Verification of robust properties of digital control-loop systems

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Verification of robust properties of digital control-loop systems

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

Verification of robust properties of digital control-loop systems

Popis výsledku anglicky

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).

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings - 31st European Conference on Modelling and Simulation, ECMS 2017

ISBN

978-099324404-9

ISSN

—

e-ISSN

neuvedeno

Počet stran výsledku

7

Strana od-do

"348 – 354"

Název nakladatele

European Council for Modelling and Simulation

Místo vydání

Madrid

Místo konání akce

Budapešť

Datum konání akce

23. 5. 2017

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000404420000052