Photovoltaic module temperature acquisition device

Abstract

The utility model discloses a photovoltaic module temperature acquisition device, which relates to the technical field of photovoltaic power generation and comprises a plurality of terminal nodes, a plurality of routing nodes and a network node. Each terminal node comprises a temperature sensor and a first controller connected with the temperature sensor; the temperature sensors of the plurality of terminal nodes are respectively arranged on the back surfaces of different photovoltaic modules in the photovoltaic power station; the first controllers of a part of terminal nodes are in communication connection with the routing node, and the first controller of the other terminal node is in communication connection with the network node; the plurality of routing nodes are connected with each other and then merged into the network node; through reasonable arrangement of the terminal nodes, the routing nodes and the network nodes, collection and uploading of temperature data of all the photovoltaic modules selected by the distribution points are realized, so that basic data are provided for accurate prediction of photovoltaic power generation power, and the reliability of photovoltaic power generation is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic component temperature collection device. Background Art

[0002] As the most abundant and most promising clean energy among renewable energy sources, solar energy has become an important direction for my country's energy structure adjustment. However, photovoltaic power generation has strong randomness and intermittency. Therefore, it has become an urgent task to carry out photovoltaic power generation power forecasting.

[0003] Temperature is an important factor affecting photovoltaic power generation. Currently, photovoltaic power stations mostly use centralized measurement equipment to collect the actual temperature of the power station. Since photovoltaic power stations usually occupy a large area, the number of centralized temperature measurement devices is limited and they are often placed in specific locations of the power station, which leads to uneven spatial coverage. However, the temperature may vary greatly at different locations of the power station, especially in areas with complex terrain or greatly affected by the surrounding environment.

[0004] However, the existing method currently uses centralized measurement equipment to obtain the temperature of photovoltaic modules. This method is too centralized in temperature collection and cannot accurately collect the temperature of each photovoltaic module, resulting in large errors in the collected temperature data, which reduces the reliability of photovoltaic power generation. Utility Model Content

[0005] In view of the deficiency of the prior art that the centralized arrangement of measuring equipment cannot accurately collect the temperature of each photovoltaic module, resulting in large errors in the collected temperature data, thereby reducing the reliability of photovoltaic power generation, the utility model provides a photovoltaic module temperature collection device, which can reasonably arrange all photovoltaic modules, set terminal nodes for the photovoltaic modules selected for the arrangement, reasonably configure and arrange routing nodes and network nodes, so as to realize the collection and uploading of the temperature data of all photovoltaic modules selected for the arrangement to a server, thereby providing basic data for realizing the accurate prediction of photovoltaic power generation power and solving the problems existing in the prior art.

[0006] A photovoltaic module temperature collection device includes: a plurality of terminal nodes, a plurality of routing nodes and a network node;

[0007] Each of the terminal nodes includes a temperature sensor and a first controller connected to the temperature sensor; the temperature sensors of the plurality of terminal nodes are respectively arranged on the back of different photovoltaic modules in the photovoltaic power station;

[0008] The first controllers of a part of the terminal nodes are communicatively connected to the routing node, and the first controllers of another part of the terminal nodes are communicatively connected to the network node;

[0009] After the plurality of routing nodes are connected to each other, they are incorporated into the network node.

[0010] Furthermore, the routing node includes a second controller; the second controller is bidirectionally connected to the first controllers of a portion of the terminal nodes.

[0011] Furthermore, the network node includes a third controller; the third controller is bidirectionally connected to the second controllers of a plurality of the routing nodes and the first controllers of another part of the terminal nodes.

[0012] Furthermore, the network node also includes a mobile communication module, and the mobile communication module is bidirectionally connected to the third controller and the server of the network node respectively; the mobile communication module adopts a 4G communication module.

[0013] Furthermore, the temperature sensor is a semiconductor temperature sensor.

[0014] Furthermore, the first controller, the second controller and the third controller all adopt STM32F101C8T6 model single chip microcomputer.

[0015] Furthermore, it also includes: batteries are installed in the terminal nodes, routing nodes and network nodes.

[0016] Furthermore, the communication connection method adopts wireless communication.

[0017] The utility model provides a photovoltaic module temperature collection device, which has the following beneficial effects:

[0018] The device sets terminal nodes and temperature sensors on the back of different photovoltaic modules selected by the photovoltaic power station, and collects the operating temperature of the corresponding photovoltaic modules through the temperature sensors; reasonably configures and arranges routing nodes and network nodes to accurately collect the temperature of each photovoltaic module, and finally collects and uploads the temperature data of all photovoltaic modules selected by the distribution points to the server through the network nodes, thereby providing basic data for the accurate prediction of photovoltaic power generation, effectively improving the reliability of photovoltaic power generation, and providing basic support for the safe and stable operation of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a photovoltaic module temperature collection device in an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the structure of a terminal node in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of a routing node in an embodiment of the present invention;

[0022] Figure 4 Schematic diagram of the structure of a network node in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] like Figure 1 As shown, the utility model provides a photovoltaic module temperature acquisition device, which includes three parts: multiple terminal nodes, multiple routing nodes and a network node. Each terminal node includes a temperature sensor and a first controller connected to the temperature sensor; the temperature sensors of multiple terminal nodes are respectively arranged on the back of different photovoltaic modules in the photovoltaic power station; the first controller of a part of the terminal nodes is connected to the routing node for communication, and the first controller of another terminal node is connected to the network node for communication; after the multiple routing nodes are connected to each other, they are merged into the network node.

[0025] like Figure 2 As shown, the terminal node includes a semiconductor temperature sensor, a controller, a wireless communication module and a battery; the terminal node is set on the back of the photovoltaic module selected for the deployment point, and the routing node and the network node are reasonably arranged within the communication range according to the actual position of each terminal node; the temperature sensor of the terminal node is a semiconductor temperature sensor, which provides high-precision photovoltaic module operating temperature data. The temperature sensor in the terminal node is used to measure the actual operating temperature of the photovoltaic module selected for the deployment point; the first controller is connected to the temperature sensor for collecting temperature data and processing it; the wireless communication module is connected to the controller for sending the processed temperature data to the routing node or the network node, or receiving control commands from the routing node or the network node; the battery is connected to the temperature sensor, the first controller and the wireless communication module for powering it. The terminal node is set on the back of the photovoltaic module selected for the deployment point to realize the collection of the operating temperature of the photovoltaic module. The routing node and the network node are reasonably arranged within the communication range according to the actual position of each terminal node to realize the forwarding and uploading of temperature data, as well as the issuance and forwarding of control commands.

[0026] like Figure 3 As shown, the routing node includes a second controller, a wireless communication module and a battery; the second controller in the routing node is connected to the wireless communication module, receives temperature data from the terminal node and forwards it to other routing nodes or network nodes, or receives control commands from network nodes or other routing nodes and forwards them to the terminal node. The battery is connected to the second controller and the wireless communication module to power them.

[0027] like Figure 4As shown, the network node includes a third controller, a wireless communication module, a mobile communication module and a battery; the wireless communication module in the network node is connected to the third controller, and is used to receive and process temperature data forwarded from a terminal node or a routing node, or to send a control command of the third controller to the terminal node or the routing node; the third controller is connected to the mobile communication module, and is used to upload the processed temperature data to a cloud server; the battery is connected to the wireless communication module, the third controller and the mobile communication module, and is used to power them.

[0028] The first controller, the second controller and the third controller all use STM32F101C8T6 microcontrollers, the wireless communication module uses the ZigBee protocol, the battery uses two No. 5 batteries, and the mobile communication module uses a 4G communication module.

[0029] The invention discloses a working principle of a photovoltaic module temperature acquisition device. The controller of a terminal node receives a temperature acquisition control command issued by a wireless communication module, obtains temperature data measured by a temperature sensor after parsing, and sends the temperature data to the wireless communication module for uploading after processing. The controller of a routing node forwards the temperature acquisition control command issued by the wireless communication module, or forwards the collected temperature data uploaded by the wireless communication module. The controller of a network node issues a temperature acquisition control command through the wireless communication module, or summarizes the temperature data uploaded by the wireless communication module, and sends the collected temperature data to a mobile communication module after processing. The controller is implemented by a single-chip microcomputer, and the wireless communication module adopts the ZigBee protocol. The wireless communication module of the terminal node is used to upload the temperature data, or receive the control command from the network node or the routing node. The wireless communication module of the routing node is used to forward the temperature data from the terminal node, or forward the control command from other routing nodes or network nodes. The wireless communication module of the network node is used to receive the temperature data uploaded by the terminal node or the temperature data forwarded by the routing node, or send the control command of the node controller to the terminal node or the routing node. The mobile communication module adopts a 4G communication module, and is used to upload the temperature data summarized and processed by the network node controller to a server, or receive the control command issued by the server.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A photovoltaic module temperature collection device, characterized in that: include: multiple terminal nodes, multiple routing nodes, and a network node; Each of the terminal nodes includes a temperature sensor and a first controller connected to the temperature sensor; the temperature sensors of the plurality of terminal nodes are respectively arranged on the back of different photovoltaic modules in the photovoltaic power station; The first controllers of a part of the terminal nodes are communicatively connected to the routing node, and the first controllers of another part of the terminal nodes are communicatively connected to the network node; After the plurality of routing nodes are connected to each other, they are incorporated into the network node.

2. A photovoltaic module temperature collection device according to claim 1, characterized in that: The routing node includes a second controller; the second controller is bidirectionally connected to the first controllers of a portion of the terminal nodes.

3. A photovoltaic module temperature collection device according to claim 2, characterized in that: The network node comprises a third controller; the third controller is bidirectionally connected to the second controllers of the plurality of routing nodes and the first controllers of another part of the terminal nodes.

4. A photovoltaic module temperature collection device according to claim 3, characterized in that: The network node also includes a mobile communication module, which is bidirectionally connected to a third controller and a server of the network node respectively; the mobile communication module adopts a 4G communication module.

5. A photovoltaic module temperature collection device according to claim 1, characterized in that: The temperature sensor is a semiconductor temperature sensor.

6. A photovoltaic module temperature collection device according to claim 3, characterized in that: The first controller, the second controller and the third controller all adopt STM32F101C8T6 model single chip microcomputer.

7. A photovoltaic module temperature collection device according to claim 1, characterized in that: Also includes: The terminal nodes, routing nodes and network nodes are all equipped with batteries.

8. A photovoltaic module temperature collection device according to claim 1, characterized in that: The communication connection mode adopts wireless communication.

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