Keywords

Advanced process control, Differential algebraic equations, Model predictive control, Dynamic parameter estimation, Data reconciliation, Dynamic optimization

Abstract

This paper describes nonlinear methods in model building, dynamic data reconciliation, and dynamic optimization that are inspired by researchers and motivated by industrial applications. A new formulation of the ℓ1-norm objective with a dead-band for estimation and control is presented. The dead-band in the objective is desirable for noise rejection, minimizing unnecessary parameter adjustments and movement of manipulated variables. As a motivating example, a small and well-known nonlinear multivariable level control problem is detailed that has a number of common characteristics to larger controllers seen in practice. The methods are also demonstrated on larger problems to reveal algorithmic scaling with sparse methods. The implementation details reveal capabilities of employing nonlinear methods in dynamic applications with example code in both Matlab and Python programming languages.

Original Publication Citation

Hedengren, John D., et al. "Nonlinear modeling, estimation and predictive control in APMonitor." Computers & Chemical Engineering 70 (2014): 133-148.

Document Type

Peer-Reviewed Article

Publication Date

2014-11-05

Permanent URL

http://hdl.lib.byu.edu/1877/3607

Publisher

Elsevier

Language

English

College

Ira A. Fulton College of Engineering and Technology

Department

Chemical Engineering

University Standing at Time of Publication

Assistant Professor

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