Title :
Short-circuit current reduction of PM motors by magnet segmentation technique
Author :
Vaseghi, B. ; Takorabet, N. ; Meibody-Tabar, F.
Author_Institution :
Inst. Nat. Polytech. de Lorraine, Nancy Univ., Vandoeuvre-lès-Nancy, France
Abstract :
A limited short circuit current PM motor is studied based on the segmentation of the rotor magnets. The principle is to reduce the magnetic flux by means of magnets subdivision and an increase of rotor pole number. The effect of magnet segmentation on machine characteristics is analyzed using finite element method (FEM). The short circuit current of designed fault tolerant machine is well limited and does not lead to the damage the winding.
Keywords :
fault tolerance; finite element analysis; machine theory; machine windings; permanent magnet motors; short-circuit currents; FEM; PM motors; fault tolerant machine; finite element method; magnetic flux; rotor magnet segmentation technique; rotor pole number; short-circuit current reduction; Aircraft propulsion; Geometry; Inductance; Machine windings; Magnetic analysis; Magnetic circuits; Magnetic flux; Rotors; Short circuit currents; Stator windings;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5481338
