Application And Research Of The Whole-Course Feed Water Control System For 200MW Unit In Chongqing Power Plant

Based on the basis of discussing the dynamic characteristic, thermodynamic measuring signals and the characteristic of regulating machine of the feed water regulating system, a control project of unit whole-course feed water control system is presented after analyzing the structure and the principles of the three impulses feed water control system. According to existing condition and problems of the feed water control system composed of three speed-adjusted pumps for 200MW unit in Chongqing power plant, the project design of the whole-course feed water control system is presented and realization of the whole-course feed water control system in the plant and the main contents of reconstruction project are discussed. The constitution principles and control function of the whole-course feed water regulating system for 200MW unit in Chongqing power plant are introduced detailed and the whole structure, work principle, operation mode, control logic, debugging and parameters modification of the system are analyzed. The result shows the control project presented by the paper is suitable for the thermodynamic system of feed water in Chongqing power plant. It is effective for realization of the whole-course feed water control for 200MW unit in the plant.