Compensation technique for optimized efficiency and voltage controllability of IPT systems

Author

Zhang, Wei ; Wong, Siu-Chung ; Tse, Chi K. ; Chen, Qianhong

Author_Institution

Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, China

fYear

2012

fDate

20-23 May 2012

Firstpage

225

Lastpage

228

Abstract

Inductive power transfer (IPT) is an emerging technology that may open up new possibilities for power charging applications. However, the rather complex control method and low efficiency remain the key obstructing factors for general deployment. In a regularly compensated IPT circuit, high efficiency and controllability of the voltage transfer function are always conflicting requirements under varying load conditions. In this paper, the relationships among compensation parameters, circuit efficiency and voltage transfer function are studied. A new compensation method is proposed to achieve a better overall efficiency and good output voltage controllability. The analysis is supported by experimental results.

Keywords

compensation; inductive power transmission; power transmission control; transfer functions; voltage control; IPT system; Inductive power transfer; circuit efficiency; compensation parameter technique; complex control method; output voltage controllability; power charging application; voltage transfer function; Capacitors; Controllability; Integrated circuit modeling; MOSFETs; Voltage control; Windings; Zirconium;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2012 IEEE International Symposium on

Conference_Location

Seoul

ISSN

0271-4302

Print_ISBN

978-1-4673-0218-0

Type

conf

DOI

10.1109/ISCAS.2012.6271740

Filename

6271740