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Title:Električni in elektromehanski pretvorniki : zapiski predavanj
Authors:ID Zagradišnik, Ivan (Author)
ID Ritonja, Jožef (Author)
ID Dremelj, Denis (Illustrator)
Files:URL https://press.um.si/index.php/ump/catalog/book/716
 
.pdf RAZ_Zagradisnik_Ivan_2022.pdf (6,34 MB)
MD5: 8EE3550E05664053ACF7A905EF02219A
 
Language:Slovenian
Work type:Higher education textbook
Organization:FERI - Faculty of Electrical Engineering and Computer Science
UZUM - University of Maribor Press
Abstract:V publikaciji so predstavljene osnove elektromehanske pretvorbe in štirje osnovni električni stroji: transformator, asinhronski stroj, sinhronski stroj in komutatorski stroj. Publikacija je razdeljena v pet poglavij. V nadaljevanju je predstavljena vsebina posameznih poglavij. Uvod: magnetno polje, vzbujanje navitij, induciranje napetosti, sile in vrtilni moment (navor), pretvarjanje električne moči v električno ali mehansko, izgube, izkoristek, segrevanje in hlajenje. Transformator: elementi gradnje, idealni in realni enofazni transformator, trifazni transformator, posebne izvedbe transformatorjev. Asinhronski stroj: opis gradnje z navitji in način delovanja, zagoni motorjev in spreminjanje hitrosti vrtenja ter vrtilnega momenta, asinhronski generator, enofazni asinhronski motorji. Sinhronski stroj: opis gradnje in način delovanja, obratovanje na togem omrežju, približna obravnava nasičenega stroja, vzbujalni sistemi in uporaba trajnih magnetov za vzbujanje, ter sinhronski motorji s trajnimi magneti. Komutatorski stroj: opis gradnje in način delovanja, reakcija kotve, problemi komutacije, elektronska komutacija, karakteristike različnih električnih vezav statorja in rotorja, spreminjanje hitrosti vrtenja, izmenični (univerzalni) komutatorski stroji.
Keywords:osnove elektromagnetike, transformator, asinhronski stroj, sinhronski stroj, komutatorski stroj
Place of publishing:Maribor
Place of performance:Maribor
Publisher:Univerza v Mariboru, Univerzitetna založba
Year of publishing:2022
Year of performance:2022
PID:20.500.12556/DKUM-83116 New window
ISBN:978-961-286-649-5
UDC:621.313/.314(075.8)(0.034.2)
COBISS.SI-ID:120080131 New window
DOI:10.18690/um.feri.11.2022 New window
Publication date in DKUM:19.09.2022
Views:1232
Downloads:793
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:19.09.2022

Secondary language

Language:English
Title:Electrical and electromechanical converters : lecture notes
Abstract:The publication presents basics of electromechanical conversion and four fundamental electrical machines: transformer, induction machine, synchronous machine and commutator machine. The publication is organized in five chapters with contents as is written bellow. Introduction: magnetic field, windings, induced voltage, forces and torque, electrical and electromechanical conversions, losses, efficiency, heating, and cooling. Transformer: construction, basic principles of operation, ideal and real single-phase transformer, three-phase transformer, special types of transformers. Induction machine: description of construction, principle of steady state operations, starting of motors and changing of speed and torque, induction generator, single-phase induction motors. Synchronous machine: description of construction, principle of operation, working on an infinite bus, simplified description of the saturated machine, excitation systems and use of permanent magnets for excitation, synchronous motors with permanent magnets. Commutator machine: description of construction and operation, armature reaction, commutation problems, commutation with electronics, characteristics of different stator and rotor connection, changing of speed, alternating commutator machine.
Keywords:basics of electromagnetism, transformer, induction machine, synchronous machine, commutator machine


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