CN110750109A - Single-axis photovoltaic tracking system and method - Google Patents
Single-axis photovoltaic tracking system and method Download PDFInfo
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Abstract
The invention provides a single-shaft photovoltaic tracking system and a single-shaft photovoltaic tracking method, wherein the photovoltaic tracking system comprises fixed mounting components and a photovoltaic tracking system main body arranged between the fixed mounting components; the photovoltaic tracking system main part comprises a rotating shaft (2), a photovoltaic panel (3), a control device (4) and a monitoring device (5). The control device (4) acquires the position information of the photovoltaic panel (3), and the real-time angle information of the photovoltaic panel (3) provided by the monitoring device (5) is combined to drive the rotating shaft (2) to drive the photovoltaic panel (3) to rotate. The single-axis photovoltaic tracking control system provided by the invention calculates the optimal rotation angle of the photovoltaic panel according to the geographical longitude and latitude and the current time of the photovoltaic panel, and the photovoltaic panel is perpendicular to the sun in the rotation direction under the rotation angle, so that the maximization of the illumination intensity is realized.
Description
Technical Field
The invention relates to the field of solar photovoltaic power generation, in particular to a single-shaft photovoltaic tracking control system and a single-shaft photovoltaic tracking control method.
Background
Compared with the conventional energy source which is continuously consumed and reduced and brings about environmental problems, solar energy becomes an important source of power generation by virtue of the advantages of no exhaustion risk, low pollution, low cost and the like, and is vigorously developed in various countries in recent years.
The traditional solar photovoltaic power generation is generally installed in a fixed shaft mode, a photovoltaic panel is fixedly installed by selecting a proper inclination angle according to the position, and the photovoltaic panel cannot change along with the movement of the position of the sun. The mode becomes the main mode of photovoltaic power generation at present due to the characteristics of simple and convenient installation, low cost and the like. But the fixed shaft mode greatly reduces the solar energy utilization efficiency because the fixed shaft mode can not track the rotation of the sun.
Disclosure of Invention
In order to effectively improve the utilization rate of solar power generation, the invention provides a single-shaft photovoltaic tracking system, wherein a photovoltaic panel is arranged at a fixed inclination angle according to the geographical position of the photovoltaic panel, and the tracking of the sun is realized by controlling the rotation of the photovoltaic panel, so that the photovoltaic panel is basically vertical to the sun in the rotation direction.
The technical scheme provided by the invention is as follows:
a single-axis photovoltaic tracking system, comprising a fixed mounting assembly; set up photovoltaic tracking system main part, its characterized in that between fixed mounting subassembly:
the photovoltaic tracking system main body comprises a rotating shaft (2), a photovoltaic panel (3), a control device (4) and a monitoring device (5);
the photovoltaic panel (3) is arranged on the fixed mounting assembly through a rotating shaft (2); the monitoring devices (5) are arranged on the back of the photovoltaic panel (3) in parallel; the control device (4) is arranged on the fixed mounting component;
the control device (4) is used for: and acquiring the position information of the photovoltaic panel (3), and driving the rotating shaft (2) to drive the photovoltaic panel (3) to rotate by combining the received real-time angle information of the photovoltaic panel (3) provided by the monitoring device (5).
Preferably, the single-axis photovoltaic tracking system further comprises a driving device;
the driving device comprises a rotating shaft driving gear (9), a motor driving gear (10) and a bidirectional stepping motor (6);
the bidirectional stepping motor (6) is arranged on the fixed mounting assembly, and one end of the bidirectional stepping motor is in transmission connection with the rotating shaft (2) through the motor driving gear (10) and the rotating shaft driving gear (9); the other end is connected with the control device (4);
the control device (4) calculates the optimal rotation angle of the photovoltaic panel (3) based on the position information of the photovoltaic panel (3) and the real-time angle information of the photovoltaic panel (3), and drives the rotation shaft (2) to drive the photovoltaic panel (3) to rotate to the optimal angle through the bidirectional stepping motor (6).
Preferably, the position information of the photovoltaic panel (3) includes: the fixed inclination angle, the size, the geographical longitude and latitude and the current time of the photovoltaic panel (3).
Preferably, the control device (4) is provided with a GPS or Beidou module for acquiring longitude and latitude of the current geographic position and the current time; the control device (4) is provided with a man-machine communication interface for a user to input the fixed inclination angle and the size information of the photovoltaic panel.
Preferably, the control device (4) has set calculation and control periods, the control device (4) reads geographical longitude and latitude once, current time and angle information of the photovoltaic panel in each period, calculates the current optimal rotation angle of the photovoltaic panel according to the stored fixed inclination angle and size of the photovoltaic panel, controls the bidirectional stepping motor (6) to rotate forwards or backwards according to the received rotation angle of the photovoltaic panel fed back by the monitoring device (5), and stops the stepping motor to rotate when the set error precision requirement is met.
Preferably, the fixed mounting assembly comprises a low-end mounting bracket (1) and a high-end mounting bracket (11), which are respectively fixed on the ground through a base.
Further, the single-axis photovoltaic tracking system further comprises a fixed rotating bearing;
the fixed rotating bearing comprises a bracket low-end fixed rotating shaft bearing (7) and a bracket high-end fixed rotating shaft bearing (8); the support low-end fixing rotating shaft bearing (7) is fixed on the low-end mounting support (1), and the support high-end fixing rotating shaft bearing (8) is fixed on the high-end mounting support (11).
Preferably, the photosensitive surface of the photovoltaic panel (3) faces the sunshine direction; the photovoltaic panel (3) is controlled to rotate to a horizontal angle after sunset and before sunrise.
Preferably, the single-axis photovoltaic tracking system has a calibration mode for acquiring a real-time feedback value of the monitoring device (5) as an installation deviation after the single-axis photovoltaic tracking system is installed.
Preferably, the calibration mode includes: after the single-shaft photovoltaic tracking system is installed, the photovoltaic panel (3) is placed in a horizontal state by using the level ruler, the control device (4) acquires the current angle of the photovoltaic panel (3) sent by the monitoring device (5), records the current angle as installation deviation, receives GPS or Beidou signals, and records the longitude and latitude information of the photovoltaic panel (3).
Preferably, the photovoltaic panel (3) has a set maximum rotation angle, and will not rotate when the rotation angle calculated by the control device (4) is greater than the set maximum value.
A method of single axis photovoltaic tracking, comprising:
measuring the installation angle of the photovoltaic matrix as installation deviation, acquiring a GPS or Beidou signal, and recording geographic longitude and latitude information and current time of the photovoltaic panel;
calculating and determining the optimal rotation angle of the photovoltaic panel according to the geographic longitude and latitude information of the photovoltaic panel, the current time and the current angle information of the photovoltaic panel measured in advance;
determining the actual rotation angle of the photovoltaic panel according to the optimal rotation angle of the photovoltaic panel, and controlling the photovoltaic panel to rotate to a target angle according to the determined actual rotation angle;
and the system enters a timing waiting state until the photovoltaic tracking process is repeated after a set waiting period.
Preferably, the calculating and determining the optimal rotation angle of the photovoltaic panel according to the geographical longitude and latitude information, the current time and the current angle information of the photovoltaic panel includes:
when the current time is sunset and does not reach sunrise, the optimal rotation angle of the photovoltaic panel is rotated to be horizontal;
and when the current time is not in the sunset, calculating the optimal rotation angle of the photovoltaic panel, which is perpendicular to the sun in the rotation direction, according to the geographic longitude and latitude information of the photovoltaic panel, the current time and the current angle information of the photovoltaic panel.
Preferably, the determining the actual rotation angle of the photovoltaic panel according to the optimal rotation angle of the photovoltaic panel and controlling the photovoltaic panel to rotate to the target angle according to the determined actual rotation angle includes:
when the optimal rotation angle of the photovoltaic panel exceeds the set maximum angle, the photovoltaic panel is not rotated, and the actual rotation angle of the photovoltaic panel is zero;
when the optimal rotation angle of the photovoltaic panel does not exceed the set maximum angle, deducting the installation deviation to obtain the actual rotation angle of the photovoltaic panel;
and controlling the photovoltaic panel to rotate to reach a target angle according to the actual rotation angle of the photovoltaic panel.
Preferably, the system enters a timing waiting state until the photovoltaic tracking process is repeated after a set waiting period, and the method includes:
and a set waiting period is used as a calculation and control period, and when the next calculation period is reached, the rotation angle of the photovoltaic panel is recalculated and driven to be adjusted.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a single-shaft photovoltaic tracking system, which comprises a fixed mounting assembly; a photovoltaic tracking system main body is arranged between the fixed mounting assemblies and comprises a rotating shaft (2), a photovoltaic plate (3), a control device (4) and a monitoring device (5); the photovoltaic panel (3) is arranged on the fixed mounting assembly through a rotating shaft (2); the monitoring devices (5) are arranged on the back of the photovoltaic panel (3) in parallel; the control device (4) is arranged on the fixed mounting component; the control device (4) is used for acquiring the position information of the photovoltaic panel (3), and the received real-time angle information of the photovoltaic panel (3) provided by the monitoring device (5) is combined to drive the rotating shaft (2) to drive the photovoltaic panel (3) to rotate, so that the tracking of the sun is realized. According to the single-shaft photovoltaic tracking system provided by the invention, the rotating shaft is driven to drive the photovoltaic panel to rotate, and the photovoltaic panel is perpendicular to the sun in the rotating direction, so that the maximization of strong illumination is realized.
According to the technical scheme provided by the invention, the photovoltaic panel is arranged to be a fixed inclination angle according to the geographical position of the photovoltaic panel, and the tracking of the sun is realized through single-axis rotation.
According to the technical scheme provided by the invention, the optimal rotation angle of the photovoltaic panel is calculated by monitoring the longitude and latitude and the current time of the geographic position, so that the photovoltaic panel is ensured to be vertical to the sun in the rotation direction, and the solar power generation utilization rate is improved.
Drawings
FIG. 1 is a general block diagram of a single axis photovoltaic tracking system of the present invention;
the photovoltaic solar photovoltaic;
FIG. 2 is a schematic diagram of a single-axis photovoltaic tracking system according to an embodiment of the present invention;
the solar photovoltaic solar energy collecting device comprises an angle 1, a photovoltaic panel, an angle 2, a projection A, an angle 3, an angle 4 and an included angle of the projection and the east-west horizontal direction, wherein the included angle of the photovoltaic panel and the vertical direction is formed by the angle 1, the included angle of the photovoltaic panel and the east-west horizontal direction is formed by the angle 2, the photovoltaic panel and the east-west horizontal direction;
fig. 3 is a flowchart of an embodiment of a single-axis photovoltaic tracking method according to the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a single-shaft photovoltaic tracking system, and relates to the field of solar photovoltaic power generation. According to the characteristic, the photovoltaic panel is installed to be a fixed inclination angle according to the geographical position of the photovoltaic panel, the optimal rotation angle of the photovoltaic panel is calculated by monitoring the longitude and latitude and the current time of the geographical position, single-axis rotation is achieved, tracking of the sun is achieved, the photovoltaic panel is enabled to be basically vertical to the sun in the rotation direction, and the solar power generation utilization rate is effectively improved.
Example 1:
the single-shaft photovoltaic tracking system provided by the embodiment of the invention has the overall structure as shown in fig. 1, and comprises fixed mounting components and a photovoltaic tracking system main body arranged between the fixed mounting components;
the photovoltaic tracking system main body comprises a rotating shaft (2), a photovoltaic panel (3), a control device (4) and a monitoring device (5);
the photovoltaic panel (3) is arranged on the fixed mounting assembly through the rotating shaft (2); the monitoring device (5) is arranged on the back of the photovoltaic panel (3) in parallel; the control device (4) is arranged on the fixed mounting component;
the control device (4) is used for acquiring the position information of the photovoltaic panel (3) and driving the rotating shaft (2) to drive the photovoltaic panel (3) to rotate by combining the real-time angle information of the photovoltaic panel (3) provided by the monitoring device (5).
The single-axis photovoltaic tracking system further comprises a driving device; the driving device comprises a rotating shaft driving gear (9), a motor driving gear (10) and a bidirectional stepping motor (6);
the bidirectional stepping motor (6) is arranged on the fixed mounting component, and one end of the bidirectional stepping motor is in transmission connection with the rotating shaft (2) through a motor driving gear (10) and a rotating shaft driving gear (9); the other end is connected with a control device (4);
the control device (4) calculates the optimal rotation angle of the photovoltaic panel (3) based on the position information of the photovoltaic panel (3) and the real-time angle information of the photovoltaic panel (3), and drives the rotation shaft (2) to drive the photovoltaic panel (3) to rotate to the optimal angle through the bidirectional stepping motor (6).
The control device (4) is provided with a GPS or Beidou module and is used for acquiring longitude and latitude of the current geographic position and the current time; the control device (4) is also provided with a man-machine communication interface for a user to input the fixed inclination angle and the size information of the photovoltaic panel.
The control device (4) is provided with set calculation and control periods, the control device (4) reads geographical longitude and latitude once, current time and angle information of the photovoltaic panel in each period, the optimal rotation angle of the current photovoltaic panel is calculated according to the stored fixed inclination angle and size of the photovoltaic panel, the bidirectional stepping motor (6) is controlled to rotate forwards or backwards according to the received rotation angle of the photovoltaic panel fed back by the monitoring device (5), and when the set error precision requirement is met, the stepping motor is stopped to rotate.
The fixed mounting assembly comprises a low-end mounting bracket (1) and a high-end mounting bracket (11) which are respectively fixed on the ground through a base; the fixed rotating bearing comprises a bracket low-end fixed rotating shaft bearing (7) and a bracket high-end fixed rotating shaft bearing (8); the support low-end fixed rotating shaft bearing (7) is fixed on the low-end mounting support (1), and the support high-end fixed rotating shaft bearing (8) is fixed on the high-end mounting support (11).
The light-sensitive surface of the photovoltaic panel (3) faces the sunlight direction; the photovoltaic panel (3) is controlled to rotate to a horizontal angle after sunset and before sunrise.
The single-axis photovoltaic tracking system has a calibration mode comprising: after the single-shaft photovoltaic tracking system is installed, the photovoltaic panel (3) is placed in a horizontal state by using the level ruler, the current angle of the photovoltaic panel (3) sent by the monitoring device (5) is acquired by the control device (4), installation deviation is recorded, GPS or Beidou signals are received, and longitude and latitude information of the photovoltaic panel (3) is recorded.
The photovoltaic panel (3) has a set maximum rotation angle and will not rotate when the rotation angle calculated by the control device (4) is greater than the set maximum value.
Example 2:
as shown in fig. 2, a single-axis photovoltaic tracking system includes a mounting bracket, a rotating shaft, a photovoltaic panel, a bidirectional stepping control motor, a control device, and a monitoring device;
as shown in fig. 3, in a single-axis photovoltaic tracking system, when a rotating shaft drives a photovoltaic panel to rotate, so that an angle 1 is the same as an angle 3, the photovoltaic panel is perpendicular to the sun in the rotating direction, and the maximum of strong illumination is realized.
The working process is as follows:
the mounting bracket is fixedly mounted on the ground through a base, so that the whole system is fixedly mounted; the rotating shaft is arranged on the mounting bracket through fixed rotating bearings at two ends of the bracket; the photovoltaic panel is fixedly arranged on the rotating shaft, and the light-sensitive surface of the photovoltaic panel faces the sunlight direction; the bidirectional stepping control motor is fixedly arranged on the fixed support and is connected with the rotating shaft through a gear; the monitoring device is arranged on the back of the photovoltaic panel, is parallel to the photovoltaic panel and has the same rotation angle with the photovoltaic panel; the control device is fixedly arranged on the mounting bracket, is connected with the monitoring device to receive angle real-time data, is connected with the bidirectional stepping control motor to control the bidirectional stepping control motor to rotate forwards/backwards, and has the function of receiving GPS or Beidou signals to acquire geographic information and current time of the control device.
After the system is installed, the system is set to a calibration state by the control device. The photovoltaic panel is placed in a horizontal state by using the level gauge, and the real-time rotation angle of the photovoltaic panel sent by the monitoring device is received by the control device and recorded as installation deviation.
After the calibration is completed, the system is set to a working state by the control device. The control device receives GPS or Beidou signals, acquires current time, records longitude and latitude information of the photovoltaic panel, calculates the optimal rotation angle of the photovoltaic panel, can be perpendicular to the sun in the rotation direction, the reading unit receives the current angle of the photovoltaic panel sent by the monitoring device, deducts deviation, calculates the angle of the photovoltaic panel in the forward direction/reverse direction, and starts to control the bidirectional stepping motor to rotate so as to drive the rotation shaft and the photovoltaic panel to rotate. The system enters a timing waiting state after the photovoltaic panel reaches the optimal corner through closed-loop control consisting of the monitoring device, the control device, the bidirectional stepping motor and the rotating shaft.
In order to facilitate the operation of the whole system, a time interval, such as five minutes or ten minutes, can be set as the calculation and control period of the control device. When the rotation angle of the photovoltaic panel is calculated again and driven to be adjusted by the control device in the next calculation period.
The maximum forward/reverse rotation angle (usually not exceeding 60 degrees) of the photovoltaic panel is set in view of the self weight of the photovoltaic panel and the bearing capacity of the bidirectional stepping control motor, and the photovoltaic panel does not rotate any more when the calculated optimal rotation angle is larger than the maximum rotation angle, and the maximum rotation angle still keeps 60 degrees.
When the time received by the control device indicates that the solar panel has sunset and does not reach sunrise, the control device is used for driving the photovoltaic panel to be in a horizontal state.
Example 3:
the invention also provides a photovoltaic tracking method, the specific implementation process of which is shown in fig. 3, and the method comprises the following steps:
s101: measuring the installation angle of the photovoltaic matrix as installation deviation, acquiring a GPS or Beidou signal, and recording geographic longitude and latitude information and current time of the photovoltaic panel;
s102: calculating and determining the optimal rotation angle of the photovoltaic panel according to the geographic longitude and latitude information of the photovoltaic panel, the current time and the current angle information of the photovoltaic panel measured in advance;
s103: determining the actual rotation angle of the photovoltaic panel according to the optimal rotation angle of the photovoltaic panel, and controlling the photovoltaic panel to rotate to a target angle according to the determined actual rotation angle;
s104: and the system enters a timing waiting state until the photovoltaic tracking process is repeated after a set waiting period.
Specifically, the step S102 of calculating and determining the optimal rotation angle of the photovoltaic panel according to the geographic longitude and latitude information of the photovoltaic panel, the current time, and the current angle information of the photovoltaic panel measured in advance includes:
when the current time is sunset and does not reach sunrise, the optimal rotation angle of the photovoltaic panel is rotated to be horizontal;
and when the current time is not in the sunset, calculating the optimal rotation angle of the photovoltaic panel, which is perpendicular to the sun in the rotation direction, according to the geographic longitude and latitude information of the photovoltaic panel, the current time and the current angle information of the photovoltaic panel.
Specifically, the step S103 of determining an actual rotation angle of the photovoltaic panel according to the optimal rotation angle of the photovoltaic panel, and controlling the photovoltaic panel to rotate to a target angle according to the determined actual rotation angle includes:
when the optimal rotation angle of the photovoltaic panel exceeds the set maximum angle, the photovoltaic panel is not rotated, and the actual rotation angle of the photovoltaic panel is zero;
when the optimal rotation angle of the photovoltaic panel does not exceed the set maximum angle, deducting the installation deviation to obtain the actual rotation angle of the photovoltaic panel;
and controlling the photovoltaic panel to rotate to reach a target angle according to the actual rotation angle of the photovoltaic panel.
Specifically, in step S104, the system enters a timing waiting state until the photovoltaic tracking process is repeated after a set waiting period, which includes:
and a set waiting period is used as a calculation and control period, and when the next calculation period is reached, the rotation angle of the photovoltaic panel is recalculated and driven to be adjusted.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.
Claims (15)
1. A single axis photovoltaic tracking system, the photovoltaic tracking system comprising a fixed mounting assembly; set up photovoltaic tracking system main part between fixed mounting subassembly, its characterized in that:
the photovoltaic tracking system main body comprises a rotating shaft (2), a photovoltaic panel (3), a control device (4) and a monitoring device (5);
the photovoltaic panel (3) is arranged on the fixed mounting assembly through a rotating shaft (2); the monitoring devices (5) are arranged on the back of the photovoltaic panel (3) in parallel; the control device (4) is arranged on the fixed mounting component;
the control device (4) is used for: and acquiring the position information of the photovoltaic panel (3), and driving the rotating shaft (2) to drive the photovoltaic panel (3) to rotate by combining the received real-time angle information of the photovoltaic panel (3) provided by the monitoring device (5).
2. The single-axis photovoltaic tracking system of claim 1, further comprising: a drive device;
the driving device comprises a rotating shaft driving gear (9), a motor driving gear (10) and a bidirectional stepping motor (6);
the bidirectional stepping motor (6) is arranged on the fixed mounting assembly, and one end of the bidirectional stepping motor is in transmission connection with the rotating shaft (2) through the motor driving gear (10) and the rotating shaft driving gear (9); the other end is connected with the control device (4);
the control device (4) calculates the optimal rotation angle of the photovoltaic panel (3) based on the position information of the photovoltaic panel (3) and the real-time angle information of the photovoltaic panel (3), and drives the rotation shaft (2) to drive the photovoltaic panel (3) to rotate to the optimal angle through the bidirectional stepping motor (6).
3. The single-axis photovoltaic tracking system according to claim 1, characterized in that the position information of the photovoltaic panel (3) comprises: the fixed inclination angle, the size, the geographical longitude and latitude and the current time of the photovoltaic panel (3).
4. The single-axis photovoltaic tracking system of claim 1,
the control device (4) is provided with a GPS or Beidou module and is used for acquiring longitude and latitude of the current geographic position and the current time;
the control device (4) is provided with a man-machine communication interface for a user to input the fixed inclination angle and the size information of the photovoltaic panel.
5. The single-axis photovoltaic tracking system of claim 1,
the control device (4) is provided with set calculation and control periods, the control device (4) reads geographical longitude and latitude once, current time and angle information of the photovoltaic panel in each period, the current optimal rotation angle of the photovoltaic panel is calculated according to the stored fixed inclination angle and size of the photovoltaic panel, the bidirectional stepping motor (6) is controlled to rotate forwards or backwards according to the received rotation angle of the photovoltaic panel fed back by the monitoring device (5), and when the set error precision requirement is met, the stepping motor stops rotating.
6. The single-axis photovoltaic tracking system according to claim 1, wherein the fixed mounting assembly comprises a low-end mounting bracket (1) and a high-end mounting bracket (11), each fixed to the ground by a base.
7. The single-axis photovoltaic tracking system of claim 6, further comprising a fixed rotational bearing;
the fixed rotating bearing comprises a bracket low-end fixed rotating shaft bearing (7) and a bracket high-end fixed rotating shaft bearing (8); the support low-end fixing rotating shaft bearing (7) is fixed on the low-end mounting support (1), and the support high-end fixing rotating shaft bearing (8) is fixed on the high-end mounting support (11).
8. The single-axis photovoltaic tracking system according to claim 1, characterized in that the light-sensitive surface of the photovoltaic panel (3) is facing the direction of insolation; the photovoltaic panel (3) is controlled to rotate to a horizontal angle after sunset and before sunrise.
9. The single-axis photovoltaic tracking system according to claim 1, characterized in that it has a calibration mode for obtaining real-time feedback values of the monitoring device (5) as installation deviations after the installation of the single-axis photovoltaic tracking system is completed.
10. The single-axis photovoltaic tracking system of claim 9, wherein the calibration mode comprises:
after the single-shaft photovoltaic tracking system is installed, the photovoltaic panel (3) is placed in a horizontal state by using the level ruler, the control device (4) acquires the current angle of the photovoltaic panel (3) sent by the monitoring device (5), records the current angle as installation deviation, receives GPS or Beidou signals, and records the longitude and latitude information of the photovoltaic panel (3).
11. The single-axis photovoltaic tracking system according to claim 1, characterized in that the photovoltaic panel (3) has a set maximum rotation angle, and will not rotate when the rotation angle calculated by the control means (4) is greater than the set maximum value.
12. A method of single axis photovoltaic tracking, comprising:
measuring the installation angle of the photovoltaic matrix as installation deviation, acquiring a GPS or Beidou signal, and recording geographic longitude and latitude information and current time of the photovoltaic panel;
calculating and determining the optimal rotation angle of the photovoltaic panel according to the geographic longitude and latitude information of the photovoltaic panel, the current time and the current angle information of the photovoltaic panel measured in advance;
determining the actual rotation angle of the photovoltaic panel according to the optimal rotation angle of the photovoltaic panel, and controlling the photovoltaic panel to rotate to a target angle according to the determined actual rotation angle;
and the system enters a timing waiting state until the photovoltaic tracking process is repeated after a set waiting period.
13. The single-axis photovoltaic tracking method according to claim 12, wherein the calculating and determining the optimal rotation angle of the photovoltaic panel according to the geographical longitude and latitude information of the photovoltaic panel, the current time and the current angle information of the photovoltaic panel comprises:
when the current time is sunset and does not reach sunrise, the optimal rotation angle of the photovoltaic panel is rotated to be horizontal;
and when the current time is not in the sunset, calculating the optimal rotation angle of the photovoltaic panel, which is perpendicular to the sun in the rotation direction, according to the geographic longitude and latitude information of the photovoltaic panel, the current time and the current angle information of the photovoltaic panel.
14. The single-axis photovoltaic tracking method of claim 13, wherein determining an actual rotation angle of the photovoltaic panel from the optimal rotation angle of the photovoltaic panel and controlling the rotation of the photovoltaic panel to the target angle from the determined actual rotation angle comprises:
when the optimal rotation angle of the photovoltaic panel exceeds the set maximum angle, the photovoltaic panel is not rotated, and the actual rotation angle of the photovoltaic panel is zero;
when the optimal rotation angle of the photovoltaic panel does not exceed the set maximum angle, deducting the installation deviation to obtain the actual rotation angle of the photovoltaic panel;
and controlling the photovoltaic panel to rotate to reach a target angle according to the actual rotation angle of the photovoltaic panel.
15. The single-axis photovoltaic tracking method of claim 12, wherein the system enters a timed wait state until after a set wait period, and the photovoltaic tracking process is repeated, comprising:
and a set waiting period is used as a calculation and control period, and when the next calculation period is reached, the rotation angle of the photovoltaic panel is recalculated and driven to be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113949337A (en) * | 2021-11-05 | 2022-01-18 | 南京佛莱斯特环保科技有限公司 | Photovoltaic panel sun tracking support and tracking method thereof |
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