An overview is presented of the emergence of the All Electric flight control system (FCS) or power-by-wire (PBW) concept. The concept of fly-by-power refers to the actuator using electrical rather than hydraulic power. The development of the primary flight control Electromechanical Actuators (EMAs) is one of the essential steps in the implementation of the All Electric Aircraft. There is a great deal of interest in the application of brushless motors (BM) with rare-earth magnet rotors using external commutation as EMAs for flight control systems. The purpose of this paper is to present a theoretical investigation of EMAs based on the BM description: electromechanical architecture, magnet materials, operating principles, electromagnetic processes, etc. In order to design current, position, torque, and speed controllers for BM, the general theory of electromechanical and electromagnetic processes in electrical machines and power converters is used. This report describes a basic approach to the creation of mathematical models for BM with rectangular and sinusoidal current waves. It presents the hardware for position, torque, and current control systems for EMAs.


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    Title :

    System Look at Electromechanical Actuation for Primary Flight Control


    Contributors:

    Publication date :

    1995


    Size :

    128 pages



    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English