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Steady-State Analysis of the Inductively Coupled Power Transfer System

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2 Author(s)
Wenqi Zhou ; Coll. of Electr. Eng., Zhejiang Univ., Hangzhou ; Hao Ma

Inductively coupled power transfer (ICPT) technology has been applied to various applications recently, where power is transferred through transformer with a large air gap. Usually resonant converter topology is a good choice for ICPT, in which both primary and secondary are compensated to achieve high efficiency. The steady-state analysis of a current source parallel compensated ICPT converter is presented in this paper. After introducing the basic concept of ICPT technology, a mutual model of transformer is described briefly, which is used to obtain the dynamic circuit equations. Using the generalized averaging concept, together with describing function and the harmonic balance idea, steady-state analysis of the converter is given. State equations and steady state solutions are obtained based on its equivalent circuit. Some Characteristics are compared when different parameters vary based on the analytical results, and design issues about resonant parameters are discussed. Experimental results verified what had been analyzed

Published in:

IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on

Date of Conference:

6-10 Nov. 2006