Selection of suitable pole configuration of BDFRM for variable speed applications

Due to recent developments in the area of power electronics, use of special machines like permanent magnet machines, doubly fed induction machines has been increased in variable speed applications. Brushless doubly fed reluctance machine (BDFRM) is another interesting machine which can prove its suitability for variable speed applications due to numerous advantages over other machines. BDFRM can be designed for different pole configurations as well as rotor configurations. In this paper three different pole configurations of BDFRM with salient pole rotor are designed using FEM Software Ansys Maxwell and compared using FEM based simulations. The simulation study shows that 4-8-6 configuration shows fairly promising results for variable speed conditions.