Dynamic Surface Control with Nonlinear Disturbance Observer for Uncertain Flight Dynamic System  

作　　者：李飞 胡剑波 吴俊 王坚浩 

机构地区：[1]Equipment Management and Safety Engineering College,Air Force Engineering University [2]Institute of Cyber-Systems and Control,Zhejiang University [3]Unit 93286,People's Liberation Army

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2015年第4期469-476,共8页南京航空航天大学学报（英文版）

基　　金：supported by the Open Research Project of the State Key Laboratory of Industrial Control Technology Zhejiang University China(No.ICT1401);Shanghai Leading Academic Discipline Project(No.J50103)

摘　　要：A new robust control method of a nonlinear flight dynamic system with aerodynamic coefficients and external disturbance has been proposed.The proposed control system is a combination of the dynamic surface control(DSC)and the nonlinear disturbance observer(NDO).DSC technique provides the ability to overcome the″explosion of complexity″problem in backstepping control.NDO is adopted to observe the uncertainties in nonlinear flight dynamic system.It has been proved that the proposed design method can guarantee uniformly ultimately boundedness of all the signals in the closed-loop system by Lyapunov stability theorem.Finally,simulation results show that the proposed controller provides better performance than the traditional nonlinear controller.A new robust control method of a nonlinear flight dynamic system with aerodynamic coefficients and external disturbance has been proposed.The proposed control system is a combination of the dynamic surface control（DSC）and the nonlinear disturbance observer（NDO）.DSC technique provides the ability to overcome the″explosion of complexity″problem in backstepping control.NDO is adopted to observe the uncertainties in nonlinear flight dynamic system.It has been proved that the proposed design method can guarantee uniformly ultimately boundedness of all the signals in the closed-loop system by Lyapunov stability theorem.Finally,simulation results show that the proposed controller provides better performance than the traditional nonlinear controller.

关 键 词：nonlinear disturbance observer(NDO) dynamic surface control(DSC) UNCERTAINTIES flight control 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]