In region of high angle-of-attack, pilots are not only concerned with the value of angle-of-attack, but also the angle rate, which is a measure of the aggressiveness approaching. Using phase plane method, dual protection targets: angle-of-attack and its rate limitation are proposed. A two-degree-of-freedom angle-of-attack protection control law is designed, comprised of desired command model and a Linear Quadratic Regulator (LQR) controller. The frequency shaping technique is used to optimize the feedback gain, which simplifies the selecting the weight matrixes Q and R. The simulation results show that the dual targets protection control law effectively prevents angle-of-attack overshoot. At the same time, the pseudo-linear characteristic of the angle-of-attack rate is maintained, that make the angle-of-attack dynamic is predictable.


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    Title :

    Angle-of-Attack Protection Control Law Design Based on Phase Plane Analysis


    Additional title:

    Lect. Notes Electrical Eng.


    Contributors:
    Yan, Liang (editor) / Duan, Haibin (editor) / Yu, Xiang (editor) / Bo, Wang (author) / Jiang, Feihong (author) / Zhenghong, Gao (author)


    Publication date :

    2021-10-30


    Size :

    14 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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