Title

Lyapunov function-based stabilizing control scheme for wireless power transfer systems with LCC compensation network

Document Type

Conference Proceeding

Publication Date

6-14-2021

Abstract

A stabilizing control scheme based on a Lyapunov function is proposed for wireless power transfer (or WPT) systems. A state-space model of the WPT system is developed and the Lyapunov function is formulated based on an energy equation of the system involving state variables. The internal resistance of a battery varies during charge and discharge. Therefore, if a WPT system is used to charge a battery, its output load will vary. Furthermore, the coupling coefficient between the transmitter (primary) and receiver (secondary) coils decreases when they are misaligned. Comparative case studies are conducted to verify the efficacy of the proposed controller in maintaining stability of the WPT system under load variation and acute misalignment of transmitter and receiver coils.

Publication Source (Journal or Book title)

Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

First Page

694

Last Page

699

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