电厂电气监控系统组网模式及其与分散控制系统接入方式的研究

电厂电气监控系统(electrical control system，ECS)的发展高度依赖于通信组网技术，系统的实时性、可靠性、可维护性与ECS的组网模式及其与分散控制系统(distributed control system，DCS)的接入方式密切相关。文章介绍了ECS的一般组成，分析对比了间隔层与通信管理层之间的2种不同组网模式，即面向电气间隔的组网模式和面向过程的组网模式。并比较了ECS与DCS的常用接入方式，指出面向电气间隔的组网模式以及ECS与DCS混合连接运行模式比其他模式更具优势。

Study on Networking Mode for Electrical Control System of Power Plant and Its Connecting Mode With Distributed Control System

The development of electrical control system (ECS) depends on communication networking technique to a great extent, and the real-time performance, reliability and maintainability are closely related to the networking mode of ECS and the method by which ECS is connected with distributed control system (DCS).In this paper, the general compositions of ECS are presented and two different networking modes between bay level and communication management level, i.e., the electrical bay oriented networking mode and process oriented networking mode, are compared and analyzed.The common-used connection methods for ECS and DCS are compared, and it is pointed out that the electrical bay oriented networking mode and the hybrid mode connecting ECS with DCS is more superior to other modes.