and attached Figure 7 As shown, the linkage frame 4 includes two longitudinal trusses 41, a transverse truss 1 42, a transverse truss 2 43 and a transverse truss 3 44. The transverse truss 1 42, the transverse truss 2 43 and the transverse truss 3 44 are arranged in the middle position of the two longitudinal trusses 41 and are connected to the longitudinal trusses 41. A plurality of transmission bent rods 411 are provided on the longitudinal truss 41. The transverse truss 1 42, the transverse truss 2 43 and the transverse truss 3 44 are all provided with transmission straight rods 421. The transmission rod 33 is provided with a driving column 331. The ends of the transmission bent rod 411 and the transmission straight rod 421 are respectively hinged to the driving columns 331 of different transmission mechanisms 3.

[0039] Working principle of the linkage frame 4: the linkage frame 4 realizes lifting and lowering actions and horizontal rotation actions under the drive of the driving mechanism 5. When lifting, the transmission curved rod 411 and the transmission straight rod 421 on the linkage frame 4 simultaneously drive multiple transmission rods 33 to lift and lower. When rotating, the transmission curved rod 411 and the transmission straight rod 421 on the linkage frame 4 simultaneously drive multiple transmission rods 33 to rotate around the vertical rod 21, so that multiple photovoltaic panels 1 have consistency in angle adjustment.

[0040] Combined with Figure 7 and attached Figure 8 As shown, the transmission arm 8 includes a lifting and rotating driving cylinder 81, a driving arm 82 is provided on the outside of the driving cylinder 81, a slider 83 is slidably provided in the top slide groove of the driving arm 82, a transmission plate 441 is provided on the cross-linking truss 44, the bottom of the transmission plate 441 is rotatably connected to the slider 83, and the axial distance between the slider 83 and the driving cylinder 81 is equal to the axial distance between the vertical rod 21 and the driving column 331.

[0041] Working principle of transmission arm 8: The lifting and rotation of transmission arm 8 is realized by rotating connection between slider 83 and transmission plate 441 to realize lifting and rotation of linkage frame 4. When lifting, since transmission rod 33 is not lifted vertically, the lifting of transmission rod 33 will cause the distance between the axis of transmission rod 33 and the axis of vertical rod 21 to change, which will cause the linkage frame 4 to shift laterally when lifting. At this time, slider 83 slides in the top slide groove of driving arm 82, synchronously changing the distance between the axis of slider 83 and the axis of driving cylinder 81 to make it equal to the distance between the axis of transmission rod 33 and the axis of vertical rod 21.

[0042] Combined with Fig. 9 and attached Fig.10 As shown, the lifting drive mechanism 6 includes a motor 61, a threaded column 64 and a lifting tube 65. A gear 62 is provided at the output end of the motor 61, a gear 2 63 meshing with the gear 62 is provided at the bottom of the threaded column 64, a threaded hole matching with the threaded column 64 is provided at the bottom of the lifting tube 65, a rotating block 66 rotatably matched with the driving cylinder 81 is provided at the top, a limit platform 651 is provided on the outer side of the lifting tube 65, and a through hole matching with the limit platform 651 is provided on the driving box 51.

[0043] Working principle of the lifting drive mechanism 6: Motor 1 61 drives gear 1 62 to rotate, and through the meshing transmission of gear 1 62 and gear 2 63, the threaded column 64 rotates, and the threaded column 64 cooperates with the threaded hole inside the lifting tube 65 to drive the lifting tube 65 to perform a lifting action. At this time, the limit platform 651 slides with the through hole on the drive box 51 to prevent the lifting tube 65 from rotating. The lifting tube 65 drives the driving cylinder 81 to rise and fall through the rotating block 66.

[0044] Combined with Figure 8 , Attachment Fig. 9 and attached Fig.10 As shown, the rotation drive mechanism 7 includes a motor 2 71, a spline shaft 74, a gear 5 75 and a retaining table 76. A gear 3 72 is provided at the output end of the motor 2 71, a gear 4 73 meshing with the gear 3 72 is provided at the bottom of the spline shaft 74, a fixing plate 52 rotatably matched with the top of the spline shaft 74 is provided on the drive box 51, a spline groove 751 matching with the spline shaft 74 is provided on the inner side of the gear 5 75, the gear 5 75 is rotatably provided on the retaining table 76, the retaining table 76 is rotatably matched with the driving cylinder 81, and the driving cylinder 81 is provided with a gear ring 84 meshing with the gear 5 75.

[0045] Working principle of the rotating drive mechanism 7: Motor 2 71 drives gear 3 72 to rotate, and gear 3 72 is meshed with gear 4 73 to rotate the spline shaft 74, and the spline shaft 74 cooperates with the spline groove 751 to drive gear 5 75 to rotate, and gear 5 75 is meshed with the gear ring 84 to drive the drive cylinder 81 to rotate. When the drive cylinder 81 is raised or lowered, the retaining platform 76 is used to keep gear 5 75 always in meshing state with the gear ring 84.

[0046] In the specific implementation of the present invention, the deviation orientation of the photovoltaic panel 1 is obtained through the light chasing unit, and the transmission arm 8 is driven to rise and fall and rotate through the lifting drive mechanism 6 and the rotating drive mechanism 7, thereby lifting and rotating the linkage frame 4, and the linkage frame 4 is driven to rise and fall and rotate through the structural design of the transmission mechanism 3 and the bracket 2, so that the linkage frame 4 drives the photovoltaic panel 1 to rotate on the horizontal plane and the vertical plane through the transmission mechanism 3, thereby realizing the angle adjustment of the photovoltaic panel 1, so that the light is vertically projected to the photovoltaic panel 1, thereby maximizing the power generation efficiency of the photovoltaic panel 1.

[0047] Embodiment 1:

[0048] Combined with Fig.11 , Attachment Fig.12 and attached Fig.13 As shown, it includes a light chasing unit, a detection unit, a judgment unit and a control unit. The positive and negative electrodes of the photovoltaic sub-panel two 13 of the light chasing group one are respectively connected to the negative and positive electrodes of the photovoltaic sub-panel three 14 to form a group of pole paths a and pole paths b. The positive and negative electrodes of the photovoltaic sub-panel four 15 of the light chasing group two are respectively connected to the negative and positive electrodes of the photovoltaic sub-panel five 16 to form another group of pole paths a and pole paths b. The two groups of circuits are connected to the detection unit. The detection unit detects the voltage between the pole paths a and the pole paths b. After reaching the threshold, the judgment unit judges the polarity of the two groups of circuits. The circuit polarity is determined by the power generation of the light chasing group one and the light chasing group two. According to the circuit polarity, the control unit drives the motor one 61 or the motor two 71 to rotate forward or reverse, and drives the photovoltaic panel 1 to rotate on the horizontal plane and the vertical plane.

[0049] A light chasing method comprises the following steps: S1: The light-chasing group 1 and the light-chasing group 2 of the light-chasing unit absorb solar energy to generate electricity, and the power generation of the inclined photovoltaic sub-panel 2 13 and the photovoltaic sub-panel 3 14, the photovoltaic sub-panel 4 15 and the photovoltaic sub-panel 5 16 is different; S2: The two groups of pole paths a and pole paths b of the output circuit of the light chasing unit generate potential differences respectively, and the detection unit detects the voltage magnitudes of the two paths respectively; S3: The judgment unit judges the polarity of the two circuits respectively. When the polarity of the polarity of the polarity a is positive and the polarity of the polarity b is negative, the judgment unit generates a positive signal, otherwise it generates a negative signal, and transmits the signal to the control unit; S4: After receiving the signal, the control unit drives the motor 1 61 and the motor 2 71 to rotate respectively. The positive signal drives the motor 1 61 and the motor 2 71 to rotate forward, and the negative signal drives the motor 1 61 and the motor 2 71 to rotate reversely. S5: The forward rotation of motor 1 61 will cause the photovoltaic panel 1 to rotate upward in the vertical plane, and vice versa, it will cause the photovoltaic panel 1 to rotate downward in the vertical plane. The forward rotation of motor 2 71 will cause the photovoltaic panel 1 to rotate eastward in the horizontal plane, and vice versa, it will cause the photovoltaic panel 1 to rotate westward in the horizontal plane.

[0050] Embodiment 2:

[0051] Combined with Fig.11 , Attachment Fig.14 and attached Fig.15 As shown, it includes a light chasing unit, a detection unit, a judgment unit and a control unit. The positive pole of the photovoltaic sub-panel 2 13 and the photovoltaic sub-panel 4 15 is the pole path c, and the negative pole is the pole path d. The positive pole of the photovoltaic sub-panel 3 14 and the photovoltaic sub-panel 5 16 is the pole path f, and the negative pole is the pole path e. The detection unit detects the voltage between the two groups of pole paths c and pole paths d and the voltage between the two groups of pole paths f and pole paths e. The judgment unit judges the difference and size between the two voltages. When the difference reaches a threshold, the size of the two voltages is compared. If the voltages of the two groups are equal, cd >U fe , the control unit drives the motor 1 61 and the motor 2 71 to rotate forward, otherwise the control unit drives the motor 1 61 and the motor 2 71 to rotate reversely.

[0052] A light chasing method comprises the following steps: S1: the first light-chasing group of the light-chasing unit absorbs solar energy to generate electricity, and the power generation of the second photovoltaic sub-panel 13 and the third photovoltaic sub-panel 14 installed obliquely produces a difference; S2: The pole paths c and d, as well as the pole paths f and e of the output circuit of the light chasing unit generate a potential difference, and the detection unit detects the voltage of the two pole paths; S3: The judgment unit judges the difference and size of the two voltages. When the difference reaches the threshold, the voltage size is compared. If U cd >U fe , generates a positive signal if U cd <U fe , and negative signal, and transmit the resulting signal to the control unit; S4: The control unit receives a signal, a positive signal drives the motor 1 61 and the motor 2 71 to rotate forward, and a negative signal drives the motor 1 61 and the motor 2 71 to rotate reversely; S5: The forward rotation of motor 1 61 will cause the photovoltaic panel 1 to rotate upward in the vertical plane, and vice versa, it will cause the photovoltaic panel 1 to rotate downward in the vertical plane. The forward rotation of motor 2 71 will cause the photovoltaic panel 1 to rotate eastward in the horizontal plane, and vice versa, it will cause the photovoltaic panel 1 to rotate westward in the horizontal plane.

[0053] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A self-tracing new energy photovoltaic power generation system, comprising a plurality of photovoltaic panels (1) and brackets (2), wherein the brackets (2) are arranged in an array, the brackets (2) comprising a bottom plate (22), a vertical pole (21) being arranged on the bottom plate (22), a support plate (25) being arranged on the vertical pole (21), and the photovoltaic panels (1) being arranged on the support plate (25), characterized in that: The photovoltaic panel (1) comprises a substrate (11), on which a plurality of photovoltaic sub-panels 1 (12) are arranged, wherein the substrate (11) of one of the photovoltaic panels (1) is provided with a light-chasing unit, the light-chasing unit comprising a light-chasing group 1 and a light-chasing group 2, the light-chasing group 1 comprising a photovoltaic sub-panel 2 (13) and a photovoltaic sub-panel 3 (14) arranged longitudinally, the light-chasing group 1 being symmetrically arranged and both having an angle α with the longitudinal line of the substrate (11), the light-chasing group 2 comprising a photovoltaic sub-panel 4 (15) and a photovoltaic sub-panel 5 (16) arranged transversely, the light-chasing group 2 being symmetrically arranged and both having an angle β with the transverse line of the substrate (11), and α and β being in the range of 10° to 40°; A support platform (23) is provided on the top of the vertical pole (21), a turntable (24) is rotatably provided on the support platform (23), and a support plate (25) is hingedly connected to the turntable (24); The device also includes a driving mechanism (5), wherein the driving mechanism (5) includes a lifting driving mechanism (6) and a rotating driving mechanism (7), wherein the lifting driving mechanism (6) includes a motor 1 (61) for driving the photovoltaic panel (1) to rotate in a vertical plane, and the rotating driving mechanism (7) includes a motor 2 (71) for driving the photovoltaic panel (1) to rotate in a horizontal plane.

2. The self-tracing new energy photovoltaic power generation system according to claim 1, characterized in that: The invention also comprises a transmission mechanism (3) and a linkage frame (4); the driving mechanism (5) further comprises a driving box (51) and a transmission arm (8); the lifting driving mechanism (6) and the rotating driving mechanism (7) are arranged in the driving box (51); the lifting driving mechanism (6) and the rotating driving mechanism (7) respectively drive the transmission arm (8) to achieve lifting and rotating movements; the linkage frame (4) cooperates with the transmission mechanism (3) and the transmission arm (8); the transmission arm (8) transmits the driving force of the lifting driving mechanism (6) and the rotating driving mechanism (7) to the plurality of transmission mechanisms (3) through the linkage frame (4); the transmission mechanism (3) drives the support plate (25) to move, so that the photovoltaic panel (1) can achieve rotation in two directions.

3. The self-tracing new energy photovoltaic power generation system according to claim 2 is characterized in that: The transmission mechanism (3) comprises a ring platform (31), a double-linked arm (32), a transmission rod (33), a transmission shaft (34) and a transmission arm (35); the ring platform (31) is rotatably arranged on the vertical rod (21); the double-linked arm (32) is hinged to the ring platform (31); one end of the transmission rod (33) is hinged to the double-linked arm (32) and the other end is hinged to the transmission shaft (34); both ends of the transmission shaft (34) are respectively connected to two transmission arms (35); a rotating shaft (241) is rotatably arranged on the turntable (24); a connecting column (251) is arranged on the rear side of the support plate (25); the connecting column (251) is hinged to the turntable (24) via the rotating shaft (241); and the end of the transmission arm (35) is connected to the rotating shaft (241) and the connecting column (251).

4. The self-tracing new energy photovoltaic power generation system according to claim 3 is characterized in that: The linkage frame (4) comprises two longitudinal trusses (41), a transverse truss 1 (42), a transverse truss 2 (43) and a transverse truss 3 (44); the transverse truss 1 (42), the transverse truss 2 (43) and the transverse truss 3 (44) are arranged between the two longitudinal trusses (41) and connected to the longitudinal trusses (41); a plurality of transmission bent rods (411) are arranged on the longitudinal trusses (41); the transverse truss 1 (42), the transverse truss 2 (43) and the transverse truss 3 (44) are all provided with transmission straight rods (421); the transmission rods (33) are provided with driving columns (331); the ends of the transmission bent rods (411) and the transmission straight rods (421) are respectively hinged to the driving columns (331) of different transmission mechanisms (3).

5. The self-tracing new energy photovoltaic power generation system according to claim 3 is characterized in that: The transmission arm (8) comprises a lifting and rotating driving cylinder (81), a driving arm (82) is arranged outside the driving cylinder (81), a sliding block (83) is slidably arranged in a sliding groove at the top of the driving arm (82), the top of the sliding block (83) is rotatably connected to the linkage frame (4), and the axial distance between the sliding block (83) and the driving cylinder (81) is equal to the axial distance between the vertical rod (21) and the transmission rod (33).

6. The self-tracing new energy photovoltaic power generation system according to claim 5, characterized in that: The lifting drive mechanism (6) comprises a motor 1 (61), a threaded column (64) and a lifting tube (65); the motor 1 (61) and the threaded column (64) are matched through gear transmission; a threaded hole matching the threaded column (64) is provided at the bottom of the lifting tube (65); a rotating block (66) matching the driving cylinder (81) is provided at the top; a limit platform (651) is provided on the outside of the lifting tube (65); and a through hole matching the limit platform (651) is provided on the driving box (51).

7. The self-tracing new energy photovoltaic power generation system according to claim 5, characterized in that: The rotation drive mechanism (7) comprises a second motor (71), a spline shaft (74), a fifth gear (75) and a retaining platform (76); the second motor (71) and the spline shaft (74) are matched through gear transmission; a spline groove (751) matching the spline shaft (74) is provided on the inner side of the fifth gear (75); the fifth gear (75) is rotatably arranged on the retaining platform (76); the retaining platform (76) and the driving cylinder (81) are rotatably matched; and the driving cylinder (81) is provided with a toothed ring (84) meshing with the fifth gear (75).

8. The self-tracing new energy photovoltaic power generation system according to any one of claims 1 to 7, characterized in that: The device also includes a detection unit, a judgment unit and a control unit. The positive and negative electrodes of the photovoltaic sub-panel two (13) of the light chasing group one are respectively connected to the negative and positive electrodes of the photovoltaic sub-panel three (14) to form a set of pole paths a and pole paths b. The positive and negative electrodes of the photovoltaic sub-panel four (15) of the light chasing group two are respectively connected to the negative and positive electrodes of the photovoltaic sub-panel five (16) to form another set of pole paths a and pole paths b. The two sets of circuits are connected to the detection unit. The detection unit detects the voltage between the pole paths a and the pole paths b. After reaching a threshold, the judgment unit judges the polarity of the two sets of circuits. The circuit polarity is determined by the power generation of the light chasing group one and the light chasing group two. According to the circuit polarity, the control unit drives the motor one (61) or the motor two (71) to rotate forward or reverse, thereby driving the photovoltaic panel (1) to rotate on the horizontal plane or the vertical plane.

9. A light-chasing method based on the self-chasing new energy photovoltaic power generation system according to claim 8, characterized in that: The steps include: S1: The light-chasing group 1 and the light-chasing group 2 of the light-chasing unit absorb solar energy to generate electricity, and the power generation of the inclined photovoltaic sub-panel 2 (13) and photovoltaic sub-panel 3 (14), photovoltaic sub-panel 4 (15) and photovoltaic sub-panel 5 (16) is different; S2: The two groups of pole paths a and pole paths b of the output circuit of the light chasing unit generate potential differences respectively, and the detection unit detects the voltage magnitudes of the two paths respectively; S3: The judgment unit judges the polarity of the two circuits respectively. When the polarity of the polarity of the polarity a is positive and the polarity of the polarity b is negative, the judgment unit generates a positive signal, otherwise it generates a negative signal, and transmits the signal to the control unit; S4: After receiving the signal, the control unit drives the motor 1 (61) and the motor 2 (71) to rotate respectively. The positive signal drives the motor 1 (61) and the motor 2 (71) to rotate forward, and the negative signal drives the motor 1 (61) and the motor 2 (71) to rotate reversely. S5: The forward rotation of the motor 1 (61) causes the photovoltaic panel (1) to rotate upward in the vertical plane, and the reverse rotation causes the photovoltaic panel (1) to rotate downward in the vertical plane. The forward rotation of the motor 2 (71) causes the photovoltaic panel (1) to rotate eastward in the horizontal plane, and the reverse rotation causes the photovoltaic panel (1) to rotate westward in the horizontal plane.

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