Next Article in Journal
The Influence of Viscosity on the Static and Dynamic Properties of PS-PEO Covered Emulsion Drops
Next Article in Special Issue
Online Optimization Applied to a Shockless Explosion Combustor
Previous Article in Journal
Extending Applications of High-Pressure Homogenization by Using Simultaneous Emulsification and Mixing (SEM)—An Overview
Previous Article in Special Issue
Performance Evaluation of Real Industrial RTO Systems
Article Menu

Export Article

Open AccessArticle
Processes 2016, 4(4), 45;

A Study of Explorative Moves during Modifier Adaptation with Quadratic Approximation

Biochemical and Chemical Engineering Department, TU Dortmund, Emil-Figge-Str. 70, 44221 Dortmund, Germany
Author to whom correspondence should be addressed.
Academic Editor: Dominique Bonvin
Received: 31 October 2016 / Revised: 21 November 2016 / Accepted: 22 November 2016 / Published: 26 November 2016
(This article belongs to the Special Issue Real-Time Optimization)
View Full-Text   |   Download PDF [1676 KB, uploaded 26 November 2016]   |  


Modifier adaptation with quadratic approximation (in short MAWQA) can adapt the operating condition of a process to its economic optimum by combining the use of a theoretical process model and of the collected data during process operation. The efficiency of the MAWQA algorithm can be attributed to a well-designed mechanism which ensures the improvement of the economic performance by taking necessary explorative moves. This paper gives a detailed study of the mechanism of performing explorative moves during modifier adaptation with quadratic approximation. The necessity of the explorative moves is theoretically analyzed. Simulation results for the optimization of a hydroformylation process are used to illustrate the efficiency of the MAWQA algorithm over the finite difference based modifier adaptation algorithm. View Full-Text
Keywords: real-time optimization; modifier adaptation; quadratic approximation real-time optimization; modifier adaptation; quadratic approximation

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Gao, W.; Hernández, R.; Engell, S. A Study of Explorative Moves during Modifier Adaptation with Quadratic Approximation. Processes 2016, 4, 45.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Processes EISSN 2227-9717 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top