Title :
Analysis of End Zone Magnetic Field in Generators and Shield Optimization for Force Reduction on End Windings
Author :
Lazarns, Vasilios S. ; Kladas, Antonios G. ; Mamalis, Athanassios G. ; Tegopoulos, John A.
Author_Institution :
Fac. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens
fDate :
3/1/2009 12:00:00 AM
Abstract :
This paper compares analytical methodologies, 2-D and 3-D finite-element techniques as well as methods based on image theory for the evaluation of leakage field on end windings of electrical machines. A particular 2-D numerical method based on finite element representation and axiperiodic symmetry has shown the best performance. The method has been applied to the geometry optimization of shields enabling force reduction on end windings of a permanent magnet machine.
Keywords :
finite element analysis; machine windings; magnetic shielding; optimisation; permanent magnet machines; axiperiodic symmetry; electrical machines; end windings; end zone magnetic field; finite-element method; force reduction; generators; image theory; permanent magnet machine; shield optimization; Finite-element method (FEM); generator end zones; leakage field; magnetic shielding;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2012682
