Title :
Relay based identification of TITO process
Author :
Nema, Swapnil ; Padhy, P.K.
Abstract :
Loop interaction is an important issue in the identification problem of multi input multi output (MIMO) processes. This paper presents a new approach to identify two input two output (TITO) processes using Relay based identification technique where interaction between the loops can be reduced to a acceptable limit. In the proposed structure two relay are inserted in the feedback loops in parallel with two proportional integral derivative (PID) controllers and operate one by one. A pair of first order transfer function models for the TITO process dynamics is identified using the proposed identification method in presence of strong loop interaction. The interaction between the loops is measured using Integral absolute error (IAE). The method is verified through simulation for two different TITO process.
Keywords :
MIMO systems; feedback; identification; integral equations; three-term control; transfer functions; IAE; MIMO process; PID controller; TITO process dynamics; feedback loop; identification problem; integral absolute error; loop interaction; multiinput multioutput process; pair of first order transfer function model; proportional integral derivative controller; relay based identification; two input two output process; Identification; Integral absolute error (IAE); Relay feedback; Two-input two-output (TITO) process;
Conference_Titel :
Engineering (NUiCONE), 2012 Nirma University International Conference on
Conference_Location :
Ahmedabad
Print_ISBN :
978-1-4673-1720-7
DOI :
10.1109/NUICONE.2012.6493288