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master's thesis
Promjena induktiviteta asinkronog motora za vrijeme direktnog zaleta
2018. urn:nbn:hr:200:386819
Halak, Filip
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Electromechanical Engineering
Chair of Fundamentals of Electrical Engineering and Measurements

Cite this document

Halak, F. (2018). Promjena induktiviteta asinkronog motora za vrijeme direktnog zaleta (Master's thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:386819

Halak, Filip. "Promjena induktiviteta asinkronog motora za vrijeme direktnog zaleta." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2018. https://urn.nsk.hr/urn:nbn:hr:200:386819

Halak, Filip. "Promjena induktiviteta asinkronog motora za vrijeme direktnog zaleta." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2018. https://urn.nsk.hr/urn:nbn:hr:200:386819

Halak, F. (2018). 'Promjena induktiviteta asinkronog motora za vrijeme direktnog zaleta', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 28 October 2020, https://urn.nsk.hr/urn:nbn:hr:200:386819

Halak F. Promjena induktiviteta asinkronog motora za vrijeme direktnog zaleta [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2018 [cited 2020 October 28] Available at: https://urn.nsk.hr/urn:nbn:hr:200:386819

F. Halak, "Promjena induktiviteta asinkronog motora za vrijeme direktnog zaleta", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:200:386819

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Metadata
TitlePromjena induktiviteta asinkronog motora za vrijeme direktnog zaleta
Title (english)Change of induction motor inductance during starting
AuthorFilip Halak
MentorMarinko Barukčić (mentor)
Committee memberMarinko Barukčić (predsjednik povjerenstva)
Committee memberŽeljko Hederić (član povjerenstva)
Committee memberTin Benšić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Electromechanical Engineering)
(Chair of Fundamentals of Electrical Engineering and Measurements)
Osijek
Defense date and country2018-04-06, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electromechanical Engineering
Abstract
U ovom radu je opisan matematicki model asinkronog motora, detaljno je objasnjena transformacija velicina u dvoosni koordinatni sustav i prebacivanje u sustav relativnih jedinica. Iznesena je teza o promjenjivosti induktiviteta prilikom direktnog uklopa koja se temelji na slicnim pojavama kod sinkronih generatora. Model asinkronog motora prenesen je u prostor varijabli stanja. Napravljen je kratki pregled genetskog algoritma i MATLAB funkcije ga optimizacijskog programskog paketa. Takoder je predocen algoritam koji omogucuje identikaciju promjenjivih parametara. Obavljenja su mjerenja napona, struje i brzine vrtnje za vrijeme zaleta direktnim uklopom te je na tim podacima napravljena estimacija parametara stroja. Estimacija se bazira na rjesavanju matematickog problema minimizacije najmanjih kvadrata. Nakon vise provedenih estimacija s razlicitim parametrima algoritma predstavljeni su i komentirani rezultati.
Abstract (english)
A mathematical model of an induction motor, a transformation of variables to direct-quadrature reference frame and conversion to per-unit system is shown in this master thesis. The assumption of variable inductance during free acceleration test of an induction motor, based on similar phenomena occurring with synchronous generators, is presented. Mathematical model dierential equations are converted to state-space model. A short overview of the genetic algorithm is given, including MATLAB function ga of Global optimisation toolbox. An algorithm for applying GA for estimating variable parameters is explained. The measurement of current, voltage and speed are carried out during the free acceleration test and results are used to perform parameter estimation. The estimation is based on least squares minimization problem. Several estimation results are shown and commented on.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:386819
Study programmeTitle: Graduate University Study Programme in Electrical Engineering; specializations in: Communications and Informatics, Power Engineering
Course: Power Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike (magistar/magistra inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2018-04-12 10:38:34