GB/T 30966.3-2022 Wind energy generation systems—Communications for monitoring and control of wind power plants—Part 3:Information exchange models
GB/T 30966.3-2022 Wind energy generation systems—Communications for monitoring and control of wind power plants—Part 3:Information exchange models
Basic Information
Scope
IEC 61400-25 focuses on the general requirements for communication between various components (such as wind turbines) and participants (such as SCADA systems) in wind farms. The internal communication of each part of the wind farm itself is not within the scope of application.
IEC 61400-25 is designed for communication environments supported by the client-server model, and defines the following three aspects, each of which is modeled to ensure the scalability of the implementation:
a) Wind farm information model;
b) Information exchange model;
c) Mapping of the information model and information exchange model to standard communication protocols.
The wind farm information model and information exchange model constitute an interface between the client and the server. As an interpretation framework for accessing wind farm data, the wind farm information model provides unified, component-based wind farm data to the client through the server. The information exchange model reflects all the effective functions of the server. IEC 61400-25 enables common access between different clients and servers from different manufacturers and suppliers.
As shown in Figure 1, the server defined by IEC 61400-25 includes the following aspects.
—— Information provided by wind farm components, such as "wind turbine rotor speed" or "total power generation within a certain period of time", which is modeled and can be effectively accessed. The modeled information is defined in the GB/T 30966.2 information model.
—— The exchange service of modeled information values, defined in the information exchange model.
—— Mapping to communication protocols, providing a protocol to obtain exchange values from modeled information (GB/T 30966.4).
IEC 61400-25 only defines how to model information, exchange information, and map to specific communication protocols, and does not include how and where to implement communication interfaces, application