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对迟滞三明治系统基于Duhem算子的自适应控制
引用本文:赵新龙,谭永红,赵彤.对迟滞三明治系统基于Duhem算子的自适应控制[J].控制与决策,2007,22(10):1134-1138.
作者姓名:赵新龙  谭永红  赵彤
作者单位:1. 上海交通大学,自动化系,上海,200030
2. 桂林电子科技大学,智能系统与工业控制研究室,广西,桂林,541004
3. 青岛科技大学,自动化系,山东,青岛,266042
基金项目:国家自然科学基金项目(60572055,50265001).
摘    要:对具有迟滞非线性的三明治系统,设计了基于Duhem算子的神经网络自适应控制器.首先对前端动态子系统进行近似补偿;然后用Duhem算子描述所提出的迟滞状态,用神经网络逼近迟滞状态与迟滞输出的关系,实现对迟滞非线性的建模.基于该迟滞模型并采用伪控制技术设计神经网络自适应控制器,通过Lyapunov方法证明了系统的稳定性,并推导出神经网络的权值自适应调整律和控制律.最后通过仿真验证了该方案的有效性.

关 键 词:迟滞  三明治系统  Duhem算子  神经网络  自适应控制
文章编号:1001-0920(2007)10-1134-05
收稿时间:2006/6/25 0:00:00
修稿时间:2006-06-25

Adaptive control of nonlinear system with sandwiched hysteresis using Duhem operator
ZHAO Xin-long,TAN Yong-hong,ZHAO Tong.Adaptive control of nonlinear system with sandwiched hysteresis using Duhem operator[J].Control and Decision,2007,22(10):1134-1138.
Authors:ZHAO Xin-long  TAN Yong-hong  ZHAO Tong
Affiliation:1.Department of Automation,Shanghai Jiaotong University,Shanghai 200030,China; 2.Laboratory of Intelligent Systems and Control Engineering,Guilin University of Electronic Technology,Guilin 541004,China; 3.Department of Automation,Qingdao University of Science and Technology,Qingdao 266042,China
Abstract:A neural adaptive controller based on Duhem operator is presented for sandwich system with hysteresis.The first dynamic block of sandwich system is compensated approximately. Then a hysteretic state is proposed and described by using Duhem operator. The hysteresis model is derived by using the neural networks and the Duhem operator. Based on the hysteresis model, a neural adaptive controller is developed from the pseudocontrol method. The control law and adaptive law are derived from Lyapunov stability theorem, so that the ultimate boundedness of the closed-loop system is guaranteed. Finally, simulation results show the effectiveness of the proposed scheme.
Keywords:Hysteresis  Sandwich system  Duhem operator  Neural networks  Adaptive control
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