日本航空宇宙学会論文集
Online ISSN : 2432-3691
Print ISSN : 1344-6460
ISSN-L : 1344-6460
状態フィードバック系のディジタル再設計法とCCV飛行制御系設計への適用
家子 達越智 徳昌金井 喜美雄
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1999 年 47 巻 541 号 p. 58-66

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This paper proposes a new digital redesign method for linear state-feedback control systems with fixed gain matrices. The method is based on the discretization of the closed-loop control input signal, and then the principle of equivalent area is applied to this discretization. In the closed-loop system the proposed method achieves second-order approximation to the underlying continuous-time state-feedback control system. The proposed method is applied to a digital CCV flight control system design based on the decoupling control. Since from a characteristics of the step invariance discrete-time model the discrete-time approach which designs discrete-time controllers for the discrete-time plant model cannot be applied to the decoupling control, the digital redesign approach is used. The simulation results indicate that the proposed method redesigns the continuous-time state-feedback control system more satisfactorily in control performance than other methods.

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© The Japan Society for Aeronautical and Space Sciences
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