Title :
Multivariable estimation of a web winding system
Author :
Vuelvas, José ; Urrego, Jonatan ; Ruiz, Fredy
Author_Institution :
Electron. Dept., Pontificia Univ. Javeriana, Bogotá, Colombia
Abstract :
This article presents the identification of a web winding system and the estimation of its reel radius as time-varying parameter. This system is non-linear and time-varying, then, a set of Linear, Time Invariant models are estimated for local operation regions. The reel radius estimator is a direct virtual sensor (DVS) directly designed from experimental data. The estimated models are compared to a single model, identified for the complete operation range and better results are obtained with the local models on fresh data not used in the identification phase. The DVS is able to estimate the reel radius from voltage, speed and tension measurements, with good precision.
Keywords :
linear systems; multivariable control systems; nonlinear control systems; time-varying systems; velocity measurement; voltage measurement; winding (process); direct virtual sensor; linear model; local operation region; multivariable estimation; nonlinear system; reel radius estimator; speed measurement; tension measurement; time invariant model; time-varying parameter; voltage measurement; web winding system; Data models; Estimation; MIMO; Materials; Time varying systems; Uncertainty; Windings;
Conference_Titel :
Robotics Symposium, 2011 IEEE IX Latin American and IEEE Colombian Conference on Automatic Control and Industry Applications (LARC)
Conference_Location :
Bogota
Print_ISBN :
978-1-4577-1689-8
DOI :
10.1109/LARC.2011.6086845
