Modelling and Stability of a Single-Shaft Combined Cycle Power Plant

Abstract

The subject of this paper is the development of a dynamic model for a single-shaft combined cycle plant and the analysis of its response to electrical load and frequency transients. In particular the stability of the frequency control, as well as the implications of overheat control are investigated. The model is developed in the Simulink environment of Matlab as part of an educational and research simulation package for autonomous and interconnected systems.

Keywords

• combined cycle plant, gas gturbines, steam turbines, frequency control, modelling, simulation

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