Dynamic modeling and analysis of LM6000 gas-turbine synchronous generator

This paper demonstrates the dynamic performance of synchronous generator in typical LM6000^® gas-turbine during sudden changes in input torque and during a short circuit fault at the terminals while it is connected to infinite bus bar based on first engineering principles. The constructed model consists of a set of nonlinear differential equations. The analysis given in this paper is valid for a linear magnetic system where saturation is not considered. In this study, the stator variables are transformed to a reference frame fixed in the rotor. MATLAB^® is used for analysis and computer traces to illustrate the dynamic behavior of the synchronous generator.