A novel resonant current control method for contactless power transfer system

Author

Hua Cai ; Liming Shi ; Yaohua Li

Author_Institution

Key Lab. of Power Electron. & Electr. Drive, Inst. of Electr. Eng., Beijing, China

fYear

2013

fDate

26-29 Oct. 2013

Firstpage

1538

Lastpage

1542

Abstract

A novel resonant current control method especially the fast sampling method for contactless power transfer system is proposed. Within this method, the amplitude of primary resonant current is obtained by sampling at the maximum of the resonant current only one time during a resonant period, which doesn´t need extra peak detecting circuit. The resonant period is well measured, and the delay time is accurately set to ensure the sampling point of ADC at the crest or the trough of the resonant current. The resonant current is controlled by PI controller with phase-shifted control. Simulation and experiment verify the effectiveness of proposed sampling and control method.

Keywords

PI control; delays; electric current control; inductive power transmission; phase control; ADC; PI controller; contactless power transfer system; delay time; fast sampling method; phase-shifted control; primary resonant current amplitude; resonant current control method; Delays; Digital signal processing; Integrated circuit modeling; Inverters; Load modeling; Sampling methods; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2013 International Conference on

Conference_Location

Busan

Print_ISBN

978-1-4799-1446-3

Type

conf

DOI

10.1109/ICEMS.2013.6713308

Filename

6713308