TY - GEN
T1 - Enhanced dynamic data-driven fault detection approach: Application to a two-tank heater system
AU - Harrou, Fouzi
AU - Madakyaru, Muddu
AU - Sun, Ying
AU - Kammammettu, Sanjula
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): OSR-2015-CRG4-2582
Acknowledgements: This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No: OSR-2015-CRG4-2582.
PY - 2018/2/12
Y1 - 2018/2/12
N2 - Principal components analysis (PCA) has been intensively studied and used in monitoring industrial systems. However, data generated from chemical processes are usually correlated in time due to process dynamics, which makes the fault detection based on PCA approach a challenging task. Accounting for the dynamic nature of data can also reflect the performance of the designed fault detection approaches. In PCA-based methods, this dynamic characteristic of the data can be accounted for by using dynamic PCA (DPCA), in which lagged variables are used in the PCA model to capture the time evolution of the process. This paper presents a new approach that combines the DPCA to account for autocorrelation in data and generalized likelihood ratio (GLR) test to detect faults. A DPCA model is applied to perform dimension reduction while appropriately considering the temporal relationships in the data. Specifically, the proposed approach uses the DPCA to generate residuals, and then apply GLR test to reveal any abnormality. The performances of the proposed method are evaluated through a continuous stirred tank heater system.
AB - Principal components analysis (PCA) has been intensively studied and used in monitoring industrial systems. However, data generated from chemical processes are usually correlated in time due to process dynamics, which makes the fault detection based on PCA approach a challenging task. Accounting for the dynamic nature of data can also reflect the performance of the designed fault detection approaches. In PCA-based methods, this dynamic characteristic of the data can be accounted for by using dynamic PCA (DPCA), in which lagged variables are used in the PCA model to capture the time evolution of the process. This paper presents a new approach that combines the DPCA to account for autocorrelation in data and generalized likelihood ratio (GLR) test to detect faults. A DPCA model is applied to perform dimension reduction while appropriately considering the temporal relationships in the data. Specifically, the proposed approach uses the DPCA to generate residuals, and then apply GLR test to reveal any abnormality. The performances of the proposed method are evaluated through a continuous stirred tank heater system.
UR - http://hdl.handle.net/10754/627447
UR - http://ieeexplore.ieee.org/document/8285166/
UR - http://www.scopus.com/inward/record.url?scp=85046115313&partnerID=8YFLogxK
U2 - 10.1109/ssci.2017.8285166
DO - 10.1109/ssci.2017.8285166
M3 - Conference contribution
AN - SCOPUS:85046115313
SN - 9781538627266
SP - 1
EP - 6
BT - 2017 IEEE Symposium Series on Computational Intelligence (SSCI)
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -