Offshore wind turbine internet communication system and offshore wind farm

Abstract

The application provides an offshore wind turbine internet communication system and offshore wind farm, and a real-time 5G backup ring-shaped double physical network is formed for the offshore wind farm, each device is connected through the two ring-shaped networks, and a redundant 5G communication link is arranged, so that the communication problem caused by the double fault nodes of the existing network can be solved, and the reliability and safety of the entire data network are enhanced.

Description

Technical Field

[0001] This invention relates to the field of communication technology for offshore wind farms, and more specifically, to an internet communication system for offshore wind turbines and an offshore wind farm. Background Technology

[0002] Currently, wind farm communication networks link local control computing, central control room monitoring units, and other equipment through a single physical ring network. Physically, these are all ring network topologies, but logically they are chain or tree topologies. The number of nodes on the ring is related to equipment performance, traffic flow, and transmission distance. Shortcomings in various performance requirements and technical parameters directly affect the quality of data communication.

[0003] In a ring network, devices are interconnected to form a closed loop. If any node on the network fails, causing a break in the network, the connected devices can still function through other means, using protocols such as RSTP (Rapid Spanning Tree Protocol) or STP (Spanning Tree Protocol) for self-healing reconnection. In a ring architecture, only a single point of failure is covered. Data flows back to another ring via a node closer to the failure, allowing the data flow to maintain its connection with the destination node through a long path. However, if any double failure point occurs, part or the entire ring network will experience data loss and communication failure due to the communication interruption. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an offshore wind turbine internet communication system, comprising: a first ring network, a second ring network, and redundant 5G communication links; the first ring network connects local control units and a central monitoring unit of multiple wind turbine generators; the second ring network connects the local control units and the central monitoring unit of the multiple wind turbine generators; both the first and second ring networks include cables and aggregation layer devices; the cables in the first ring network connect the multiple wind turbine generators and the aggregation layer devices in a ring structure, and connect the aggregation layer devices to the central monitoring unit; the cables in the second ring network connect the multiple wind turbine generators and the aggregation layer devices in a ring structure, and connect the aggregation layer devices to the central monitoring unit; the redundant 5G communication links connect the local control units and the central monitoring unit of the multiple wind turbine generators.

[0005] Optionally, the redundant 5G communication link connects the aggregation layer device of the first ring network, the aggregation layer device of the second ring network, and the central monitoring unit.

[0006] Optionally, the aggregation layer device of the first ring network is connected to the aggregation layer device of the second ring network.

[0007] Optionally, the aggregation layer device of the first ring network and the aggregation layer device of the second ring network are connected by a cable or by the redundant 5G communication link.

[0008] Optionally, the redundant 5G communication link includes multiple 5G base stations, which form a ring network. Each 5G base station is connected to at least one local control unit of a wind turbine generator set. At least one 5G base station is connected to the aggregation layer device of the first ring network, at least one 5G base station is connected to the aggregation layer device of the second ring network, and at least one 5G base station is connected to the central monitoring unit.

[0009] Optionally, the aggregation layer devices of the first ring network and the aggregation layer devices of the second ring network serve as hot backups for each other.

[0010] Optionally, the aggregation layer device of the first ring network is connected to the first backup aggregation layer device; and / or, the aggregation layer device of the second ring network is connected to the second backup aggregation layer device.

[0011] Optionally, the first ring network is connected to the first central monitoring unit; the second ring network is connected to the second central monitoring unit.

[0012] Optionally, the cable is an optical fiber.

[0013] This invention provides an offshore wind farm, including wind turbine generators, a booster station, and an internet communication system for the aforementioned offshore wind turbine generators.

[0014] This invention provides a real-time 5G backup ring dual physical network for offshore wind farms. The devices are connected through two ring networks and redundant 5G communication links are provided. This can solve the communication problems caused by dual fault nodes in the existing network and enhance the reliability and security of the entire data network. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an offshore wind farm communication network system according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of another offshore wind farm communication network system according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of another offshore wind farm communication network system according to an embodiment of the present invention. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0020] The solution provided in this invention is mainly used for communication between wind turbine generators, substations, and other equipment in offshore wind farms. Based on a real-time 5G backup ring dual physical network, it is applicable to the communication implementation of wind turbine generators and the central control unit of the substation in all wind farms. In any case of a dual fault node, the worst-case scenario is that only one wind turbine generator can be affected.

[0021] In this embodiment of the invention, for the single-physical fiber optic ring network structure in the local control computing unit and central monitoring unit of a wind farm, the communication switching equipment, communication lines, aggregation layer switching equipment, and monitoring equipment are connected via 5G. By connecting the devices in the local control computing unit and the central monitoring unit via ring network links and providing 5G backup connections, a dual-backup redundant network that is independent and highly available to each other is established.

[0022] Taking offshore wind farms as an example, the system involves three components: a local control computing unit, a central monitoring unit, and a communication network. The local control computing unit is installed in the cabinet at the bottom of a single wind turbine tower or in the nacelle cabinet. The central monitoring unit is installed in the main control room of the wind farm's booster station. The communication network can use single-mode armored optical cables to connect the local control computing unit and the central monitoring unit via a network.

[0023] Conventional offshore wind farms typically use a ring-shaped single physical network topology, connecting individual communication units via optical fibers. However, this approach fails to address the issue of dual failures and cannot meet the real-time and rapid self-healing requirements of industrial communication. In this embodiment of the invention, all devices in the entire system are connected to a ring-shaped dual physical network. The first and second ring networks are configured in a ring structure and operate independently. An additional 5G configuration is implemented in the aggregation layer switching equipment, enabling a 5G topology outside the first and second ring networks. When the first and second ring networks fail, the 5G encrypted link intervenes and takes over the work of the faulty components, thereby reducing system downtime.

[0024] This invention provides an offshore wind turbine internet communication system, comprising: a first ring network, a second ring network, and redundant 5G communication links.

[0025] The first ring network connects the local control units and central monitoring units of multiple wind turbine generators; the second ring network also connects the local control units and central monitoring units of the aforementioned multiple wind turbine generators.

[0026] Specifically, both the first ring network and the second ring network include cables and aggregation layer equipment. The cables in the first ring network connect the multiple wind turbine generators and the aggregation layer equipment in a ring structure, and also connect the aggregation layer equipment to the central monitoring unit. Similarly, the cables in the second ring network connect the multiple wind turbine generators and the aggregation layer equipment in a ring structure, and also connect the aggregation layer equipment to the central monitoring unit. For example, the cables are optical fibers.

[0027] Furthermore, the aforementioned redundant 5G communication links connect the local control units and central monitoring units of multiple wind turbine generators.

[0028] There can be multiple central monitoring units, which are respectively connected to the first ring network and the second ring network. For example, the first ring network is connected to the first central monitoring unit, and the second ring network is connected to the second central monitoring unit.

[0029] In this embodiment of the invention, a ring dual physical network with real-time 5G backup is constructed for offshore wind farms. Each device is connected through two ring networks and redundant 5G communication links are set up. This can solve the communication problems caused by dual fault nodes in the existing network and enhance the reliability and security of the entire data network.

[0030] Based on the redundant 5G communication links connecting the local control units and central monitoring units of multiple wind turbine generators, the redundant 5G communication links can also further connect the aggregation layer equipment of the first ring network, the aggregation layer equipment of the second ring network, and the central monitoring unit. In the event of a cable fault between the aggregation layer equipment and the central monitoring unit, they can still communicate via 5G to provide additional 5G backup and reduce network failures.

[0031] Furthermore, the aggregation layer device of the first ring network is connected to the aggregation layer device of the second ring network, thereby connecting the first ring network and the second ring network. If one of them has a fault point, communication can be achieved through the other ring network.

[0032] Specifically, the aggregation layer devices of the first ring network and the aggregation layer devices of the second ring network are connected by cables or by redundant 5G communication links.

[0033] Specifically, the aggregation layer devices of the first ring network and the second ring network serve as hot backups for each other. If one of them fails or other devices are unable to communicate with it, the system can switch to the other aggregation layer device, enabling data communication to reach the aforementioned first and second central monitoring units. Furthermore, additional backup aggregation layer devices can be configured. For example, the aggregation layer device of the first ring network is connected to the first backup aggregation layer device; and / or, the aggregation layer device of the second ring network is connected to the second backup aggregation layer device.

[0034] Specifically, the aforementioned redundant 5G communication links include multiple 5G base stations forming a ring network, each 5G base station being connected to at least one local control unit of a wind turbine generator set; and at least one 5G base station being connected to the aggregation layer equipment of the first ring network, at least one 5G base station being connected to the aggregation layer equipment of the second ring network, and at least one 5G base station being connected to the central monitoring unit.

[0035] In its simplest form, the ring-shaped dual-physical network in this embodiment of the invention includes a local control computing unit, a first central monitoring unit, and a first communication link network. The first communication link includes a complete set of switching equipment, communication cables, aggregation layer switching equipment, etc. The first central monitoring unit can be connected to the wind turbine generators in the offshore wind farm ring network through the communication link network.

[0036] The second ring network in the offshore wind farm communication system includes a ground control computing unit, a second central monitoring unit, and a second communication link network. The second communication link includes a complete set of switching equipment, communication cables, and aggregation layer switching equipment. The second central monitoring unit can connect to the wind turbine generators in the field ring network via the communication link network.

[0037] Figure 1 This diagram illustrates the structure of an offshore wind farm communication network system according to an embodiment of the present invention. Taking a single wind turbine as an example, it shows a first ring network 101, a second ring network 201, and a redundant 5G communication link 301. The first ring network, the second ring network, and the 5G communication link are connected to the local control unit 002 of the wind turbine, receiving data communication and forwarding the data to the aggregation layers 100 and 200, respectively.

[0038] Figure 2This diagram illustrates another embodiment of the offshore wind farm communication network system according to the present invention. Taking multiple wind turbine generators as an example, it includes a first ring network 101, a second ring network 201, and redundant 5G communication links 301. The first ring network, the second ring network, and the 5G communication links are connected to the local control units 002, 004, 006, and 008 of each wind turbine generator, receiving data communication and forwarding the data to the aggregation layer devices 100 and 200.

[0039] By connecting all devices in the system in a ring and providing additional 5G backup for the connected devices, network failures are reduced. All connected devices communicate with each other through two sets of ring network structures 101 and 201. In the aggregation layer, the aggregation layer switching equipment is hot-backed up, and the information of the wind turbine generator is transmitted to the central monitoring unit through dual physical transmission.

[0040] By connecting each device to two central monitoring units, the problem of dual failures can be covered, allowing the ring network to communicate independently. If communication interruptions or disconnections occur in the first ring network, data communication can be maintained through the second ring network. If communication interruptions or disconnections occur in both the first and second ring networks, data communication can be maintained through an additional 5G communication link. In simpler terms, if communication interruptions or disconnections occur simultaneously in the ring dual-physical network, the activation of an additional 5G communication link greatly improves the reliability of network communication.

[0041] The first ring network has two ring states: forwarding state and blocking state. In forwarding state, all Ethernet packets are forwarded; in blocking state, no Ethernet packets are forwarded, only link detection packets, topology change packets, link failure packets, and link recovery packets are forwarded. When the first ring network is in blocking state and the packet information indicates a fault, the second ring network forwards the data to the aggregation layer switching device. Since the aggregation layer switching device is in a hot backup state between the first and second ring networks, data communication can reach both the first and second central monitoring units.

[0042] Figure 3 This diagram illustrates another embodiment of the offshore wind farm communication network system of the present invention. It is a multi-network convergence topology diagram, showing a first ring network 101, a second ring network 201, and redundant 5G communication links 301. The first ring network, the second ring network, and the 5G communication links are connected to the local control units 002, 004, 006, and 008 of the wind turbine generator sets, receiving data communication and forwarding the data to the convergence layer devices 100 and 200. The convergence layer devices 100 and 200 are interconnected via a 5G backup 150 and forward the data to the central monitoring units 110 and 210.

[0043] This invention upgrades and optimizes the existing single-ring network communication system for offshore wind farms, establishing a real-time 5G backup ring dual-physical network applicable to communication between wind turbine generators and central control units of substations in all wind farms. Simultaneously, the entire 5G network communication method resolves communication problems caused by dual fault nodes in the existing network, enhancing the reliability and security of the entire data network. This invention is applicable to all wind turbine generators and central control units of substations, without affecting the existing communication network on-site. It can be added to the existing network in practice, ensuring normal and efficient communication in the wind farm.

[0044] This invention also provides an offshore wind farm, including wind turbine generators, a booster station, and an internet communication system for the aforementioned offshore wind turbine generators.

[0045] This invention also provides a computer-readable storage medium storing a computer program. When executed by a processor, the computer program implements the processes described in the above embodiments and achieves the same technical effects. To avoid repetition, these will not be elaborated further here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0046] Of course, those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented by computer-controlled devices. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above method embodiments. The storage medium can be a memory, a disk, an optical disk, etc.

[0047] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An internet communication system for offshore wind turbines, characterized in that, include: First ring network, second ring network and redundant 5G communication links; The first ring network connects the local control units and central monitoring units of multiple wind turbine generators; the second ring network connects the local control units and central monitoring units of the multiple wind turbine generators. Both the first ring network and the second ring network include cables and aggregation layer equipment; the cables in the first ring network connect the plurality of wind turbine generators and the aggregation layer equipment in a ring structure, and connect the aggregation layer equipment to the central monitoring unit; The cables in the second ring network connect the plurality of wind turbine generators and the aggregation layer equipment in a ring structure, and connect the aggregation layer equipment to the central monitoring unit; The redundant 5G communication link connects the local control units of the multiple wind turbine generators and the central monitoring unit. The redundant 5G communication link also connects the aggregation layer devices of the first ring network, the second ring network, and the central monitoring unit. The redundant 5G communication link includes multiple 5G base stations forming a ring network. Each 5G base station is connected to at least one local control unit of a wind turbine generator. At least one 5G base station is connected to the aggregation layer device of the first ring network, at least one 5G base station is connected to the aggregation layer device of the second ring network, and at least one 5G base station is connected to the central monitoring unit. The aggregation layer devices of the first and second ring networks are connected via the redundant 5G communication link.

2. The offshore wind turbine internet communication system according to claim 1, characterized in that, The aggregation layer device of the first ring network is connected to the aggregation layer device of the second ring network.

3. The offshore wind turbine internet communication system according to claim 1, characterized in that, The aggregation layer device of the first ring network is connected to the aggregation layer device of the second ring network via a cable.

4. The offshore wind turbine internet communication system according to claim 1, characterized in that, The aggregation layer devices of the first ring network and the aggregation layer devices of the second ring network serve as hot backups for each other.

5. The offshore wind turbine internet communication system according to claim 1, characterized in that, The aggregation layer device of the first ring network is connected to the first backup aggregation layer device; and / or, The aggregation layer device of the second ring network is connected to the second backup aggregation layer device.

6. The offshore wind turbine internet communication system according to claim 1, characterized in that, The first ring network is connected to the first central monitoring unit; the second ring network is connected to the second central monitoring unit.

7. The offshore wind turbine internet communication system according to claim 1, characterized in that, The cable is an optical fiber cable.

8. An offshore wind farm, characterized in that, Includes wind turbine generator sets, substations, and the offshore wind turbine generator internet communication system as described in any one of claims 1-7.

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