O estudo de pequenos geradores eólicos como fonte complementar de energia elétrica

Abstract

The year 2021 was caused by two relevant points in the community in general in Brazil, the first the continuation of the COVID-19 pandemic and the second the water crisis caused by the lack of rain and low reservoirs for the production of electricity. Due to the lack of rain, the growth in investment in the production of electricity has been increasing as a complementary source of energy. With regard to solar energy, the southeastern region of Goiás has seen a very large growth in the installation of solar panels, however wind energy, the sector accumulates a record of energy generation in the Northeast. As an impact on the progress towards mitigation of the installation solution for small wind generators, there is the study of the generator to carry out the electromechanical energy conversion process. The present work aims at the study and implementation of the Three-Phase Cage Induction Generator for harnessing Wind Energy. Ex-perimental tests with the Cage Three-Phase Induction Generator will be carried out in a labor-atory environment. The input power will be the wind turbine which is emulated by a three-phase induction motor connected to the frequency inverter. To emulate the local consumer, a bank of resistors will be added to the Generator terminals with the possibility of connecting resistive and inductive loads to test the viability of the generation system. With the expected results of the project, we have surveyed the parameters of the Generator's equivalent electrical circuit obtained from the no-load and blocked-rotor tests and constructed a code in MA-TLAB, which generates graphs of the results of these tests. The experimental results self-excitation is achieved by selecting a capacitor bank, in addition, the output voltage and output power depend on the value and nature of the load, and may even cause demagnetization of the generator.