Research on Physical Simulation Experiments for Satellite Multi-axis Pointing Control

摘要

For multi-body satellites with large solar panels and antennas, it's an important task to conduct the physical simulation experimental research on the combined control of attitude and antenna pointing. This paper mainly designs the physical simulation experimental system for satellite multi-axis pointing control, which is composed of a single axis air bearing table, a large solar panel, and a real antenna. The dynamic model of this experiment system is derived using Lagrange's equations. A multi-axis pointing control scheme is studied for body attitude and antenna pointing, and a nonlinear control algorithm is designed according to the "wheel-thruster" actuator mode, considering control precision and gas consumption. The experimental results verified that the control system is effective, and the control algorithm is feasible in real time system. The multi-axis pointing precision is high and the consumption of gas is low. This work is important in practical engineering for multi-axis pointing control of multi-axis satellites.