Title :
Spacecraft attitude control based on extended state observer and fuzzy logic system
Author :
Wang, Zuo-Wei ; Guo, Jian-Xin ; He, Ying-Zi
Author_Institution :
Beijing Inst. of Control Eng., Chinese Acad. of Space Technol., Beijing, China
Abstract :
The dynamics of spacecrafts with slewing payloads and flexible appendages are complicated, nonlinear, and coupling, which increase the difficulty of control. A new control scheme is presented for a type of flexible spacecrafts with slewing payloads. In the scheme, an adaptive fuzzy logic system (FLS) is designed to approximate the main dynamics of the plant, and an extended state observer (ESO) is introduced to observe and compensate the error of the FLS and quick-varying disturbances; at the same time, the output of the FLS is utilized to improve the performance of the ESO. The simulation results illustrate the effectiveness.
Keywords :
adaptive control; attitude control; fuzzy control; observers; space vehicles; vehicle dynamics; adaptive system; extended state observer; flexible appendages; flexible spacecrafts; fuzzy logic system; slewing payloads; spacecraft attitude control; spacecrafts dynamics; Adaptive systems; Antenna arrays; Fuzzy logic; Modems; Nonlinear dynamical systems; Nonlinear systems; Observers; Payloads; Space vehicles; Stability; Adaptive; Disturbance compensation; Extended state observer; Fuzzy logic system; Spacecraft;
Conference_Titel :
Mechatronics and Automation, 2009. ICMA 2009. International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4244-2692-8
Electronic_ISBN :
978-1-4244-2693-5
DOI :
10.1109/ICMA.2009.5244892
