Research of LCL Resonant Inverter in Wireless Power Transfer System

Author

Su, Yugang ; Tang, Chunsen ; Wu, Shuping ; Sun, Yue

Author_Institution

Autom. Coll., Chongqing Univ., Chongqing

fYear

2006

Firstpage

1

Lastpage

6

Abstract

The LCL type MCWPT system in continuous current mode is analyzed in detail. The iterative model for numerical analysis of transient dynamic response is built up with discrete time mapping modeling method. It is found that when the control frequency is equal to the inherent resonant frequency of secondary side, the inverter output current has large distortion and the switches are working in hard-switching mode. Then an effective way to find out the ideal operation frequency with the impedance analysis is proposed. A parameter optimizing process is applied to the system to realize its ideal operation mode where it has the maximum power transfer capability and efficiency. Simulation results from PSpice have verified the theoretical results.

Keywords

dynamic response; iterative methods; resonant invertors; LCL resonant inverter; MCWPT system; continuous current mode; discrete time mapping modeling; impedance analysis; iterative model; maximum power transfer capability; numerical analysis; resonant frequency; transient dynamic response; wireless power transfer system; Capacitors; Frequency; Inductors; Power system dynamics; Power system modeling; Power system transients; Resonance; Resonant inverters; Topology; Voltage; Iterative model; magnetic coupled; resonant inverter; wireless power transfer(WPT);

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology, 2006. PowerCon 2006. International Conference on

Conference_Location

Chongqing

Print_ISBN

1-4244-0110-0

Electronic_ISBN

1-4244-0111-9

Type

conf

DOI

10.1109/ICPST.2006.321550

Filename

4115880