CN114553918A - Asynchronous communication's tracking support control system - Google Patents
Asynchronous communication's tracking support control system Download PDFInfo
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- CN114553918A CN114553918A CN202210078152.8A CN202210078152A CN114553918A CN 114553918 A CN114553918 A CN 114553918A CN 202210078152 A CN202210078152 A CN 202210078152A CN 114553918 A CN114553918 A CN 114553918A
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- 238000004891 communication Methods 0.000 title claims abstract description 175
- 238000003491 array Methods 0.000 claims abstract description 4
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000010248 power generation Methods 0.000 abstract description 6
- 230000004043 responsiveness Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a tracking support control system for asynchronous communication, which relates to the technical field of photovoltaic power generation, and comprises a communication box, wherein the communication box is provided with one communication box, the communication box comprises a plurality of communication channels and a high-speed data interface, and the communication box is connected with a background through the high-speed data interface; the control box is provided with a plurality of stations, the control boxes are divided into a plurality of communication micro-sub-arrays according to network topology, each communication micro-sub-array comprises a plurality of control boxes which are sequentially connected in series, and each communication micro-sub-array is communicated with the communication box through the communication channel; the communication box is used for acquiring and storing data information of the control box, and the background is used for acquiring the data information of the control box stored in the communication box. The invention can obtain higher data refreshing rate and greatly improve the operation intervention responsiveness.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a tracking support control system for asynchronous communication.
Background
With the rapid development of social economy, the energy consumption is higher and higher. Energy conservation and environmental protection become necessary conditions for sustainable development of human beings. People strengthen the development and utilization of renewable energy sources, and solar photovoltaic power generation becomes one of the hottest technologies in the world at present.
As is well known, the utilization of sunlight by a solar panel has a cosine effect, that is, the effective luminous flux received by the solar panel is equal to a cosine value obtained by multiplying the illuminance by the area of the panel and then multiplying the included angle between the sunlight and the normal of the panel. The cell panel can receive the maximum luminous flux only if the cell panel is opposite to the sun, namely the cosine value is equal to 1. Therefore, the photovoltaic power generation system with the automatic sun tracking capability can obviously improve the power generation efficiency.
At present, various sun tracking technologies are proposed, which can be mainly classified into single-axis tracking and double-axis tracking. The motion track of the sun relative to the ground plane can be mainly divided into two parameters of an altitude angle and an azimuth angle, only one parameter can be tracked by the single-axis tracking technology, and both parameters can be tracked by the double-axis tracking technology. At present, from the perspective of maturity, reliability and cost of the technology, the single-axis tracking technology has obvious advantages compared with the double-axis tracking technology.
Altitude angle of sun at certain time in certain areahAnd azimuth anglelIt can be calculated in the following way,
altitude angle of the sunhSatisfies the following conditions:
；
azimuth angle of sunlSatisfies the following conditions:
；
wherein: (1)
the local latitude is; (2)
the approximation formula is calculated for the akathic angle (unit: degrees) as:
Therefore, the solar altitude and azimuth at any local time can be calculated, and on the basis, the optimal tracking angle can be further calculated.
At present, a ground photovoltaic power station generally divides the whole photovoltaic power station into a plurality of subarrays in a photovoltaic subarray form, each subarray is provided with a communication box and a plurality of control boxes, each control box controls one or more rows of tracking supports, and the communication boxes adopt a data polling form to read data information and states of each control box and then forward the data information and the states to a background for centralized display. Generally, a photovoltaic power generation sub-array is provided with hundreds of tracking support control boxes, and polling once requires several minutes, so that the background data refreshing rate is very low, data information feedback is not timely enough, intervention reaction is slow after a fault occurs, and an operation risk is generated.
Disclosure of Invention
The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and to provide a tracking support control system for asynchronous communication.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a tracking support control system of asynchronous communication comprises,
the communication box is provided with one communication box, the communication box comprises a plurality of communication channels and a high-speed data interface, and the communication box is connected with the background through the high-speed data interface;
the control box is provided with a plurality of stations, the control boxes are divided into a plurality of communication micro-sub-arrays according to network topology, each communication micro-sub-array comprises a plurality of control boxes which are sequentially connected in series, and each communication micro-sub-array is communicated with the communication box through the communication message bar;
the communication box is used for acquiring and storing data information of the control box, and the background is used for acquiring the data information of the control box stored in the communication box.
As a preferable aspect of the asynchronous communication tracking support control system of the present invention, wherein: the communication channel comprises a wired communication channel and a wireless communication channel, and the communication micro-sub-array is communicated with the communication box through the wired communication channel or the wireless communication channel.
As a preferable solution of the asynchronous communication tracking support control system of the present invention, wherein: each of the control boxes includes a wired communication channel and/or a wireless communication channel.
As a preferable aspect of the asynchronous communication tracking support control system of the present invention, wherein: in the communication micro-subarray which communicates with a communication box through a wired communication channel, a plurality of control boxes are sequentially connected in series, and one control box at the end part is connected with the communication box.
As a preferable aspect of the asynchronous communication tracking support control system of the present invention, wherein: the communication frequency and the wireless address of the wireless communication channel in the communication box are the same as those of the wireless communication channel in the control box.
As a preferable aspect of the asynchronous communication tracking support control system of the present invention, wherein: the wired communication channel adopts a 485 communication mode.
As a preferable aspect of the asynchronous communication tracking support control system of the present invention, wherein: the wireless communication channel adopts a Lora wireless communication module.
The invention has the beneficial effects that:
according to the invention, the data information of each control box in the communication micro-subarrays connected on each communication channel is acquired and stored in the communication box through the communication box, and the background can acquire all the data information stored in the communication box at one time through the high-speed data interface, so that a higher data refreshing rate is obtained, the operation intervention responsiveness is greatly improved, and the operation risk is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an asynchronous communication tracking support control system provided by an embodiment;
wherein: 101. a communication box; 102. a control box; 103. a communication micro-sub-array; 104. a wired communication channel; 105. a wireless communication channel; 106. a high speed data interface.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The embodiment provides a tracking support control system for asynchronous communication, which comprises a communication box and a plurality of control boxes. The communication box is provided with a plurality of communication channels and a high-speed data interface. The communication box is connected with the background through a high-speed data interface.
The control boxes are divided into a plurality of communication micro-sub-arrays according to network topology, and each communication micro-sub-array comprises a plurality of control boxes which are sequentially connected in series. Each communication micro-subarray is communicated with the communication box through one communication channel, the communication channels for the communication of the plurality of communication micro-subarrays and the communication box are not in conflict with each other, and each communication micro-subarray is communicated with the communication box through a corresponding communication channel.
Wherein the communication channels in the communication box include a wireless communication channel and a wired communication channel. The communication micro-subarrays communicate with the communication box through a wired communication channel or a wireless communication channel.
It should be noted that each control box includes a wired communication channel and/or a wireless communication channel. After all the control boxes in the communication micro-subarray adopting the wired communication are sequentially connected in series, one control box at the end part is connected with the communication box through a wired communication channel to carry out communication. The communication frequency and the wireless address of the wireless communication channel in the control box are configured to be the same as those of a corresponding one of the wireless communication channels in the communication box. All control boxes in any communication micro-subarray adopting wireless communication communicate with the communication box through a corresponding wireless communication channel.
The communication box acquires and stores the data information of each control box through the communication channel, and then the background can acquire all the data information stored in the communication box at one time through the high-speed data interface, so that a high data refreshing rate is obtained.
Fig. 1 is a schematic diagram of an operating principle of an asynchronous communication tracking support control system provided in this embodiment. The asynchronous communication tracking support control system is composed of a communication box 101 and a control box 102. Several control boxes are divided into a communication micro-sub-array 103. The communication box has a plurality of wired communication channels 104, a plurality of wireless communication channels 105, and a high-speed data interface 106.
In this embodiment, one communication box and 100 control boxes are provided, and each 10 control boxes are divided into a communication micro-sub-array. The communication box has 5 wired communication channels and 5 wireless communication channels and 1 gigabit ethernet high-speed data interface.
In this embodiment, 5 wired communication channels adopt 485 bus forms, Modbus communication protocols. The 5 wireless communication channels adopt a Lora wireless module, the communication frequencies are respectively set to 431MHz, 432MHz, 433MHz, 434MHz and 435MHz, the wireless addresses are respectively set to 1001, 1002, 1003, 1004 and 1005, and a Modbus communication protocol is adopted.
When the communication box works, the communication box and the control boxes adopt an asynchronous communication mode, information and states of the control boxes are independently collected to the internal memory of the communication box for storage, and the background reads all data at one time through the high-speed data interface of the communication box. The background data refresh rate reaches once in 10 seconds, and if the conventional polling method is adopted, the background data refresh rate is once in 100 seconds. Therefore, by the asynchronous communication mode, the background data refreshing rate is greatly improved, and great benefits are brought to system operation and maintenance.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (7)
1. A tracking support control system for asynchronous communication, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the communication box is provided with one communication box, the communication box comprises a plurality of communication channels and a high-speed data interface, and the communication box is connected with the background through the high-speed data interface;
the control box is provided with a plurality of control boxes, the control boxes are divided into a plurality of communication micro-sub-arrays according to network topology, each communication micro-sub-array comprises a plurality of control boxes, and each communication micro-sub-array is communicated with the communication box through the communication channel;
the communication box is used for acquiring and storing data information of the control box, and the background is used for acquiring the data information of the control box stored in the communication box.
2. The asynchronous communication tracking mount control system of claim 1, wherein: the communication channel comprises a wired communication channel and a wireless communication channel, and the communication micro-sub-array is communicated with the communication box through the wired communication channel or the wireless communication channel.
3. The asynchronous communication tracking mount control system of claim 2, wherein: each of the control boxes includes a wired communication channel and/or a wireless communication channel.
4. The asynchronous communicating tracking mount control system of claim 3, wherein: in the communication micro-subarray which communicates with a communication box through a wired communication channel, a plurality of control boxes are sequentially connected in series, and one control box at the end part is connected with the communication box.
5. The asynchronous communication tracking support control system of claim 3, wherein: the communication frequency and the wireless address of the wireless communication channel in the communication box are the same as those of the wireless communication channel in the control box.
6. The asynchronous communication tracking mount control system of claim 2, wherein: the wired communication channel adopts a 485 communication mode.
7. The asynchronous communication tracking mount control system of claim 2, wherein: the wireless communication channel adopts a Lora wireless communication module.
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Application publication date: 20220527 |