Design and Analysis of 1.2KW Interleaved Synchronous Buck Converter Design for Aviation Systems

Abstract

The main goal of this work is to create a battery-powered 1.2kW interleaved synchronous buck converter for aviation systems with lower losses than current topologies. It is hoped to reach a loss reduction of at least 5%.Military planes like the F-22 and commercial planes like the Boeing 787 use 270V DC for their battery systems. While the 270V DC system has some advantages, such as reducing losses and the size of passive elements, old avionics that have been developed, manufactured, and used since World War II have some limitations. It's possible that it won't work with the 270V DC system. For both old and new systems, converting from 270V to 28V appears to be very promising. As a result, this study proposes a buck converter design for 270 to 28V conversion to adapt older avionics technology to contain innovative achievements. The study of an interleaved synchronous buck converter based on SiC MOSFETs with a double loop PI controller is provided. The paper explains the design principles and speculates on possible innovations. Simulations are used to validate the definition.