CN115276557B - Distributed photovoltaic measurement device capable of being connected into power grid and application method thereof - Google Patents
Distributed photovoltaic measurement device capable of being connected into power grid and application method thereof Download PDFInfo
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- CN115276557B CN115276557B CN202210729785.0A CN202210729785A CN115276557B CN 115276557 B CN115276557 B CN 115276557B CN 202210729785 A CN202210729785 A CN 202210729785A CN 115276557 B CN115276557 B CN 115276557B
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- 238000005070 sampling Methods 0.000 claims abstract description 17
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a distributed photovoltaic measurement device capable of being connected with a power grid and a use method thereof, wherein the distributed photovoltaic measurement device comprises a detection photovoltaic panel assembly and a plurality of power generation photovoltaic panel assemblies; the detection photovoltaic panel assembly comprises a current sampling module, an MCU module, a correction photovoltaic assembly and a base frame, wherein the correction photovoltaic assembly is rotationally connected with the base frame through a rotating shaft, a driving motor for driving the rotating shaft to rotate is arranged on the base frame, and a first angle sensor for detecting the inclination angle of the correction photovoltaic assembly is arranged on the base frame; the driving motor and the first angle sensor are electrically connected with the MCU module, and the detection photovoltaic panel assembly and the plurality of power generation photovoltaic panel assemblies are arranged, wherein the optimal inclination angle of the power generation efficiency at the moment is obtained through detection of the detection photovoltaic panel assembly, and then the plurality of power generation photovoltaic panel assemblies are adjusted to the optimal inclination angle obtained through detection of the photovoltaic panel assembly, so that the plurality of power generation photovoltaic panel assemblies are guaranteed to have the maximum power generation efficiency.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a distributed photovoltaic measurement device capable of being connected with a power grid and a use method thereof.
Background
With the proposal of the concepts of carbon peak and carbon neutralization, the new energy power generation requirement is increased. To cope with the climate and environment problems such as global warming, the country is greatly encouraged and supporting the development of new energy power generation facilities. The new energy forms include wind, solar energy, geothermal energy and the like. The solar power generation, namely the photovoltaic power generation, is widely popularized due to the fact that the light resources are rich, the manufacturing cost is low, the construction period is short, and the operation and maintenance are simple. The photovoltaic power station mainly comprises three parts of a photovoltaic panel, an inverter and a bracket, corresponding auxiliary power generation equipment, a transformer substation, a sending-out line and the like. The photovoltaic module power is improved, the flat single-shaft support is used for improving the generated energy, the electricity generation cost is reduced, the flat single-shaft support is an important subject of the photovoltaic field research, and the flat single-shaft support is also engineering practice of positive pursuing and pushing of each investor, enterprise and manufacturer.
The improvement of the power of the photovoltaic module is a primary technical means for improving the generated energy and reducing the land area. In the beginning of 2021, each large photovoltaic manufacturer pushes out a larger power component, which can reach 670W at maximum. But the pushing out of high power components, the mating technology is not perfect. The engineering practice application power is still mainly 450-530W. The application of the flat single-shaft support tracks the movement track of the sun and obviously improves the generated energy. The current tracking technology is relatively simple, and mainly aims at designing tracking tracks at system timing. The tracking technology cannot maintain the optimal angle between the photovoltaic panel and the direct solar point, cannot solve the shielding problem, and cannot sufficiently improve the generated energy. Therefore, we make improvements to this and propose a distributed photovoltaic measurement device that can be connected to the grid.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a distributed photovoltaic measurement device capable of being connected with a power grid, which comprises a detection photovoltaic panel assembly and a plurality of power generation photovoltaic panel assemblies; the detection photovoltaic panel assembly comprises a current sampling module, an MCU module, a correction photovoltaic assembly and a base frame, wherein the correction photovoltaic assembly is rotationally connected with the base frame through a rotating shaft, a driving motor for driving the rotating shaft to rotate is arranged on the base frame, and a first angle sensor for detecting the inclination angle of the correction photovoltaic assembly is arranged on the base frame; the driving motor and the first angle sensor are electrically connected with the MCU module;
the power generation photovoltaic panel assembly comprises a pair of brackets, the top end of each bracket is rotatably connected with a rotating transverse frame which turns up and down through a rotating shaft, a connecting transverse rod is arranged between the rotating transverse frames, a power generation photovoltaic panel is arranged between the connecting transverse rods, an electric turning mechanism for driving the rotating transverse frames to turn over is arranged on each bracket, and a second angle sensor for detecting the rotating angle of the rotating shaft is arranged on each bracket;
the correction photovoltaic module is driven by the driving motor to reciprocate by one circumference, the current sampling module is used for detecting the current of the direct current of the correction photovoltaic module generated by the correction photovoltaic module, the MCU module is used for processing the current to obtain a real-time current value, and the first angle sensor is used for detecting the real-time rotation angle of the correction photovoltaic module; comparing the real-time current value of the current sampling module to obtain a maximum value, and obtaining a corrected photovoltaic module inclination angle value detected by the first angle sensor when the real-time current value is the maximum value;
the intelligent power generation device comprises a power generation photovoltaic panel, an MCU module, an electric turnover mechanism, a second angle sensor, a central controller, a power generation photovoltaic panel and an electric turnover mechanism, wherein the power generation photovoltaic panel is connected with the power generation photovoltaic panel, the MCU module, the electric turnover mechanism and the second angle sensor are connected with the central controller, the inclination angle value of the power generation photovoltaic panel is transmitted to the central controller when the obtained real-time current value is the maximum value through the MCU module, the central controller controls the electric turnover mechanism to rotate and adjust a rotating transverse frame, the inclination angle of the power generation photovoltaic panel is detected in rotation of the rotating shaft through the second angle sensor, and the electric turnover mechanism stops working until the inclination angle value of the power generation photovoltaic panel is detected by the second angle sensor to be consistent with the inclination angle value of the power generation photovoltaic module when the real-time current value is the maximum value.
As a preferable technical scheme of the invention, a torque sensor for detecting the rotating shaft is arranged on the rotating shaft, the torque sensor is electrically connected with the MCU module, when the torque sensor detects that the torque value of the rotating shaft reaches a set warning torque value, the driving motor drives the rotating shaft to rotate and further drives the correcting photovoltaic module to rotate so as to change the inclination angle of the correcting photovoltaic module, if the torque sensor detects that the torque value of the rotating shaft is in an increasing trend in the rotating process, the driving motor reversely rotates, so that the torque value of the rotating shaft detected by the torque sensor is in an increasing and decreasing trend, until the torque value of the rotating shaft detected by the torque sensor reaches a set standard torque value, the driving motor stops moving, and simultaneously, the first angle sensor is utilized to record the rotating angle of the correcting photovoltaic module at the moment,
and the central controller controls the electric turnover mechanism to rotate and adjust the rotating transverse frame, and detects the inclination angle of the power generation photovoltaic panel in the rotation of the rotating shaft through the second angle sensor until the inclination angle value of the power generation photovoltaic panel detected by the second angle sensor is consistent with the inclination angle value of the correction photovoltaic module detected by the first angle sensor, and then the electric turnover mechanism stops working.
As a preferable technical scheme of the invention, the electric turnover mechanism comprises an arc-shaped frame arranged on a rotary transverse frame, an arc-shaped gear ring is arranged on the arc-shaped edge of the arc-shaped frame, a transmission gear meshed with the arc-shaped gear ring for transmission is arranged on the bracket, a servo motor used for driving the transmission gear to rotate is arranged on the bracket, an output shaft of the servo motor is in transmission connection with the transmission gear through a speed reducer, and the servo motor is electrically connected with a central controller.
As a preferable technical scheme of the invention, the electric turnover mechanism comprises an arc-shaped frame arranged on a rotary transverse frame, an arc-shaped gear ring is arranged on the arc-shaped edge of the arc-shaped frame, a transmission gear meshed with the arc-shaped gear ring for transmission is arranged on the bracket, a servo motor used for driving the transmission gear to rotate is arranged on the bracket, an output shaft of the servo motor is in transmission connection with the transmission gear through a speed reducer, and the servo motor is electrically connected with a central controller.
As a preferable technical scheme of the invention, the power generation photovoltaic plates are provided with a plurality of connecting cross bars through a folding storage mechanism, the folding storage mechanism comprises a positioning plate which is arranged on the connecting cross bars and is parallel to the connecting cross bars, a sliding cavity is arranged on the positioning plate, a connecting shaft is arranged at the side end of the power generation photovoltaic plate, a sliding block which slides along the sliding cavity is arranged at the end part of the connecting shaft through a bearing, a worm wheel is arranged at the shaft end of the connecting shaft, a spline shaft is arranged in the sliding cavity, a plurality of worms which slide along the spline shaft are arranged on the spline shaft, a fixing frame is arranged on the sliding block, the worms are rotationally connected with the fixing frame through bearings, and the worms are matched with the worm wheel; the connecting cross rod is provided with a driving mechanism for driving the spline shaft to rotate, and a sliding block at the outermost side of one end is fixed with the sliding cavity.
As a preferable technical scheme of the invention, the driving mechanism comprises a transmission gear arranged at the shaft end of the spline shaft, the connecting cross rod is provided with a linear sliding plate, the linear sliding plate is provided with a straight tooth bar meshed with the transmission gear, and the linear sliding plate is pushed by the electric push rod in a linear manner.
As a preferable technical scheme of the invention, the power generation photovoltaic panels are folded together through a folding mechanism, the folding mechanism comprises connecting rods hinged on sliding blocks, a positioning block is arranged between the connecting rods between two adjacent sliding blocks, a telescopic push rod is arranged on the connecting cross rod, a lifting slide rod is arranged between the end parts of the two telescopic push rods, and a sliding sleeve along the lifting slide rod is fixed on the positioning block.
As a preferable technical scheme of the invention, buffer strips are arranged on the side edges of the two sides of the power generation photovoltaic panel.
According to the application method of the distributed photovoltaic measurement device capable of being connected with the power grid, the driving motor drives the correcting photovoltaic module to do reciprocating rotation by one circle, the current sampling module is used for detecting the current of direct current of the correcting photovoltaic module generated by the correcting photovoltaic module, the MCU module is used for processing the current to obtain a real-time current value, and the first angle sensor is used for detecting the real-time rotation angle of the correcting photovoltaic module; comparing the real-time current value of the current sampling module to obtain a maximum value, and obtaining a corrected photovoltaic module inclination angle value detected by the first angle sensor when the real-time current value is the maximum value;
transmitting the inclination angle value of the correcting photovoltaic module to a central controller when the obtained real-time current value is the maximum value through the MCU module, controlling an electric turnover mechanism to rotate and adjust a rotating transverse frame by the central controller, detecting the inclination angle of a power generation photovoltaic panel in the rotation of the rotating shaft through a second angle sensor, and stopping working of the electric turnover mechanism when the inclination angle value of the power generation photovoltaic panel detected by the second angle sensor is consistent with the inclination angle value of the correcting photovoltaic module when the real-time current value is the maximum value;
when the torque sensor detects that the torque value of the rotating shaft reaches the set warning torque value, the driving motor drives the rotating shaft to rotate and further drives the correcting photovoltaic module to rotate so as to change the inclination angle of the correcting photovoltaic module, if the torque value of the rotating shaft detected by the torque sensor is in a growing trend in the rotating process, the driving motor reversely rotates, so that the torque value of the rotating shaft detected by the torque sensor is in a descending trend, until the torque value of the rotating shaft detected by the torque sensor reaches the set standard torque value, the driving motor stops moving, and the rotating angle of the correcting photovoltaic module at the moment is recorded by the first angle sensor,
the central controller controls the electric turnover mechanism to rotate and adjust the rotating transverse frame, and detects the inclination angle of the power generation photovoltaic panel in the rotation of the rotating shaft through the second angle sensor until the inclination angle value of the power generation photovoltaic panel detected by the second angle sensor is consistent with the inclination angle value of the correction photovoltaic module detected by the first angle sensor, and the electric turnover mechanism stops working;
when folding and accomodating the photovoltaic board in bad weather, drive the integral key shaft through actuating mechanism and rotate, then the integral key shaft drives the worm and rotates, the worm drives the worm wheel and rotates, then the worm wheel drives the photovoltaic board that generates electricity and rotates, rotate the photovoltaic board that generates electricity to vertical state, then fold the photovoltaic board that generates electricity of vertical state together through coincide mechanism, drive through flexible push rod and drive the lift slide bar and remove, then the lift slide bar changes the connecting rod contained angle between two adjacent sliders with sliding sleeve downward movement, make two adjacent sliders draw together, thereby fold the photovoltaic board that generates electricity with vertical state together, avoid causing the damage at bad weather to the photovoltaic board.
The beneficial effects of the invention are as follows:
this kind of distributed photovoltaic measuring device that can insert electric wire netting detects photovoltaic board subassembly and a plurality of electricity generation photovoltaic board subassembly through setting up, wherein detects through detecting photovoltaic board subassembly and obtains the best inclination of this moment generating efficiency, then a plurality of electricity generation photovoltaic board subassembly adjusts the best inclination that obtains to detecting photovoltaic board subassembly to guarantee that a plurality of electricity generation photovoltaic board subassembly has the biggest generating efficiency.
When the detection photovoltaic panel assembly is used for measuring the generated power, the driving motor drives the correction photovoltaic assembly to reciprocate by one circumference, the current sampling module is used for detecting the current of the direct current of the correction photovoltaic assembly generated by the correction photovoltaic assembly, the MCU module is used for processing the current to obtain a real-time current value, and the first angle sensor is used for detecting the real-time rotation angle of the correction photovoltaic assembly; comparing the real-time current value of the current sampling module to obtain a maximum value, and obtaining a corrected photovoltaic module inclination angle value detected by the first angle sensor when the real-time current value is the maximum value;
transmitting the inclination angle value of the correcting photovoltaic module to a central controller when the obtained real-time current value is the maximum value through the MCU module, controlling an electric turnover mechanism to rotate and adjust a rotating transverse frame by the central controller, detecting the inclination angle of a power generation photovoltaic panel in the rotation of the rotating shaft through a second angle sensor, and stopping working of the electric turnover mechanism when the inclination angle value of the power generation photovoltaic panel detected by the second angle sensor is consistent with the inclination angle value of the correcting photovoltaic module when the real-time current value is the maximum value; the plurality of power generation photovoltaic panel assemblies are adjusted to the optimal inclination angle obtained by detecting the photovoltaic panel assemblies, so that the plurality of power generation photovoltaic panel assemblies are guaranteed to have the maximum power generation efficiency.
When the torque sensor detects that the torque value of the rotating shaft reaches the set warning torque value, the driving motor drives the rotating shaft to rotate and then drives the correcting photovoltaic module to rotate so as to change the inclination angle of the correcting photovoltaic module, if the torque value of the rotating shaft detected by the torque sensor is in a growing trend in the rotating process, the driving motor reversely rotates, the torque value of the rotating shaft detected by the torque sensor is in a descending trend, and the driving motor stops moving until the torque value of the rotating shaft detected by the torque sensor reaches the set standard torque value, and simultaneously the rotating angle of the correcting photovoltaic module at the moment is recorded by the first angle sensor, wind resistance detected by the detecting photovoltaic module is detected by the torque sensor, and the angle of the correcting photovoltaic module is adjusted so as to play a role in reducing wind resistance.
The central controller controls the electric turnover mechanism to rotate and adjust the rotating transverse frame, and detects the inclination angle of the power generation photovoltaic panel in the rotation of the rotating shaft through the second angle sensor until the inclination angle value of the power generation photovoltaic panel detected by the second angle sensor is consistent with the inclination angle value of the correction photovoltaic module detected by the first angle sensor, and the electric turnover mechanism stops working; in the windy weather, the wind resistance of the power generation photovoltaic panel assembly is prevented from being too large, and the power generation photovoltaic panel assembly is easy to damage.
When folding and accomodating the photovoltaic board in bad weather, drive the integral key shaft through actuating mechanism and rotate, then the integral key shaft drives the worm and rotates, the worm drives the worm wheel and rotates, then the worm wheel drives the photovoltaic board that generates electricity and rotates, rotate the photovoltaic board that generates electricity to vertical state, then fold the photovoltaic board that generates electricity of vertical state together through coincide mechanism, drive through flexible push rod and drive the lift slide bar and remove, then the lift slide bar changes the connecting rod contained angle between two adjacent sliders with sliding sleeve downward movement, make two adjacent sliders draw together, thereby fold the photovoltaic board that generates electricity with vertical state together, avoid causing the damage at bad weather to the photovoltaic board.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a distributed photovoltaic measurement apparatus of the present invention that is grid-accessible;
FIG. 2 is a block diagram of a grid-accessible distributed photovoltaic measurement apparatus of the present invention;
FIG. 3 is a schematic diagram of a structure of a photovoltaic panel module of the distributed photovoltaic measurement apparatus of the present invention that can be connected to a power grid;
FIG. 4 is a schematic diagram of an electric turnover mechanism of a distributed photovoltaic measurement device capable of being connected to a power grid;
FIG. 5 is a vertical view of a power generation photovoltaic panel of a grid-accessible distributed photovoltaic measurement apparatus of the present invention;
FIG. 6 is a schematic diagram of a superposition mechanism of a grid-accessible distributed photovoltaic measurement apparatus according to the present invention;
FIG. 7 is a schematic view of the structure of a telescopic push rod of a distributed photovoltaic measurement device capable of being connected to a power grid;
FIG. 8 is a schematic view of the installation of a locating plate of a grid-accessible distributed photovoltaic measurement apparatus of the present invention;
fig. 9 is a block diagram of a straight rack of a distributed photovoltaic measurement apparatus that can be connected to a power grid according to the present invention: 1. detecting a photovoltaic panel assembly; 2. a current sampling module; 3. an MCU module; 4. correcting the photovoltaic module; 5. a base frame; 6. a rotating shaft; 7. a driving motor; 8. a first angle sensor; 9. generating a photovoltaic panel assembly; 10. a bracket; 11. a rotation shaft; 12. rotating the transverse frame; 13. connecting the cross bars; 14. generating a photovoltaic panel; 15. an electric turnover mechanism; 16. a second angle sensor; 17. a central controller; 18. a torque sensor; 19. an arc-shaped frame; 20. an arc gear ring; 21. a transmission gear; 22. a servo motor; 23. a positioning plate; 24. a sliding cavity; 25. a connecting shaft; 26. a slide block; 27. a worm wheel; 28. a spline shaft; 29. a worm; 30. a fixing frame; 32. a connecting rod; 33. a positioning block; 34. a telescopic push rod; 35. lifting the slide bar; 36. a sliding sleeve; 37. a transmission gear; 38. a linear slide plate; 39. a straight rack; 40. an electric push rod.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in fig. 1-9, the distributed photovoltaic measurement device capable of being connected to a power grid comprises a detection photovoltaic panel assembly 1 and a plurality of power generation photovoltaic panel assemblies 9; the detection photovoltaic panel assembly 1 comprises a current sampling module 2, an MCU module 3, a correction photovoltaic assembly 4 and a base frame 5, wherein the correction photovoltaic assembly 4 is rotationally connected with the base frame 5 through a rotating shaft 6, a driving motor 7 for driving the rotating shaft 6 to rotate is arranged on the base frame 5, and a first angle sensor 8 for detecting the inclination angle of the correction photovoltaic assembly 4 is arranged on the base frame 5; the driving motor 7 and the first angle sensor 8 are electrically connected with the MCU module 3; the method comprises the steps of carrying out a first treatment on the surface of the
The power generation photovoltaic panel assembly 9 comprises a pair of brackets 10, wherein the top end of each bracket 10 is rotatably connected with a rotating transverse frame 12 which turns up and down through a rotating shaft 11, a connecting transverse rod 13 is arranged between the rotating transverse frames 12, a power generation photovoltaic panel 14 is arranged between the connecting transverse rods 13, an electric turning mechanism 15 for driving the rotating transverse frames 13 to turn over is arranged on each bracket 10, and a second angle sensor 16 for detecting the rotating angle of the rotating shaft 11 is arranged on each bracket 10;
the correcting photovoltaic module 4 is driven to reciprocate by a circle through the driving motor 7, the current sampling module 2 is used for detecting the current of the direct current of the correcting photovoltaic module 4, the real-time current value is obtained through the processing of the MCU module 3, and the real-time rotation angle of the correcting photovoltaic module 4 is detected through the first angle sensor 8; comparing the real-time current value of the current sampling module 2 to obtain a maximum value, and obtaining the inclination angle value of the corrected photovoltaic module 4 detected by the first angle sensor 8 when the real-time current value is the maximum value;
the central controller 17 is further included, the MCU module 3, the electric turnover mechanism 15 and the second angle sensor 16 are all connected with the central controller 17, the inclination angle value of the photovoltaic module 4 is transmitted to the central controller 17 when the obtained real-time current value is the maximum value through the MCU module 3, the central controller 17 controls the electric turnover mechanism 15 to rotate and adjust the rotating cross frame 12, the inclination angle of the power generation photovoltaic panel 14 in rotation of the rotating shaft 11 is detected through the second angle sensor 16, and the electric turnover mechanism 15 stops working when the inclination angle value of the power generation photovoltaic panel 14 detected by the second angle sensor 16 is consistent with the inclination angle value of the photovoltaic module 4 when the real-time current value is the maximum value.
The rotating shaft 6 is provided with a torque sensor 18 for detecting the rotating shaft 6, the torque sensor 18 is electrically connected with the MCU module, when the torque sensor 18 detects that the torque value of the rotating shaft 6 reaches the set warning torque value, the driving motor 7 drives the rotating shaft 6 to rotate and further drives the correcting photovoltaic module 4 to rotate so as to change the inclination angle of the correcting photovoltaic module 4, if the torque sensor 18 detects that the torque value of the rotating shaft 6 is in an increasing trend in the rotating process, the driving motor 7 reversely rotates, the torque sensor 18 detects that the torque value of the rotating shaft 6 is in an increasing and decreasing trend until the torque value of the rotating shaft 6 detected by the torque sensor 18 reaches the set standard torque value, the driving motor 7 stops moving, and simultaneously the first angle sensor 8 is utilized to record the rotation angle of the correcting photovoltaic module 4 at the moment,
the central controller 17 controls the electric turnover mechanism 15 to rotate and adjust the rotating cross frame 12, and detects the inclination angle of the power generation photovoltaic panel 14 in the rotation of the rotating shaft 11 through the second angle sensor 16, and the electric turnover mechanism 15 stops working when the inclination angle value of the power generation photovoltaic panel 14 detected by the second angle sensor 16 is consistent with the inclination angle value of the correction photovoltaic module 4 detected by the first angle sensor 8.
The electric turnover mechanism 15 comprises an arc-shaped frame 19 arranged on the rotating transverse frame 12, an arc-shaped gear ring 20 is arranged on the arc-shaped edge of the arc-shaped frame 19, a transmission gear 21 meshed with the arc-shaped gear ring 20 and driven is arranged on the support 10, a servo motor 22 used for driving the transmission gear 21 to rotate is arranged on the support 10, an output shaft of the servo motor 22 is in transmission connection with the transmission gear 21 through a speed reducer, and the servo motor 22 is electrically connected with the central controller 17.
The power generation photovoltaic panels 14 are provided with a plurality of power generation photovoltaic panels 14, the power generation photovoltaic panels 14 are arranged on a connecting cross rod 13 through a folding storage mechanism, the folding storage mechanism comprises a positioning plate 23 which is arranged on the connecting cross rod 13 and is parallel to the connecting cross rod 13, a sliding cavity 24 is arranged on the positioning plate 23, a connecting shaft 25 is arranged at the side end of the power generation photovoltaic panels 14, a sliding block 26 sliding along the sliding cavity 24 is arranged at the end part of the connecting shaft 25 through a bearing, a worm wheel 27 is arranged at the shaft end of the connecting shaft 25, a spline shaft 28 is arranged in the sliding cavity 24, a plurality of worms 29 sliding along the spline shaft 28 are arranged on the spline shaft 28, a fixing frame 30 is arranged on the sliding block 26, the worms 29 are rotatably connected with the fixing frame 30 through bearings, and the worms 29 are matched with the worm wheel 27; the connecting cross rod 13 is provided with a driving mechanism for driving the spline shaft 28 to rotate, and a sliding block 26 at the outermost side of one end is fixed with the sliding cavity 24.
The driving mechanism comprises a transmission gear 37 arranged at the shaft end of the spline shaft 28, a linear sliding plate 38 is arranged on the connecting cross rod 13, a straight tooth strip 39 meshed with the transmission gear 37 is arranged on the linear sliding plate 38, and the linear sliding plate 38 is pushed by an electric push rod 40 in a linear mode.
The power generation photovoltaic panels 14 are folded together through a folding mechanism, the folding mechanism comprises connecting rods 32 hinged to sliding blocks 26, positioning blocks 33 are arranged between the connecting rods 32 between two adjacent sliding blocks 26, a telescopic push rod 34 is arranged on the connecting cross rod 13, lifting slide rods 35 are arranged between the end parts of the two telescopic push rods 34, and sliding sleeves 36 along the lifting slide rods 35 are fixed on the positioning blocks 33.
Buffer strips are arranged on the side edges of the two sides of the power generation photovoltaic panel 14.
The application method of the distributed photovoltaic measurement device capable of being connected with a power grid is characterized in that a driving motor 7 drives a correcting photovoltaic module 4 to rotate reciprocally and circularly, a current sampling module 2 is utilized to detect the current of direct current of the correcting photovoltaic module 4, a real-time current value is obtained through processing of an MCU module 3, and a real-time rotation angle of the correcting photovoltaic module 4 is detected through a first angle sensor 8; comparing the real-time current value of the current sampling module 2 to obtain a maximum value, and obtaining the inclination angle value of the corrected photovoltaic module 4 detected by the first angle sensor 8 when the real-time current value is the maximum value;
transmitting the inclination angle value of the correction photovoltaic module 4 to the central controller 17 when the obtained real-time current value is the maximum value through the MCU module 3, controlling the electric turnover mechanism 15 to rotate and adjust the rotating transverse frame 12 by the central controller 17, detecting the inclination angle of the power generation photovoltaic panel 14 in the rotation of the rotating shaft 11 through the second angle sensor 16, and stopping the operation of the electric turnover mechanism 15 when the inclination angle value of the power generation photovoltaic panel 14 detected by the second angle sensor 16 is consistent with the inclination angle value of the correction photovoltaic module 4 when the real-time current value is the maximum value;
when the torque sensor 18 detects that the torque value of the rotating shaft 6 reaches the set warning torque value, the driving motor 7 drives the rotating shaft 6 to rotate and further drives the correcting photovoltaic module 4 to rotate so as to change the inclination angle of the correcting photovoltaic module 4, if the torque value of the rotating shaft 6 detected by the torque sensor 18 is in an increasing trend in the rotating process, the driving motor 7 reversely rotates, so that the torque value of the rotating shaft 6 detected by the torque sensor 18 is in an increasing and decreasing trend, until the torque value of the rotating shaft 6 detected by the torque sensor 18 reaches the set standard torque value, the driving motor 7 stops moving, and simultaneously the first angle sensor 8 is utilized to record the rotation angle of the correcting photovoltaic module 4 at the moment,
the central controller 17 controls the electric turnover mechanism 15 to rotate and adjust the rotating transverse frame 12, and detects the inclination angle of the power generation photovoltaic panel 14 in the rotation of the rotating shaft 11 through the second angle sensor 16 until the inclination angle value of the power generation photovoltaic panel 14 detected by the second angle sensor 16 is consistent with the inclination angle value of the correction photovoltaic module 4 detected by the first angle sensor 8, and the electric turnover mechanism 15 stops working;
when folding and storing photovoltaic panels in bad weather, the spline shaft 28 is driven to rotate through the driving mechanism, then the spline shaft drives the worm to rotate, the worm drives the worm wheel to rotate, then the worm wheel drives the power generation photovoltaic panels 14 to rotate, the power generation photovoltaic panels 14 are folded together in a vertical state through the folding mechanism, the lifting slide rod is driven to move through the telescopic push rod 34, the lifting slide rod moves the sliding sleeve 36 downwards, then the connecting rod included angle between two adjacent sliding blocks 26 is changed, the two adjacent sliding blocks are folded together, the power generation photovoltaic panels 14 in the vertical state are folded together, and damage to the photovoltaic panels in bad weather is avoided.
Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that the present invention is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a distributed photovoltaic measuring device that can access electric wire netting which characterized in that: comprises a detection photovoltaic panel assembly (1) and a plurality of power generation photovoltaic panel assemblies (9); the detection photovoltaic panel assembly (1) comprises a current sampling module (2), an MCU module (3), a correction photovoltaic assembly (4) and a base frame (5), wherein the correction photovoltaic assembly (4) is rotationally connected with the base frame (5) through a rotating shaft (6), a driving motor (7) for driving the rotating shaft (6) to rotate is arranged on the base frame (5), and a first angle sensor (8) for detecting the inclination angle of the correction photovoltaic assembly (4) is arranged on the base frame (5); the driving motor (7) and the first angle sensor (8) are electrically connected with the MCU module (3);
the power generation photovoltaic panel assembly (9) comprises a pair of brackets (10), the top end of each bracket (10) is rotatably connected with a rotating transverse frame (12) which turns up and down through a rotating shaft (11), a connecting transverse rod (13) is arranged between the rotating transverse frames (12), a power generation photovoltaic panel (14) is arranged between the connecting transverse rods (13), an electric turning mechanism (15) for driving the rotating transverse frames (13) to turn over is arranged on each bracket (10), and a second angle sensor (16) for detecting the rotating angle of the rotating shaft (11) is arranged on each bracket (10);
the correction photovoltaic module (4) is driven to rotate reciprocally and circularly through the driving motor (7), the current sampling module (2) is used for detecting the current of direct current of the correction photovoltaic module, which is generated by the correction photovoltaic module (4), a real-time current value is obtained through processing of the MCU module (3), and the real-time rotation angle of the correction photovoltaic module (4) is detected through the first angle sensor (8); comparing the real-time current value of the current sampling module (2) to obtain a maximum value, and obtaining a corrected photovoltaic module (4) inclination angle value detected by the first angle sensor (8) when the real-time current value is the maximum value;
the intelligent power generation photovoltaic system further comprises a central controller (17), the MCU module (3) and the electric turnover mechanism (15) are connected with the central controller (17), the inclination angle value of the photovoltaic module (4) is transmitted to the central controller (17) when the real-time current value is the maximum value through the MCU module (3), the central controller (17) controls the electric turnover mechanism (15) to rotate and adjust the rotating cross frame (12), the inclination angle of the power generation photovoltaic panel (14) in rotation of the rotating shaft (11) is detected through the second angle sensor (16), and the electric turnover mechanism (15) stops working when the inclination angle value of the power generation photovoltaic panel (14) detected by the second angle sensor (16) is consistent with the inclination angle value of the photovoltaic module (4) when the real-time current value is the maximum value.
2. The grid-accessible distributed photovoltaic measurement device according to claim 1, wherein the rotating shaft (6) is provided with a torque sensor (18) for detecting the rotating shaft (6), the torque sensor (18) is electrically connected with the MCU module, when the torque sensor (18) detects that the torque value of the rotating shaft (6) reaches a set warning torque value, the driving motor (7) drives the rotating shaft (6) to rotate and further drives the correcting photovoltaic assembly (4) to rotate so as to change the inclination angle of the correcting photovoltaic assembly (4), if the torque value of the rotating shaft (6) detected by the torque sensor (18) increases in a trend, the driving motor (7) reversely rotates so that the torque value of the rotating shaft (6) detected by the torque sensor (18) increases in a trend until the torque value of the rotating shaft (6) detected by the torque sensor (18) reaches a set standard torque value, the driving motor (7) stops moving, and the correcting photovoltaic assembly (4) is recorded by using the first angle sensor (8),
the central controller (17) controls the electric turnover mechanism (15) to rotate and adjust the rotating transverse frame (12), and detects the inclination angle of the power generation photovoltaic panel (14) in the rotation of the rotating shaft (11) through the second angle sensor (16), and the electric turnover mechanism (15) stops working until the inclination angle value of the power generation photovoltaic panel (14) detected by the second angle sensor (16) is consistent with the inclination angle value of the correction photovoltaic module (4) detected by the first angle sensor (8).
3. The distributed photovoltaic measurement device capable of being connected to a power grid according to claim 1, wherein the electric turnover mechanism (15) comprises an arc-shaped frame (19) arranged on a rotating transverse frame (12), an arc-shaped gear ring (20) is arranged on the arc-shaped edge of the arc-shaped frame (19), a transmission gear (21) meshed with the arc-shaped gear ring (20) for transmission is arranged on the support (10), a servo motor (22) used for driving the transmission gear (21) to rotate is arranged on the support (10), an output shaft of the servo motor (22) is in transmission connection with the transmission gear (21) through a speed reducer, and the servo motor (22) is electrically connected with the central controller (17).
4. The distributed photovoltaic measurement device capable of being connected to a power grid according to claim 1, wherein a plurality of power generation photovoltaic panels (14) are arranged, the power generation photovoltaic panels (14) are arranged on a connecting cross rod (13) through a folding storage mechanism, the folding storage mechanism comprises a positioning plate (23) which is arranged on the connecting cross rod (13) and is parallel to the connecting cross rod (13), a sliding cavity (24) is arranged on the positioning plate (23), a connecting shaft (25) is arranged at the side end of the power generation photovoltaic panels (14), a sliding block (26) sliding along the sliding cavity (24) is arranged at the end part of the connecting shaft (25) through a bearing, a worm wheel (27) is arranged at the shaft end of the connecting shaft (25), a spline shaft (28) is arranged in the sliding cavity (24), a plurality of worms (29) sliding along the spline shaft (28) are arranged on the spline shaft (28), a fixing frame (30) is arranged on the sliding block (26), the worms (29) are rotationally connected with the fixing frame (30) through bearings, and the worm wheel (29) is matched with the worm wheel (27); the connecting cross rod (13) is provided with a driving mechanism for driving the spline shaft (28) to rotate, and a sliding block (26) at the outermost side of one end is fixed with the sliding cavity (24).
5. A distributed photovoltaic measurement device accessible to a power grid according to claim 4, characterized in that the driving mechanism comprises a transmission gear (37) arranged at the shaft end of a spline shaft (28), a linear sliding plate (38) is arranged on the connecting cross bar (13), a straight rack (39) meshed with the transmission gear (37) is arranged on the linear sliding plate (38), and the linear sliding plate (38) is pushed linearly by an electric push rod (40).
6. The distributed photovoltaic measurement device capable of being connected to a power grid according to claim 4, wherein the power generation photovoltaic panels (14) are folded together through a folding mechanism, the folding mechanism comprises connecting rods (32) hinged to sliding blocks (26), positioning blocks (33) are arranged between the connecting rods (32) between two adjacent sliding blocks (26), telescopic pushing rods (34) are arranged on the connecting cross rods (13), lifting sliding rods (35) are arranged between the end parts of two telescopic pushing rods (34), and sliding sleeves (36) along the lifting sliding rods (35) are fixed on the positioning blocks (33).
7. The grid-accessible distributed photovoltaic measurement device of claim 1, wherein the power generating photovoltaic panel (14) is provided with buffer strips on both side edges.
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