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Information Technologies and Control

The Journal of Institute of Information and Communication Technologies of Bulgarian Academy of Sciences

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Model Predictive Control of a pH Maintaining System

A. Grancharova
  • Corresponding author
  • Institute of System Engineering and Robotics, Bulgarian Academy of Sciences Acad. G. Bonchev St., Bl. 2, P.O.Box 79, 1113 Sofia
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/ L. Kostov
  • Institute of System Engineering and Robotics, Bulgarian Academy of Sciences Acad. G. Bonchev St., Bl. 2, P.O.Box 79, 1113 Sofia
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Published Online: 2014-06-17 | DOI: https://doi.org/10.2478/itc-2013-0003

Abstract

In this paper the problem of optimal regulation of a pH maintaining system is considered, where the outputs are the pH value and the liquid level in the system and the control inputs are the flow rates of the base input flow and the output flow. The optimal regulation problem is formulated as a nonlinear model predictive control problem in the presence of constraints. Two cases are considered: 1) presence of box constraints only on the control inputs and 2) considering also constraints on the rate of change of the inputs.

Keywords: Model predictive control; nonlinear systems; constraints; pH maintaining system

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About the article

Received: 2013-03-12

Published Online: 2014-06-17

Published in Print: 2013-03-01


Citation Information: Information Technologies and Control, Volume 11, Issue 1, Pages 14–20, ISSN (Online) 1312-2622, DOI: https://doi.org/10.2478/itc-2013-0003.

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© 2014. This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. BY-NC-ND 3.0

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