Remote wireless communication system for land distributed wind power plant

Abstract

The utility model relates to a remote wireless communication system for an onshore distributed wind farm. The method is suitable for the field of land distributed wind power generation. The technical problem to be solved by the application is to provide a remote wireless communication system for an onshore distributed wind power plant. According to the technical scheme, the remote wireless communication system for the land distributed wind power plant comprises a wind power plant control center which is arranged in a wind power plant area and is provided with at least one Mesh device; the wind driven generator communication system is arranged in one-to-one correspondence with each wind turbine in the wind power plant and is provided with at least one Mesh device; and the Mesh equipment in the wind power plant control center and the Mesh equipment of each wind driven generator communication system in the wind power plant form a wireless Mesh network.

Description

Technical Field

[0001] This utility model relates to a long-range wireless communication system for onshore distributed wind farms. It is applicable to the field of onshore distributed wind power generation. Background Technology

[0002] With the booming development of new energy wind power generation, concentrated high-quality wind resources are becoming increasingly scarce, and the utilization of decentralized high-quality wind resources is receiving more and more attention. However, most decentralized wind farms are connected to the 10kV power grid line nearby. The 10kV power grid line has no communication line along the same route. At the same time, decentralized wind farms are connected to the grid at multiple points, and the distance between wind turbine generators at different grid connection points is relatively large and there is no collection line. The communication line path has a significant adverse impact on construction and project cost due to many uncertainties.

[0003] According to the communication and monitoring methods of distributed wind farms, wind turbine generators are centrally monitored and managed by operators in the control center. The wind turbine generators in distributed wind farms are scattered and far apart. Traditional VPN encrypted communication methods not only involve the public network, but also increase the risk of intrusion into the power grid. After the public network fails, it will affect the signal transmission of more than one wind turbine generator, reducing the controllability of the distributed wind farm control center in real-time monitoring of the wind turbine generators. On the other hand, it is difficult to select a suitable communication fiber optic cable route due to the scattered layout of distributed wind turbine generators. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a remote wireless communication system for onshore distributed wind farms, addressing the aforementioned problems.

[0005] The technical solution adopted in this utility model is: a long-range wireless communication system for onshore distributed wind farms, comprising:

[0006] The wind farm control center is located within the wind farm area and is equipped with at least one Mesh device;

[0007] The wind turbine communication system is set up one-to-one with each wind turbine in the wind farm and is equipped with at least one Mesh device.

[0008] The Mesh equipment in the wind farm control center and the Mesh equipment in the communication systems of each wind turbine in the wind farm form a wireless Mesh network.

[0009] The wind farm control center includes a switch, a large monitoring screen, a wind turbine computer monitoring system, and the Mesh device.

[0010] The Mesh devices are connected to the switch using Cat5e cables, as are the monitoring screen, the wind turbine computer monitoring system, and the switch.

[0011] The wind turbine communication system includes a switch, a video surveillance camera, a wind turbine generator control device, and the Mesh device.

[0012] The Mesh devices are connected to the switch using Cat5e cables, as are the video surveillance cameras, wind turbine control system, and the switch.

[0013] The beneficial effects of this utility model are: In this utility model, there is no need for a communication line between the wind farm control center and the wind turbine communication system. Information transmission is completed through the wireless network signal emitted by the Mesh device. Both the wind farm control center and the wind turbine communication system's Mesh device can send / receive signals to realize remote wireless communication function.

[0014] In this invention, each mesh device in the wind turbine communication system can independently complete data transmission, reception, and transmission. The wireless mesh network employs a mesh topology, a multi-point to multi-point network topology. Network nodes are connected wirelessly via adjacent network nodes in a multi-hop manner. A failure in any wind turbine communication system network node does not affect the signal transmission of other wind turbine communication systems. When any wind turbine communication network node is added or removed, the network can automatically detect the topology change and automatically adjust the communication route to determine the optimal multi-hop transmission path.

[0015] In this invention, the communication system between the wind farm control center and the wind turbine generator adopts a multi-point to multi-point network topology. The system employs a distributed control mode, with centralized monitoring and unified management by the wind farm control center as the guiding principle. The network nodes of the wind turbine generator communication system connect to adjacent network nodes via wireless multi-hop communication, preventing signal loss during wind turbine generator transmission.

[0016] This utility model enables real-time monitoring, centralized management, and remote control of wind turbine generators and other equipment in distributed wind farms by configuring Mesh devices, ensuring that each wind turbine generator and other equipment in the distributed wind farm is in a normal and stable operating state. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the network structure of a remote wireless communication system for onshore distributed wind farms in the embodiment.

[0018] 1. Mesh devices; 2. Switches; 3. Monitoring screens; 4. Wind turbine computer monitoring system; 5. Video surveillance cameras; 6. Wind turbine control and measurement devices. Detailed Implementation

[0019] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0020] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0021] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0022] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0023] like Figure 1 As shown, this embodiment provides a remote wireless communication system for onshore distributed wind farms, including: a wind farm control center and several wind turbine communication systems.

[0024] In this embodiment, the wind farm control center is located within the wind farm area, and a Mesh device is configured in the wind farm control center; the wind turbine communication system is configured one-to-one with each wind turbine in the wind farm, and a Mesh device is configured in the wind turbine communication system; the Mesh device in the wind farm control center and the Mesh devices of the communication systems of each wind turbine in the wind farm form a wireless Mesh network.

[0025] During normal operation, the mesh devices in the wind turbine communication system send out signals and automatically search for the nearest mesh device with the lowest bandwidth to transmit the signal. When the nearest mesh device with the lowest bandwidth in the network fails, the mesh devices in the wind turbine communication system continue to search for the nearest mesh device with the lowest bandwidth to transmit the signal, and so on, until the wind turbine signal is transmitted to the wind farm control center, so as to achieve the effect of distributed wind farm remote wireless communication.

[0026] In this embodiment, no communication line is required between the wind farm control center and the wind turbine communication system. Information transmission is completed through the wireless network signal emitted by the Mesh device. Both the wind farm control center and the wind turbine communication system's Mesh device can send / receive signals to achieve remote wireless communication function.

[0027] In this example, the communication system between the wind farm control center and the wind turbines adopts a multi-point to multi-point network topology. The system uses a distributed control mode, with the principle of centralized monitoring and unified management by the wind farm control center. The network nodes of the wind turbine communication system connect to other adjacent wind turbine communication system network nodes via wireless multi-hop to avoid signal loss during wind turbine transmission.

[0028] In this embodiment, each wind turbine communication system mesh device can independently complete data sending, receiving, and transmission. In the wireless mesh network, a mesh topology is adopted, which is a multi-point to multi-point network topology. Each network node is connected to other adjacent network nodes in a wireless multi-hop manner. The failure of any wind turbine communication system network node will not affect the signal transmission of other wind turbine communication systems.

[0029] In this embodiment, when any wind turbine communication network node in a distributed wind farm is added or removed, the network can automatically detect the topology change and automatically adjust the communication route to determine the optimal multi-hop transmission path.

[0030] In one specific embodiment, the wind farm control center includes a switch, a monitoring screen, a wind turbine computer monitoring system, and the Mesh device. The Mesh device is connected to the switch using Cat5e network cables, and the monitoring screen, the wind turbine computer monitoring system, and the switch are connected using Cat5e network cables.

[0031] The mesh equipment at the wind farm control center receives signals from the nearest mesh device with the lowest bandwidth, while the nearest mesh device with the lowest bandwidth simultaneously sends a signal to the communication system of the wind turbine being controlled. This enables the wind farm control center to centrally monitor and manage the wind turbine generators.

[0032] In a more specific embodiment, the wind turbine communication system includes a switch, a video surveillance camera, a wind turbine control device, and the Mesh device. The Mesh device is connected to the switch via a Cat5e network cable, and the video surveillance camera, the wind turbine control system, and the switch are connected via Cat5e network cables.

[0033] The wind turbine communication system automatically searches for nearby mesh devices with low bandwidth and transmits the signal to the wind farm monitoring center. If any wind turbine communication system fails, it does not affect other wind turbine communication devices; the remaining mesh devices will still automatically search for nearby mesh devices with low bandwidth within a 40km radius and transmit the signal to the wind farm control center.

[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A long-range wireless communication system for onshore distributed wind farms, characterized in that, include: The wind farm control center is located within the wind farm area and is equipped with at least one Mesh device; The wind turbine communication system is set up one-to-one with each wind turbine in the wind farm and is equipped with at least one Mesh device. The Mesh equipment in the wind farm control center and the Mesh equipment in the communication systems of each wind turbine in the wind farm form a wireless Mesh network.

2. The long-range wireless communication system for onshore distributed wind farms according to claim 1, characterized in that, The wind farm control center includes a switch, a large monitoring screen, a wind turbine computer monitoring system, and the Mesh device. The Mesh devices are connected to the switch using Cat5e cables, as are the monitoring screen, the wind turbine computer monitoring system, and the switch.

3. The long-range wireless communication system for onshore distributed wind farms according to claim 1, characterized in that, The wind turbine communication system includes a switch, a video surveillance camera, a wind turbine generator control device, and the Mesh device. The Mesh devices are connected to the switch using Cat5e cables, as are the video surveillance cameras, wind turbine control system, and the switch.

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