Abstract
In data-based monitoring field, the nonlinear iterative partial least squares procedure has been a useful tool for process data modeling, which is also the foundation of projection to latent structures (PLS) models. To describe the dynamic processes properly, a dynamic PLS algorithm is proposed in this paper for dynamic process modeling, which captures the dynamic correlation between the measurement block and quality data block. For the purpose of process monitoring, a dynamic total PLS (T-PLS) model is presented to decompose the measurement block into four subspaces. The new model is the dynamic extension of the T-PLS model, which is efficient for detecting quality-related abnormal situation. Several examples are given to show the effectiveness of dynamic T-PLS models and the corresponding fault detection methods.
Original language | English |
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Article number | 6080734 |
Pages (from-to) | 2262 - 2271 |
Number of pages | 10 |
Journal | IEEE Transactions on Neural Networks |
Volume | 22 |
Issue number | 12 |
Early online date | 14 Nov 2011 |
DOIs | |
Publication status | Published - Dec 2011 |
Externally published | Yes |
Keywords
- Data-based monitoring
- dynamic total projection to latent structures
- multivariate dynamic processes
- quality-related monitoring