Title :
Design procedure of bearingless high-speed switched reluctance motors
Author :
Chen, Li ; Hofmann, Wilfried
Author_Institution :
Dept. of Electr. Machines & Drives, Tech. Univ. Dresden, Dresden, Germany
Abstract :
This paper focuses on the design of bearingless high-speed switched reluctance motors with single layer windings based on their special characteristics, which are different from normal switched reluctance motors and other types of bearingless motors. The design begins with calculating magnetic air gap considering influences of eccentric forces. Then winding number and winding maximal inductance are chosen due to reducing influences of winding current delay on generation of radial forces. As an example, a design of 500 W bearingless motor at 30000 rpm is completed. Finite element calculations are used to verify the design steps.
Keywords :
finite element analysis; reluctance motors; bearingless high-speed switched reluctance motors; eccentric forces; finite element calculations; magnetic air gap; normal switched reluctance motors; power 500 W; radial forces; single layer windings; winding current delay; Commutation; Delay; Finite element methods; Inductance; Induction motors; Machine windings; Magnetic levitation; Power generation; Reluctance motors; Torque; bearingless motor; eccentricity; inductance; levitation forces;
Conference_Titel :
Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on
Conference_Location :
Pisa
Print_ISBN :
978-1-4244-4986-6
Electronic_ISBN :
978-1-4244-7919-1
DOI :
10.1109/SPEEDAM.2010.5544963