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A comparative analysis on WPT system using various power transfer methodologies and core configurations
Kavitha M., Bobba P.B.,
Published in IEEE Computer Society
Volume: 2016-November
Recent days, the demand for wireless power transfer (WPT) system is highly growing since it is more convenient, reliable and safer solution for electric vehicle (EV) consumers. Static and dynamic power transfer systems are the two opted appreciable wireless charging techniques for user friendly EVs. In static and dynamic charging systems, low power transfer efficiency (ηp) between transmitter and receiver coils is the principle challenge in existing issues of wireless charging system. The paper mainly focuses on improvement of power transfer efficiency in the system. The analyses presented in this paper are tested for distinct face to face distances of the coils to observe the effect of reluctance on power transfer efficiency. Here two kinds of coil structures have been adopted and are tested with various core configurations to find the suitable combination for the enhancement of power transfer efficiency. The paper presents a comparative analysis on performance characteristics of WPT system using inductive coupled and magnetic resonance coupled (MRC) power transfer techniques. In MRC system, various compensation topologies are used to find the efficient topology which enhances the better impedance matching in the system. Further, the analysis on effect of aluminum shielding is alsoreported. © 2016 IEEE.
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