Analysis and design of an isolated single-stage three-phase full-bridge with current injection path PFC rectifier for aircraft application

Nowadays there has been an important increase of electric equipment in modern aircraft which leads to a rising demand of electrical power. This highlights the necessity of efficient, reliable and high energy density power converters which rectify three-phase 115V ac to 270V dc for power distribution. This paper presents an isolated single-stage PWM rectifier with the integration of a current injection path and a full-bridge topology (IS²FBCIP PFC Rectifier). The operating principle and modulation method are presented together with design guidelines for the rectifier. Simulation results are shown to validate the functionality of the topology. The advantages of the proposed rectifier are the relatively low number of switching components, low implementation effort and its ZVS feature which leads to a high overall efficiency.