A Novel Combination of Resolver and Contactless Energy Transfer for Electric Excited Machines

Abstract

This paper proposes a simulative approach to combine the resolver function and the contactless energy transfer for the excitation of an electrical machine. It has the capability to reduce the required space for the components. Furthermore, the wear of the used parts can be reduced. The Idea is, to use the changing inductances of a contactless energy transfer system and the resulting variable frequencies of the power electronics to evaluate the rotor position. A magnetic model was build up and simulated afterwards. An electric model can be constructed as result of the gained magnetic parameters. Finally, the possibility of a simultaneous rotor position determination with contactless energy transmission is validated by simulation.