Process fault detection and diagnosis of fed-batch plant using multiway principal component analysis

Dey, Rahul (2016) Process fault detection and diagnosis of fed-batch plant using multiway principal component analysis. Masters thesis, Indian Institute of Technology Hyderabad.

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Abstract

With the advent of new technologies, process plants whether it be continuous or batch process plants are getting complex. And modelling them mathematical is a herculean task. Model based fault detection and diagnosis mainly depend on explicit mathematical model of process plant, which is the biggest problem with the model based approach. Whereas with process history based there is no need of explicit model of the plant. It only depends on the data of previous runs. With the advancement in electronic instrumentation, we can get large amount of data electronically. But the crude data we get is not useful for taking any decision. So we need develop techniques which can convey us the information about the ongoing process. So we take the help of multivariate statistics such as Principal Component Analysis(PCA) or Partial Least Squares(PLS). These methods exploits the facts such as the process data are highly correlated and have large dimensions, due to which we can compress them to lower dimension space. By examining the data in the lower dimensional space we can monitor the plant and can detect fault.

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IITH Creators:
IITH CreatorsORCiD
Item Type: Thesis (Masters)
Uncontrolled Keywords: PCA, MPCA, Enhance MPCA, Fault detection, ABE batch process, Q-statistics, SVD, TD611
Subjects: Others > Electricity
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 05 Aug 2016 07:07
Last Modified: 05 Aug 2016 07:07
URI: http://raiith.iith.ac.in/id/eprint/2626
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