Title :
Design criteria of a tubular linear IPM motor
Author :
Bianchi, N. ; Bolognani, S. ; Tonel, F.
Author_Institution :
Dept. of Electr. Eng., Padova Univ., Italy
Abstract :
This paper describes the design criteria of a tubular linear motor, with interior permanent magnets. The key equations for the analysis of the motor are at first derived, considering both slotted and slotless topologies. Then, these equations are rearranged with the purpose of obtaining useful hints for the motor design. Force-to-volume ratio of different motor design solutions are compared considering the effect of motor dimensions and permanent magnet materials (ferrite and NdFeB). A finite element analysis is used to validate the results obtained from the analytical model, comparing the magnetic field quantities as well as the mechanical force. Basic considerations for the design of this kind of motor are reported
Keywords :
finite element analysis; linear motors; machine theory; magnetic fields; permanent magnet motors; permanent magnets; NdFeB; finite element analysis; force-to-volume ratio; interior permanent magnets; key equations; magnetic field quantities; mechanical force; motor design solutions; motor dimensions; permanent magnet materials; slotless topology; slotted topology; tubular linear IPM motor design criteria; Analytical models; Equations; Ferrites; Magnetic analysis; Magnetic flux; Permanent magnet motors; Permeability; Reluctance motors; Saturation magnetization; Servomotors;
Conference_Titel :
Electric Machines and Drives Conference, 2001. IEMDC 2001. IEEE International
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-7091-0
DOI :
10.1109/IEMDC.2001.939264
