An LMI-based decoupling control for electromagnetic formation flight

Huang, Xin; Zhang, Chun; Lu, Hongqian; Yin, Hang

doi:10.1016/j.cja.2015.01.003

Cited by 14 publications

(3 citation statements)

References 17 publications

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“…Later studies predominantly focused on decoupling and frequency multiplexing applications. Huang suggested combining frequency multiplexing with an adaptive sliding mode controller, informed by learning algorithms, to manage the relative positioning of satellites [10]. Zhang employed sinusoidal and steady electromagnetic fields to regulate the relative positioning and to mitigate the accumulation of angular momentum caused by the Earth's magnetic field [11].…”

Section: Introductionmentioning

confidence: 99%

Passivity-Based Control with Disturbance Observer of Electromagnetic Formation Flight Spacecraft in the Port-Hamiltonian Framework

Wang,

Zhou,

Zheng

et al. 2024

Applied Sciences

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Satellite formation flying technology currently represents a focal point in space mission research. Traditional spacecraft payload performance and lifespan are often constrained by propellant limitations. Electromagnetic Formation Flying (EMFF), a propellant-free formation flying technique, has garnered widespread attention. Its inherent strong nonlinearity and coupling present challenges for high-precision control within EMFF. This paper presents the relative motion dynamics of a two-satellite EMFF in the port-Hamiltonian framework and constructs an accurate nonlinear model of the dynamics. Utilizing the concept of Interconnection and Damping Assignment and nonlinear disturbance observer, a composite disturbance-rejection passivity-based controller is designed, offering a method for controlling the magnetic dipole strength of formation satellites. Finally, numerical simulations are conducted to demonstrate the viability of the proposed dynamics model and control strategy.

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Section: Introductionmentioning

confidence: 99%

Passivity-Based Control with Disturbance Observer of Electromagnetic Formation Flight Spacecraft in the Port-Hamiltonian Framework

Wang,

Zhou,

Zheng

et al. 2024

Applied Sciences

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“…In recent years, space technology has become one of the most important technologies in modern science. [1][2][3][4] Because of the diversity of space missions, it causes some problems when certain design goals are achieved by one single satellite. For example, the structure becomes more complex, the period of research and development becomes longer, and the costs increase.…”

Section: Introductionmentioning

confidence: 99%

Neural network-based distributed adaptive configuration containment control for satellite formations

Sun

Chen

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part G:

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Considering unknown perturbations and model uncertainties, this paper investigates the configuration containment control for satellite formations based on directed communication topologies. We consider that there are multiple leader satellites with constant relative velocities, while only a subset of follower satellites have access to the leaders. First, a distributed velocity observer is proposed for each follower to obtain velocity information of the leaders. Then, a distributed adaptive configuration containment control algorithm is proposed in which the model nonlinear uncertainties are approximated and compensated through neural networks, while the perturbations and approximation errors are compensated by adaptive gain technique. Furthermore, subject to the chattering caused by sign functions, an improved continuous containment strategy is developed. We use graph theory, Lyapunov theory, and Barbalat lemma to demonstrate that both proposed methods can make all the follower satellites converge to the convex hull spanned by the leader satellites. Numerical examples and comparisons are provided to show the effectiveness and performances of the proposed control strategies.

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“…In recent years, a lot of research on EMFF has also been conducted in China, which mainly focuses on the relative equilibrium state of EMFF, dynamics and control of EMFF. Various controllers have been proposed, such as the finite-time controller (Zeng and Hu, 2012), error feedback controller (Cai et al , 2013), adaptive controller (Zhang et al , 2014) and LMI-based controller (Huang et al , 2015).…”

Section: Introductionmentioning

confidence: 99%

Rotational and relative translational control for satellite electromagnetic formation flying in low earth orbit

Fan

Yang

2017

AEAT

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Purpose The purpose of this paper is to develop a theoretical design for the attitude control of electromagnetic formation flying (EMFF) satellites, present a nonlinear controller for the relative translational control of EMFF satellites and propose a novel method for the allocation of electromagnetic dipoles. Design/methodology/approach The feedback attitude control law, magnetic unloading algorithm and large angle manoeuvre algorithm are presented. Then, a terminal sliding mode controller for the relative translation control is put forward and the convergence is proved. Finally, the control allocation problem of electromagnetic dipoles is formulated as an optimization issue, and a hybrid particle swarm optimization (PSO) – sequential quadratic programming (SQP) algorithm to optimize the free dipoles. Three numerical simulations are carried out and results are compared. Findings The proposed attitude controller is effective for the sun-tracking process of EMFF satellites, and the magnetic unloading algorithm is valid. The formation-keeping scenario simulation demonstrates the effectiveness of the terminal sliding model controller and electromagnetic dipole calculation method. Practical implications The proposed method can be applied to solve the attitude and relative translation control problem of EMFF satellites in low earth orbits. Originality/value The paper analyses the attitude control problem of EMFF satellites systematically and proposes an innovative way for relative translational control and electromagnetic dipole allocation.

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An LMI-based decoupling control for electromagnetic formation flight

Cited by 14 publications

References 17 publications

Passivity-Based Control with Disturbance Observer of Electromagnetic Formation Flight Spacecraft in the Port-Hamiltonian Framework

Passivity-Based Control with Disturbance Observer of Electromagnetic Formation Flight Spacecraft in the Port-Hamiltonian Framework

Neural network-based distributed adaptive configuration containment control for satellite formations

Rotational and relative translational control for satellite electromagnetic formation flying in low earth orbit

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