Analysis of Rotor Structure Effects on Magnetic Field in Brushless Doubly Fed Induction Machine

Abstract

In 21st century, due to reduced fossil fuels, important of renewable energy production is increasing day by day. Especially wind energy production and its technology show a rapid development. In this topic, wind turbine generator types have been significant progress, too. With increasing technology, wind turbine generators are more efficient and less cost. Brushless Doubly Fed Induction Machine is one of the mentioned generator types. Especially, absence of brushes minimizes maintenance cost, but operation characteristics of Brushless Doubly Fed Induction Machine are not enough level. Therefore, structure of Brushless Doubly Fed Induction Machine still continues to improve. In this paper, for efficiency of Brushless Doubly Fed Induction Machine, its magnetic field has been investigated and rotor structure has been tried to be improved.