Research of LCL Resonant Inverter in Wireless Power Transfer System

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 seco...

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Bibliographic Details
Published in2006 International Conference on Power System Technology pp. 1 - 6
Main Authors Yugang Su, Chunsen Tang, Shuping Wu, Yue Sun
Format Conference Proceeding
LanguageEnglish
Japanese
Published IEEE 01.10.2006
Subjects
Capacitors
Frequency
Inductors
Iterative model
magnetic coupled
Power system dynamics
Power system modeling
Power system transients
Resonance
resonant inverter
Resonant inverters
Topology
Voltage
wireless power transfer(WPT)
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Summary: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.
ISBN:9781424401109
1424401100
DOI:10.1109/ICPST.2006.321550