START-UP SCHEDULE OPTIMIZING SYSTEM OF A COMBINED CYCLE POWER PLANT

摘要

This paper presents a method to determine the optimal operational parameters of a combined cycle power plant. The proposed method combines a dynamic simulation with an optimization calculation based on the nonlinear programming method. The reason for the optimization of the plant start-up scheduling is being able to reduce the start-up time by keeping the thermal stresses in the thick parts of the heat recovery steam generator and in the steam turbine under their allowable values.