Due to the current transition to electro mobility, requirements in terms of power density, specific power and efficiency are continually increasing for electrical drives. Thus, to improve these main quantities especially for electric traction drives, new and suitable approaches for motor optimization will be searched. Whereas most current traction drives are developed as high voltage concepts, the present work deals with the implementation of a PMSM design with low voltage level. The reduced voltage results from the use of single-turn coils, which offer benefits in terms of winding insertion and insulation effort. In combination with concentrated winding bars, the slot fill ratio can be enlarged up to 80 %, whereby higher power density, greater specific power and an improved efficiency arise. Since studies are focused on numerical simulation of PMSM so far, the next step comprises the practical realization of the new winding and dimensioning concept. In conjunction with the interdisciplinary "Thuringian Center of Innovation in Mobility" (www.mobilitaetthueringen. de), the implementation of an electric drive train demonstrator will be performed. The developed traction machine contains a single-turn bar winding for a high motor utilization and the operation in ELV-range.
Increased power density of permanent magnet synchronous machines by use of concentrated bar windings
2012
5 Seiten, 9 Bilder, 1 Tabelle, 5 Quellen
Conference paper
English
elektrischer Antrieb , Traktionsmotor , numerische Simulation , Leistungsdichte , Kraftverstärkung , Wendestange , Permanentmagnet , Synchronmaschine , Stromübergang , Hochspannung , Niederspannung , Unterspannung , Demonstrationsmodell , Hybridfahrzeug , Elektrofahrzeug , Elektroantrieb , Hilfsantrieb , Hochleistung , elektrische Maschine , Dauermagnet
AC Machines: Permanent Magnet Synchronous and Induction Machines
Springer Verlag | 2021
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