Further improvement of start-ups process and start-up assignment schedules optimization are performed by calculation method. This paper describes the basic principles which can determine the automatic construction of CCPP start-up assignment schedules from various thermal states, which are able to change during start-up operations.

Abstract-This report represents heating/cooling conditions analysis of high-temperature details of the steam part equipment of combined-cycle power plants. The analysis is based on the justification of their cyclic strength by using 3D finite element models. A procedure is proposed which can be used to develop combined-cycle power plants startup assignment schedules for different initial thermal states and maintenance programs. The resulting solutions can be used to develop combined-cycle power plants diagnostic tasks.

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