1. Robust Sheet Tension Estimation for Paper Winders.
- Author
-
Valenzuela, M. Aníbal, Carrasco, Rodrigo, and Sbarbaro, Daniel
- Subjects
ROBUST control ,ESTIMATION theory ,WINDING machines ,ALGORITHMS ,ELECTRIC windings ,DETECTORS - Abstract
This paper proposes and evaluates two robust sheet tension estimation algorithms based on unwind and rewind variables, respectively. The proper sheet tension estimation is guaranteed by a continuous monitoring of the differences between the actual estimated values and the values predicted from the last calibration of the estimation parameters. The evaluation was performed with the aid of a developed winder emulator that allowed the offline testing in a real-time field environment, including the initial setting of the estimation constants, and evaluation of both four- and six-shipping-roll cycles. The sheet tension estimation results confirm the precise and stable operation of the proposed robust estimation algorithms, in tests conducted with signals from a winder model, and with tests involving actual field signals from an operational winder. [ABSTRACT FROM AUTHOR]
- Published
- 2008
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