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Estimation of Output Voltage and Magnetic Flux Density for a Wireless Charging System with Different Magnetic Core Properties |
Journal of Magnetics, Volume 18, Number 2, 30 Jun 2013, Pages 105-110 |
Ji Hea Park (Clean Energy Research Center, Korea Institute of Science and Technology (KIST)), Sang Woo Kim * (Clean Energy Research Center, Korea Institute of Science and Technology (KIST)) |
Abstract |
The design model and key parameters of the material design for the control of induced magnetic flux at the near-field and efficient power transfer in a modified wireless power transfer (WPT) system with a large air gap of wireless electric vehicles were investigated through analytical simulations for magnetic vector and timedomain transient analysis. Higher saturation magnetic core with low core loss induced a stronger vertical magnetic field by the W-type primary coil in the WPT system with a gap of 20 cm at 20 kHz, which is shown from the vector potentials of the magnetic induction. The transient analysis shows that the higher magnetic fluxes through the pick-up cores lead to a linear increment of the alternating voltage with a sinusoidal waveform in the non-contact energy transfer system.
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Keywords: wireless power transfer; online electric vehicle (OLEV); electromagnetic field (EMF); magnetic core; output voltage; maxwell simulation |
DOI: http://dx.doi.org/10.4283/JMAG.2013.18.2.105 |
Full Text: PDF |
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