Browsing NTNU Open by Author "Sivalingam, Selvanathan"
Now showing items 1-6 of 6
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A Delay Vector Variance based Approach for Detecting and Isolating the Non-linearity Induced Oscillations in Control Loops
Aftab, Muhammad Faisal; Hovd, Morten; Sivalingam, Selvanathan (Journal article, 2017)Non-linear time series analysis based methods are a popular choice for industrial control loop data analysis. In this paper a delay vector variance (DVV) based approach is presented to analyze the source of oscillations ... -
An Adaptive Non-Linearity Detection Algorithm for Process Control Loops
Aftab, Muhammad Faisal; Hovd, Morten; Huang, Norden E; Sivalingam, Selvanathan (Journal article; Peer reviewed, 2016) -
Convergent cross mapping (CCM) based approach for isolating the source of plant-wide disturbances
Aftab, Muhammad Faisal; Hovd, Morten; Sivalingam, Selvanathan (Chapter, 2017)Disturbances originating in one control loop of a large industrial plant can propagate far from the source, giving rise to plant-wide oscillations. The underlying interactions among the different control loops make it hard ... -
Detecting non-linearity induced oscillations via the dyadic filter bank property of multivariate empirical mode decomposition
Aftab, Muhammad Faisal; Hovd, Morten; Sivalingam, Selvanathan (Journal article, 2017)Non-linearity induced oscillations in control loops are characterized by the presence of higher order harmonics. In this paper the dyadic filter bank property of the multivariate empirical mode decomposition (MEMD) is ... -
Improved oscillation detection via noise-assisted data analysis
Aftab, Muhammad Faisal; Hovd, Morten; Sivalingam, Selvanathan (Journal article; Peer reviewed, 2018)Oscillation detection is usually a precursor to more advanced performance monitoring steps such as plant wide oscillation detection and root cause detection. Therefore any false or missed detection can have serious ... -
Plant-wide oscillation detection using multivariate empirical mode decomposition
Aftab, Muhammad Faisal; Hovd, Morten; Sivalingam, Selvanathan (Journal article; Peer reviewed, 2018)Plant-wide oscillation detection is an important task in the maintenance of large-scale industrial control systems, owing to the fact that in an interactive multi-loop environment oscillation generated in one loop may ...