| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Show document Help

Title:Design of Lyapunov based nonlinear velocity control of electrohydraulic velocity servo systems
Authors:ID Detiček, Edvard (Author)
ID Gubeljak, Nenad (Author)
ID Kastrevc, Mitja (Author)
Files:.pdf Tehnicki_vjesnik_2017_Deticek,_Gubeljak,_Kastrevc_Design_of_Lyapunov_based_nonlinear_velocity_control_of_electrohydraulic_velocity_servo.pdf (1,52 MB)
MD5: 4404F79C96EA6FE1D0BF7B7926A11B43
PID: 20.500.12556/dkum/49b0759b-f395-4ccb-9bce-948e9e8fed48
 
URL http://hrcak.srce.hr/183033
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Development of a hydraulically driven process of steel centrifugal die casting industry requires accurate response of position in time. In the frame of preliminary investigations the analysis and control of electrohydraulic velocity servo system is considered in the presence of flow nonlinearities and internal friction. The nonlinear and uncertainty characteristics make the conventional controller not yield to the system high requirements. Two different nonlinear design procedures are employed: feedback linearization and backstepping. It is shown that both these techniques can be successfully used to stabilize any chosen operating point of the system. Additionally, invaluable new insights are gained about the dynamics of the system under consideration. This illustrates that the true potential of constructive nonlinear design lies far beyond the mere task of achieving a desired control objective. All derived results are validated by computer simulation of the nonlinear mathematical model of the system.
Keywords:computer simulation, electro-hydraulic velocity servo system, integrator backstepping, Lyapunov methods, velocity control
Publication status:Published
Publication version:Version of Record
Year of publishing:2017
Number of pages:str. 745-751
Numbering:Letn. 24, št. 3
PID:20.500.12556/DKUM-66805 New window
ISSN:1330-3651
UDC:621.22:681.5
ISSN on article:1330-3651
COBISS.SI-ID:20637974 New window
DOI:10.17559/TV-20160930073953 New window
NUK URN:URN:SI:UM:DK:M7YE1GJ6
Publication date in DKUM:11.07.2017
Views:1522
Downloads:393
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
Copy citation
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share


Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a journal

Title:Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku
Shortened title:Teh. vjesn. - Stroj. fak.
Publisher:Strojarski fakultet, Elektrotehnički fakultet, Građevinski fakultet
ISSN:1330-3651
COBISS.SI-ID:15346181 New window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:11.07.2017

Secondary language

Language:Croatian
Title:Dizajniranje nelinearne regulacije brzine elektrohidrauličkog servo sustava metodom Lyapunova
Abstract:Razvoj regulacijskog sustava hidrauličkog pogona u procesu centrifugalnog lijevanja čelika zahtijeva točan pozicijski i vremenski odaziv sustava, kako bi se što preciznije izlio lijev. U okviru preliminarnih istraživanja razmatrana je dinamička analiza i regulacija elektrohidrauličkog brzinskog servosustava, kod koje nastupaju nelinearnosti prouzrokovane hidrauličkim tokom i unutrašnjim trenjem. Nelinearnosti i nesigurnosti u dinamičkim karakteristikama otežavaju postizanje visokih zahtjeva po stabilizaciji upotrebom konvencionalnih regulatora. Prikazana su dva različita primjera nelinearnog konstruiranja regulatora, prvi kod kojeg je postignuta linearizacija povratnim ciklusom, i drugi primjer linearizacije povratnim korakom. Uporabom oba regulatora postignuta je učinkovita stabilizacija u bilo kojoj radnoj točki sustava. Isto tako ostvaren je i bolji uvid u dinamičke karakteristike sustava što daje dodatnu vrijednost spomenutom regulatoru. Rezultati su potvrđeni računarskom simulacijom uporabom nelinearnog matematičkog modela sustava.
Keywords:računalniške simulacije, servo sistemi, elektrohidravlika, Lyapunova metoda, regulacija hitrosti


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica