A 3.3kW AC-AC Converter of Transmitter for Wireless Power Transfer Systems of Automated Guided Vehicle

This paper presents a wireless power transfer (WPT) system for an automated guided vehicle (AGV). Our WPT system proposes an AC-AC converter located in a transmitter, which integrates AC-DC and DC-AC converters in a conventional structure. As a result, the WPT efficiency can be increased as well as the size. Additionally, the proposed structure allows for the WPT power capacity to be raised up to 3.3 kW. The proposed WPT system is theoretically analyzed using a lumped circuit model and verified with waveforms.