Browse Publications Technical Papers 2008-01-2859
2008-11-11

Fast Reduced Functional Models of Electromechanical Actuators for More-Electric Aircraft Power System Study 2008-01-2859

This paper develops fast reduced-order models for generic aircraft electromechanical actuators (EMA). The models derivation is described in detail. It is shown that constant power load representation has its own dynamics that depend both on the principal machine parameters and upon the pulse-width modulation algorithm used. The accuracy specification cannot be met unless these dynamics are considered. The mechanism to take these dynamics into account by reduced-order models is proposed. Simulation results demonstrate the accuracy within the specified frequency bandwidth and the significant improvement in the computational time. The reported models can be used in a wide range of aircraft power system simulations.

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