Research on Solar Tracking Control System of the Space Station’s Solar Alpha Rotary Joint

摘要

A high stability servo control scheme with motion planning and vibration suppression is proposed for solar tracking control of the space station’s solar alpha rotary joint (SARJ). The flexible dynamic model of solar cell wing and the electromechanical equation of SARJ are derived. Based on the dynamic modeling, a combined control system including spline motion planning, angle and angular velocity integral separation controller and velocity loop notch filter is designed. Through the simulation verification of solar cell wing solar tracking process, it is shown that the control scheme can achieve better tracking accuracy with large inertia and ultra-low frequency solar cell wing.