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Transmitting Capacity Estimation and Verification for Wireless Power Transmission System via Electromagnetic Resonant Coupling |
Zhang Xian, Yuan Zhaoyang, Zhang Pengcheng, Yang Qingxin, Li Yang |
Tianjin Key Laboratory of Advanced Electrical Engineering and Energy TechnologyTianjin Polytechnic University Tianjin 300387 China |
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Abstract In this paper,the power distribution in the near-field of a magnetic dipole and the proportion its reactive power are obtained to estimate the optimum operating range of the wireless power transmission (WPT) system.Secondly,a general resonant coupling power transmission (RCPT) system is analyzed with thecoupled mode theory.The transferred power can be expressed asthe function of the quality factor,the coupling coefficient,and the angular frequency.For verification,a RCPT system composed of planar resonators is fabricated.It is shown by the measured results that,the maximum transmission distance is up to 5 m at about 10 MHz,which is an evident proof for the correctness of the proposed theory.
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Received: 30 May 2015
Published: 21 October 2015
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About author:: Zhang Xian male,was born in 1983,vice professor.His research field contains numerical computing for engineering electromagnetic field and wireless power transmission technology. Yuan Zhaoyang male,was born in 1991,Ph D,master student.His research field contains wireless power transmission technology |
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