Untitled Document
Untitled Document
You may need to enable or update / install Adobe Flash Player Plug-in to display JPE e-Book in your device properly. If you use Google Chrome, please find information here
> Archives > Current Issues
JPE, Vol. 18, No. 4, July 2018
Cross-Shaped Magnetic Coupling Structure for Electric Vehicle IPT Charging Systems
Siyuan Ren, Chenyang Xia, Limin Liu, Xiaojie Wu, and Qiang Yu
Area Other Applications
Abstract Inductive power transfer (IPT) technology allows for charging of electric vehicles with security, convenience and efficiency. However, the IPT system performance is mainly affected by the magnetic coupling structure which is largely determined by the coupling coefficient. In order to get this applied to electric vehicle charging systems, the power pads should be able to transmit stronger power and be able to better sustain various forms of deviations in terms of vertical, horizontal direction and center rotation. Thus, a novel cross-shaped magnetic coupling structure for IPT charging systems is proposed. Then an optimal cross-shaped magnetic coupling structure by 3-D finite-element analysis software is obtained. At marking locations with average parking capacity and no electronic device support, a prototype of a 720*720mm cross-shaped pad is made to transmit 5kW power at a 200mm air gap, providing a 1.54m2 full-power free charging zone. Finally, the leakage magnetic flux density is measured. It indicates that the proposed cross-shaped pad can meet the requirements of the International Commission on Non-Ionizing Radiation Protection (ICNIRP) according to the Australian Radiation Protection and Nuclear Safety Agency (ARPANSA).
Keyword 3-D finite-element analysis,Cross-shaped magnetic coupling structure,Inductive power transfer,Leakage magnetic flux density
Untitled Document