Desenvolvimento de um protótipo de sistema de geração eólica utilizando gerador de indução duplamente alimentado

Abstract

This dissertation addresses the study carried out to place a prototype that emulates a 10kW DFIG (Doubly-fed Induction Generator) based wind generation system in operation, as well as its operationalization and control. The main advantage of using the Doubly-fed Induction Generator in variable speed wind generation systems is that the power electronics used corresponds only to a fraction of the generator’s rated power. Only the slip power is processed by the static power converter connected to the rotor circuit. Throughout the text, details are discussed, from the steps of mathematical modelling of the converters and their control design. Simulation and experimental results are shown, as well as transient analyzes involving parallelism with difference between grid and stator voltage amplitudes, and parallelism with speed different from synchronous, validating the effectiveness of the control strategies used.