Mathematical Model of Controlled Object in Coordinated Control System for 300MW Boiler-Turbine Unit in Yaomeng Power Plant

For the first time the nonlinear mathematical model of controlled object in boiler-turbine coordinated control system is directly applied to the distributed control system (DCS) for one of 300 MW units in Yaomeng power plant. By means of adjusting parameters of the nonlinear model in on-line way and comparing the real parameter values of practical controlled object under various operating conditions with calculated parameter values of simulation model within same time interval, it is proved that this nonlinear model can well reflect practical characteristics of controlled object in boiler-turbine coordinated control system, and the correctness and accuracy of this nonlinear model are verified.