Robust backstepping decentralized tracking control for a 3-DOF helicopter

被引:31
|
作者
Yu, Yao [1 ,2 ]
Lu, Geng [2 ]
Sun, Changyin [1 ]
Liu, Hao [3 ]
机构
[1] Univ Sci & Technol Beijing, Sch Automat & Elect Engn, Beijing 100083, Peoples R China
[2] Tsinghua Univ, Dept Automat, TNList, Beijing 100084, Peoples R China
[3] Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China
基金
北京市自然科学基金;
关键词
3-DOF helicopter; Decentralized control; Backstepping; Robust control; Uncertain system; ATTITUDE-CONTROL; NONLINEAR-SYSTEMS; ADAPTIVE-CONTROL; FORMATION FLIGHT; CONTROL DESIGN;
D O I
10.1007/s11071-015-2209-8
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A three-degree-of-freedom helicopter attitude tracking control system can be described as a multi-input multi-output strict-feedback form system with unknown parameters, bounded disturbances, and nonlinear uncertain cross-couplings. Both norm-bounded and nonlinear uncertainties are discussed. The whole nonlinear system is divided into a nominal disturbance-free system and an equivalent disturbance part. A robust control method based on signal compensation technique and backstepping decentralized control is proposed. Robust practical tracking property of closed-loop system is proven, and the tracking error can be made as small as desired with expected convergence rate. Experimental results demonstrate the improved tracking performance of the attitude tracking control system with different types of reference signals, such as step signals, ramp signals, and nonstationary sinusoidal signals.
引用
收藏
页码:947 / 960
页数:14
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