Double-Sided LCC Compensation Topology with Semi-Bridgeless Rectifier for Wireless Power Transfer System

Abstract

This paper proposes a wireless power transfer (WPT) system to achieve high power density and constant voltage output. The proposed system consists of a double-sided LCC compensation network and a semi-bridgeless rectifier. The output voltage is controlled by using the pulse width modulation control of the semi-bridgeless rectifier switch without changing the operating frequency. Therefore, the proposed system provides a stable output voltage even under various disturbances such as input voltage and load variation. In addition, there is an advantage that the power density is improved because no additional passive elements and stages for voltage control are required. In order to confirm the validity of the proposed system, simulation results are provided.