Original scientific paperThis paper presents a grid-tied cascade H-bridge inverter with predictive current control technique. The proposed 15-level cascade inverter consists of three H-bridge inverters with separated DC sources. At the output of the cascade inverter an L filter is used as a grid filter. The cascade inverter is controlled by the mean of RT-Lab. The predictive current regulator and one-phase synchronous reference frame PLL are designed with help of Rapid Control Prototyping. The proposed control method uses a discrete model of the system to predict behavior of the system for each of 15 voltage levels of inverter output voltage. Verification by simulation and on a laboratory model is described.Key words: Cascade inverter, Predictive current control, RT-Lab, Synchronous frame PLL Strujno prediktivno upravljanje mrežnim H-mosnim izmjenjivačem. U ovom radu prikazan je kaskadni mrežni izmjenjivač u H-mostu sa strujnim prediktivnim upravljanjem. Predloženi 15-razinski kaskadni izmjenjivač sadrži tri H-mosna izmjenjivača s odvojenim DC izvorima. Na izlazu kaskadnog izmjenjivača dodan je induktivni mrežni filter. Kaskadni izmjenjivač upravlja se korištenjem RT-Lab programskog okruženja. Strujni prediktivni regulator i jednofazni PLL poravnat sa sinkronim koordinatnim sustavom dizajnirani su uz pomoć Rapid Control Prototyping metode. Predložena metoda upravljanja koristi diskretni model sustava za predikciju ponašanja sustava u svakom od 15 naponskih razina izlaznog napona izmjenjivača. Upravljanje je provjereno na simulacijskom modelu sustava i laboratorijskom postavu.Ključne riječi: kaskadni izmjenjivač, strujno prediktivno upravljanje, RT-Lab, PLL u sinkronom koordinatnom sustavu
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.