Demonstration of a model-free backstepping control on a 2-DOF laboratory helicopter

被引:0
|
作者
Jing-Wen Huang
You Fan
Ying Xin
Zhi-Chang Qin
机构
[1] Beijing University of Chemical Technology,School of Mechanical Engineering, Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control
[2] Tianjin University of Technology,School of Transportation and Vehicle Engineering
[3] Shandong University of Technology,undefined
关键词
Model-free backstepping (MFBS); 2-DOF helicopter; Coupled dynamics; Time-varying system;
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学科分类号
摘要
A model-free backstepping (MFBS) control design method is proposed to deal with problems of model uncertainties, dynamic coupling and time-varying coefficients of nonlinear dynamic systems. A popular benchmark system of 2-DOF laboratory helicopter is used to demonstrate and validate the theoretical development. The MFBS method makes use of techniques including the normal form, model estimation and cancellation, and control coefficient substitution. The model estimation is based on the input and output data only. The model free backstepping control is designed with the Lyapunov method and its stability is proven. The equivalence of the control designed with the control coefficient substitution to that with the full knowledge of the model is discussed. Simulation and experimental results are presented to show the effectiveness of the MFBS control design in comparison with a common LQR control.
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页码:97 / 108
页数:11
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