Volume 41 Issue 4
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TIAN Zijian, LIN Yue, WANG Wenqing, CHEN Jian, LI Weixiang. Research of electromagnetic radiation characteristics of MIT wireless power transmission system[J]. Journal of Mine Automation, 2015, 41(4): 59-64. DOI: 10.13272/j.issn.1671-251x.2015.04.016
Citation: TIAN Zijian, LIN Yue, WANG Wenqing, CHEN Jian, LI Weixiang. Research of electromagnetic radiation characteristics of MIT wireless power transmission system[J]. Journal of Mine Automation, 2015, 41(4): 59-64. DOI: 10.13272/j.issn.1671-251x.2015.04.016
shu

Research of electromagnetic radiation characteristics of MIT wireless power transmission system

  • 1.

    School of Mechanical Electronic and Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China

  • 2.

    Institute of Electrical and Information Engineering, Beijin

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    Abstract
  • 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.
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    LI Weixiang
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      School of Mechanical Electronic and Information Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China

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