| Title |
Modeling for Mutual Inductance between Loop Coils at Inductive Power Transfer System |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2018.32.6.034 |
| Keywords |
Inductive Power Transfer ; Mutual Inductance ; Coupling Coefficient ; Loop Coil ; Efficiency |
| Abstract |
Among the various methods of wireless power transmission using the near and field of electromagnetic energy, the most realistic method is the inductive power transfer (IPT) method. This method has a higher transmission efficiency and minimizes the influence of electromagnetic waves on the human body as compared with other methods, and has attracted attention as a method most likely to be commercialized in wireless charging of electric vehicles. In this paper, the coupling coefficient and mutual inductance between the Tx-Rx loop coils are modeled and the efficiency of the system is calculated using mathematical analysis in the near field using IPT system. As a result, it is confirmed that the measured value of efficiency at actual IPT system is in good agreement with the calculated one, so this analysis method can be applied to the design and the optimization of the distance of the coil at the IPT system for wireless charging of electric vehicles. |