Abstract:Abstract: In order to hold the output voltage constant

stabilize system frequency when the load varies dynamically in inductive coupled power transfer(ICPT) system

this paper presents a double LCL resonant ICPT system (LCL resonant tank in both and pickup side). Firstly

this paper describes the stable voltage characteristics of ICPT system based on LCL resonant circuit in pickup side.

presented the two design methods of the primary coin considered the reflected impedance in ICPT system based on LCL resonant circuit is capacitance-resistance

and the capacitive portion is unrelated to load dynamic variation. At the same time

describes the constant current characteristics of ICPT system based on LCL resonant circuit in primary side. Then

a general conditions is given under the conditions of load dynamic variation

which is effective to realize constant frequency (operating frequency is constant)

constant current and stable voltage output. Besides

the influence of major performance parameters on the output characteristic is analyzed. Finally

the viability of the proposed system is verified by simulation and experiments

and the results suggest that the double LCL resonant ICPT system based on optimal parameters realizes the characteristics of constant frequency

constant current and stable voltage.