Journal ArticleDOI
Design considerations for a contactless electric vehicle battery charger
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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.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.read more
Citations
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Proceedings ArticleDOI
Design of a dual-loop controller for in-motion wireless charging of an electric bus
TL;DR: In this article, a dual-loop controller has been proposed which utilizes two feedback PI controllers combined with two feed-forward controllers to set targeted steady state operation points for in-motion charging of an electric bus.
Proceedings ArticleDOI
Recent progress in developments of on-line electric vehicles
Su Y. Choi,Chun T. Rim +1 more
TL;DR: In this paper, the authors summarized the fundamentals of WPTSs for RPEVs as well as recent progress in developments of on-line electric vehicles (OLEVs) that have been commercialized firstly in 2013 and made by KAIST, Korea.
Journal ArticleDOI
High-Order Resonant Converter Topology With Extremely Low-Coupling Contactless Transformers
TL;DR: In this paper, the authors proposed a new contactless power converter topology for a low-coupling (0.14) ferrite-core transformer that has low cost, small size, high efficiency, and a wide gap (20mm).
Proceedings ArticleDOI
Secondary-side-only simultaneous power and efficiency control for two converters in wireless power transfer system
TL;DR: Simulations and experiments shows that the proposed control for power and efficiency with two converters entirely performed on the secondary side of the wireless system allows achieving high transmitting efficiency for the desired power by means of a half active rectifier.
Proceedings ArticleDOI
Resonant converter with coupling and load independent resonance for omnidirectional wireless power transfer application
TL;DR: In this paper, a 6.78MHz CLCL-LC resonant converter for omnidirectional wireless power transfer (WPT) system is proposed to solve all the challenges and provide zero voltage switching (ZVS) operation for primary device at resonant frequency.
References
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Journal ArticleDOI
Stability and control of inductively coupled power transfer systems
TL;DR: In this paper, inductively coupled power transmission (ICPT) is used for transferring power from an extended loop (track) to a number of galvanically isolated movable pickup coils.
Journal ArticleDOI
A contactless electrical energy transmission system for portable-telephone battery chargers
Yungtaek Jang,Milan M. Jovanovic +1 more
TL;DR: The proposed technique enables the implementation of high-efficiency high-power-density fully regulated fully regulated CEET systems suitable for applications with a wide input and load range.
Journal ArticleDOI
An energy transmission system for an artificial heart using leakage inductance compensation of transcutaneous transformer
G.B. Joung,Bo-Hyung Cho +1 more
TL;DR: In this paper, a transcutaneous transformer to power an artificial heart through intact skin has been designed and built in order to realize both high-voltage gain and minimum circulating current.
Journal ArticleDOI
A noncontact charger using a resonant converter with parallel capacitor of the secondary coil
TL;DR: In this article, a noncontact charging system using a resonant converter is presented, where the power transfer ability of a detachable transformer is improved by using a parallel capacitor connected to the secondary coil.
Proceedings ArticleDOI
Design of loosely coupled inductive power transfer systems
O.H. Stielau,Grant A. Covic +1 more
TL;DR: In this paper, a design methodology for loosely coupled inductive power transfer systems is proposed, where the level of compensation, as well as possible compensation topologies, are discussed in the design process.