Model-free Adaptive Control for Spacecraft Attitude  

作　　者：Ran Xie Ting Song Peng Shi Yushan Zhao 

机构地区：[1]School of Astronautics, Beihang University, Beijing 100191, China [2]Shanghai Institute of Spaceflight Control Technology, Shanghai 200233, China [3]Shanghai Key Laboratory of Aerospace Intelligent Control Technology, Shanghai 200233, China

出　　处：《Journal of Harbin Institute of Technology(New Series)》2016年第6期61-66,共6页哈尔滨工业大学学报（英文版）

基　　金：Sponsored by the National Natural Science Foundation of China(Grant No.11102007);the Fundamental Research Fund for the Central Universities(Grant No.YWF-14-YHXY-012)

摘　　要：A model-free adaptive control method is proposed for the spacecrafts whose dynamical parameters change over time and cannot be acquired accurately. The algorithm is based on full form dynamic linearization.A dimension reduction matrix is introduced to construct an augmented system with the same dimension input and output. The design of the controller depends on the system input and output data rather than the knowledge of the controlled plant. The numerical simulation results show that the improved controller can deal with different models with the same set of controller parameters,and the controller performance is better than that of PD controller for the time-varying system with disturbance.A model-free adaptive control method is proposed for the spacecrafts whose dynamical parameters change over time and cannot be acquired accurately. The algorithm is based on full for^n dynamic linearization. A dimension reduction matrix is introduced to construct an augmented system with the same dimension input and output. The design of the controller depends on the system input and output data rather than the knowledge of the controlled plant. The numerical simulation results show that the improved controller can deal with different models with the same set of controller parameters, and the controller performance is better than that of PD controller for the time-varying system with disturbance.

关 键 词：model-free adaptive control spacecraft attitude control dimension reduction matrix time-varying system 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]