摘要
针对月球探测器飞行任务要求,推导三轴姿态稳定非线性预测控制器,以抑制反作用轮低速摩擦等对姿态的扰动,满足月球探测器高精度姿态稳定控制精度和稳定度的要求.仿真结果表明该控制器控制精度高,能有效抑制飞轮低速摩擦等对姿态的扰动.
The small lunar explorer attitude control system, using reaction wheels as actuators, is a nonlinear system with coupling. In this paper, a nonlinear predictive three-axes attitude controller is developed to suppress reaction wheel low-speed friction effect and meet demand of lunar explorer attitude control system. Simulation results show that the controller proposed in this paper has excellent control precise and robustness, and can suppress reaction wheel low-speed friction effect effectively.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2005年第4期507-511,共5页
Journal of Harbin Institute of Technology
关键词
非线性控制
预测控制
小型月球探测器
姿态控制
Computer simulation
Control nonlinearities
Friction
Nonlinear control systems
Predictive control systems
Robustness (control systems)
Vehicle wheels
