A projection-based method of fault detection for linear discrete time-varying systems
A projection-based method of fault detection for linear discrete time-varying systems
复制标题
基于投影的线性离散时变系统故障检测方法
DOI:
10.1080/00207721.2011.625481
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发表时间:
2013-03
影响因子:
4.3
通讯作者:
Maiying Zhong
中科院分区:
文献类型:
--
作者:
Maiying Zhong
This article is aimed at the development of a residual generator by making use of an arbitrary linear combination of measurement output estimation error sequence. First, Gramian matrix-based criteria are proposed to measure the influences of an unknown input and a fault on the residual. Then, the design of the residual generator is formulated into a sensitivity/robustness ratio maximisation problem. It is shown that the optimal solution is not unique and one of them can be derived by directly applying an orthogonal projection of the measurement output and, with the aid of an innovation analysis, a more generalised residual generator is also obtained. Furthermore, it is demonstrated that the obtained residual generators in state space description also provide optimal observer-based fault detection filters for the linear discrete time-varying systems subject to l 2-norm bounded unknown inputs or stochastic noise sequences. To show the effectiveness of the proposed method, a numerical example is given.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1109/tsmca.2008.2010137
发表时间:
2009-03
影响因子:
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DOI:
10.1137/1.9781611970760
发表时间:
1999-05
期刊:
--
影响因子:
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