TY - GEN
T1 - Detection of model parameter mismatch using simplified partial correlation analysis for closed-loop system
AU - Kamal Iqbal, Nur Hidayah
AU - Yusoff, Nooryusmiza
AU - Tufa, Lemma Dendena
PY - 2014/9
Y1 - 2014/9
N2 - Partial correlation analysis is used in detecting the model-plant mismatch as it will give accurate location of mismatched submodel. In this work of model parameter mismatch detection in closed-loop system, a simplified method of partial correlation analysis is proposed. In this method, the identification step for input sensitivities relating setpoints and manipulated variables, Sru, is omitted due the ability of ARX model structure to capture the dynamic of the input-output data even though in the presence of unmeasured disturbance in closed-loop system. The ARX model structure is implemented in decorrelating the observed data from the correlated inputs. By using the ARX model, the mismatch is detected at the precise location compared to the detection using FIR decorrelation model.
AB - Partial correlation analysis is used in detecting the model-plant mismatch as it will give accurate location of mismatched submodel. In this work of model parameter mismatch detection in closed-loop system, a simplified method of partial correlation analysis is proposed. In this method, the identification step for input sensitivities relating setpoints and manipulated variables, Sru, is omitted due the ability of ARX model structure to capture the dynamic of the input-output data even though in the presence of unmeasured disturbance in closed-loop system. The ARX model structure is implemented in decorrelating the observed data from the correlated inputs. By using the ARX model, the mismatch is detected at the precise location compared to the detection using FIR decorrelation model.
KW - ARX structure
KW - FIR structure
KW - Model parameter mismatch
KW - Model predictive control
KW - Partial correlation analysis
KW - Wood and Berry distillation column
UR - http://www.scopus.com/inward/record.url?scp=84914099341&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.625.398
DO - 10.4028/www.scientific.net/AMM.625.398
M3 - Conference contribution
AN - SCOPUS:84914099341
T3 - Applied Mechanics and Materials
SP - 398
EP - 401
BT - Process and Advanced Materials Engineering
A2 - Ahmed, Iqbal
PB - Trans Tech Publications
T2 - 3rd International Conference on Process Engineering and Advanced Materials 2014
Y2 - 3 June 2014 through 5 June 2014
ER -