Resonant frequency stabilization technique in series-series contactless energy transfer systems

Abstract

A technique for stabilization of resonant frequency is proposed in this paper. An additional power circuit, a compensator that allows keeping constant resonance frequency was introduced by the authors. In the presented solution the resonant circuit frequency stabilization is achieved by forcing a zero phase shift between the current and the voltage of the main switching module.

Keywords

• contactless energy transfer
• frequency stabilization
• inductive energy transfer
• mutual coupled coils
• resonant inverters
• wireless energy transmission