Comparative analysis of fully and semi-controllable three-phase rectifier in bridge connection carried out with the didactic-multimedia equipment

U diplomskom radu provedena je analiza za radno-induktivno opterećeni trofazni punoupravljivi i poluupravljivi ispravljač u mosnom spoju. Navedena je potrebna oprema, postupak mjerenja za obje topologije. Objašnjen je način spajanja Lucas-Nulle opreme, te način dobivanja različitih karakteristika u programskom paketu Labsoft. Analiza se sastojala od snimanja valnih oblika struje i napona izvora, te struje i napona trošila, kako bi se utvrdio utjecaj pretvarača na izvor i na trošilo. Analiza se izvršila za različite kutove kašnjenja okidanja. Izvršena je harmonijska analiza kako bi se odredili pokazatelji izmjeničnih karakteristika: ukupna harmonijska distorzija i faktor distorzije fazne struje. Također, određena je prividna, djelatna i jalova snaga kako bi se mogli kvantificirati utjecaji pojedinih topologija (punoupravljiva/poluupravljiva) na faktor snage u smislu opterećivanja mreže jalovom snagom. Izvršila se usporedba obje topologije te navele specifičnosti obje topologije.In the master’s thesis, An analysis for the working-inductively loaded three-phase fully controlled and semi-controlled bridge rectifier. The necessary equipment, measurement procedure for both topologies, is specified. The method of connecting Lucas-Nulle equipment and the method of obtaining different characteristics in the Labsoft software package are explained. The analysis consisted of recording wave forms of current and voltage of the source, as well as current and voltage used to determine the influence of the converter on the source and on the load. The analysis was performed for different angles of trigger delay. Harmonic analysis was conducted to determine the indicators of alternating characteristics: total harmonic distortion and phase current distortion factor. Also, the apparent, active and reactive power were measured in order to quantify the influence of individual topologies (fully controlled/semi-controlled) on the power factor in terms of load of the power grid with reactive power. Both topologies were compared and specified the specificities of both topologies