Estudo e desenvolvimento experimental de um sistema eólico interligado a rede elétrica

Abstract

This work presents the study and development of an electronic system for wind energy exploitation from a permanent magnet synchronous generator connected to a wind turbine. The system operates with variable speed, allowing maximum use of the kinetic energy incident on the wind turbine. This kinetic energy is converted into electrical energy by the permanent magnet synchronous generator and, after being fully conditioned, injected into the conventional power grid. This conditioning is done by an electronic system object of study and development of this work, which consists of a rectifier connected to a single-phase full-bridge inverter with current output. Are presented the literature review of the relevant wind energy conversion systems to the scope of work, the analysis of the rectifier stage (power and control), the analysis of the inverter stage (power and control), a efficiency theoretical comparison between the proposed rectifier (three-phase bridgeless) and the threephase fullbridge rectifier, and the experimental results of an 5kW validation prototype of the proposed system.