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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Journal ArticleDOI
Performance Comparison of the One-Element Resonant EV Wireless Battery Chargers
TL;DR: The one-element resonant topologies of the wireless battery chargers for electric vehicles (EVs) are analyzed with the aim of giving both a thorough assessment and a comprehensive comparison of the performance of the topologies.
Proceedings ArticleDOI
A study on performances of different compensation topologies for loosely coupled inductive power transfer system
TL;DR: Analysis of efficiency of power transfer for four compensation topologies of loosely coupled inductive power transfer system at 1MHz using Class E Amplifier and the performance of such topologies is evaluated through the simulation results.
Journal ArticleDOI
Development of a 60 kHz, 180 kW, Over 85% Efficiency Inductive Power Transfer System for a Tram
TL;DR: In this article, a loosely coupled online wireless power transfer (WPT) system for a train is proposed, and the operating frequency of the proposed design is 60 kHz to ensure a low flux density and a high efficiency system with a large air gap.
Journal ArticleDOI
Consideration of Operating Condition of Secondary-side Converter of Inductive Power Transfer System for Obtaining High Resonant Circuit Efficiency
Koji Takuzaki,Nobukazu Hoshi +1 more
Proceedings ArticleDOI
Wireless power transfer via harmonic current for electric vehicles application
TL;DR: In this paper, a method that only uses harmonic current to transfer wireless power for electric vehicles (EV) is proposed, where the frequency limit of most high voltage high current IGBT is around 20 kHz which also limits the system frequency of the transformer.
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.