The use of more-electric aircraft (MEA) technology on next-generation commercial passenger airplanes has significantly impacted airborne electrical power system design. Many functions that are traditionally operated by hydraulic, pneumatic, or mechanical power are electrified in order to reduce volume and weight as well as to improve fuel efficiency. This has resulted in the use of large number of motor drives for such functions as fuel pumping, cabin pressurization and air conditioning, engine start, and flight control actuation, making power electronics an indispensable part of MEA technologies. The high percentage of electrical power processed by power electronic circuits and control, which are nonlinear and much more dynamic compared to conventional electromagnetic and electromechanical energy conversion devices, poses new challenges for the design and operation of MEA electrical systems. Of particular concerns are: a) electromagnetic interference (EMI), b) harmonic distortion and other power quality problems, and c) system interactions and instability caused by motor drives and other actively regulated loads. It is provided an overview of high-performance power conversion technologies for MEA applications. A brief review of power electronics applications on MEA and the associated EMI, power quality, and system stability problems as well as applicable regulatory requirements is provided first. This is then followed by an overview of research and state-of-the-art technologies on several closely related topics, including: 1) high-performance ac-dc conversion using pulse-width modulation (PWM) and multi-pulse techniques capable of meeting variable-frequency electrical system power quality requirements; 2) EMI modeling, EMI reduction by control and packaging, and systems approach to EMI design optimization; 3) system stability and harmonic resonance as well as the mitigation of such problems by passive and active methods.


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    Title :

    High-performance power conversion for more-electric aircraft


    Additional title:

    Hoch effektive Leistungswandlung für Flugzeuge mit mehr Elektrizitätsnutzung


    Contributors:
    Sun, Jian (author)


    Publication date :

    2010


    Size :

    11 Seiten, 6 Bilder, 2 Tabellen, 45 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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