Index of /skoge/publications/2002/plantwide_control_plenary_escape12

	Name	Last modified	Size	Description
	Parent Directory		-
	ESCAPE_plantwide2002.ppt	2010-07-15 10:58	454K
	README.html	2010-07-15 10:58	1.6K
	escape12knote.doc	2010-07-15 10:58	104K
	escape12knote.pdf	2010-07-15 10:58	74K
	full/	2010-07-15 10:58	-
	santa_barbara_pcc_march02/	2010-07-15 10:58	-

Author: Sigurd Skogestad

Presented at: ESCAPE 12 Symposium, Netherlands, 27-29 May 2002

Abstract.
Plantwide control deals with the structural decisions of the control system, including what to control and how to pair the variables to form control loops. Although these are very important issues, these decisions are in most cases made in an ad-hoc fashion, based on experience and engineering insight, without considering the details of each problem. This approach will fail, however, since the optimal control structure depends strongly on the economic environment, which determines which constraints are active. In the paper, a systematic procedure towards plantwide control is presented. It starts with carefully defining the operational and economic objectives, and the degrees of freedom available to fulfill them. Other issues, discussed in the paper, include inventory control, loss in performance by bottom-up design, and recycle systems and the snowball effect

In subdirectory full you find the latest version of the full (extended) paper that has been submitted for possible publication in Comp.Chem.Engng. It has the revised title "Control structure design for complete chemical plants"

In subdirectory santa_barbara_pcc_march02 you find a powerpoint presentation presented at Seborg's Process Control Consortium on 09 March 2002.