Control Design for Optimizing Efficiency in Inductive Power Transfer Systems

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Article number7971993
Pages (from-to)4523-4534
Journal / PublicationIEEE Transactions on Power Electronics
Volume33
Issue number5
Online published7 Jul 2017
Publication statusPublished - May 2018
Externally publishedYes

Abstract

Inductive power transfer (IPT) converters are resonant converters that attain optimal energy efficiencies for a certain load range. To achieve maximum efficiency, it is common to cascade the IPT converter with front-side and load-side dc/dc converters. The two dc/dc converters are normally controlled cooperatively for the requirements of output regulation and maximum efficiency tracking using a control technique based on perturbation and observation, which is inevitably slow in response. In this paper, a decoupled control technique is developed. The load-side dc/dc converter is solely responsible for output regulation, while the front-side converter is responsible for impedance-matching of the IPT converter by controlling its input-to-output voltage ratio. The controls are linear and therefore fast. DC and small-signal transfer functions are derived for designing the control parameters. The performances of fast regulation and high efficiency of the IPT converter system are verified using a prototype system.

Research Area(s)

  • Control for maximum efficiency, Inductive power transfer (IPT), Wireless power transfer

Citation Format(s)

Control Design for Optimizing Efficiency in Inductive Power Transfer Systems. / Huang, Zhicong; Wong, Siu-Chung; Tse, Chi K.
In: IEEE Transactions on Power Electronics, Vol. 33, No. 5, 7971993, 05.2018, p. 4523-4534.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review