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Multiple model adaptive control based on the divided scope of bounded disturbance
Author(s): LI Xiao-li, ZHANG Wei-cun, WANG Wei
Pages: 283-
286
Year: 2006
Issue:
2
Journal: CONTROL THEORY & APPLICATIONS
Keyword: 有界扰动; 多模型; 自适应控制;
Abstract: 对于含有界扰动的离散时间系统,将有界扰动变化范围分割成若干小区间,针对这些区间建立多个自适应模型,并针对每一个自适应模型建立相应的控制器.给定一个指标切换函数,基于多个自适应模型控制器和给定的指标切换函数构成多模型自适应控制器.可以证明多模型自适应控制器能够保证闭环系统是输入输出有界稳定的.仿真实例表明,当被控对象的有界扰动随时间变化的时候,采用单一模型自适应控制,系统输出很难跟踪设定值,而多模型自适应控制器却极大地改善了控制品质.
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