Importance

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Abstract

An initial start-up schedule is prepared based on given parameters relating to a thermal power plant and its operation. A dynamic characteristic model is prepared, permitting simulation of start-up characteristics which would be obtained if the thermal power plant is started according to the initial start-up schedule. Estimates are made of specified parameters, such as energy loss, the time interval between steam admission to an intermediate pressure turbine and steam admission to a high pressure turbine, and thermal stress of the power plant. Determination is made of whether the estimated values of the selected parameters are within predetermined allowable ranges or not. The initial start-up schedule is then corrected according to a predetermined rule depending upon whether the estimated values are determined to be within the predetermined allowable ranges or not. The estimating, determining, and correcting are repeated until an optimized start-up schedule is obtained.

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First Claim