Design considerations for a contactless electric vehicle battery charger
Chwei-Sen Wang
Stielau, O.H.
Covic, G.A.
Dept. of Electr. & Comput. Eng., Univ. of Auckland, New Zealand;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Oct. 2005
Volume: 52,
Issue: 5
On page(s): 1308- 1314
ISSN: 0278-0046
INSPEC Accession Number: 8590524
Digital Object Identifier: 10.1109/TIE.2005.855672
Current Version Published: 2005-09-26
Abstract
This paper overviews theoretical and practical design issues related to inductive power transfer systems and verifies the developed theory using a practical electric vehicle battery charger. The design focuses on the necessary approaches to ensure power transfer over the complete operating range of the system. As such, a new approach to the design of the primary resonant circuit is proposed, whereby deviations from design expectations due to phase or frequency shift are minimized. Of particular interest are systems that are neither loosely nor tightly coupled. The developed solution depends on the selected primary and secondary resonant topologies, the magnetic coupling coefficient, and the secondary quality factor.
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