Attitude Tracking of a Near-Space Hypersonic Vehicle Using Robust Predictive Control

摘要：

To track the reference attitude angles and angular accelerations in the presence of strong uncertainties and disturbances, a new robust generalized predictive control (GPC) law is presented for a near-space hypersonic vehicle (NHV). The control law consists of the optimal GPC law and radius basis function disturbance observer (RBFDO). The output prediction defined on finite horizon is carried out via Taylor series expansion. The unmodeled dynamics and unknown disturbances in flight are estimated by the RBFDO, and the stability analysis of the close-loop system is provided also. The robust GPC law of the NHV proves to be able to attain the optimal index in mathematics. The simulation results show satisfactory performance of the presented controller for entry attitude tracking control, and the robustness to parameters variations and the disturbance rejection are successfully accomplished.

关键词： near-space hypersonic vehicle nonlinear uncertain system generalized predictive control nonlinear disturbance observer entry attitude tracking

作者: Yanli Du Qingxian Wu Changsheng Jiang Jie Wen

作者单位: College of Automation Engineering Nanjing University of Aeronautics and Astronautics Nanjing,Jiangsu Province,China

会议类型: 国际会议

会议名称: The 2nd International Symposium on Systems and Control in Aeronautics and Astronautics(第二届航空航天系统与控制国际会议 ISSCAA 2008)

会议地点: 深圳

会议语种:英文

页码: 1196-1201

在线出版日期: 2008-12-10（万方平台首次上网日期，不代表论文的发表时间）