Abstract: Aiming at the features of supercritical unit control, the operation principle and control strategy of feedwater control system in 600MW No.1 supercritical onethrough boiler of Fengtai Power Generation Branch Office of Huaizhe Coalelectric Corporation Limited were introduced. Based on the Star-90 simulation platform, the rationality of the control strategy was verified by simulation experiment. The control strategy can be used as reference for feed water control research of domestic high capacity unit.

Key words: supercritical units, feature of control, operating principle, feed water control strategy, simulation experiment