Title :
The design of robust cross-directional control systems for paper making
Author :
Duncan, Stephen R.
Author_Institution :
Control Syst. Centre, Univ. of Manchester Inst. of Sci. & Technol., UK
Abstract :
The paper shows how the multivariable problem of designing the dynamics of a cross-directional control system for a paper machine, can be reduced to choosing a single scalar dynamic term that will control a set of SISO loops. Uncertainties in the multivariable model of the plant can be expressed in terms of their effect on the SISO leaps, leading to a procedure for designing a robust control system. Robustness is achieved by adjusting a scalar parameter in a precompensator matrix, which has the effect of applying control actions to the actuators in the vicinity of an error, rather than changing the settings of all actuators
Keywords :
Nyquist diagrams; control system synthesis; dynamics; multivariable control systems; paper industry; process control; robust control; Nyquist contour; SISO loops; actuators; cross-directional control systems; dynamics; multivariable model; paper machine; paper making; precompensator matrix; robust control; Actuators; Control system synthesis; Control systems; Paper making; Plastic films; Robust control; Steady-state; Symmetric matrices; Transfer functions; Uncertainty;
Conference_Titel :
American Control Conference, Proceedings of the 1995
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2445-5
DOI :
10.1109/ACC.1995.531195
