Disturbance observer based composite attitude stabilization of flexible spacecraft

Khouane, Boulanouar; Chen, Han; Zhu, Yu

doi:10.1109/cgncc.2016.7829138

Cited by 1 publication

(5 citation statements)

References 19 publications

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“…Lemma 3. Suppose that Assumption 2 holds, consider the equation of flexible vibration (11) and disturbance observer (13) when the function p( ) is designed as…”

Section: Disturbance Observermentioning

confidence: 99%

“…According to Assumption 2, the error of observer converges to region asymptotically. The estimated frequency can be obtained by RLS according to the flexible vibration (12) and the estimated errors (13). ▪ Remark 1.…”

Section: Disturbance Observermentioning

confidence: 99%

“…The parameters of the proposed controller are chosen as k 1 = 0.7, k 2 = 0.1, a = 5.25, 1 = 0.3, 1 = 2, T = 0.05. Figure 5 shows the disturbances of flexible vibration which is effectively estimated by the disturbance observer (13). Then, according to the observed disturbance, the real frequency of the flexible vibration is obtained by RLS.…”

Section: Simulation Of the Proposed Controller With Proposed Input Shmentioning

confidence: 99%

“…12 A composite attitude controller based on disturbance observer was designed for attitude stabilization control of flexible spacecraft, which was able to estimate flexible vibration by disturbance observer. 13 Although the attitude tracking can be achieved, the flexible vibration still exists. Then, there are many active methods to solve the problem of flexible vibration.…”

Section: Introductionmentioning

confidence: 99%

“…Finite‐time fuzzy sampled‐data controller was used for the flexible vibration , which was used to model the flexible vibration by T−S fuzzy approach according to its good approximation performance 12 . A composite attitude controller based on disturbance observer was designed for attitude stabilization control of flexible spacecraft, which was able to estimate flexible vibration by disturbance observer 13 . Although the attitude tracking can be achieved, the flexible vibration still exists.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Finite‐time attitude tracking control and vibration suppression for flexible spacecraft

Zhu

Zong

Dou

et al. 2021

Intl J Robust & Nonlinear

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In this paper, an adaptive multivariable continuous terminal sliding mode (CTSM) controller with robust input shaper (RIS) is proposed for flexible spacecraft under model uncertainty and external disturbance. Firstly, for the problem of flexible vibration introduced by flexible appendage, the RIS based on disturbance observer is designed. The proposed input shaper can eliminate the flexible vibration effectively even if there are some disturbances in flight. Then, an adaptive multivariable CTSM controller is proposed for attitude tracking of flexible spacecraft, using only information about the output and its first derivative. The features of the developed methods are that it is continuous multivariable controller which attenuates the chattering effectively and the attitude tracking can be achieved in finite time. The stability and robustness properties of the system are proven using Lyapunov function. Finally, some numerical simulations are performed to validate the efficiency of the developed algorithm.

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“…Lemma 3. Suppose that Assumption 2 holds, consider the equation of flexible vibration (11) and disturbance observer (13) when the function p( ) is designed as…”

Section: Disturbance Observermentioning

confidence: 99%

Section: Disturbance Observermentioning

confidence: 99%

Section: Simulation Of the Proposed Controller With Proposed Input Shmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%