Event-triggered adaptive terminal sliding mode tracking control for drag-free spacecraft inner-formation with full state constraints

Wang, Enyou; Qiu, Shi; Liu, Ming; Cao, Xi‐Ren

doi:10.1016/j.ast.2022.107524

Cited by 22 publications

(19 citation statements)

References 37 publications

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“…Lemma 1 (31). For the multi-spacecraft system (13), defining q(t) = Δ•p(t), then, we have ‖Δ‖ ∞ ≤ h m .…”

Section: The Event-triggered Mechanism and Controller Designmentioning

confidence: 99%

“…On the one hand, for the constraints on inter-satellite data, many scholars are dedicated to the research of event-triggered control, and many important results of event-triggered control were presented. [10][11][12][13][14][15][16][17] For instance, a performance adjustable event-triggered mechanism with static threshold parameter and auxiliary dynamic variable (ADV) was proposed for multi-spacecraft attitude systems in Reference 10. A centralized event-triggered mechanism and a discrete controller were designed to make the system to group attitude coordination in literature.…”

Section: Introductionmentioning

confidence: 99%

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An attitude cooperative control for multi‐spacecraft systems with arbitrary input delay time‐variation rate: A dynamic event‐triggered approach

Meng

2023

Intl J Robust & Nonlinear

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A problem of the attitude cooperative control of multi-spacecraft systems with input time-varying delay under an undirected graph is addressed in this paper, where the delay does not require any assumption on the continuity of the delay and its time-variation rate. Considering the communication bandwidth constraint and Zeno behavior, a dynamic event-triggered scheme is presented, which is more general than some existing event-triggered schemes with a fixed threshold. By Lyapunov function technology, sufficient conditions of bilinear matrix inequality (BMI) for the existence of controller gain are proposed firstly such that the closed-loop system is attitude cooperative with a new disturbance attenuation performance. It is also proved that there is a lower bound between two adjacent triggers via the mathematical analytical method, that is, the Zeno phenomenon can be avoided. Finally, the efficacy of the proposed methods is verified via simulations.

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“…Lemma 1 (31). For the multi-spacecraft system (13), defining q(t) = Δ•p(t), then, we have ‖Δ‖ ∞ ≤ h m .…”

Section: The Event-triggered Mechanism and Controller Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An attitude cooperative control for multi‐spacecraft systems with arbitrary input delay time‐variation rate: A dynamic event‐triggered approach

Meng

2023

Intl J Robust & Nonlinear

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“…Theorem 1. Consider the relative dynamics (7) with the desired position (8), under Assumption 1-3, design the ET-ATSM capturing controller in Equation ( 20) and ( 29) with adaptive law (21) and collision avoidance term (25), the capture process of the IFDFS can be finished in a finite time 𝜏 c with the prescribed performance constraint (15). In particular, 𝜏 c can be estimated as:…”

Section: The Et-atsm Capturing Controller Designmentioning

confidence: 99%

“…Theorem 2. Consider the position dynamics ( 5) under Assumption 1-3, design the ET-ATPP capturing control strategy ( 59) and (29) with collision avoidance term (25), if 𝜅 ρ0 > max i, j (|𝜌 i, j (0)|), 𝜅 𝜂 0 > max i, j (|𝜂 i, j (0)|), and 𝜄 3 > 𝓁 Ξ ρ , where 𝓁 Ξ ρ ∶= max i (Ξ 𝜌,i ), the performance constraints (49) and (50) for ρi (t ) and 𝜂 i (t ) can always be guaranteed for t ≥ 0. More specifically, ρi, j (t ), 𝜂 i, j (t ) and ̇ρ i, j (t ) ( j = 1, 2, 3) will converge to the stability regions 𝕌 ρ,i j , 𝕌 𝜂,i j , and 𝕌 ̇ρ,i j before the predefined duration T c .…”

Section: The Et-atpp Capturing Controller Designmentioning

confidence: 99%

“…Many event‐triggered‐based control approaches have been implemented for the spacecraft control problem with different triggering conditions, for example, the relative threshold rule [22], the exponential rule [23], and the self‐triggered rule [24]. In [25], we have proposed an event‐triggered adaptive terminal sliding mode tracking control for drag‐free spacecraft inner‐formation problems, which can save the communication resource without any Zeno behavior. Nevertheless, it remains open to developing an event‐triggered capturing control strategy for IFDFS.…”

Section: Introductionmentioning

confidence: 99%

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Event‐triggered prescribed performance robust collision‐free capturing control for drag‐free spacecraft system

Wang

Liu

Qiu

et al. 2022

IET Control Theory & Appl

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This paper addresses the capturing control problem of a plug-and-play modularized dragfree spacecraft system, including two spherical proof masses, where the performance constraints, collision risk, uncertain model parameters, unknown external disturbances, and limited communication are considered simultaneously. First, a nonlinear relative dynamics of spherical proof masses with respect to spacecraft is formulated for the capture process. Second, two different prescribed performance event-triggered robust collision-free capturing control strategies are developed to capture the free-floating proof masses successfully. Suppose only the performance metrics on the relative position are considered, and an event-triggered adaptive terminal sliding mode capturing controller is implemented to achieve the capture process within a finite time. Suppose more performance constraints, such as the user predefined capture duration and the performance bounds on both the relative position and the relative velocity, are taken into account, and an event-triggered appointed-time prescribed performance capturing controller is proposed to solve the above issues. In particular, an artificial potential function is utilized to avoid the collision, and a relative threshold event-triggered rule is employed to save the communication source between the controller and the actuator without any Zeno behaviour. The simulation results demonstrate the efficacy and superiority of the proposed method.

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Dynamic event‐triggered orbit coordination for spacecraft formation via a self‐learning sliding mode control approach

Jia,

Gao,

et al. 2024

Intl J Robust & Nonlinear

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SummaryThis article investigates the issue of orbit coordination control for a class of multi‐spacecraft formation systems in presence of limited communication and external disturbance. To solve the limitation of communication sources, a dynamic event trigger (DET) mechanism is developed to reduce the communication frequency between the follower spacecrafts. Subsequently, we explore a robust DET mechanism‐based distributed self‐learning sliding mode control design, in which a variable learning intensity‐based iterative learning algorithm is designed to approximate and compensate space perturbation. This approach can guarantee an event triggering sequence without Zeno phenomenon and accurate coordination control for formation configuration simultaneously. Compared with the traditional event‐triggered control and other state‐of‐the‐art approaches, the distributed DET control scheme achieves higher control accuracy of formation configuration meanwhile requires less communication resource. Finally, a series of numerical simulations demonstrate the feasibility and superiority of the event triggered control method.

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Event-triggered adaptive terminal sliding mode tracking control for drag-free spacecraft inner-formation with full state constraints

Cited by 22 publications

References 37 publications

An attitude cooperative control for multi‐spacecraft systems with arbitrary input delay time‐variation rate: A dynamic event‐triggered approach

An attitude cooperative control for multi‐spacecraft systems with arbitrary input delay time‐variation rate: A dynamic event‐triggered approach

Event‐triggered prescribed performance robust collision‐free capturing control for drag‐free spacecraft system

Dynamic event‐triggered orbit coordination for spacecraft formation via a self‐learning sliding mode control approach

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