Abstract
A new method of power control for wireless power transmission (WPT) system has been proposed and analysed. The circuit and method suggested in this study holds good promise of reducing switching loss in the high-frequency converter of WPT. The effect of misalignment between transmitter and receiver coils has been analysed and a simple remedial method has been proposed. The desirability of frequency tuning of converter's output voltage under varying degrees of misalignment has been highlighted. The conventional perturb and observe method for maximum power point tracking has been gainfully employed here to achieve the required frequency tuning of the proposed converter. The proposed methods are implemented and tested on laboratory scale. Some suggestions have been given for augmenting driver assistance system aimed at limiting lateral misalignment in dynamic WPT system. The suggested algorithm is tested in a laboratory environment using a simple communication system.
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