ZHU Honglin, WANG Fan, SHI Hongbo, et al. Fault detection method based on non-negative matrix factorization for multimode processes[J]. CIESC Journal, 2016, (5): 1973-1981.
ZHU Honglin, WANG Fan, SHI Hongbo, et al. Fault detection method based on non-negative matrix factorization for multimode processes[J]. CIESC Journal, 2016, (5): 1973-1981.DOI: 10.11949/j.issn.0438-1157.20151392.
The traditional multivariate statistical fault detection methods are designed for single operating conditions and may produce erroneous conclusions if they are used for the multi-mode process monitoring. A novel multi-mode process monitoring approach based on non-negative matrix factorization (NMF) is proposed in this paper. First
the training set of data is clustered by the standard NMF algorithm and the multi-mode data are divided into each mode. Then
the sparseness orthogonal NMF (SONMF) algorithm is used to model every mode and the monitoring statistics are constructed to perform fault detection. The proposed method is applied to a numerical example and the TE process. The simulation results show that this method can effectively detect multi-mode process failure.