Analysis of the Impact of the Base Speed on the Characteristics of the Driving Motor of an Electric Multiple Unit

U radu je dan pregled strojeva s permanentnim magnetima s naglaskom na sinkroni motor s permanentnim magnetima (SMPM). Obrađena je podloga za matematičko modeliranje strojeva te je pomoću nje modeliran sinkroni stroj s unutarnjim permanentnim magnetima u rotirajućem koordinatnom sustavu. Opisan je model kretanja vlaka, otpori vuče koji se suprotstavljaju kretanju vlaka te F-v dijagram koji prikazuje ovisnost vučne sile na obodima kotača o brzini kretanja vozila. Dana je analiza vanjskih karakteristika SMPM-a s unutarnjim magnetima u ciklusu zaleta vlaka za slučaj kada se varira bazna brzina motora.The paper gives an overview of permanent magnet machines with a focus on permanent magnet synchronous motor (PMSM). The basis for mathematical modeling of machines is given and applied to interior permanent magnet synchronous motor in order to determinate a model in rotating coordinate system. A modell of train movement is described together with resistance forces, which oppose the movement of the train. The tractive effort curve is described showing the relationship between tractive effort and train velocity. Analysis of the impact of the base speed on the characteristics of the driving motor of an electric multiple unit is given