Fault Detection 2010
DOI: 10.5772/9086
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Sensor Fault Detection and Isolation by Robust Principal Component Analysis

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Cited by 8 publications
(4 citation statements)
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References 34 publications
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“…Once the PCA model identification is achieved, it is necessary to proceed to the fault detection step. Several indices are used to represent any variations in the data and thereby to detect faults either in the principal subspace, in the residual one, or in both spaces [13,18,19].…”
Section: Fault Detection and Isolationmentioning
confidence: 99%
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“…Once the PCA model identification is achieved, it is necessary to proceed to the fault detection step. Several indices are used to represent any variations in the data and thereby to detect faults either in the principal subspace, in the residual one, or in both spaces [13,18,19].…”
Section: Fault Detection and Isolationmentioning
confidence: 99%
“…After achieving the fault detection step, it is necessary to identify and isolate the faulty variables. Among various strategies of fault localization, the variable reconstruction approach is adopted in this application [13,19,21]. This method assumes that each variable is faulty and suggests to reconstruct it using the PCA model from the remaining variables [15,22].…”
Section: Fault Isolationmentioning
confidence: 99%
“…Various approaches to robust PCA have been proposed over the past few decades. They can be classified into six groups: (1) taking robust covariance estimators instead of the empirical covariance matrix, , (2) projection pursuit techniques, , (3) a combination of the ideas of groups 1 and 2, (4) robust subspace estimation, (5) elliptical and spherical PCA, and (6) low-rank matrix approximation . Although robust PCA methods have been widely investigated, there are few applications of robust PCA to process monitoring. , In practice, data collected in industrial processes frequently contain outliers. The faulty data, low-quality data, and data obtained during irregular operating phases (e.g., startup or shutdown periods) can all be viewed as outliers. , Therefore, any data-driven process monitoring scheme should take into account the possible presence of outliers in the training data.…”
Section: Introductionmentioning
confidence: 99%
“…Although robust PCA methods have been widely investigated, there are few applications of robust PCA to process monitoring. , In practice, data collected in industrial processes frequently contain outliers. The faulty data, low-quality data, and data obtained during irregular operating phases (e.g., startup or shutdown periods) can all be viewed as outliers. , Therefore, any data-driven process monitoring scheme should take into account the possible presence of outliers in the training data. For the process monitoring, outliers affect not only the monitoring model but also the fault detection indices and their control limits.…”
Section: Introductionmentioning
confidence: 99%