Estudo para maximizar conversão de energia de geradores síncronos em sistemas de potência.

Abstract

This work has as its main contribution the study on energy conversion maximization of synchronous generator. For doing it so, it was necessary develop a software that simulates the turbine/generator set functioning with different types of load that allows the study on dynamic stability in power systems. In order to simulated the synchronous generator running a mathematical was developed from Park model. A generator excitation system the mechanical turbine system and drives controls were also simulated. A study of synchronous generator operating with constant excitation running was presented in order to characterization the influence of sub excitation on stability. A study on the effect of proportional integral controller in the stability was also made. A compensation through excitation system to improve the stability and maximize the energy conversion process Was presented. Finally a discrete supplementary control for stability was presented. This control preventing the generation loss due to short-circuit and full load rejection.