A distributed predefined-time attitude coordination control scheme for multiple rigid spacecraft

“…Function: f : R n → R n is nonlinear and continuous, and f (0) = 0. Lemma 1: [24] For the system (1), if there is a Lyapunov function V (x), it satisfies the following conditions…”

Section: Preparation and Problem Formulation A Key Definitions And Le...mentioning

confidence: 99%

“…However, the relationship between control parameters and CT is often complex, and the estimation of CT is too conservative. To further solve this problem, a predefined time control algorithm was proposed, which can predetermine the convergence time boundary [15]. Due to this major advantage, predefined time control algorithms have been applied in practical systems such as aerospace [16] and underwater robots [17].…”

Section: Introductionmentioning

confidence: 99%

Tunable Predefined Time Nonsingular Terminal Sliding Mode Control Based on Neural Network for Nonlinear Systems

Jia,

Liu

2023

IEEE Access

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This paper proposes a novel predefined time nonsingular terminal sliding mode control (TSMC) based on radial basis function neural network (RBFNN) for nonlinear systems. Firstly, a new lemma of tunable predefined time stability (PTS) is proposed, where the introduction of an adjustable parameter can adjust the stability time of the system and makes the design of the controller more flexible. Secondly, based on the proposed lemma, a new control method is proposed, which not only guarantees the PTS of the system, but also solves the singularity problem of the traditional TSMC and the problem of unknown model information. Finally, through comparative simulation, it is verified that the proposed method has good control performance. INDEX TERMSTerminal sliding mode control, Predefined time control, Neural network control, Robust nonlinear control, Nonsingular control.

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“…A predefined‐time controller was designed to guarantee that the spacecraft attitude tracking system converges at an arbitrary predefined time 24 . The predefined‐time distributed attitude synchronization problem was investigated for multiple spacecraft subjects to external disturbance and angular velocity unknown 25 . While, the transient or the steady‐state performance of the system cannot be controlled when predefined‐time control strategies are used.…”

Section: Introductionmentioning

confidence: 99%

“…24 The predefined-time distributed attitude synchronization problem was investigated for multiple spacecraft subjects to external disturbance and angular velocity unknown. 25 While, the transient or the steady-state performance of the system cannot be controlled when predefined-time control strategies are used. In order to restrict the output of a nonlinear system into a predefined residual set with prescribed transient performance, prescribed performance control (PPC) methods have been proposed by Bechlioulis and Rovithakis.…”

Section: Introductionmentioning

confidence: 99%

Continuous appointed‐time prescribed performance attitude tracking control for rigid spacecraft with actuator faults on SO(3)

Huang,

Zhang

2023

Intl J Robust & Nonlinear

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In this article, the attitude tracking problem for rigid spacecraft subject to external disturbance, inertia uncertainties, and actuator faults is investigated. A novel continuous control strategy is proposed to guarantee that the attitude tracking errors converge with desired performance before an appointed time. In addition, the proposed control law can enable the closed‐loop system to be unwinding‐free. For the purpose, a modified appointed‐time performance function (APF) is used to construct a disturbance observer‐based adaptive attitude control law based on the special orthogonal group (SO(3)). With the aid of the modified APFs, desired performance metrics, including transient and steady‐state performance, on the attitude tracking error can be specified in advance without the requirement for initial values of the tracking system to avoid singularity. By resorting to error transformation and backstepping technique, the control design process is simplified and a few control gains are involved in the proposed control law. Rigorous stability analysis based on the Lyapunov theory is provided to prove the appointed‐time stability of the attitude tracking error as well as the boundedness of all signals in the closed‐loop system despite external disturbance, inertia uncertainties, and actuator faults. Finally, numerical simulations are conducted to support the analysis.

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A distributed predefined-time attitude coordination control scheme for multiple rigid spacecraft

Cited by 11 publications

References 31 publications

Recent Progress in Robot Control Systems: Theory and Applications

Recent Progress in Robot Control Systems: Theory and Applications

Tunable Predefined Time Nonsingular Terminal Sliding Mode Control Based on Neural Network for Nonlinear Systems

Continuous appointed‐time prescribed performance attitude tracking control for rigid spacecraft with actuator faults on SO(3)

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