Performance of a Pole-Amplitude-Modulated Self-Excited Wind-Driven Cage Induction Generator

Abstract

Abstract: The renewable wind energy encountering aglobally rapid growth to become an important electricity source, which replaces the polluting and exhaustible fossil fuel. The induction generators arecommonly used to convert the mechanical power of the wind-turbine prime-mover to electrical power.Many control techniques are used to track maximum point of wind energy. The present research aims at enhancing the performance of the self-excited wind-driven cage induction generator at the different wind speeds employing control technique by changing the number of poles of induction generator and adjusting the shunt capacitor. The control aims to track the wind maximum power and to improve the generator electrical performance when the generator feeds a static load, and when it feeds an induction motor as a dynamic load. A complete mathematical model and computer simulation has been performed, and control protocols have been reached.The suggested method leads to cheap and efficient utilization of the wind energy in electrical power generation system, especially in the remote isolated places where usage of systems of self-excited cage induction generators are highly recommended.