Degree Name

Doctor of Philosophy


Department of Electrical and Computer Engineering


This thesis describes a novel electrical machine. The purpose of the machine is to provide torque to the driving wheels of an electric vehicle. It thus contains two rotors mounted on separate but coaxial shafts and which can rotate at different speeds. Both the stator and the two rotors are of the disc configuration, the stator being sandwiched between the two rotors. The machine is excited by a three phase stator winding and the rotors are squirrel cage rotors. The cores are designed so that the two rotors do not act independantly but interact in such a way as to give optimum torque distribution between the two rotors.



Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.