@inproceedings{6446cc9b70894d30a63b9c096e317bba,
title = "Composite Nonlinear Feedback Control of a Chemical Reactor",
abstract = "This paper studies the application of composite nonlinear feedback (CNF) control for a continuous time stirred tank reactor. Inside the reactor, an exothermic chemical reaction occurs, which requires cooling when concentration is commanded from low to high conversion rate to prevent a thermal runaway. A full-state CNF controller is designed for adjusting the temperature of the cooling jacket using concentration and temperature measurements. A continuous time gain-scheduled cascade controller, as well as a model predictive controller (MPC) is also fabricated for comparison. The gain-scheduled cascade controller has a proportional-integral (PI) controller as a primary loop controller, and a P-controller as a secondary loop controller. The simulation results show that the CNF controller is able to offer the best overall tracking performance as measured by the integral-of-absolute-error (IAE) criterion. In addition, the CNF controller does not need gain-scheduling for tuning purposes; the CNF controller is capable of changing its tuning as a function of control error only.",
keywords = "exothermic reaction, nonlinear control, nonlinear dynamics, cascade control",
author = "Veli-Pekka Pyrh{\"o}nen and Hannu Koivisto",
year = "2015",
month = mar,
day = "18",
language = "English",
series = "SAS julkaisusarja",
publisher = "Suomen Automaatioseura ry",
booktitle = "Proceedings of AutomaatioXXI, The Industrial Revolution of Internet – From Intelligent Devices to Networked Intelligence",
note = "Automaatioseminaari ; Conference date: 01-01-1980",
}