遵循IEC 61850-9-2实现变电站采样值传输

Implementation of Sampled Value Transmission Complying With IEC 61850-9-2

基于IEC61850标准的实时、可靠的采样值传输是数字化变电站过程总线通信的重要内容。IEC61850-9-2与IEC61850-9-1相比在灵活性和适应性等方面具有较大优势,但其实现的难度也增加了。文章阐述了遵循IEC61850-9-2实现采样值传输的对象模型、服务映射和编码规则,以及采样值发送和接收应用程序的开发过程和实现方法。通过在初始化过程中构建应用数据管理链表和预配置的方式提高程序效率,并组建了一个简单的测试环境对通信报文的正确性进行测试和分析。

The IEC 61850 standard based real-time and reliable sampled value transmission is an important content of process bus communication in digital subtation. IEC 61850-9-2 possesses evident superiority in both flexibility and adaptively in comparison with IEC 61850-9-1, however it is also more difficult to achieve it. In this paper, the object model to implement sampled value transmission complying with IEC 61850-9-2, its service mapping and coding rules as well as the development and implementation of application program to send and receive sampled values are expounded. The program efficiency is improved by constructing application data management chained list and pre-configuration during the initialization process, and a simple testing environment is composed to test and analyze the correctness of communication messages.