Application of the simple additive modeling of the first principle model inaccuracies for the offset–free process control

• Autorzy: Czeczot J. , Łaszczyk P
• Języki publikacji: EN

Abstrakty

EN

In this paper, the method for simple additive modeling of the first principle model inaccuracies for the offset-free process control is presented. Starting from transformation of the general nonlinear state model into the input affine dynamical equation describing directly the controlled variable, it is shown how to compensate for the potential modeling inaccuracies by lumping them into a single additive parameter. Its on-line estimation procedure based only on the measurement data collected from the process is very simple and effective and the estimate converges without any additional excitation of the process. The discussion on how to apply the suggested model as a basis for the chosen model-based control techniques is presented, and for the processes of the higher relative order, the practical simplification of this approach is shown. The experimental results show the practical applicability of the considered approach for the synthesis of the open loop InternalModel Controller (IMC) and of the Balance-Based Adaptive Controller (B-BAC).

Słowa kluczowe

EN

first principle process modeling; modeling inaccuracies compensation; model-based control; adaptive control

• Wydawca: Systems Research Institute, Polish Academy of Sciences
• Czasopismo: Control and Cybernetics
• Rocznik: 2014
• Tom: Vol. 43, no. 2
• Strony: 261--277
• Opis fizyczny: Bibliogr. 39 poz., rys.

Twórcy

autor

Czeczot J.

• Silesian University of Technology Faculty of Automatic Control, Electronics and Computer Science Institute of Automatic Control ul. Akademicka 16, 44-100 Gliwice, Poland

autor

Łaszczyk P

• Silesian University of Technology Faculty of Automatic Control, Electronics and Computer Science Institute of Automatic Control ul. Akademicka 16, 44-100 Gliwice, Poland

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