Nonlinear Control of Flexible Spacecraft Based on LMI Constrained Convex Optimization

摘要：

In this paper, a class of nonlinear controllers is proposed for rotational maneuvers of spacecraft with a pair of flexible appendages attached. With the application of proposed nonlinear feedback torque, dynamic equations of the flexible spacecrafts are converted into the linear parameter-varying (LPV) form. Regional pole assignment for the resultant LPV system is performed via secondary linear state feedback, and the feedback gain is computed through convex optimization constrained by linear matrix inequalities (LMI). It is shown that exponential closed-loop stability of the original spacecraft system can be achieved. Numerical simulations show that the rotational maneuvers can be performed precisely and the vibration is suppressed as well.

作者: GuoQing Zhang Yong Wang Wang Li Yang Zhang

作者单位: Department of Automation,University of Science and Technology of China Hefei,230027,Anhui,PR 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: 279-283

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）