CN110764539A - Photovoltaic tracker control system - Google Patents
Photovoltaic tracker control system Download PDFInfo
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- CN110764539A CN110764539A CN201911243360.3A CN201911243360A CN110764539A CN 110764539 A CN110764539 A CN 110764539A CN 201911243360 A CN201911243360 A CN 201911243360A CN 110764539 A CN110764539 A CN 110764539A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/20—Control of position or direction using feedback using a digital comparing device
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Abstract
The invention provides a photovoltaic tracker control system, comprising: the inclination angle monitoring device is used for monitoring the angle information of the main shaft of each photovoltaic tracker; the meteorological information monitoring device is used for monitoring meteorological information of a project place; the controller is used for respectively controlling each driving device according to the angle information of the main shaft of each photovoltaic tracker provided by the inclination angle monitoring device and the meteorological information of the project place provided by the meteorological information monitoring device; the driving device is used for rotating the main shaft of the photovoltaic tracker according to a control instruction of the controller; and the power supply device is used for supplying power to the controller. This photovoltaic tracker control system creatively proposes and uses little block control system electrical linkage technique, and the controller can control opening of every photovoltaic tracker array at will, and this system can also carry out fault detection and troubleshooting according to the information that inclination monitoring devices and meteorological information monitoring devices provided fast according to the weather to carry out accurate control to each drive arrangement, effectively promote system reliability.
Description
Technical Field
The invention relates to the technical field of photovoltaic tracker control, in particular to a photovoltaic tracker control system.
Background
At present, the photovoltaic tracking control technology mainly comprises two forms of independent unit tracking and linkage tracking: each row of photovoltaic supports of the independent tracking system is provided with an independent tracking device, the reliability of the independent tracking system is higher under the condition that the scale of the power station is smaller, but the construction cost and the operation cost are higher, and the fault rate is high and the reliability is low in a large-scale power station; the existing linkage tracking mode generally adopts mechanical linkage, a push-pull rod or a universal joint connecting rod is used for linking a plurality of rows of photovoltaic modules, and the universal joint connecting rod transmission structure has higher cost and is not suitable for popularization; and though the push-pull rod transmission structure has lower cost, the push rod is volatile under the action of cyclic load, the reliability is poor, and the operation and maintenance cost is high.
Therefore, the existing linkage tracking mode is poor in terrain adaptability and control accuracy, and once a fault occurs, the system is integrally stopped, so that the loss is large.
Disclosure of Invention
The invention provides a photovoltaic tracker control system, which is used for accurately controlling and quickly removing faults of a plurality of photovoltaic tracker arrays so as to improve photovoltaic power generation capacity, and comprises a controller, and a power supply device, a meteorological information monitoring device, a plurality of inclination angle monitoring devices and a plurality of driving devices which are connected with the controller, wherein:
the inclination angle monitoring device is used for monitoring the angle information of the main shaft of each photovoltaic tracker;
the meteorological information monitoring device is used for monitoring meteorological information of a project place;
the controller is used for respectively controlling each driving device according to the angle information of the main shaft of each photovoltaic tracker provided by the inclination angle monitoring device and the meteorological information of the project place provided by the meteorological information monitoring device;
the driving device is used for rotating the main shaft of the photovoltaic tracker according to a control instruction of the controller;
and the power supply device is used for supplying power to the controller.
In specific implementation, the photovoltaic tracker control system further comprises an upper computer, wherein:
the upper computer is connected with the controller and is used for remote monitoring and controlling the controller.
In specific implementation, the upper computer is connected with the controller through real-time transmission and ZigBee wireless transmission so as to carry out communication and data exchange.
In specific implementation, the tilt angle monitoring device comprises a hall sensor and a tilt angle sensor, wherein:
the sensor is arranged on the driving device and used for monitoring the angular displacement of the driving device;
the inclination angle sensor is arranged on the main shaft of the photovoltaic tracker and used for monitoring the inclination angle of the main shaft of the photovoltaic tracker.
In a specific implementation, the meteorological information monitoring device comprises one or any combination of a wind speed sensor, a rain and snow sensor and a radiation sensor.
In a specific implementation, the photovoltaic tracker control system further comprises a satellite positioning device, wherein:
the satellite positioning device is connected with the controller and used for acquiring geographic and time information of the project site;
the controller is further configured to eliminate the built-in clock error based on geographic and temporal information of the project site provided by the satellite positioning device.
In specific implementation, the photovoltaic tracker control system further includes a plurality of travel switches disposed on each photovoltaic tracker, wherein:
each travel switch is connected with the controller and used for monitoring the limit position of the main shaft of each photovoltaic tracker and limiting;
the controller is further used for obtaining the limit position and the limit information of the photovoltaic tracker main shaft provided by the travel switch body.
In specific implementation, the photovoltaic tracker control system further includes a plurality of control keyboards disposed on each photovoltaic tracker, wherein:
the control keyboard is connected with the controller and is used for manually keying in the rotation angle, the rotation speed and the reset of each driving device.
In a specific implementation, the photovoltaic tracker control system further includes a master switch, wherein:
the main switch is connected with the controller and is used for simultaneously turning on or off the plurality of driving devices.
In a specific implementation, the controller is connected with each driving device through a plurality of communication channels.
The invention provides a photovoltaic tracker control system, which comprises a controller, a power supply device, a meteorological information monitoring device, a plurality of inclination angle monitoring devices and a plurality of driving devices, wherein the power supply device, the meteorological information monitoring device, the plurality of inclination angle monitoring devices and the plurality of driving devices are connected with the controller: the inclination angle monitoring device is used for monitoring the angle information of the main shaft of each photovoltaic tracker; the meteorological information monitoring device is used for monitoring meteorological information of a project place; the controller is used for respectively controlling each driving device according to the angle information of the main shaft of each photovoltaic tracker provided by the inclination angle monitoring device and the meteorological information of the project place provided by the meteorological information monitoring device; the driving device is used for rotating the main shaft of the photovoltaic tracker according to a control instruction of the controller; the power supply device is used for supplying power to the controller. The photovoltaic tracker control system creatively provides an electric linkage technology using a small block control system, each array of a small block array is provided with a driving device, but the same controller is shared, and the controller can randomly control the start and stop of each array, so that the operation of other arrays cannot be influenced when a certain array fails; meanwhile, the system can rapidly carry out fault detection and fault removal according to information provided by the inclination angle monitoring device and the meteorological information monitoring device according to the weather, and accurately control each driving device, so that the reliability of the system is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. In the drawings:
FIG. 1 is a schematic block diagram of a photovoltaic tracker control system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a configuration of an image information monitoring apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a tilt angle monitoring device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a photovoltaic tracker control system in accordance with an embodiment of the present invention;
FIG. 5 is a schematic diagram of a photovoltaic tracking system in accordance with an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
As shown in fig. 1 and 4, the present invention provides a photovoltaic tracker control system, which is used for performing accurate control and rapid troubleshooting on a plurality of photovoltaic tracker arrays, so as to improve photovoltaic power generation capacity, and the photovoltaic tracker control system includes a controller 1, and a power supply device 5, a meteorological information monitoring device 3, a plurality of inclination angle monitoring devices 2, and a plurality of driving devices 4, which are connected to the controller 1, wherein:
the inclination angle monitoring device 2 is used for monitoring the angle information of the main shaft of each photovoltaic tracker;
a weather information monitoring device 3 for monitoring weather information of a project site;
the controller 1 is used for respectively controlling each driving device 4 according to the angle information of each photovoltaic tracker main shaft provided by the inclination angle monitoring device 2 and the meteorological information of the project place provided by the meteorological information monitoring device 3;
the driving device 4 is used for rotating the main shaft of the photovoltaic tracker according to a control instruction of the controller 1;
and a power supply device 5 for supplying power to the controller 1.
In specific implementation, as shown in fig. 1, in order to enable the system to perform cloud operation in time when the system fails in the operation process and rapidly process the failure, the photovoltaic tracker control system may further include an upper computer 6, wherein: the upper computer 6 is connected with the controller 1 and used for remotely monitoring and controlling the controller 1.
In specific implementation, the connection between the upper computer 6 and the controller 1 can have various embodiments. For example, as shown in fig. 1 and 4, the upper computer 6 and the controller 1 may be connected through real-time transmission and ZigBee wireless transmission to perform communication and data exchange. The processor carries out data transmission and communication with the upper computer 6 through real-time transmission and Zigbee wireless transmission, and the upper computer 6 can compare and judge the two acquired data and arrange accurate transmission data, so that the problem of packet loss in the communication process is effectively avoided.
In specific implementation, the inclination angle monitoring device 2 can be arranged in various embodiments. For example, as shown in fig. 2, the tilt monitoring device 2 may include a hall sensor 201 and a tilt sensor 202, wherein: the sensor is arranged on the driving device 4 and used for monitoring the angular displacement of the driving device 4; the inclination angle sensor 202 is arranged on the main shaft of the photovoltaic tracker and used for monitoring the inclination angle of the main shaft of the photovoltaic tracker. The hall sensor 201 on the driving device 4 can acquire parameters such as angular displacement of the motor, and the like, and the parameters are compared with the main shaft inclination angle information of the inclination angle sensor 202, so that closed-loop control is realized.
In specific implementation, the meteorological information monitoring device can be arranged in various embodiments. For example, as shown in fig. 3, the meteorological information monitoring apparatus 3 may include one or any combination of a wind speed sensor 301, a rain and snow sensor 302, and a radiation sensor 303. Controller 1 is connected and data transmission with meteorological information monitoring devices 3, can acquire meteorological information, and then carries out accurate control to photovoltaic tracker to bad weather condition with effective protection, improves photovoltaic tracking system's security.
In specific implementation, the system can also acquire the geographic and time information of the project site to eliminate the error of a built-in clock, and the acquisition of the geographic and time information of the project site can be implemented in various modes. For example, as shown in fig. 1, the photovoltaic tracker control system may further comprise a satellite positioning device 7, wherein: the satellite positioning device 7 is connected with the controller 1 and is used for acquiring the geographic and time information of the project site; the controller 1 may then be further arranged to remove the built-in clock error based on the geographical and temporal information of the project site provided by the satellite positioning means 7. Further, the satellite positioning device 7 may be a GPS positioning device.
In a specific implementation, as shown in fig. 1, in order to further ensure system safety, the photovoltaic tracker control system may further include a plurality of travel switches 8 disposed on each photovoltaic tracker, wherein: each travel switch 8 is connected with the controller 1 and used for monitoring the limit position of each photovoltaic tracker main shaft and limiting; the controller 1 is further used for acquiring limit position and limit information of the main shaft of the photovoltaic tracker, which is provided by the travel switch 8 body. The travel switch 8 arranged on the main shaft of the photovoltaic tracker can effectively detect and limit the running limit position of the photovoltaic tracker, so that the running range of a rotor of the photovoltaic tracker is limited, and the system safety can be ensured even if part of the rotor fails.
In specific implementation, as shown in fig. 1, in order to facilitate maintenance of the photovoltaic tracker by an operator, the photovoltaic tracker control system may further include a plurality of control keyboards 9 disposed on each photovoltaic tracker, wherein: the control keyboard 9 is connected with the controller 1 and is used for manually keying in the rotation angle, the rotation speed and the reset of each driving device 4. The control keyboard 9 can enable a worker to customize according to an application target of the controller 1 during maintenance, and besides a one-key reset function, the photovoltaic tracker can be controlled to set a rotation angle and a rotation speed.
In a specific implementation, as shown in fig. 1, in order to facilitate the on-site debugging and operation and maintenance of the staff, the photovoltaic tracker control system may further include a main switch 10, where: a master switch 10 is connected to the controller 1 for simultaneously turning on or off the plurality of driving devices 4.
In specific implementation, the connection between the controller 1 and each driving device 4 can be implemented in various ways. For example, the controller 1 may be connected to each of the driving devices 4 through a plurality of communication channels in order to efficiently control each of the driving devices 4 independently.
In specific implementation, as shown in fig. 4 and 5, the controller 1 may be an MCU microcomputer motherboard, and the MCU microcomputer motherboard may be provided with a priority determination unit and a driving module connected thereto, and the driving module may be directly connected to the driving device 4, and the priority determination unit may perform priority determination, comprehensive data comparison and processing on various data obtained by the MCU microcomputer motherboard at any time, such as wind speed, rain and snow, radiation, angular displacement, tilt angle, geographical and time information, control keyboard 9 information, and travel switch 8 information, so as to improve the accuracy of the photovoltaic tracker and maximize the generated energy.
In summary, the photovoltaic tracker control system provided by the present invention includes a controller, and a power supply device, a meteorological information monitoring device, a plurality of tilt angle monitoring devices, and a plurality of driving devices connected to the controller: the inclination angle monitoring device is used for monitoring the angle information of the main shaft of each photovoltaic tracker; the meteorological information monitoring device is used for monitoring meteorological information of a project place; the controller is used for respectively controlling each driving device according to the angle information of the main shaft of each photovoltaic tracker provided by the inclination angle monitoring device and the meteorological information of the project place provided by the meteorological information monitoring device; the driving device is used for rotating the main shaft of the photovoltaic tracker according to a control instruction of the controller; the power supply device is used for supplying power to the controller. The photovoltaic tracker control system creatively provides an electric linkage technology using a small block control system, each array of a small block array is provided with a driving device, but the same controller is shared, and the controller can randomly control the start and stop of each array, so that the operation of other arrays cannot be influenced when a certain array fails; meanwhile, the system can rapidly carry out fault detection and fault removal according to information provided by the inclination angle monitoring device and the meteorological information monitoring device according to the weather, and accurately control each driving device, so that the reliability of the system is effectively improved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A photovoltaic tracker control system, photovoltaic tracker control system includes controller and the power supply unit, meteorological information monitoring device, a plurality of inclination monitoring device and a plurality of drive arrangement that link to each other with the controller, wherein:
the inclination angle monitoring device is used for monitoring the angle information of the main shaft of each photovoltaic tracker;
the meteorological information monitoring device is used for monitoring meteorological information of a project place;
the controller is used for respectively controlling each driving device according to the angle information of the main shaft of each photovoltaic tracker provided by the inclination angle monitoring device and the meteorological information of the project place provided by the meteorological information monitoring device;
the driving device is used for rotating the main shaft of the photovoltaic tracker according to a control instruction of the controller;
and the power supply device is used for supplying power to the controller.
2. The photovoltaic tracker control system of claim 1, further comprising an upper computer, wherein:
the upper computer is connected with the controller and is used for remote monitoring and controlling the controller.
3. The photovoltaic tracker control system of claim 2, wherein the upper computer and the controller are connected through real-time transmission and ZigBee wireless transmission for communication and data exchange.
4. The photovoltaic tracker control system of claim 1, wherein the tilt monitoring device comprises a hall sensor and a tilt sensor, wherein:
the sensor is arranged on the driving device and used for monitoring the angular displacement of the driving device;
the inclination angle sensor is arranged on the main shaft of the photovoltaic tracker and used for monitoring the inclination angle of the main shaft of the photovoltaic tracker.
5. The photovoltaic tracker control system of claim 1, wherein the meteorological information monitoring device comprises one or any combination of a wind speed sensor, a rain and snow sensor, and a radiation sensor.
6. The photovoltaic tracker control system of claim 1, wherein the photovoltaic tracker control system further comprises a satellite positioning device, wherein:
the satellite positioning device is connected with the controller and used for acquiring geographic and time information of the project site;
the controller is further configured to eliminate the built-in clock error based on geographic and temporal information of the project site provided by the satellite positioning device.
7. The photovoltaic tracker control system of claim 1, further comprising a plurality of travel switches disposed at each photovoltaic tracker, wherein:
each travel switch is connected with the controller and used for monitoring the limit position of the main shaft of each photovoltaic tracker and limiting;
the controller is further used for obtaining the limit position and the limit information of the photovoltaic tracker main shaft provided by the travel switch body.
8. The photovoltaic tracker control system of claim 1, further comprising a plurality of control keypads disposed on each photovoltaic tracker, wherein:
the control keyboard is connected with the controller and is used for manually keying in the rotation angle, the rotation speed and the reset of each driving device.
9. The photovoltaic tracker control system of claim 1, further comprising a master switch, wherein:
the main switch is connected with the controller and is used for simultaneously turning on or off the plurality of driving devices.
10. The photovoltaic tracker control system of claim 1, wherein the controller is connected to each of the drives via a plurality of communication channels.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911243360.3A CN110764539A (en) | 2019-12-06 | 2019-12-06 | Photovoltaic tracker control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911243360.3A CN110764539A (en) | 2019-12-06 | 2019-12-06 | Photovoltaic tracker control system |
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| CN110764539A true CN110764539A (en) | 2020-02-07 |
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| CN201911243360.3A Pending CN110764539A (en) | 2019-12-06 | 2019-12-06 | Photovoltaic tracker control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113253767A (en) * | 2021-05-18 | 2021-08-13 | 江苏中信博新能源科技股份有限公司 | Photovoltaic power station closed-loop tracking control system and method |
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