Finite‐time attitude tracking control for rigid spacecraft with control input constraints. Issue 7 (14th February 2017)

• Record Type: Journal Article
• Authors: Zou, An‐Min; de Ruiter, Anton H.J.; Kumar, Krishna Dev
• Is Part Of: IET control theory & applications. Volume 11:Issue 7(2017)
• Page Start: 931
• Page End: 940
• Publication Date: 2017-02-14
• Subjects: attitude control -- space vehicles -- tracking -- control nonlinearities -- actuators -- angular velocity measurement; finite‐time attitude tracking control -- rigid spacecraft -- control input constraints -- input magnitude saturation -- actuators -- homogeneous method -- angular velocity measurement -- control laws; Control theory -- Periodicals; Automatic control -- Periodicals; 629.8312
• DOI: 10.1049/iet-cta.2016.1097
• Languages: English
• ISSNs: 1751-8644

Abstract

Abstract : This study considers the problem of attitude tracking control for rigid spacecraft subject to control input saturation. To address this problem, a smooth model is first proposed to describe the input magnitude saturation. The output of the model is always in agreement with the constraints imposed by the actuators. Then, two finite‐time attitude tracking control schemes are designed based on the model derived here and the homogeneous method. The measurement of angular velocity is required in the first scheme while it is relaxed in the second one. Finally, the effectiveness of the proposed control laws is illustrated by numerical simulations.