A Single-Stage Wireless Power Transfer Converter with Hybrid Compensation Topology in AC Input

In this project, a single-stage WPT converter with constant current (CC) and constant voltage (CV) output and its asymmetric modulation method are proposed in this paper. A direct AC-AC converter is applied to the primary side of the WPT converter to directly convert line-frequency AC to high-frequency AC. The applied direct AC-AC converter that can replace the commonly used multi-stage primary converter reduces the number of circuit devices, thereby reducing the volume and cost of primary converter. The proposed WPT converter can realize zero voltage switching (ZVS) and power factor correction (PFC). In order to achieve CC and CV output, a switchable hybrid compensation topology is applied to the proposed WPT converter. The simulation results can be evaluated by using Matlab/Simulink Software.

Keywords: Asymmetric modulation, constant current (CC) and constant voltage (CV) output, hybrid compensation topology, single-stage converter, wireless power transfer (WPT).