International Journal of Computer Applications |
Foundation of Computer Science (FCS), NY, USA |
Volume 64 - Number 5 |
Year of Publication: 2013 |
Authors: Seshu Kumar Damarla, Madhusree Kundu |
10.5120/10628-5356 |
Seshu Kumar Damarla, Madhusree Kundu . Decoupling Multivariable Processes using Partial Least Squares for Decentralized Control. International Journal of Computer Applications. 64, 5 ( February 2013), 5-12. DOI=10.5120/10628-5356
Multivariable control systems suffer very much from unwanted interactions among control loops. Change in setpoint of one variable may cause other variables to deviate from their respective steady states because of couplings between unpaired variables. Due to unreliability problems, conventional decouplers are not appropriate for higher order processes. This paper proposes Partial Least Squares (PLS), multivariate statistical process control technique (MVSPC), based decoupling strategy to attain satisfactory performance and consistent product quality in spite of disturbances. The proposed scheme was applied on conventional and heat integrated distillation processes. The results have shown the reliability and robustness of Partial Least Squares based decouplers over conventional decouplers.