Application Investigation Of Profibus In Newly-built Power Plant

Along with Chinese electric power system reform is deepened further. Fieldbus has been more and more widely used in industrial control field, Profibus is obtained rapid development in our country, A growing number of manufacturers using Profibus as the underlying industrial control system of the factory. How to better realize the application of field bus technology in power plant is the current urgent to build digitized power plant.This paper studies the distributed control system based on fieldbus, the seamless embedded Profibus communication main module make up the complete Profibus field bus control system. In guodian zhaoqing power plant 2* 350 MW unit as the research object, and analysis of field bus control system in the network structure,control,method, the reliability of technical requirements. The Profibus field bus technology in power plant was described in detail the main process systems and the auxiliary workshop application design, And simple analysis of engineering problems in the implementation process. The control system in main, auxiliary workshop control application shows that unit. Can be realized with DCS, monitoring software and fault diagnosis system for the interconnection between each other. The system runs stably and meet the control requirement of the power plant operation. To prove that the large-scale application of field bus technology in power plants is completely feasible.