Main control topological structure of redundant looped network of wind generating set

Abstract

The utility model discloses a main control topological structure of a redundant ring network of a wind generating set. The main control topological structure comprises a main controller, a standby controller, a first switch, a second switch, a third switch, a fourth switch, a first slave station, a second slave station, a third slave station, a fourth slave station, a fifth slave station and a sixth slave station, the main controller, the standby controller, the first switch, the second switch, the first slave station and the second slave station are all arranged in a tower footing of the wind generating set; the third switch, the fourth switch, the third slave station, the fourth slave station, the fifth slave station and the sixth slave station are all arranged in a cabin of the wind generating set; according to the utility model, a double physical looped network architecture is adopted, millisecond-level fault self-healing is realized during disconnection, double fault scenes are covered, the tower footing module and the cabin module are interconnected through the double looped network, when any link or node fails, data can be transmitted through the other looped network, continuous operation of the wind generating set control system is ensured, distributed control is formed, and the control efficiency is improved. The functions are independent and can be flexibly expanded.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine generator control, and in particular to a redundant ring network master control topology for wind turbine generators. Background Technology

[0002] Wind power is rapidly evolving towards larger scale, deeper and more offshore operations, and greater intelligence. In particular, offshore wind farms are being deployed further offshore and in deeper waters, and the application of intelligent operation and maintenance and digital twin technologies places stringent demands on the reliability, real-time performance, and scalability of the main control system. Traditional centralized main control topology architectures are prone to system shutdowns due to single-point failures, and single-ring network communication self-healing times can range from several seconds to tens of seconds, making them unable to meet the high availability and low latency requirements of deep-sea scenarios.

[0003] Currently, the industry generally adopts a single-ring network architecture, which connects the main control node and remote communication sub-nodes of each device in series to form a communication network. Existing technologies typically employ the following three methods: 1. Centralized control architecture: Traditional solutions rely on a single controller to handle all functions, resulting in high reliability risks, poor compatibility, and low safety efficiency. 2. Distributed control: Distributed solutions distribute control functions to tower base, engine compartment, and wheel hub modules, using buses such as EtherCAT to improve communication speed, but without building a complete redundancy architecture. A single link failure can still lead to local communication interruptions, and the lack of intelligent fault diagnosis algorithms requires manual intervention, impacting maintenance efficiency. 3. Chinese utility model patent 201720795674.4 proposes a method for seamless switching between primary and backup controllers to achieve system stability, but it does not propose solutions for ring network redundancy or module redundancy switching. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a redundant ring network master control topology for wind turbine generator sets. This topology ensures that the normal operation of the wind turbine generator set is not affected even if one of the ring networks, modules, or controllers fails, thereby improving system availability and reducing communication latency.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: a redundant ring network master control topology for a wind turbine generator set, comprising a master controller, a backup controller, a first switch, a second switch, a third switch, a fourth switch, a first slave station, a second slave station, a third slave station, a fourth slave station, a fifth slave station, and a sixth slave station; the master controller, backup controller, first switch, second switch, first slave station, and second slave station are all located within the wind turbine generator set tower base; the master controller is communicatively connected to the backup controller, the master controller is communicatively connected to the first switch, the backup controller is communicatively connected to the second switch, and the first slave station and second slave station are each communicatively connected to the first switch and the second switch, respectively; the third switch, fourth switch, third slave station, fourth slave station, fifth slave station, and sixth slave station are all located within the wind turbine generator set nacelle; the third switch is communicatively connected to the first switch, the fourth switch is communicatively connected to the second switch, the third switch and fourth switch are communicatively connected via the third slave station and the fourth slave station, and the third switch and fourth switch are also communicatively connected via the fifth slave station and the sixth slave station.

[0006] Furthermore, the first slave station and the second slave station are connected to the diesel generator, frequency converter, measurement and control device, ambient temperature measurement device and I / O system of the wind turbine generator set.

[0007] Furthermore, the third and fifth slave stations are communicatively connected to the pitch control system, yaw drive system, I / O system, and ambient temperature measurement device of the wind turbine generator set.

[0008] Furthermore, the fourth and sixth slave stations are communicatively connected to the generator system, gearbox system, air clearance system, and hydraulic system of the wind turbine generator set.

[0009] Furthermore, the first slave station, the second slave station, the third slave station, the fourth slave station, the fifth slave station, and the sixth slave station are all I / O slave stations.

[0010] Furthermore, the first switch, the second switch, the third switch, and the fourth switch are all redundant switches that support MRP.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0012] This invention adopts a dual physical ring network architecture, which enables millisecond-level fault self-healing in the event of a line failure, covering dual fault scenarios. The tower base and nacelle modules are interconnected through the dual ring network. In the event of a failure in any link or node, data can be transmitted through the other ring network, ensuring the continuous operation of the wind turbine generator control system. At the same time, it forms a distributed control system with independent functions and flexible expansion capabilities. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the topological structure of this utility model.

[0014] Figure 2 This is a diagram showing the module communication structure for the first and second slave stations.

[0015] Figure 3 This is a diagram showing the module communication structure for the third and fifth slave stations.

[0016] Figure 4 This is a module communication structure diagram for the fourth and sixth slave stations. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments.

[0018] Example 1

[0019] See Figure 1 The diagram shows the redundant ring network master control topology of the wind turbine generator provided in this embodiment, including a master controller 1, a backup controller 2, a first switch 3, a second switch 4, a third switch 5, a fourth switch 6, a first slave station 7, a second slave station 8, a third slave station 9, a fourth slave station 10, a fifth slave station 11, and a sixth slave station 12.

[0020] The main controller 1, backup controller 2, first switch 3, second switch 4, first slave station 7, and second slave station 8 are all located within the wind turbine tower base. The main controller 1 is communicatively connected to the backup controller 2, the main controller 1 is communicatively connected to the first switch 3, the backup controller 2 is communicatively connected to the second switch 4, and the first slave station 7 and second slave station 8 are each communicatively connected to the first switch 3 and the second switch 4, respectively. The third switch 5, fourth switch 6, third slave station 9, fourth slave station 10, fifth slave station 11, and sixth slave station 12 are all located within the wind turbine nacelle. The third switch 5 is communicatively connected to the first switch 3, and the fourth switch 6 is communicatively connected to the second switch 4. The third switch 5 and the fourth switch 6 are communicatively connected through the third slave station 9 and the fourth slave station 10. At the same time, the third switch 5 and the fourth switch 6 are also communicatively connected through the fifth slave station 11 and the sixth slave station 12. The first slave station 7, the second slave station 8, the third slave station 9, the fourth slave station 10, the fifth slave station 11 and the sixth slave station 12 are all I / O slave stations. The first switch 3, the second switch 4, the third switch 5 and the fourth switch 6 are all redundant switches that support MRP.

[0021] The above topology constitutes a redundant ring network, including redundancy of master and backup controllers, redundancy of switches, and redundancy of slave stations.

[0022] 1) Redundancy of primary and backup controllers: If either the primary controller 1 located at the base of the tower or the backup controller 2 located at the base of the tower fails or malfunctions, the system will switch to the other system without disturbance. The switching time is controlled in milliseconds through H-Sync forwarding.

[0023] 2) Switch redundancy: The first switch 3 and the second switch 4 located at the tower base are redundant, and the third switch 5 and the fourth switch 6 located in the nacelle are redundant. The first switch 3, the second switch 4, the third switch 5 and the fourth switch 6 all support MRP. The redundant main control ring network adopts ProfiNet industrial-grade Ethernet communication to achieve millisecond-level deterministic response, meet the real-time data interaction requirements of wind turbine generators, and has a self-healing capability of less than 500ms when the ring network is disconnected. It has strong anti-interference capability and ensures stable operation.

[0024] 3) Slave station redundancy: The first slave station 7 located at the tower base and the second slave station 8 located at the tower base are redundant to each other; the third slave station 9 located at the nacelle and the fifth slave station 11 located at the nacelle are redundant to each other; the fourth slave station 10 located at the nacelle and the sixth slave station 12 located at the nacelle are redundant to each other. All slave stations are connected to the master control. The master control adopts an adaptive identification method to identify an abnormality in a certain slave station and automatically switch to another slave station. Even if a node on the loop fails, it will not affect the normal operation of the wind turbine generator.

[0025] When any link or node on the redundant ring network fails, data can be transmitted through another ring network, ensuring the continuous operation of the control system.

[0026] Example 2

[0027] See Figures 2 to 4 As shown in this embodiment, in the redundant ring network master control topology of the wind turbine generator provided in this embodiment, the first slave station, the second slave station, the third slave station, the fourth slave station, the fifth slave station and the sixth slave station are all I / O slave stations.

[0028] The first and second slave stations are communicatively connected to the diesel generator, frequency converter, monitoring and control device, ambient temperature measurement device, and I / O system of the wind turbine generator set. The third and fifth slave stations are communicatively connected to the pitch system, yaw drive system, I / O system, and ambient temperature measurement device of the wind turbine generator set. The fourth and sixth slave stations are communicatively connected to the generator system, gearbox system, air clearance system, and hydraulic system of the wind turbine generator set.

[0029] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A redundant ring network master control topology for a wind turbine generator set, characterized in that: The system includes a main controller, a backup controller, a first switch, a second switch, a third switch, a fourth switch, a first slave station, a second slave station, a third slave station, a fourth slave station, a fifth slave station, and a sixth slave station. The main controller, backup controller, first switch, second switch, first slave station, and second slave station are all located within the wind turbine generator tower base. The main controller is communicatively connected to the backup controller, the main controller is communicatively connected to the first switch, the backup controller is communicatively connected to the second switch, and the first and second slave stations are each communicatively connected to the first and second switches, respectively. The third switch, fourth switch, third slave station, fourth slave station, fifth slave station, and sixth slave station are all located within the wind turbine generator nacelle. The third switch is communicatively connected to the first switch, the fourth switch is communicatively connected to the second switch, and the third and fourth switches communicate with each other via the third and fourth slave stations. Simultaneously, the third and fourth switches also communicate with each other via the fifth and sixth slave stations.

2. The redundant ring network master control topology of a wind turbine generator set according to claim 1, characterized in that: The first slave station and the second slave station are connected to the diesel generator, frequency converter, measurement and control device, ambient temperature measurement device and I / O system of the wind turbine generator set.

3. The redundant ring network master control topology of a wind turbine generator set according to claim 1, characterized in that: The third and fifth slave stations are communicatively connected to the pitch control system, yaw drive system, I / O system, and ambient temperature measurement device of the wind turbine generator set.

4. The redundant ring network master control topology of a wind turbine generator set according to claim 1, characterized in that: The fourth and sixth slave stations are connected to the generator system, gearbox system, air clearance system, and hydraulic system of the wind turbine generator set.

5. The redundant ring network master control topology of a wind turbine generator set according to claim 1, characterized in that: The first slave station, the second slave station, the third slave station, the fourth slave station, the fifth slave station, and the sixth slave station are all I / O slave stations.

6. The redundant ring network master control topology of a wind turbine generator set according to claim 1, characterized in that: The first switch, the second switch, the third switch, and the fourth switch are all redundant switches that support MRP.

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