Modular structure for multi-controller communication of wind power plant

Abstract

The utility model discloses a modular structure for multi-controller communication of a wind power plant, the wind power plant comprises a plurality of wind generating sets, and each wind generating set comprises a plurality of controllers. The external network profinet interface of the controller of one wind power generator set and the external network profinet interfaces of the controllers of other wind power generators in the wind power plant are located at different IPV4 addresses of the same network segment, and the multiple controllers located at the different IPV4 addresses of the same network segment are connected. According to the utility model, the fan plant-level communication is optimized, the fineness of single-machine control can be effectively improved, the self-adaptive control capability of the fan is enhanced, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a modular structure for multi-controller communication in a wind farm. Background Art

[0002] The network of a wind turbine usually consists of an internal network structure of the whole machine and a plant-level external network. Regardless of which network structure, the main controller only communicates with the acquisition device and only receives control such as SCADA, and the wind turbines do not communicate with each other. With the development of the diversity of current wind turbines, there may be multiple controllers in the internal network of the wind turbine, and the data of adjacent wind turbines arranged side by side has certain reference value. Multi-controller communication can improve the fineness of single-machine control, and constructing a multi-controller communication structure has become an urgent task at present. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art, provide a modular structure for multi-controller communication in a wind farm, optimize the plant-level communication of the wind turbine, can effectively improve the fineness of single-machine control, enhance the adaptive control ability of the wind turbine, and reduce the operation and maintenance cost.

[0004] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0005] A modular structure for multi-controller communication in a wind farm, the wind farm includes a plurality of wind turbines, each wind turbine includes a plurality of controllers, so that the external network profinet interface of the controller of one wind turbine and the external network profinet interfaces of the controllers of other wind turbines in the wind farm are in the same network segment but different IPV4 addresses, and a plurality of controllers in the same network segment but different IPV4 addresses are connected.

[0006] Specifically, a plurality of controllers in the same network segment but different IPV4 addresses are directly connected or connected through profinet interfaces, and the CPUs of a plurality of controllers are configured into a plurality of IO controllers and a plurality of IO devices.

[0007] Specifically, a single IO device can be connected to a maximum of 4 IO controllers at the same time, and the number of connections between a single IO controller and IO devices is not limited.

[0008] Specifically, the internal network profinet interface of the controller of the wind turbine and the internal network profinet interfaces of other controllers of the wind turbine are in the same network segment but different IPV4 addresses, and a plurality of controllers in the same network segment but different IPV4 addresses are connected.

[0009] Specifically, multiple controllers with different IPv4 addresses in the same network segment are directly connected or connected through a Profinet interface, and the CPUs of multiple controllers of the wind turbine generator are configured into an IO controller and multiple IO devices.

[0010] Specifically, there are three controllers for the wind turbine generator, namely a central controller configured into an IO controller and a left impeller controller and a right impeller controller configured into IO devices. The internal network Profinet interfaces of the central controller, the left impeller controller, and the right impeller controller use network cables and are connected through a switch.

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

[0012] By adopting the modular structure of the present utility model, a non-traditional upwind, single-impeller wind turbine generator can be developed. At the same time, the communication structure in which the fan can only receive centralized control manual instructions can be improved, a multi-redundancy system can be constructed, the adaptive control ability of the fan can be enhanced, and the operation and maintenance cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the network structure of the modular structure of this embodiment Figure 1 .

[0014] Figure 2 is a schematic diagram of the network structure of the modular structure of this embodiment Figure 2 .

[0015] Figure 3 is a schematic diagram of the network structure of the modular structure of this embodiment Figure 3 . DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] Embodiment:

[0018] This embodiment provides a modular structure for multi-controller communication in a wind farm. The wind farm includes multiple wind turbines, and each wind turbine includes multiple controllers. The external network profinet interface of the controller of one of the wind turbines is in the same network segment but has different IPv4 addresses from the external network profinet interfaces of the controllers of other wind turbines in the wind farm. Multiple controllers with different IPv4 addresses in the same network segment are directly connected or connected through the profinet interface. The CPUs of multiple controllers are configured into multiple IO controllers and multiple IO devices to achieve wind farm-level communication.

[0019] Specifically, the controller and the adjacent arranged controller can be respectively configured as an IO controller and an IO device. The adjacent controllers may not control the operation of another system, but share basic acquisition data with each other to achieve data sharing of the wind turbines in the wind farm; or the adjacent controllers can control the operation of another system and can adjust the regional control strategy according to environmental conditions at this time to achieve optimization of the wind turbine control strategy.

[0020] Specifically, the internal network profinet interface of the controller of the wind turbine is in the same network segment but has different IPv4 addresses from the internal network profinet interfaces of other controllers of the same wind turbine, and they are directly connected or connected through the profinet interface. The CPUs of multiple controllers are configured into one IO controller and multiple IO devices. The IO controller controls the whole machine system, and the IO devices control other small systems, such as the turret high-voltage cabinet, to achieve communication and interaction between different subsystems.

[0021] As Figure 1 shown, taking three controllers as an example, namely the central controller 1, the left impeller controller 2, and the right impeller controller 3, the internal network profinet interfaces of the three controllers are connected through a switch using network cables. The central controller is used as the IO controller to control the left and right impeller controllers and coordinate the actions of the whole machine. The left and right impeller controllers are used as IO devices to control two nacelle devices respectively and transmit key data to the central controller.

[0022] As Figure 2 、 Figure 3 shown, in this embodiment, a single IO device 4 can be connected to a maximum of 4 IO controllers at the same time. The number of connections between a single IO controller and IO devices is not limited. Different configurations are only limited by the communication bandwidth. The operation of a single wind turbine 5 is mainly affected by the front and rear wind turbines. The front and rear wind turbines in the configuration can communicate externally to exchange data.

[0023] As mentioned above, it is only a preferred embodiment of the utility model patent, but the protection scope of the utility model patent is not limited thereto. Any person skilled in the art within the scope disclosed by the utility model patent, according to the technical solution of the utility model patent and its inventive concept, makes equivalent substitutions or changes, which all belong to the protection scope of the utility model patent.

Claims

1. A modular structure for wind farm multi-controller communication, characterized by: The wind farm includes multiple wind turbines, each wind turbine includes multiple controllers, so that the external network PROFINET interface of the controller of one of the wind turbines and the external network PROFINET interfaces of the controllers of other wind turbines in the wind farm are in the same network segment but different IPV4 addresses, and multiple controllers in the same network segment but different IPV4 addresses are connected.

2. The modular structure for wind farm multi-controller communication according to claim 1, characterized in that: Multiple controllers with different IPv4 addresses in the same network segment are directly connected or connected through the profinet interface, and the CPUs of multiple controllers are configured into multiple IO controllers and multiple IO devices.

3. The modular structure for wind farm multi-controller communication according to claim 1, characterized in that: A single IO device can be connected to up to four IO controllers at the same time, and there is no limit to the number of connections between a single IO controller and IO devices.

4. The modular structure for wind farm multi-controller communication according to claim 1, characterized in that: The intranet PROFINET interface of the controller of the wind turbine generator set and the intranet PROFINET interfaces of other controllers of the wind turbine generator set are located in the same network segment but with different IPV4 addresses, and multiple controllers with different IPV4 addresses in the same network segment are connected.

5. The modular structure for wind farm multi-controller communication according to claim 4, characterized in that: Multiple controllers with different IPv4 addresses in the same network segment are directly connected or connected through a profinet interface, and the CPUs of multiple controllers of the wind turbine generator set are configured into one IO controller and multiple IO devices.

6. The modular structure for wind farm multi-controller communication according to claim 4, characterized in that: The wind turbine generator set has three controllers, namely a central controller for configuring as an IO controller and a left impeller controller and a right impeller controller for configuring as IO devices. The intranet PROFINET interfaces of the central controller, the left impeller controller and the right impeller controller are connected by network cables and switches.

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