Advantages of OKID-ERA Identification in Control Systems. An Application to the Tennessee Eastman Plant

TL;DR

This paper demonstrates that OKID-ERA identification provides notable advantages over traditional linearization methods for modeling the Tennessee Eastman plant, a benchmark in control systems, facilitating better control design.

Contribution

The paper introduces the application of OKID-ERA identification to a complex benchmark plant, highlighting its benefits over conventional linearization techniques.

Findings

OKID-ERA yields better numerical conditioning.

Output response errors are reduced with OKID-ERA.

Zero-pole mappings show clear advantages of OKID-ERA.

Abstract

Data-driven OKID-ERA identification of the open-loop Tennessee Eastman plant is performed to obtain a linear model for control design purposes. Analysis such as numerical conditioning, output response errors, and zero-pole mappings highlight some definite advantages of the OKID-ERA approach when compared with models derived from typical linearization techniques. The plant under study is a recognized benchmark in the field of plant-wide control systems.