AbstractElectro-mechanical flight control actuators have become a viable option as a replacement for conventional hydraulic actuators in future more electric aircraft. A rotor angle measurement is generally required for field-oriented control of the electrical machine and usually obtained from a safety-critical resolver. It contributes, however, to a rising local hardware complexity with a negative impact on space allocation, weight, motor inertia, reliability, and cost. This paper investigates sensorless control strategies that might substitute the resolver with an accurate estimate value. A hybrid observer is implemented that allows position control without an angle sensor at all speeds. In the high speed domain, the extended electromotive force of the permanent magnet synchronous machine is used for angle estimation. In the low speed domain, including standstill, anisotropy properties of the motor are exploited by applying the alternating injection method. The performance of the control algorithm is evaluated on an aileron actuator test rig for a large civil aircraft.


    Access

    Download


    Export, share and cite



    Title :

    Sensorless motor control for electro-mechanical flight control actuators


    Additional title:

    CEAS Aeronaut J


    Contributors:

    Published in:

    CEAS Aeronautical Journal ; 14 , 4 ; 1007-1018


    Publication date :

    2023-10-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Sensorless motor control for electro-mechanical flight control actuators

    Kowalski, Robert / Juchmann, Patrick | Springer Verlag | 2023

    Free access

    FORCE FIGHT COMPENSATION FOR REDUNDANT ELECTRO-MECHANICAL FLIGHT CONTROL ACTUATORS

    Kowalski, R. / Windelberg, J. / Ladner, R. et al. | British Library Conference Proceedings | 2018


    High-torque density integrated electro-mechanical flight actuators

    Lyshevski, S.E. / Skormin, V.A. / Colgren, R.D. | IEEE | 2002



    Electro‐mechanical Actuators

    Maré, Jean‐Charles | Wiley | 2017