Improved Phase Plane Attitude Control of Space Vehicles with Extended State Observer Considering Disturbance and Thruster Dynamics

【摘要】：Modern space vehicles face the challenge of large disturbances in attitude control,such as the environmental torques,flex/slosh dynamics.Furthermore,the robust behavior of the attitude controller is largely restricted by the thruster dynamics.This paper presents a robust phase plane controller augmented by extended state observer with special attention on disturbance attenuation and thruster dynamics compensation.The proposed controller is validated with stability analysis and compared to the traditional phase plane controller in simulation studies,showing superior performance in disturbance rej ection and reference tracking.