| Lots of power plant faced the problem of coordinated control system optimization. The correlative study mainly focused on the two aspects: object modeling and control arithmetic. Constructing the unit load-pressure object model and thoroughly analyzing the characteristic of the model are the basic of the study. Studying the characteristic of various components of the unit, then adopting the method of combination of mechanism analysis and data fitting to build up the mechanistic model of various components of the unit, using the operating parameters in the vicinity of their units to simplify and fitting the model,and to obtain the analytical model of the form of expression.The load-pressure model of direct air-cooling unit in this paper came from the traditional water-cooling unit. This paper analyzed the model, and the idea of economic coordination control strategy is introduced. |