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Extensive analysis on wireless power transformer for various core configurations
Kavitha M., Varghese B.J., Bobba P.B.,
Published in Institute of Electrical and Electronics Engineers Inc.
Wireless power transfer (WPT) is one of the safe and convenient way of transmitting power for short range distances. But its efficiency is lower than wired power transfer due to low coupling coefficient and improper coupling between transmitter and receiver. In the field of inductively coupled wireless power transfer, identifying and enabling of appropriate reluctance path between the transmitter and receiver is a significant element. This can be achieved by selecting proper dimensions as well as the suitable category of the core. This paper demonstrates design aspects and the effects of core dimensions on the coupling factor and illustrates the different core combinations. It also provides numerical analysis of various factors such as leakage flux, mutual flux and coupling factor and the similar attributes for various WPT models. In this work, various core combinations have been analyzed to find an efficient combination to achieve highest coupling coefficient to facilitate maximum power transfer in the system. The WPT system is further analyzed under no-load as well as load conditions for various distances between transmitter and receiver. © 2015 IEEE.
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Published in Institute of Electrical and Electronics Engineers Inc.
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