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Real-time entropy control of stochastic systems for an improved paper web formation

Yue, H. and Jiao, J. and Brown, E.L. and Wang, H. (2001) Real-time entropy control of stochastic systems for an improved paper web formation. Measurement and Control, 34 (5). pp. 134-139.

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Abstract

In this article, a new entropy control strategy has been implemented for the web formation at the wet-end of a pilot paper machine. The innovative idea of entropy control for stochastic systems has been proposed and proved to be applicable for this system. Through real-time tests, the effectiveness of the new modelling method and the robust controller design method has been demonstrated. The current research concerns only the influence of the polymer on formation quality, which may be insufficient for the requirements of the real paper industry. Further research should consider the retention system with fibre as well as filler. Therefore, other control inputs must be considered and the control strategy will be considerably more complex.