New vector control algorithm for brushless doubly-fed machines

A new vector control algorithm for the brushless doubly-fed machine (BDFM) has been developed. The goal of the BDFM control is to achieve the same or higher dynamic performance as the wound rotor machine, exploiting the well known induction motor vector control philosophy. For this purpose a unified reference-frame model is preferred. This paper exploits this new model leading to some interesting coupling properties and allowing a high performance dynamic response. All this work is tested and validated in an experimental machine prototype.