Control with switching components of the one leg three phase SPWM inverter by Arduino platform

Opisano je upravljanje jednom granom trofaznog izmjenjivača pomoću Arduina. Napravljena je teorijska podloga za analizu rada. Cilj rada je bio napraviti zadovoljavajuću pulsno-širinsku modulaciju na Arduino mikrokontroleru koja će davati IGBT-ovima upravljačke signale. Nakon toga je napravljen pregled sklopa. Dat je pregled komponenata, objašnjenje shemi, objašnjenje koda, te pregled korištenih alata, Typhoon HIL programskog paketa i Lucas Nulle Starter VI. Unutar Typhoon HIL-a su implementirani shema i pregled grafova, dok je u Lucas Nulle-u izvršena harmonijska analiza. Testirana su dva slučaja, sa konstantnim frekvencijskim indeksom i promjenjivim amplitudnim indeksom, te obrnuti, konstantan amplitudni indeks sa promjenjivim frekvencijskim indeksom. Napravljena je analiza osjetljivosti upravljanja s obzirom na modulacijski indeks i dubinu modulacije. Definirani su nedostatci predloženog upravljanja i ponuđena su rješenja uočenih nedostataka pri ponovnoj doradi makete.This thesis describes the control of a single phase of the three-phase inverter using an Arduino microcontroller. Theoretical basis for the problem has been made in the beginning of the thesis. The aim of this work was to make a sufficient pulse-width modulation on the Arduino board which will in turn give IGBT-s control signals. After that, an overview of the board has been made, followed up by an overview of components used, explanation of the circuit, explanation of the code and finally the overview of used programs, Typhoon HIL and Lucas Nulle. Circuit and the graph overview has been made within Typhoon HIL, while the spectral analysis has been made by the Lucas Nulle instrument and software. Testing has been made in two categories, one with a constant frequency index and a variable modulation index, while the other category the process has been reversed, having a constant modulation index with a variable frequency index. Sensitivity analysis of the controller was made while changing the modulation indeks and the depth of the modulation. Drawbacks of this solution have been defined and solutions have been offered to improve future model