Sustav upravljanja višefaznim aktuatorom

master's thesis

• Title (english): Multiphase Actuator Control System
• Author: Tin Vlašić
• Mentor: Damir Seršić (mentor)
• Committee member: Damir Seršić (predsjednik povjerenstva)
• Committee member: Davor Petrinović (član povjerenstva)
• Committee member: Mladen Vučić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-07-11, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Predložen je model trofaznog motora koji bi mogao smanjiti dimenzije motora većih snaga. Napravljen je matematički model i simulacija u programskom alatu MATLAB. Detaljno su obrađeni vektorsko upravljanje motora i vektorska modulacija širine impulsa koja upravlja sklopkama invertera. Osmišljen je senzor apsolutnog položaja za određivanje mehaničkog položaja rotora odnosno električnog kuta magnetskog toka rotora. Uspoređeni su načini mjerenja trofaznih struja s jednim, dvama ili trima otpornicima i objašnjeno kada najprikladnije uzorkovati napone na otpornicima za slučaj s tri otpornika. Naposljetku u poglavlju implementacija sustava opisano je koje se sve periferije i dijelovi mikrokontrolera koriste, njihovo uhodavanje te koraci provjere ispravnosti sustava. U dodacima su MATLAB kod simulacije modela motora i programski kod algoritma vektorskog upravljanja u C jeziku.

Abstract (english)

Three-phase motor model that could cut down the volume of great power motors is proposed. Mathematical model and simulation in MATLAB are made. Then there are field oriented control (FOC) and space vector pulse width modulation (SVPWM) which controls inverter switches described in detail. Absolute position sensor is designed to measure the mechanical position of rotor i.e. to determine the electrical angle of rotor flux. Methods of three-phase current measurement with one, two or three resistors are compared and when to sample the voltages on resistors in case of three resistors is explained. At last, microcontroller’s parts and peripherals used in system are listed. It is described in levels how to gradually build up the system so it can be confidently operated. There are MATLAB simulation code for motor model and code of FOC algorithm in C in appendices.

• Keywords: trofazni motor; višefazni aktuator; vektorsko upravljanje; vektorska modulacija širine impulsa; senzor apsolutne pozicije; mjerenje trofaznih struja
• Keywords (english): three-phase motor; multiphase actuator; field oriented control (FOC); space vector pulse width modulation (SVPWM); absolute position sensor; three-phase current measurement
• Language: croatian
• URN:NBN: urn:nbn:hr:168:484917
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-14 02:01:40