Analysis of 270VDC Electrical Power Distribution System Architectures in more Electric Aircraft Applications

In the aviation industry, as a result of rapid development in electrical technology, mechanical, pneumatic and hydraulic systems ae being replaced with their highly efficient electrical equivalent. Moreover, mission and avionic systems equipment, which have challenging electrical characteristics, are developed. In order to meet the increasing electrical power demand of the aircraft systems, development of high voltage More Electric Aircraft electrical power systems topologies and power electronic devices that make these architectures possible, are required. In scope of this study, More Electric Aircraft concept is detailed reviewed with related electrical sub-systems. B787, F-35 and F- 22 modern civil and military aircraft models that have 270VDC power distribution system architecture and system components are analyzed.