Smooth Second Order Sliding Mode Control for Reusable Launch Vehicle in Reentry Phase

摘要：

This paper describes the design of nonlinear robust controller for reusable launch vehicle which is nonlinear, multivariable, strong coupling, and includes uncertain parameters and external disturbance. Firstly, the feasible guidance strategy is introduced to obtain the desired guidance commands. Then, the attitude control model is converted to integral chain system. Next, the continuous finite time convergence second order sliding mode controller is designed for the normal system. In order to improve the robustness, the nonlinear disturbance observer is proposed to suppress the uncertainties and external disturbances. Furthermore, the synthesis of controller and disturbance observer is used to achieve the attitude tracking for reusable in reentry phase. Finally, the six-degree-of-freedom (6-DOF) simulation results verify the effectiveness of the control strategy.

关键词： smooth sliding mode control nonlinear disturbance observer reusable launch vehicles six-degree-of-freedom

作者: TIAN Bailing ZONG Qun WANG Fang WANG Jie

作者单位: School of Electric and Automation Engineering, Tianjin University, Tianjin 300072, P. R. China

会议类型: 国际会议

会议名称: The 31st Chinese Control Conference(第三十一届中国控制会议)

会议地点: 合肥

会议语种:英文

页码: 583-588

在线出版日期: 2012-07-01（万方平台首次上网日期，不代表论文的发表时间）