Nonlinear Control to Maneuver Two Craft Coulomb Formation at Libration Poınts

The dynamic analysis of a two-spacecraft Coulomb formation at Earth-Moon libration points is addressed. Relative motion control of the two craft coulomb formation are used to keep the distance between them at the desired value. Formation attitude control is realized using low thrust propulsion. The present study utilizes nonlinear controllers for orbit radial, along track, and orbit normal stabilization and tracking control of a two-craft Coulomb formation at Earth–Moon collinear libration points. The nonlinear control is realized using State Dependent Riccati Equation (SDRE), and Approximating Sequence of Riccati Equations (ASRE) methods. To this end the equations of motion of the formation is properly manipulated to obtain a suitable State Dependent Coefficient (SDC) form for control. The effectiveness of the controllers are demonstrated through numerical simulations at collinear libration points, showing the capability of the approaches for formation control.


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State Dependent Riccati Equation Control of Spinning Three Craft Coulomb Formations
Tekinalp, Ozan (null; 2015-01-12)
The relative position control of a collinear spinning three-spacecraft Coulomb formation with set charges is addressed. Such a formation is assumed to be in deep space without relevant gravitational forces present. The nonlinear control is realized through state dependent Riccati equation (SDRE) control method. Relative position control is used to keep a three-craft Coulomb formation about a desired equilibrium collinear configuration. The equations of motion of the formation are properly manipulated to obt...
Citation Formats
O. Tekinalp, “Nonlinear Control to Maneuver Two Craft Coulomb Formation at Libration Poınts,” presented at the AIAA scittech 2015 konferansı, (5 - 09 Ocak 2015), Florida, Amerika Birleşik Devletleri, 2015, Accessed: 00, 2021. [Online]. Available: