Optimal residual evaluation for nonlinear systems using post-filter and threshold
Optimal residual evaluation for nonlinear systems using post-filter and threshold
复制标题
DOI：
10.1080/00207179.2011.561502
复制
发表时间：
2011-03
影响因子：
2.1
通讯作者：
M. Abid;Wei Chen-;S. Ding;Abdul Qayyum Khan
中科院分区：
文献类型：
--
作者：
M. Abid;Wei Chen-;S. Ding;Abdul Qayyum Khan
研究了非线性系统故障检测的残差估计问题。使用因式分解的方法，后滤波器的设计和阈值计算，以实现故障可检测性和虚警的数量之间的最佳权衡。此外，它表明，所提出的后置滤波器也保证了残差信号的多目标优化。通过对三容水箱基准系统的故障检测，验证了该方法的有效性。
The problem of residual evaluation for fault detection in nonlinear systems is addressed in this article. Using the factorisation approach, a post-filter is designed and a threshold is computed to achieve an optimal trade-off between fault detectability and the number of false alarms. Furthermore, it is shown that the proposed post-filter also guarantees ℋ−/ℋ∞ multi-objective optimisation of the residual signal. The effectiveness of the proposed method is demonstrated by fault detection of the three-tank benchmark system.