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参数不确定离散随机系统的加权多模型自适应控制

DOI: 10.16383/j.aas.2015.c140340, PP. 541-550

Keywords: 加权算法,加权多模型自适应控制,稳定性,收敛性,虚拟等价系统

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Abstract:

?研究离散时间参数不确定的线性随机系统的加权多模型自适应控制(Weightedmultiplemodeladaptivecontrol,WMMAC)问题,采用一种改进的加权算法,在模型输出误差可分的情况下,可以保证其收敛性;然后在加权收敛的前提下,借助虚拟等价系统的概念和方法证明了此类加权多模型自适应控制系统的稳定性和收敛性.本文所采用的分析方法和结论不依赖于局部控制策略和加权算法的具体形式,而只取决于它们的某些属性.最后,基于Matlab对相应的加权多模型自适应控制系统进行了仿真,仿真结果验证了加权算法的收敛性和闭环控制系统的稳定性、收敛性.

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