Changeable high-energy-efficiency photovoltaic tracking structure system
By introducing real-time monitoring and dynamic adjustment technologies into the photovoltaic tracking system, the problem that the existing photovoltaic tracking system fails to adjust the angle of the photovoltaic panel in real time is solved, and the photovoltaic panel power generation efficiency is maximized.
Patent Information
- Application Number
- CN202411649704.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-02-18
AI Technical Summary
The existing photovoltaic tracking system fails to adjust the angle in real time based on the actual power generation of the photovoltaic panel, resulting in the photovoltaic panel's power generation efficiency being unable to reach the optimal state.
By introducing the startup center, angle interval determination end, component control end, power generation data analysis end and data monitoring end in the photovoltaic tracking system, the power generation capacity of the photovoltaic panel is monitored in real time, and the angle interval is determined based on the optimal execution angle for adjustment, through analysis The power generation change curve confirms the optimal execution angle to realize dynamic adjustment of the angle of the photovoltaic panel.
By real-time monitoring and dynamically adjusting the angle of the photovoltaic panel, the optimal radiation direction can be faced to the greatest extent, thereby improving the power generation efficiency of the photovoltaic panel and achieving the best photovoltaic panel angle adjustment effect.
Smart Images

Figure CN119472806A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of photovoltaic tracking, and in particular to a variable and high-energy-efficiency photovoltaic tracking structure system. Background Art
[0002] Photovoltaic tracking refers to the use of specific devices and technologies in photovoltaic power generation systems to allow photovoltaic modules to rotate as the position of the sun changes, so that the photovoltaic modules always remain perpendicular or nearly perpendicular to the sun's rays; this can maximize the use of solar radiation energy, thereby improving the power generation efficiency of photovoltaic power generation systems; for example, during the day, the sun rises from the east, passes the highest point in the sky, and then falls to the west, and its altitude and azimuth angles are constantly changing. The photovoltaic tracking system is to track these changes so that the photovoltaic panels can dynamically adjust their angles.
[0003] The application with publication number CN105549627A discloses a method for automatic solar tracking control of photovoltaic power generation, which is a photovoltaic power generation tracking system based on an azimuth-pitch dual-axis, including: establishing a Cartesian coordinate system with due east, due north and zenith as the positive direction, calculating the azimuth and pitch correction angles of the photovoltaic panels according to the real-time azimuth and altitude angles of the incident sun's rays by a time control method, and adjusting the posture of the photovoltaic panels in real time so that the photovoltaic panels are always perpendicular to the incident direction of the sun's rays, thereby maximizing the use of solar energy and achieving optimal energy efficiency control.
[0004] When the photovoltaic panels are tracking the power generation direction, they are generally adjusted in real time based on the corresponding algorithms and preset parameters. The adjustment methods performed in different areas are the same, which will cause the power generation efficiency of the photovoltaic panels to not reach the optimal state. The angle of the photovoltaic panels is not adjusted in real time based on the actual power generation situation of the photovoltaic panels, thereby failing to ensure that the photovoltaic panels reach the optimal power generation state. Summary of the invention
[0005] In view of the shortcomings of the prior art, the present invention provides a variable and energy-efficient photovoltaic tracking structure system, which solves the problem that the angle of the photovoltaic panels is not adjusted in real time based on the actual power generation situation of the photovoltaic panels, thereby failing to ensure that the photovoltaic panels reach the optimal power generation state.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a variable high-efficiency photovoltaic tracking structure system, comprising:
[0007] The start center, based on the execution time associated with the best execution angle, the initial best execution angle point is the preset angle, and the power generation is monitored from the execution time. When the reduction value of the power generation reaches Y1, a start signal is generated and transmitted to the angle interval determination end, where Y1 is the preset value;
[0008] The angle interval determination end confirms the current moment based on the generated start signal, and then confirms a set of angle change intervals based on the example angle associated with the current moment, and transmits the confirmed angle change intervals to the component control end, specifically in the following manner:
[0009] Confirm the example angle J associated with the current moment i , where i represents different current moments, and the example angles are preset angles, and there are different example angles corresponding to different moments;
[0010] Based on the confirmed example angle J i , lock a set of angle change intervals [J i -J1,J i +J1], where J1 is the preset value;
[0011] The component control end controls the execution angle of the photovoltaic panel to change the angle based on the determined angle change interval, adjusts it from the minimum value to the maximum value of the angle change interval in sequence, and records the adjustment data packet, wherein the adjustment data packet includes different adjustment angles corresponding to different moments, and transmits the confirmed adjustment data packet to the power generation data analysis end;
[0012] The data monitoring end monitors the different power generation generated by the photovoltaic panels at different times in real time;
[0013] The power generation data analysis terminal extracts the power generation associated with the corresponding time from the data monitoring terminal based on the confirmed adjustment data packet, and generates the angle power change curve based on the different adjustment angles corresponding to different times, and analyzes the angle power change curve to confirm whether there is an optimal execution angle. If so, the secondary angle interval is not confirmed. If not, the secondary angle interval is confirmed. The specific method is as follows:
[0014] Based on the different adjustment angles corresponding to different moments confirmed in the adjustment data packet, and then confirming the power generation associated with the corresponding moment from the data monitoring terminal, an angle power change curve is generated, the horizontal coordinate axis of this curve is the adjustment angle, and the vertical coordinate axis is the power generation;
[0015] Identify the inflection point in the angle power change curve. The value change trends of the adjacent points before and after the inflection point are opposite:
[0016] If there is only one set of inflection points in the current angle power change curve, the adjustment angle associated with the inflection point is calibrated as the optimal execution angle, and the component control end adjusts the angle based on the determined optimal execution angle, and calibrates the time after the adjustment is completed as the execution time, which is transmitted to the start center;
[0017] If there are multiple groups of inflection points in the current angle power change curve, the curve segments associated between the several inflection points are marked as pending segments, and the pending segments are transmitted to the secondary data analysis terminal, and then the adjustment angles associated with the initial point and the end point of the pending segment are determined, the secondary angle interval is determined, and the confirmed secondary angle interval is transmitted to the component control terminal;
[0018] The component control end controls the execution angle of the photovoltaic panel to change the angle based on the confirmed secondary angle interval, adjusts it from the minimum value to the maximum value of the secondary angle interval in sequence, and records the secondary adjustment data packet, wherein the secondary adjustment data packet includes different adjustment angles corresponding to different moments, and transmits the confirmed secondary adjustment data packet to the secondary data analysis end;
[0019] The secondary data analysis end, based on the confirmed secondary regulation data packet, extracts the power generation associated with the corresponding time from the data monitoring end, and generates a secondary change curve in the same way as the power generation data analysis end generates the angle power change curve, analyzes the secondary change curve, confirms the best execution angle and transmits it to the component control end, specifically in the following ways:
[0020] Based on the different adjustment angles corresponding to different moments in the secondary adjustment data packet, the power generation associated with the corresponding moment is confirmed from the data monitoring terminal, and a secondary change curve is generated, the horizontal coordinate axis of the curve is the adjustment angle, and the vertical coordinate axis is the power generation;
[0021] Identify the inflection point in the quadratic change curve: If there is only one set of inflection points, the adjustment angle associated with this inflection point is calibrated as the optimal execution angle. The component control end adjusts the angle based on the determined optimal execution angle, and calibrates the time after the adjustment is completed as the execution time, which is transmitted to the start center;
[0022] If there are multiple groups of inflection points: determine the peak power generation in the quadratic change curve, calibrate it as the secondary characteristic value, determine the peak power generation from the undetermined segment, calibrate it as the primary characteristic value, calibrate the adjustment angle associated with the primary characteristic value as the primary angle, and calibrate the adjustment angle associated with the secondary characteristic value as the secondary angle:
[0023] If the primary angle = the secondary angle, the primary angle or the secondary angle is calibrated as the best execution angle;
[0024] If the primary angle ≠ the secondary angle: identify the numerical values of the primary eigenvalue and the secondary eigenvalue. If the primary eigenvalue = the secondary eigenvalue, calibrate the mean angle between the primary angle and the secondary angle as the optimal execution angle. If the primary eigenvalue < the secondary eigenvalue, calibrate the secondary angle as the optimal execution angle. If the primary eigenvalue > the secondary eigenvalue, confirm the change segment between the primary angle and the secondary angle from the secondary change curve, confirm the rising segment of the power generation value from the change segment, identify the rising values of the power generation at the adjacent points from the confirmed rising segment of the power generation value, and then average the confirmed several rising values of the power generation to confirm the unit characteristics, and then identify the number of points G between the primary angle and the secondary angle, and use: Bz = primary eigenvalue + (unit characteristic × G) to confirm the standard value Bz to be checked, and check the standard value Bz with the secondary eigenvalue: if Bz ≤ the secondary eigenvalue, calibrate the secondary angle as the optimal execution angle; if Bz > the secondary eigenvalue, calibrate the mean angle between the primary angle and the secondary angle as the optimal execution angle;
[0025] The component control end performs angle adjustment based on the determined optimal execution angle, and marks the time after the adjustment is completed as the execution time.
[0026] Preferably, it also includes a mechanically linked tracking and rotating system reduction device for changing the angle of the photovoltaic panel, wherein the mechanically linked tracking and rotating system reduction device includes a tracking and rotating device, a gear box and a synchronization shaft, wherein the synchronization shaft is installed between multiple tracking and rotating devices, and the gear box is arranged on one side of the tracking and rotating device for providing an associated reduction ratio to the synchronization shaft.
[0027] Preferably, a driving motor is arranged on the side of the gear box, a synchronous output shaft is arranged above the driving motor and synchronously on the side of the gear box, a gear box body is arranged outside the gear box, and a cable aviation plug is arranged at the bottom of the gear box.
[0028] The present invention provides a variable and high-efficiency photovoltaic tracking structure system. Compared with the prior art, it has the following beneficial effects:
[0029] The present invention monitors the power generation of the photovoltaic panel, determines the corresponding angle interval based on the optimal angle associated with the corresponding moment, analyzes the power generation data based on the corresponding adjustment process, and determines whether the optimal execution angle exists based on the process of preliminary analysis. If it exists, it is directly executed. If it does not exist, the secondary angle interval with associated characteristics is locked from the process of preliminary analysis, and then a secondary debugging analysis is performed based on the secondary angle interval to determine the optimal execution angle. This method of determining the optimal execution angle fine-tunes the photovoltaic panel so that the photovoltaic panel can face the optimal radiation direction to the greatest extent, so that the photovoltaic panel can reach the optimal power generation state, thereby achieving the best photovoltaic panel angle adjustment effect;
[0030] By adding an output position on the transmission shaft, a multi-stage linkage effect is achieved, realizing the series use of multi-point transmission reducers. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 It is a schematic diagram of the principle framework of the present invention;
[0032] Figure 2 It is a partial structural schematic diagram of the mechanical linkage tracking and slewing system speed reducer of the present invention;
[0033] Figure 3 It is a schematic diagram of the overall structure of the mechanical linkage tracking slewing system speed reducer of the present invention;
[0034] Figure 4 It is a schematic diagram of the gear assembly of the gearbox of the present invention;
[0035] Figure 5 It is a schematic plan view of the side structure of the gearbox of the present invention.
[0036] Figure numerals: 1. Tracking rotary device; 2. Gear box; 3. Synchronous shaft; 4. Driving motor; 5. Synchronous output shaft; 6. Gear box body; 7. Cable aviation plug. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0038] First embodiment
[0039] See also Figure 1 The present application provides a variable high-efficiency photovoltaic tracking structure system, including a starting center, an angle interval determination terminal, a component control terminal, a power generation data analysis terminal, a secondary data analysis terminal and a data monitoring terminal:
[0040] Among them, the start center, based on the execution time associated with the best execution angle (the best execution angle is determined by the secondary data analysis end or the power generation data analysis end, and the initial best execution angle point is a preset angle, which is prepared in advance by relevant operators based on experience. In order to achieve a closed loop, the start center is placed first for description here), starts to monitor the power generation from the execution time, and when the reduction value of the power generation reaches Y1 (reduction value = power generation corresponding to the execution time - power generation corresponding to the start signal generation time), generates a start signal, and transmits the start signal to the angle interval determination end, wherein Y1 is a preset value, and its specific value is prepared by the operator based on experience;
[0041] The angle interval determination end confirms the current moment based on the generated start signal, and then confirms a set of angle change intervals based on the example angle associated with the current moment, and transmits the confirmed angle change intervals to the component control end. The specific method of confirming the angle change interval is:
[0042] Confirm the example angle J associated with the current moment i , where i represents different current moments, and the example angles are preset angles, which are prepared in advance by relevant personnel. Different example angles correspond to different moments (such angles are based on the different positions of the sun at different moments, so the associated example angles can be calibrated);
[0043] Based on the confirmed example angle J i , lock a set of angle change intervals [J i -J1,J i +J1], where J1 is a preset value, which is formulated by relevant personnel based on experience and is generally 5°. The determined angle change range is transmitted to the corresponding component control terminal and power generation data analysis terminal respectively.
[0044] Among them, the component control end controls the execution angle of the photovoltaic panel to change the angle (that is, changes the orientation angle of the photovoltaic panel) based on the determined angle change range, adjusts from the minimum value to the maximum value of the angle change range in sequence, and records the adjustment data packet, which includes different adjustment angles corresponding to different times, and transmits the confirmed adjustment data packet to the power generation data analysis end.
[0045] Among them, the data monitoring end monitors the different power generation generated by the photovoltaic panels at different times in real time;
[0046] Among them, the power generation data analysis end, based on the confirmed adjustment data packet, extracts the power generation associated with the corresponding time from the data monitoring end, and generates its angle power change curve based on the different adjustment angles corresponding to different times, and analyzes the angle power change curve to confirm whether there is an optimal execution angle. If so, the secondary angle interval is not confirmed. If not, the secondary angle interval is confirmed. The specific method for confirming whether there is an optimal execution angle is:
[0047] Based on the different adjustment angles corresponding to different moments confirmed in the adjustment data packet, and then confirming the power generation associated with the corresponding moment from the data monitoring terminal, an angle power change curve is generated, the horizontal coordinate axis of this curve is the adjustment angle, and the vertical coordinate axis is the power generation;
[0048] Identify the inflection point in the angle power change curve, and the value change trend of the adjacent points before and after the inflection point is opposite (that is, when the power generation from the previous group of adjacent points to the inflection point increases, the power generation from this inflection point to the next group of adjacent points will decrease; when the power generation from the previous group of adjacent points to the inflection point decreases, the power generation from this inflection point to the next group of adjacent points will increase):
[0049] If there is only one set of inflection points in the current angle power change curve (indicating that there is no cloud cover during this period), the adjustment angle associated with this inflection point is calibrated as the optimal execution angle, and the component control end adjusts the angle based on the determined optimal execution angle, and calibrates the time after the adjustment is completed as the execution time, which is transmitted to the start center;
[0050] If there are multiple groups of inflection points in the current angle power change curve, the curve segments associated between several inflection points are marked as pending segments (that is, part of the curve segment between the first inflection point and the last inflection point), and the pending segments are transmitted to the secondary data analysis end, and then the adjustment angles associated with the initial point and the end point of the pending segment are determined, and the secondary angle interval is determined (that is, the minimum and maximum values of the adjustment angle, that is, the values corresponding to the initial point and the end point, and the angle changes gradually), and the confirmed secondary angle interval is transmitted to the component control end.
[0051] The component control end controls the execution angle of the photovoltaic panel to change the angle based on the confirmed secondary angle interval, adjusts it from the minimum value to the maximum value of the secondary angle interval, and records the secondary adjustment data packet, which includes different adjustment angles corresponding to different moments, and transmits the confirmed secondary adjustment data packet to the secondary data analysis end;
[0052] The secondary data analysis end, based on the confirmed secondary regulation data packet, extracts the power generation associated with the corresponding time from the data monitoring end, and generates a secondary change curve in the same way as the power generation data analysis end generates the angle power change curve, analyzes the secondary change curve, confirms the best execution angle and transmits it to the component control end, wherein the specific method of analyzing the secondary change curve is:
[0053] Based on the different adjustment angles corresponding to different moments in the secondary adjustment data packet, the power generation associated with the corresponding moment is confirmed from the data monitoring terminal, and a secondary change curve is generated, the horizontal coordinate axis of the curve is the adjustment angle, and the vertical coordinate axis is the power generation;
[0054] Identify the inflection point in the quadratic change curve: If there is only one set of inflection points, the adjustment angle associated with this inflection point is calibrated as the optimal execution angle. The component control end adjusts the angle based on the determined optimal execution angle, and calibrates the time after the adjustment is completed as the execution time, which is transmitted to the start center;
[0055] If there are multiple groups of inflection points: determine the peak power generation in the quadratic change curve, calibrate it as the secondary characteristic value, determine the peak power generation from the undetermined segment, calibrate it as the primary characteristic value, calibrate the adjustment angle associated with the primary characteristic value as the primary angle, and calibrate the adjustment angle associated with the secondary characteristic value as the secondary angle:
[0056] If the primary angle = the secondary angle, the primary angle or the secondary angle is calibrated as the best execution angle;
[0057] If the primary angle ≠ the secondary angle: identify the numerical size of the primary eigenvalue and the secondary eigenvalue. If the primary eigenvalue = the secondary eigenvalue, calibrate the mean angle between the primary angle and the secondary angle as the optimal execution angle (that is, perform mean processing on the primary angle and the secondary angle). If the primary eigenvalue < the secondary eigenvalue, calibrate the secondary angle as the optimal execution angle. If the primary eigenvalue > the secondary eigenvalue, confirm the change segment between the primary angle and the secondary angle from the secondary change curve, confirm the rising segment of the power generation value from the change segment (the part of the segment where the power generation value decreases is not selected, and only the part of the curve segment where the power generation value increases upward is selected), identify the rising power generation values of adjacent points from the confirmed rising segment of the power generation value, and then perform mean processing on the confirmed several rising power generation values to confirm the unit characteristics, and then identify the angle between the primary angle and the secondary angle. The number of points G between the first angle and the second angle (which can be determined based on the interval time, each moment corresponds to a group of points, and the number of points is the same as the number of moments between the first angle and the second angle), and the standard value Bz to be checked is confirmed by: Bz = first characteristic value + (unit characteristic × G), and the standard value Bz is checked with the second characteristic value: if Bz ≤ second characteristic value (which means that the second characteristic value is the strongest characteristic, that is, the point with the highest power generation), the second angle is calibrated as the best execution angle, if Bz> second characteristic value (which means that there is cloud cover in the associated period between the first angle and the second angle, whether in the to-be-determined section or in the second change curve, but the characteristics of the two numerical characteristic points are the strongest, so the selection of their mean as the execution angle is the optimal solution), the mean angle between the first angle and the second angle is calibrated as the best execution angle;
[0058] The component control end adjusts the angle based on the determined optimal execution angle, marks the time after the adjustment is completed as the execution time, and transmits it to the start center.
[0059] Second embodiment
[0060] In the specific implementation process, this embodiment is different from the first embodiment in that this embodiment mainly executes the relevant process corresponding to the change of the photovoltaic panel angle, and its relevant process is executed by the corresponding mechanical linkage tracking slewing system deceleration device;
[0061] Its mechanical linkage tracking slewing system deceleration device (the overall schematic diagram is as follows Figure 3 shown), combined Figure 2 , comprising a tracking rotary device 1, a gear box 2 and a synchronous shaft 3, wherein the synchronous shaft 3 is installed between a plurality of tracking rotary devices 1, and the gear box 2 is arranged on one side of the tracking rotary device 1, for providing an associated reduction ratio for the synchronous shaft 3;
[0062] Combination Figure 4-Figure 5A driving motor 4 is arranged on the side of the gear box 2, a synchronous output shaft 5 is arranged above the driving motor 4 and synchronously on the side of the gear box 2, a gear box body 6 is arranged outside the gear box 2, and a cable aviation plug 7 is arranged at the bottom of the gear box 6.
[0063] Third embodiment
[0064] Some of the data in the above formulas are dimensionless and numerically calculated. Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0065] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.
Claims
1. A variable and high-efficiency photovoltaic tracking structure system, characterized in that: include: The start center, based on the execution time associated with the best execution angle, the initial best execution angle point is the preset angle, and the power generation is monitored from the execution time. When the reduction value of the power generation reaches Y1, a start signal is generated and transmitted to the angle interval determination end, where Y1 is the preset value; The angle interval determination end confirms the current moment based on the generated start signal, confirms a set of angle change intervals based on the example angle associated with the current moment, and transmits the confirmed angle change intervals to the component control end; The component control end controls the execution angle of the photovoltaic panel to change the angle based on the determined angle change interval, adjusts it from the minimum value to the maximum value of the angle change interval in sequence, and records the adjustment data packet, wherein the adjustment data packet includes different adjustment angles corresponding to different moments, and transmits the confirmed adjustment data packet to the power generation data analysis end; The data monitoring end monitors the different power generation generated by the photovoltaic panels at different times in real time; The power generation data analysis end extracts the power generation associated with the corresponding time from the data monitoring end based on the confirmed adjustment data packet, and generates the angle power change curve based on the different adjustment angles corresponding to different times, and analyzes the angle power change curve to confirm whether there is an optimal execution angle. If so, the secondary angle interval confirmation is not performed. If not, the secondary angle interval confirmation is performed. The component control end controls the execution angle of the photovoltaic panel to change the angle based on the confirmed secondary angle interval, adjusts it from the minimum value to the maximum value of the secondary angle interval in sequence, and records the secondary adjustment data packet, wherein the secondary adjustment data packet includes different adjustment angles corresponding to different moments, and transmits the confirmed secondary adjustment data packet to the secondary data analysis end; The secondary data analysis end, based on the confirmed secondary regulation data packet, extracts the power generation associated with the corresponding time from the data monitoring end, and generates a secondary change curve in the same way as the power generation data analysis end generates the angle power change curve, analyzes the secondary change curve, confirms the best execution angle and transmits it to the component control end; The component control end performs angle adjustment based on the determined optimal execution angle, and marks the time after the adjustment is completed as the execution time.
2. A variable high energy efficiency photovoltaic tracking structure system according to claim 1, characterized in that: The angle interval determination end determines the angle change interval in a specific manner as follows: Confirm the example angle J associated with the current moment i , where i represents different current moments, and the example angles are preset angles, and there are different example angles corresponding to different moments; Based on the confirmed example angle J i , lock a set of angle change intervals [J i -J1,J i +J1], where J1 is the preset value.
3. The variable high energy efficiency photovoltaic tracking structure system according to claim 1, characterized in that: The specific method for the power generation data analysis end to confirm whether there is an optimal execution angle is: Based on the different adjustment angles corresponding to different moments confirmed in the adjustment data packet, and then confirming the power generation associated with the corresponding moment from the data monitoring terminal, an angle power change curve is generated, the horizontal coordinate axis of this curve is the adjustment angle, and the vertical coordinate axis is the power generation; Identify the inflection point in the angle power change curve. The value change trends of the adjacent points before and after the inflection point are opposite: If there is only one set of inflection points in the current angle power change curve, the adjustment angle associated with the inflection point is calibrated as the optimal execution angle, and the component control end adjusts the angle based on the determined optimal execution angle, and calibrates the time after the adjustment is completed as the execution time, which is transmitted to the start center; If there are multiple groups of inflection points in the current angle power change curve, the curve segments associated between several inflection points are marked as pending segments, and the pending segments are transmitted to the secondary data analysis terminal, and then the adjustment angles associated with the initial point and the end point of the pending segment are determined, the secondary angle interval is determined, and the confirmed secondary angle interval is transmitted to the component control terminal.
4. The variable high energy efficiency photovoltaic tracking structure system according to claim 1, characterized in that: The specific method of analyzing the secondary change curve at the secondary data analysis end is as follows: Based on the different adjustment angles corresponding to different moments in the secondary adjustment data packet, the power generation associated with the corresponding moment is confirmed from the data monitoring terminal, and a secondary change curve is generated, the horizontal coordinate axis of the curve is the adjustment angle, and the vertical coordinate axis is the power generation; Identify the inflection point in the quadratic change curve: If there is only one set of inflection points, the adjustment angle associated with this inflection point is calibrated as the optimal execution angle. The component control end adjusts the angle based on the determined optimal execution angle, and calibrates the time after the adjustment is completed as the execution time, which is transmitted to the start center; If there are multiple groups of inflection points: determine the peak power generation in the quadratic change curve, calibrate it as the secondary characteristic value, determine the peak power generation from the undetermined segment, calibrate it as the primary characteristic value, calibrate the adjustment angle associated with the primary characteristic value as the primary angle, and calibrate the adjustment angle associated with the secondary characteristic value as the secondary angle: If the primary angle = the secondary angle, the primary angle or the secondary angle is calibrated as the optimal execution angle.
5. A variable high energy efficiency photovoltaic tracking structure system according to claim 4, characterized in that: If the primary angle ≠ the secondary angle: identify the numerical size of the primary eigenvalue and the secondary eigenvalue. If the primary eigenvalue = the secondary eigenvalue, calibrate the mean angle between the primary angle and the secondary angle as the optimal execution angle. If the primary eigenvalue < the secondary eigenvalue, calibrate the secondary angle as the optimal execution angle. If the primary eigenvalue > the secondary eigenvalue, confirm the change segment between the primary angle and the secondary angle from the secondary change curve, confirm the rising segment of the power generation value from the change segment, identify the rising values of power generation at adjacent points from the confirmed rising segment of power generation value, and then average the confirmed several rising values of power generation to confirm the unit feature, and then identify the number of points G between the primary angle and the secondary angle, use: Bz = primary eigenvalue + (unit feature × G) to confirm the standard value Bz to be checked, and check the standard value Bz with the secondary eigenvalue: if Bz≤secondary eigenvalue, calibrate the secondary angle as the optimal execution angle.
6. A variable high energy efficiency photovoltaic tracking structure system according to claim 5, characterized in that: If Bz>secondary eigenvalue, the mean angle between the primary angle and the secondary angle is calibrated as the optimal execution angle.
7. The variable high energy efficiency photovoltaic tracking structure system according to claim 1, characterized in that: It also includes a mechanically linked tracking and rotating system reduction device for changing the angle of the photovoltaic panel, wherein the mechanically linked tracking and rotating system reduction device includes a tracking and rotating device, a gear box and a synchronization shaft, wherein the synchronization shaft is installed between multiple tracking and rotating devices, and the gear box is arranged on one side of the tracking and rotating device for providing an associated reduction ratio to the synchronization shaft.
8. The variable high energy efficiency photovoltaic tracking structure system according to claim 7, characterized in that: A driving motor is arranged on the side of the gear box, a synchronous output shaft is arranged above the driving motor and synchronously on the side of the gear box, a gear box body is arranged outside the gear box, and a cable aviation plug is arranged at the bottom of the gear box.
Citation Information
Patent Citations
Automatic sun tracking control method of double-axis photovoltaic power generation
CN105549627A