General Reference frame modelling of the doubly fed twin stator induction machine using space vector

Abstract

This paper discusses the modelling of the doubly fed twin stator induction machine in the general reference frame using space vectors based on the cascade connection of two wound rotor induction machines that have, in general, unequal pole numbers. The effects of the different interconnection of the two rotor windings are discussed, as is the mechanical alignment of the rotor shafts. Examples of stator currents in different reference frame are given.