New Model-Based Machine Direction Control Algorithm, 1993 Process Control, Electrical & Information Conference Proceedings
Tom Brown
Dan Millard
With the acceptance of single window control from the DCS of many different subsystems such as paper machine drives and gauging systems, the paper industry has benefited from more uniform operations and more efficient information handling. Also, increased automation between the various subsystems has been obtained. As these benefits have been obtained, the pulp and paper industry continues to see the advantages of placing more supervisory controls in the DCS.
The next step in this process of integrating supervisory controls is machine direction (MD) controls. MD controls have long been accepted by the industry as a requirement for high quality product. This paper describes a new approach to MD controls using a multivariable predictive control algorithm. The controls are completely resident in the DCS. The operations of the MD controls are described from the engineers and operators perspective.
New Model-Based Machine Direction Control Algorithm, 1993 Process Control, Electrical & Information