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Efficient hybrid simulation of autotuning PI controllers

Alberto Leva
Dipartimento di Elettronica e Informazione, Politecnico di Milano, Italy

Marco Bonvini
Dipartimento di Elettronica e Informazione, Politecnico di Milano, Italy

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp1106356

Ingår i: Proceedings of the 8th International Modelica Conference; March 20th-22nd; Technical Univeristy; Dresden; Germany

Linköping Electronic Conference Proceedings 63:8, s. 56-63

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Publicerad: 2011-06-30

ISBN: 978-91-7393-096-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)

Abstract

Autotuning methods are typically conceived as procedures; thus need simulating as digital blocks. However; when no autotuning is in progress; it is far more efficient to represent the tuned controller as a continuous-time system; to exploit variable-step integration. This manuscript presents the first nucleus of a Modelica library of autotuning controllers; where the problem just mentioned is tackled explicitly. The focus is here restricted to the PI structure; but the presented ideas are general.

Nyckelord

Autotuning; PI control; hybrid systems’ simulation

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