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Estimating output variance in closed loop systems

Lookup NU author(s): Dr Ming Tham

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Abstract

This paper attempts to address a common difficulty encountered when trying to justify a process control revamp or upgrading project - the ability to quantify potential savings/profits. A relatively simple procedure that is applicable to both continuous and digital controllers is described. Given models of the process and the controller, knowledge of the disturbance frequencies and their variances, the method is able to predict accurately the variance of the controlled output of linear control systems. Copyright ©2007 The Berkeley Electronic Press. All rights reserved.

Publication metadata

Author(s): Tham MT, Jones RW, Al-Hinai I

Publication type: Article

Publication status: Published

Journal: Chemical Product and Process Modeling

Year: 2007

Volume: 2

Issue: 1

Pages: -

ISSN (print): 1934-2659

ISSN (electronic):

Publisher: Berkeley Electronic Press

URL: http://dx.doi.org/10.2202/1934-2659.1026

DOI: 10.2202/1934-2659.1026

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