Fault detection and diagnosis of networked control system
Fault detection and diagnosis of networked control system
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DOI：
10.1080/00207720802017834
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发表时间：
2008-10
影响因子：
4.3
通讯作者：
Ying-wei Zhang;Yu Chen;J. Sheng;T. Hesketh
中科院分区：
文献类型：
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作者：
Ying-wei Zhang;Yu Chen;J. Sheng;T. Hesketh
考虑具有长延迟的多输入网络控制系统（NCS）设备。讨论了干扰对NCS的影响，并在为系统设计具有γ稳定裕度(0 < γ < 1)的降阶状态观测器时，采用迭代方法补偿延迟。通过计算实际系统的输出与降阶状态观测器的输出之间的残差，给出了NCS的故障检测和诊断方案。一个示例说明了该方法的有效性。
Consider the plant of Multiple-input Networked Control System (NCS) with long reduced delay. The effect of the disturbances to the NCS is discussed and the iterative method is used to compensate the delay when design a reduced-order state observer with a γ-stability margin (0 < γ < 1) for system. By computing the residual between the output of the practical system and the output of the reduced-order state observer, the fault detection and diagnosis scheme of NCS is given. An illustrative example shows the effectiveness of the method.