20.500.12556/DKUM-18701 HARMONIČNA ANALIZA NAPETOSTI IN TOKA PRI MEHKEM ZAGONU ASINHRONSKEGA MOTORJA HARMONIC ANALYSIS OF VOLTAGE AND CURRENT FOR SOFT START OF INDUCTION MOTOR Diplomsko delo obravnava dva načina zagona asinhronskega elektromotorja. V prvem delu smo za mehki zagon motorja uporabili napajalnik ALTISTART 3. V drugem delu pa smo za mehki zagon uporabili frekvenčni pretvornik COMBIVERT 56. Meritve smo izvedli pri različnih obremenitvah motorja. Za obremenitev motorja smo uporabili aktivno breme sestavljeno iz asinhronskega stroja in frekvenčnega pretvornika. Cilj diplomske naloge je bil izdelati program za harmonično analizo meritev in analizirati vhodni tok, tok v motor, napetost na motorju in moment motorja. Program za analizo in izrise je napisan v MatLab-u. Vse meritve v zvezi z diplomsko nalogo so bile izvedene v Laboratoriju za aplikativno elektromagnetiko na Fakulteti za elektrotehniko, računalništvo in informatiko v Mariboru. The diploma thesis deals with two ways to start induction motor. In the first part we used power supply ALTISTART 3 for soft start of electric motor. In the second part we used frequency converter COMBIVERT 56 for the same start. All measurements were made with different load of a motor. For motor load we used active load which was composed from induction motor charging from frequency converter. The goal of this diploma thesis was to make a program for harmonic analysis of measurements and to analyse input current, current into the motor, motor voltage and motor torque. The program for the analysis and plots is written in MatLab. All work connected with this diploma thesis has been done in the Applied Electromagnetics Laboratory of the Faculty of Electrical Engineering and Computer Science in Maribor. mehki zagon frekvenčni pretvornik harmonična analiza soft start frequency converter harmonic analysis true true false [N. Šeruga] Slovenski jezik Angleški jezik Diplomsko delo 2011-05-26 15:42:29 2011-06-01 10:05:04 2022-04-13 10:58:00 2023-12-24 03:18:01 2011 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.314.26:621.313.33(043.2) 15201814 URN:SI:UM:DK:ZVZLTIW2 UNI_Seruga_Nino_2011.pdf UNI_Seruga_Nino_2011.pdf 1 F7714414874009038191AFE6768B5DCC 18a0305c418575b525175fc7864e7f5e2b39e5c431e4ae38ca9816b95342a427 30f1d54e-7c05-11eb-bb7a-00155d0001ca 20.500.12556/dkum/2006ad2f-4300-4924-8d21-26e2e50a1b06 https://dk.um.si/Dokument.php?lang=slv&id=22305 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0