Finite Element Assisted Study of Magnetic Configurations of Flat Pickups for Inductively Coupled Power Transfer Systems

This publication describes the findings from a finite-element assisted study of an Inductively Coupled Power Transfer (ICPT) system with flat pickups. Results from the analysis of pickup elements are presented in a graphical form allowing comparison with a conventional (‘original’) pickup. The pickups were examined in unipolar and bipolar ICPT systems. Unlike the existing pickup, the proposed configurations utilize two components of the magnetic flux density, and are characterized by high-power transfer ability as well as much better response to the misalignment problem. Some recommendations and possible means for further improvements for higher power efficiency are also put forward