Research of electromagnetic radiation characteristics of MIT wireless power transmission system

TIAN Zijian; LIN Yue; WANG Wenqing; CHEN Jian; LI Weixiang

doi:10.13272/j.issn.1671-251x.2015.04.016

Gong-kuang zidonghua (Apr 2015)

Research of electromagnetic radiation characteristics of MIT wireless power transmission system

TIAN Zijian,
LIN Yue,
WANG Wenqing,
CHEN Jian,
LI Weixiang

Affiliations

TIAN Zijian: School of Mechanical Electronic and Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
LIN Yue: School of Mechanical Electronic and Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
WANG Wenqing: Institute of Electrical and Information Engineering, Beijin
CHEN Jian: School of Mechanical Electronic and Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
LI Weixiang: School of Mechanical Electronic and Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China

DOI: https://doi.org/10.13272/j.issn.1671-251x.2015.04.016
Journal volume & issue: Vol. 41, no. 4
pp. 59 – 64

Abstract

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When MIT wireless power transmission system acquired the maximum transmission efficiency, magnetic and electric field distributions of resonant coil were simulated by full wave method of moments and magnetic quasi static algorithm. Human brain absorption of electromagnetic radiation of the system was analyzed quantitatively by using HFSS finite element simulation software. The simulation results show that if the power of 400 W is transferred, the maximum magnetic field strength and the electric one of resonant coils are 9.376 3×10-3 A/m and 1.52×102 V/m respectively. The magnetic field strength meets standards of International Commission on Non-Ionizing Radiation Protection but the electric one beyond the standard value. The maximum of local SAR is 7.038 9×10-6 W/kg at 100 mm away from the transmitter coil, which is less than the standard value of International Commission on Non-Ionizing Radiation Protection.

Published in Gong-kuang zidonghua

ISSN: 1671-251X (Print)
Publisher: Editorial Department of Industry and Mine Automation
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.gkzdh.cn/en.htm

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