Comparative study of transformer topologies for distributed IPT systems

Author

Lanaras, Evangelos ; Prasanth, Venugopal ; Bauer, Pavol

Author_Institution

Delft Univ. of Technol., Delft, Netherlands

fYear

2014

fDate

15-18 June 2014

Firstpage

1

Lastpage

8

Abstract

Distributed inductive power transfer (IPT) systems address the range restrictions of electric vehicles (EVs), charging the battery on-road through a loosely coupled transformer. Comparing different primary and secondary coil topologies is the main objective of this paper. Variations including single and multiphase layouts are analyzed by laboratory experimentation and finite element simulations. A system parameter optimization algorithm is introduced, utilizing sensitivity analysis techniques and equivalent circuit representation. Interphase power circulation in multiphase system primaries is addressed by a terminal correction setup, minimizing the interphase mutual inductance. The optimized designs are compared in terms of power and efficiency under alignment variations.

Keywords

battery powered vehicles; coils; equivalent circuits; finite element analysis; inductive power transmission; optimisation; power transformers; sensitivity analysis; EV; Interphase power circulation; battery on-road charging; distributed IPT system; distributed inductive power transfer system; electric vehicle; equivalent circuit representation; finite element simulation; interphase mutual inductance; loosely coupled transformer; multiphase system; primary coil topology; secondary coil topology; sensitivity analysis technique; system parameter optimization algorithm; terminal correction setup; transformer topology; Conductors; Couplings; Inductance; Layout; Optimization; Topology; Windings; Inductive power transfer; interphase mutual inductance; optimization algorithm; quadrature pick-up;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Conference and Expo (ITEC), 2014 IEEE

Conference_Location

Dearborn, MI

Type

conf

DOI

10.1109/ITEC.2014.6861797

Filename

6861797