Article | Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 | Universal Controllers for Architecture Simulation Linköping University Electronic Press Conference Proceedings
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Title:
Universal Controllers for Architecture Simulation
Author:
Alexander Pollok: Institute of System Dynamics and Control, DLR German Aerospace Center, Germany Francesco Casella: Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Italy
DOI:
10.3384/ecp18148223
Download:
Full text (pdf)
Year:
2018
Conference:
Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018
Issue:
148
Article no.:
031
Pages:
223-229
No. of pages:
7
Publication type:
Abstract and Fulltext
Published:
2019-02-21
ISBN:
978-91-7685-266-8
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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For optimization studies of dynamical systems, it is common practice to model and tune local controllers for miscellaneous subsystems. For instance, a model of a chemical plant may contain a valve motor model, and a model of a PID controller may be included to control the motor. The associated controller tuning effort is ultimately wasted. The actual controller will be retuned anyway after finalization of the system design, or will be structurally different.

For this reason, control algorithms are needed that just provide the functionality of the actual control algorithm that will be designed in a later phase of the system design. These temporary algorithms need to have low tuning requirements, and it must be possible for non-controlspecialist to generate them. On the other hand, they only need to function inside a simulation environment.

Several mainstream control approaches are reviewed, and boundary layer sliding mode control is proposed as a suitable approach for this kind of task. This class of controllers can be used without any tuning effort, and is able to compete with tuned PID-controllers in terms of tracking performance. An end-user friendly implementation of a universal controller in the equation-based and object-oriented modelling language Modelica is presented. Several examples are shown to demonstrate the performance of the proposed approach.



Keywords: Modelling, Modelica, Sliding Mode, Modelling aids, Optimization, Local Controller

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018

Author:
Alexander Pollok, Francesco Casella
Title:
Universal Controllers for Architecture Simulation
DOI:
http://dx.doi.org/10.3384/ecp18148223
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Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018

Author:
Alexander Pollok, Francesco Casella
Title:
Universal Controllers for Architecture Simulation
DOI:
https://doi.org10.3384/ecp18148223
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