Input‐to‐state stability‐based adaptive control for spacecraft fly‐around with input saturation

Wang, Yu; Ji, Haibo

doi:10.1049/iet-cta.2019.0634

Cited by 14 publications

(20 citation statements)

References 28 publications

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“…In this section, three numerical experiments are carried out to demonstrate the effectiveness of the proposed control scheme ( 43)- (47). Specifically, the first experiment illustrates that the AUV could operate at any attitude motion under the controller's effort.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…According to equality c i = ∫ 𝛼 i 0 𝜌 i (𝛽) d𝛽, we ultimately can obtain (22). Meanwhile, since P (𝜏 i ) is a continuous function, 46,47 the boundedness of P (𝜏 i ) is ensured as well. This conclusion, in turn, implies that there is an unknown constant d satisfying d i < d. At this point, the proof of Lemma 5 is completed.…”

Section: Actuator Modelmentioning

confidence: 95%

See 1 more Smart Citation

Finite‐time rotation‐matrix‐based tracking control for autonomous underwater vehicle with input saturation and actuator faults

Zhu

Huang

et al. 2021

Intl J Robust & Nonlinear

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This article tackles the finite-time global trajectory tracking control problem of the autonomous underwater vehicle (AUV) in presence of input saturation constraints, actuator faults, unknown dynamics, and external disturbances. First, we describe the orientation of the AUV by rotation matrix instead of classical Euler angle or unit quaternion such that the AUV's dynamics could be globally formulated without singularity and unwinding phenomenon. After that, a smooth dead zone-based model is introduced here to linearize the actuator model, leaving that the adaptive laws could be suitable for the solution of input saturation and actuator faults. Considering that the difficulty of model dynamic acquirement, together with the complicity of rotation-matrix-based representation, would trouble deployment of the controller. The minimum learning parameter technology is thereby utilized to approximated the dynamic nonlinearity of the AUV. On the basis of these, a rotation-matrix-based sliding mode control scheme is technically proposed. It is proved that the tracking errors can be stabilized to a small neighborhood of origin within a settling time. Finally, several set numerical experiments are conducted to assess the effectiveness and show the advantages of the proposed control scheme.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Actuator Modelmentioning

confidence: 95%

Finite‐time rotation‐matrix‐based tracking control for autonomous underwater vehicle with input saturation and actuator faults

Zhu

Huang

et al. 2021

Intl J Robust & Nonlinear

View full text Add to dashboard Cite

show abstract

“…As DTCs are usually applied to control systems with big delays (where conventional controllers such as PID and feedback gains alone are not as effective), the LMI conditions should, ideally, have a low number of decision variables to avoid tractability problems due to the high dimensionality of (7). Due to that, the augmented functional approach of [39] is not practical and can lead to high numerical complexity.…”

Section: More Details On the Formulation And Contributionsmentioning

confidence: 99%

Analysis and experimental application of a dead‐time compensator for input saturated processes with output time‐varying delays

Lima

Tarbouriech

Gouaisbaut

et al. 2021

IET Control Theory & Appl

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Dead-time compensators (DTCs) are a family of classical controllers derived from the Smith Predictor. Their main characteristic is that they explicitly employ the model of the open-loop process to feedback a predicted value of the non-delayed system, thus obtaining compensation of the delay. Such a perfect compensation is not achievable in the case of time-varying delays. This paper addresses stability analysis of a DTC structure in this situation, in addition to considering saturating actuators and disturbances of limited energy. Specific challenges related to the DTC closed loop are taken into account in the developed theoretical conditions, which are expressed in terms of linear matrix inequalities by using an adequate Lyapunov-Krasovskii functional and generalised sector conditions. Furthermore, a new approach for the definition of the set of initial conditions in an augmented space in conjunction with the Lyapunov-Krasovskii functional is presented. Besides theoretical innovations, practical discussion about the relation between the tuning of DTC controllers and robustness for this class of systems is presented through numerical examples. An experimental application on a neonatal incubator prototype is carried out to emphasise the effectiveness of the results.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…Applying technologies such as anti-windup compensator [27], low gain feedback [28] and gain scheduling [29], fruitful control algorithms taking control input saturation into account have been presented by researchers [30][31][32][33][34][35]. In the field of spacecraft control, there have been a number of researches that consider input saturation as well [36][37][38][39][40]. Among those results, time-varying sliding mode control [36] is an insightful method because it has the advantages in explicitly stating the maximum control input, having strong robustness and reducing control chattering.…”

Section: Introductionmentioning

confidence: 99%

Finite‐time attitude‐orbit integrated tracking control of flexible spacecraft under input saturation

Fan

Liu

et al. 2022

IET Control Theory & Appl

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This paper investigates the attitude-orbit integrated modeling and robust control of flexible spacecraft with input saturation. First, the dual-number method is employed to describe the dynamic model of the spacecraft with the flexible appendage. Then, a fast terminal sliding mode control law is designed to stabilize the attitude-orbit control system of the spacecraft. In addition, considering the input saturation, a time-varying siding surface based terminal sliding mode control law is further proposed to solve the design problem. Under the designed control laws, the state trajectories of the attitude-orbit coupled control systems can achieve to be finite-time stable, and the reachability of the proposed sliding surface can be ensured at the same time. Finally, through numerical simulations and comparison with the conventional methods, the superiority of the proposed control strategies in convergence speed and convergence accuracy is verified, and the feasibility of engineering application is verified.

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Input‐to‐state stability‐based adaptive control for spacecraft fly‐around with input saturation

Cited by 14 publications

References 28 publications

Finite‐time rotation‐matrix‐based tracking control for autonomous underwater vehicle with input saturation and actuator faults

Finite‐time rotation‐matrix‐based tracking control for autonomous underwater vehicle with input saturation and actuator faults

Analysis and experimental application of a dead‐time compensator for input saturated processes with output time‐varying delays

Finite‐time attitude‐orbit integrated tracking control of flexible spacecraft under input saturation

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