Combat Process Disturbances and Interactions: New Tools and a Practical Guide to Implementing Feedforward and Decoupling Control, 2011 PaperCon Conference

Please Note: This document will be available in PDF format in the "My Electronic Documents" link on the home page once your order has been completed. Please make sure you have the latest version of Acrobat Reader. Click on the Acrobat Reader icon to check for the latest version, it’s FREE. To print a hardcopy of a PDF file correctly you must have a postscript printer. If you are not sure if your printer is a postscript printer please refer to your owner’s manual.

Purchase of electronic (downloadable) documents made at www.tappi.org by credit cards, followed by instant download CANNOT be cancelled. We do not offer refunds on electronic download documents.

PID loop interactions and process disturbances are leading sources of process variability and instability in all industrial settings. The advanced methods to deal with these (decoupling and feedforward control) have existed for decades, yet are seldom used or used incorrectly. This is because these techniques rely on 'textbook' methods to obtain the needed process models. This paper will show you how to employ new tools to easily obtain the effects of interaction and disturbances on your process (the models) and how to use these to reduce or eliminate loop interactions and the effects of disturbances. The tools can be used to perform tests while the process is running normally. A highly interactive process common to industry with a continuous disturbance will be presented to illustrate the solution with before and after results shown.