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一类具有执行器故障的马尔科夫跳跃系统容错控制

DOI: 10.3969/j.issn.1005-3026.2014.09.001, PP. 1217-1220

Keywords: 马尔科夫跳跃系统,部分已知转移概率,执行器故障,自适应估计,容错控制

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Abstract:

研究一类转移概率部分已知马尔科夫跳跃线性系统的自适应容错控制问题.所考虑的转移概率情况更具一般性,即转移概率包括完全已知,未知但已知转移概率的上下界和完全未知三种情况.针对执行器失效故障,首先设计自适应故障估计器;而后,基于故障参数的估计值设计鲁棒补偿控制器,保证系统在发生执行器故障时的鲁棒稳定性.在处理未知转移概率时,采用自由权重的方法,以保证所得线性矩阵不等式条件具有更小的保守性.最后,数值仿真算例验证了所提方法的有效性.

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