Power electronics for aircraft application

Advancements in power electronics technologies have been used widely in the aerospace industry. Lucas Aerospace provides a variable frequency voltage for most of the internal power system in the aircraft, however some components may be required to be operated with DC or fixed frequency voltage. An aircraft power conditioning system is shown. It consists of a variable frequency generator. A part of the output of the generator is rectified to provide low voltage (usually 28 V) and high voltage DC. The high voltage is inverted again to give 115 V RMS, 400 Hz constant frequency. This paper presents a research project which is aimed at producing a high power variable frequency to constant frequency converter. Simulation results are presented and compared with the international standard specifications