Simulation of Wind Energy System Employing Doubly Fed Induction Generator

Stephen Ejiofor Oti, Nnadi Damian Benneth, Ogbuefi Uche, Nnamani Stella, Agada Stephen

Abstract

This work is based on the dynamics of wind energy generation considering the wind speed and the control of the rotor speed using vector control of the converters. The converters are both connected to the rotor side and grid side of the doubly fed induction generator (DFIG), pulse width modulated (PWM) generators powering the switches are controlled using various vector transformation and proportional integral (PI) control of the direct and quadrature current and the speed of the rotor. It is found that at an average wind speed of about 8.5 m/s a considerable voltage and current characteristic is evolved whereas at wind speed of about 2 m/s, the amount of voltage generated is seen not to compare favorably to the former. The modelling and simulation of this work was done using MATLAB and Simulink software.

Keywords

Doubly fed; Induction generator; Modelling; Wind energy; Wind speed.

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