Envelope model of load voltage on series-series compensated wireless power transfer via magnetic resonance coupling

Author

Gunji, Daisuke ; Imura, Takehiro ; Fujimoto, Hiroshi

Author_Institution

Grad. Sch. of Frontier Sci., Univ. of Tokyo, Kashiwa, Japan

fYear

2015

fDate

5-6 June 2015

Firstpage

1

Lastpage

6

Abstract

In order to analyze and design a controller of wireless power transfer (WPT), modeling of transient response is important. In this research, we propose envelop model of the load voltage for series-series (SS) compensated WPT circuit via magnetic resonance coupling. A state equation and transfer functions are derived from equivalent circuit of SS compensated WPT circuit. Transfer function which express envelope of a load voltage is also derived. The proposed envelope model is verified by experiment. A feedback controller of the load voltage is designed using the proposed envelope model and effectiveness of the control is verified by experiment.

Keywords

control system synthesis; feedback; inductive power transmission; magnetic resonance; transfer functions; transient response; SS-compensated WPT circuit; WPT controller design; envelope model; equivalent circuit; feedback controller; load voltage; magnetic resonance coupling; series-series compensated wireless power transfer; state equation; transfer functions; transient response modeling; Couplings; Integrated circuit modeling; Load modeling; Mathematical model; Resistance; Transfer functions; Voltage control; envelope model; pole-zero map; wireless power transfer;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technologies: Wireless Power (WoW), 2015 IEEE PELS Workshop on

Conference_Location

Daejeon

Type

conf

DOI

10.1109/WoW.2015.7132853

Filename

7132853