DocumentCode :
150450
Title :
A resonant compensation method for improving the performance of capacitively coupled power transfer system
Author :
Liang Huang ; Hu, Aiguo Patrick ; Swain, Akshya
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Auckland, Auckland, New Zealand
fYear :
2014
fDate :
14-18 Sept. 2014
Firstpage :
870
Lastpage :
875
Abstract :
Capacitively coupled power transfer (CCPT) has been proposed as an alternative contactless/wireless power transfer solution. Unlike inductively coupled power transfer (ICPT), CCPT transfers power via electric field coupling, which is usually modeled as coupling capacitance. As the coupling capacitance of a CCPT system is normally very small due to practical constraints, its impedance needs to be compensated to increase the power transfer capability of the system. In this paper, a new resonant compensation method using an additional inductor and capacitor is proposed to improve the performance of CCPT system. A state space model of the system is established to analyze the characteristics of the proposed system based on a class E converter, and a practical prototype is built and tested which demonstrates that the new compensation method increases the output power transfer capability and serves as a band pass filter for reducing the switching harmonics propagation from the power converter to the load.
Keywords :
compensation; inductive power transmission; power convertors; radiofrequency power transmission; state-space methods; CCPT system; ICPT; band pass filter; capacitively coupled power transfer system; capacitor; class E converter; contactless-wireless power transfer solution; coupling capacitance; electric field coupling; inductively coupled power transfer; inductor; output power transfer capability; power converter; resonant compensation method; state space model; switching harmonics propagation; Capacitance; Capacitors; Couplings; Inductors; Inverters; Switches; Zero voltage switching;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2014 IEEE
Conference_Location :
Pittsburgh, PA
Type :
conf
DOI :
10.1109/ECCE.2014.6953489
Filename :
6953489
Link To Document :
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