TITLE:
Finite Element Assisted Numerical Comparison of Single and Two Phase Inductively Coupled Power Transfer Systems
AUTHORS:
Pratik Raval, Dariusz Kacprzak, Aiguo Patrick Hu
KEYWORDS:
Finite Element Method; Electromagnetics; Magnetics; Induction; Wireless-Power-Transfer
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.5 No.7,
July
9,
2013
ABSTRACT: Inductively coupled power transfer systems
(ICPT) are becoming ubiquitous in industry. Many such systems are excited with single
or multi-phase input current. This leads to increased complexity in comparing such
systems when solely using the magnetic frequency analysis. This paper utilizes modern
finite element method analysis software to propose a novel software methodology
for the numerical comparison of single and two phase ICPT systems as demonstrated
on a three dimensional (3D) battery charging system. The sinusoidal magnetic frequency
response of a single phase system is compared to the magnetic transient response
of a multi-phase current system by use of a novel software methodology proposed
in this paper. This consists of a transient response analysis to determine compute
the resulting magnetic response over the duration of an input current period on the two phase system.
The resulting non-sinusoidal response is then integrated over a whole period to
extract the root-mean-square value for comparison with that of a single phase system across a 3D cubic power zone.