Primerjava faznega in pulzno-širinskega načina krmiljenja stikal pri regulaciji vrtilne hitrosti enosmernega motorja s trajnimi magneti

REK, ROBI (author), Vončina, Danjel (mentor)

Dandanes električne motorje najdemo praktično skoraj v vsaki napravi. Vsak električni motor pa seveda potrebuje krmiljenje, da lahko opravlja svojo nalogo. Krmiljenja se razlikujejo predvsem zaradi različnih motorjev ter seveda od naloge, ki jo mora motor opravljati. V nekaterih aplikacijah se motorji vrtijo stalno z visokimi vrtilnimi hitrostmi, medtem ko lahko isti motor opravlja nalogo z zelo nizko vrtilno hitrostjo in z velikim navorom, uporabimo lahko tudi isti motor vendar so zahteve v aplikaciji lahko povsem drugačne. Moja tema diplomske naloge je osredotočena na primerjavo dveh izvedb krmiljenja enosmernega motorja s trajnimi magneti in sicer med krmiljenjem s faznim zamikom ter krmiljenjem s pulzno-širinsko modulacijo. Rezultat diplomske naloge je odgovor na vprašanje:“Katero krmiljenje je boljše ter zakaj?“. Kot orodje za primerjavo teh dveh krmiljenj sem večinoma uporabljal program Excel, v katerem sem naredil vse izračune ter tudi simulacije različnih prehodnih pojavov. Kot sistem, na katerem sem delal vse izračune in simulacije sem uporabil Philipsov sokovnik. Po koncu preračunavanja in analiziranja sem opravil še meritve na uporabljenem sistemu, s čimer sem preveril točnost izračunov v primerjavi z realnim sistemom.

• Language: Slovenian
• Keywords: Krmiljenje, elektromotor, fazni zamik, pulzno širinska modulacija, analiza, Philips, Excel
• Work type: Bachelor thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2018
• PID: 20.500.12556/RUL-101890
• Publication date in RUL: 10.07.2018

Secondary language

• Language: English
• Title: Comparison of permanent magnet DC motor speed control using PWM- and phase controller

Abstract

Nowadays we can find electric motors in almost every appliance. Every electric motor also needs the appropriate controller, which controls the motor. There are many different controllers that depend on the type of the electric motor and of course also because of different applications of the motor. In some applications the motor has to operate at high angular speed and with relative low torque but in the other applications we can also use the same motor but the requirements of application can be completely different. My subject of Bachelor thesis is focused on comparison of two different types of controller for direct current permanent magnet electric motor. The first one is phase controler and the second one is chopper controler which is realized with pulse-width modulation. Result of my thesis is answer on the following question: “Which controller is better and why?”. As comparison tool for controllers I used mainly Excel software package. I’ve calculated and simulated different responses of the system in Excel software. As a system I used already existing Philips’s juicer. When the calculations and analysis were finished I also performed all the measurements on the real system and confirmed the accuracy of my calculations.

• Keywords: Controller, electric motor, phase shift, pulse width modulation, Philips, Excel, analysis