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- Title
Passivity-Based Control with Disturbance Observer of Electromagnetic Formation Flight Spacecraft in the Port-Hamiltonian Framework.
- Authors
Wang, Jiaming; Zhou, Qingrui; Zheng, Wei; Shao, Jiang
- Abstract
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.
- Subjects
PASSIVITY-based control; FORMATION flying; ARTIFICIAL satellite attitude control systems; SPACE vehicles; MAGNETIC dipoles; RELATIVE motion
- Publication
Applied Sciences (2076-3417), 2024, Vol 14, Issue 10, p4248
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app14104248