Performance Characterisation of Brushless Doubly-Fed Generator

This paper presents the steady-state performance of the brushless doubly-fed machine operating as a generator. The performance characterization includes the generator efficiency, power factor and output power. The equivalent circuit model is used to represent the performance and the predictions are verified experimentally. The experimental results shown in this paper were carried out on a 180 frame size BDFM with a nested-loop rotor.