Implementação de um modelo dinâmico para geradores síncronos

Abstract

This paper presents the implementation of a dynamic model of the synchronous generator, applied in a computer simulation software, representing the behavior of a synchronous generator directly connected to the infinite bus. Through the dynamic model it is possible to simulate a complex system, where the behavior of the generator can be analyzed when faced with variations in parameters during its operation. The implementation of the model is based on the theory presented in the first chapters, having as a basis the literature available in the references. The principle that governs the dynamic analysis of the generator is the application of the Park Transform to the generator’s equations, initially referenced to the real abc axis. After the transformation, the variables are referenced to axes that rotate at the synchronous speed of the generator, called direct axis and quadrature axis. The simulation was performed in MATLAB’s Simulink. From the implementation of the computational model, tests were performed to analyze the behavior of the generator in the transient regime of its operation, such tests apply sudden increases and decreases in the model’s input variables.