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Regulacija vrtilne hitrosti indukcijskega motorja po U/f metodi
ID MAGDIČ, DOMEN (Author), ID Nedeljković, David (Mentor) More about this mentor... This link opens in a new window, ID Rihar, Andraž (Co-mentor)

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Abstract
V nalogi predstavim izvedbo regulacije vrtilne hitrosti indukcijskega stroja. V prvem poglavju opišem električne stroje na splošno, njihovo zgodovino, globlje pa se posvetim fizikalnemu delovanju uporabljenega indukcijskega stroja. Sledi opis zadanih ciljev: izdelava matematičnega modela stroja, izvedba regulacij in uporaba modela za nadaljnji razvoj regulacijskih algoritmov. Glavni del naloge se iz vsebinskega vidika lahko razdeli na dva dela, prvi je izdelava matematičnega modela v Matlabovi razširitvi Simulink, drugi del pa obsega izvedbo vodenja oziroma U/f regulacije na tem modelu stroja. V drugem poglavju opišem metodologijo izvedbe modela indukcijskega stroja s predstavitvijo teorije in enačb, iz katerih sem zgradil model v Simulinku. V naslednjem poglavju pregledam dobljene rezultate pri simulacijah matematičnega modela stroja in ovrednotim uspešnost delovanja. V četrtem poglavju se osredotočim na regulacijo vrtilne hitrosti stroja. Opišem različne pristope spreminjanja vrtilne hitrosti stroja in uporabljeno skalarno regulacijo (U/f) podrobneje predstavim z uporabo enačb in blokovnega diagrama. Sledi pregled rezultatov izvedbe U/f regulacije, kjer pregledam dobljene izhodne podatke pri simulaciji in komentiram njihovo skladnost s pričakovanji. V šestem poglavju povzamem ugotovitve na podlagi dobljenih rezultatov in predstavim načrte za nadaljnje delo.

Language:Slovenian
Keywords:električni stroj, indukcijski stroj, matematični model, Simulink, regulacija, vrtilna hitrost.
Work type:Bachelor thesis/paper
Organization:FE - Faculty of Electrical Engineering
Year:2023
PID:20.500.12556/RUL-150504 This link opens in a new window
COBISS.SI-ID:166724611 This link opens in a new window
Publication date in RUL:20.09.2023
Views:420
Downloads:17
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Secondary language

Language:English
Title:Speed control of an induction motor by V/f method
Abstract:
In the thesis, I present the implementation of speed control on an induction machine. In the first chapter, I provide a general overview of electric machines and delve deeper into the physical operation of the utilized induction machine and its history. This is followed by a description of the set objectives: creating a mathematical model of the machine, carrying out control implementations, and utilizing the model for further development of control algorithms. The main part of the thesis can be divided into two sections from a content perspective. The first section involves creating a mathematical model using the Matlab extension Simulink. The second section focuses on control implementations, specifically the U/f control, on this machine model. In the second chapter, I outline the methodology for developing the induction machine model, presenting the theory and equations used to construct the model in Simulink. In the subsequent chapter, I review the obtained results from simulations of the mathematical machine model and assess the suitability of its operation. The fourth chapter centers on the speed control of the machine. I describe various approaches for adjusting the machine's speed and provide a more detailed presentation of scalar control (U/f), using equations and a block diagram. This is followed by a review of the results from the U/f control implementation, where I examine the output data from simulations and provide commentary on their alignment with expectations. In the sixth chapter, I summarize the findings from the obtained results and present plans for future work.

Keywords:electric machine, induction machine, mathematical model, Simulink, control, rotational speed.

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