Title:Attitude and Orbit Control of a Space Robot at Additional Launching and
Approaching a Geostationary Satellite
Volume: 2
Issue: 3
Author(s): Yevgeny Somov*, Sergey Butyrin and Sergey Somov
Affiliation:
- Department for Navigation, Guidance and Control, Samara State Technical University, Samara 443100, Russia
- Department for Dynamics and Control, Samara Federal Research Scientific Center RAS, Samara 443001, Russia
Keywords:
Space robot, additional launching, geostationary satellite, approaching, orbit control, algorithms.
Abstract:
Background: The problems of putting a space robot into a geostationary orbit using a
combined scheme and its approach to a geostationary satellite are considered. The authors’ previous
results on this topic are briefly analyzed.
Objective: The paper deals with three problems: further development of a rational strategy for the
robot’s add-launching on geostationary orbit and its approaching target using a plasma electric propulsion
unit only; synthesis of the guidance and control laws; a nonlinear dynamical analysis of the
robot’s attitude and orbit control system during these modes.
Methods: The developed methods and algorithms are based on the local optimizing the fuel consumption
of the plasma electric propulsion unit during each inter-orbital flight of a space robot.
Results: Simulation results on the guidance and control algorithms are presented that demonstrate
their effectiveness.
Conclusion: The breakthroughs are as follows: original strategy of add-launching and forecasting
the influence of gravitational disturbances as well as solar pressure forces when synthesizing a robot’s
guidance law for its inter-orbital flights.
