火电厂电气系统组网方案及纳入DCS系统的模式探讨

随着3C技术(电子计算机Computer、控制Control、通信Communication)的发展,网络通信技术在火电厂电气自动化系统中得到了广泛的应用,电气系统纳入DCS系统的模式正从硬接线向通信方式过渡,火电厂电气自动化系统的局域网组网模式也从现场总线向工业以太网过渡。针对火电厂电气自动化系统的产品现状,分析了不同模式的优缺点,论述了工业以太网在技术、经济方面的优越性及在火电厂电气上应用的必然性和目前面临的问题。

Discussion on the project of Network connections and the mode of entering into DCS in the electric system of thermal power plant

With the development of the computer, control and communication,the technology of network and communication has been employed widely in electric power automation system of thermal power plant, the mode of entering into DCS is transfering from cable connection to communication, and the project of Network connections in the local network is transfering from field bus to industry Ethernet.In view of its equipment status, this paper analyzes the superiority and the shortcomings about different project of Network connections,expounds the superiority of industry Ethernet in technological and economical field, and presents the necessity of its application in the electrical system of thermal power plant as well as the problems faced to.