Verification of robust properties of digital control-loop systems

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28140%2F17%3A63516906" target="_blank" >RIV/70883521:28140/17:63516906 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.7148/2017-0348" target="_blank" >http://dx.doi.org/10.7148/2017-0348</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7148/2017-0348" target="_blank" >10.7148/2017-0348</a>

Result language
angličtina
Original language name
Verification of robust properties of digital control-loop systems
Original language description
Robustness is specific property of closed-loop systems when the designed controller guarantees control not only for one nominal controlled system but also for all predefined class of systems (perturbed models). The robust theory is mainly exploited for design of the continuous-time systems. This paper deals with an experimental simulation investigation of robust properties of digital control closed-loop systems. Minimization of the Linear Quadratic (LQ) criterion was used for the design of control algorithm. Polynomial approach is based on the structure of the controller with two degrees of freedom (2DOF). Four types of process models (stable, non-minimum phase, unstable and integrating) were used for controller design. The Nyquist plot based characteristics of the open-loop transfer function (gain margin, phase margin and modulus margin) served as robustness indicators. The influence of change of process gain was chosen as a parametric uncertainty. The experimental results demonstrated that a robustness of examined digital control closed-loop systems could be improved by addition of user-defined poles (UDP).
Czech name
—
Czech description
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Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings - 31st European Conference on Modelling and Simulation, ECMS 2017
ISBN
978-099324404-9
ISSN
—
e-ISSN
neuvedeno
Number of pages
7
Pages from-to
"348 – 354"
Publisher name
European Council for Modelling and Simulation
Place of publication
Madrid
Event location
Budapešť
Event date
May 23, 2017
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000404420000052

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