Method for Estimating Optimum Free Resonant Frequencies in Overcoupled WPT System

Table 1

The estimated free resonant frequencies using method of [13] and the proposed method with respect to coupling coefficients to achieve the high PTE.

Coupling coefficient	&   of [13] [kHz]	&   using the proposed method [kHz]	Difference [kHz]	Terminated iteration number
0.214	112.38	112.39	0.01	5
	128.54	128.51	0.03
0.190	111.73	111.73	0	4
	125.63	125.63	0
0.164	110.97	110.97	0	4
	122.19	122.19	0
0.143	110.28	110.28	0	5
	119.02	119.02	0
0.129	109.75	109.74	0.01	6
	116.51	116.51	0
0.116	109.11	109.10	0.01	10
	113.48	113.44	0.04