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Date of Publication:2017-01-01

Journal:电工技术学报

Affiliation of Author(s):电子信息与电气工程学部

Issue:5

Page Number:208-214

ISSN No.:1000-6753

Abstract:The magnetically-coupled resonant wireless power transmission(MCR-WPT)with multi relay coils is used to solve the problem of the power supply reliability and stability for the intelligent high voltage equipment in smart grid.The mathematics model of MCR-WPT with multi relay coils is found and the calculation algorithm of the coils mutual inductance,the load power and transmission efficiency is given.With two or three relay coils,the load power and transmission efficiency when the clearance between coils is changed and the relationship between the relay coils′position and transmission power are simulated and the coils′position and transmission efficiency are found when the load power is biggest.The simulation and experimental results show that two or three relay coils can improve significantly the load power,transmission distance and transmission efficiency,the coils′position is not isometric arrangement when the load power is biggest,and the best arrangement for coils should be simulated and tested for different power transmission systems.

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