Reset control of an industrial in-line pH process

Authors:
Joaquín Carrasco;Alfonso Baños;Aurelio Arenas
Affiliations:
Dpt. Informática y Sistemas, University of Murcia, Murcia, Spain;Dpt. Informática y Sistemas, University of Murcia, Murcia, Spain;Dpt. Física, University of Murcia, Murcia, Spain
Venue:
ETFA'09 Proceedings of the 14th IEEE international conference on Emerging technologies & factory automation
Year:
2009

Citing 3
Cited 0

Brief paper: Stability analysis and design of reset systems: Theory and an application

Automatica (Journal of IFAC)
Modeling and control of a pilot pH plant using genetic algorithm

Engineering Applications of Artificial Intelligence
Fundamental properties of reset control systems

Automatica (Journal of IFAC)

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Abstract

This work presents a reset/hybrid control application of an in-line pH process. The nonlinear process dynamic is linearized around different operation points, and as a result a Second Order Plus Dead Time (SOPDT) plant with uncertain gain is obtained for control purposes. A standard PI compensator and a reset compensator are designed and tuned. The main result of this work will be to compare the performance of both compensators in basis to practical experiments. As result, the reset compensator is able to overcome fundamental limitations of LTI control with a faster tracking response and improving disturbance rejection.