Electrical power technology for the more electric aircraft

The Air Force´s More Electric Aircraft (MEA) initiative embraces the concept of utilizing electrical power for driving aircraft subsystems currently powered by hydraulic, pneumatic or mechanical means including utility and flight control actuation, environmental control system, lubrication and fuel pumps, and numerous other utility functions. An important part of this initiative is the development and demonstration of electrical power and power electronic components and systems to enhance reliability, fault-tolerance, power density and performance. This paper describes some of the key electrical power and power electronic technologies being pursued by the Air Force to make the concept of a MEA a reality. The paper describes the results or progress to date of Air Force funded MEA programs such as the Power Management and Distribution for the More Electric Aircraft program, Integral Starter Generator program, and MOS Controlled Thyristor program. A brief discussion of future related programs is included. The integration of advanced MEA technologies is expected to increase dramatically aircraft reliability and reduce susceptibility to battle damage. The needs for aircraft maintenance and support are also expected to be reduced along with ground support equipment and maintenance personnel