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Chemical Product and Process Modeling

Ed. by Sotudeh-Gharebagh, Rhamat / Mostoufi, Navid / Chaouki, Jamal

4 Issues per year

CiteScore 2016: 0.94

SCImago Journal Rank (SJR) 2016: 0.270
Source Normalized Impact per Paper (SNIP) 2016: 0.928

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Estimating Output Variance in Closed Loop Systems

Ming T. Tham / Richard W. Jones
  • Mads Clausen Institute for Product Innovation, Southern Denmark University, Sonderborg, Denmark
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/ Ibrahim Al-Hinai
Published Online: 2007-03-07 | DOI: https://doi.org/10.2202/1934-2659.1026

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.

Keywords: output variance; control benefits assessment; control performance

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Published Online: 2007-03-07

Citation Information: Chemical Product and Process Modeling, ISSN (Online) 1934-2659, DOI: https://doi.org/10.2202/1934-2659.1026.

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©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston. Copyright Clearance Center

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