Title :
Force calculation in large electrical machines
Author :
Rizzo, M. ; Savini, A. ; Turowski, J.
Author_Institution :
Palermo Univ., Italy
fDate :
7/1/1989 12:00:00 AM
Abstract :
The use of simple analytical formulas corrected by a saturation coefficient obtained from a detailed field analysis to calculate electrodynamic forces is improved by the use of the finite-element method, assuming one pole pitch and nonlinear iron characteristics. The results confirm how important proper consideration of saturation is for generator reliability. The usefulness of simple analytical formulas for fast evaluation of influence of saturation and slot dimension is shown as well
Keywords :
electric field effects; electric machines; finite element analysis; analytical formulas; electrodynamic forces; field analysis; finite-element method; generator reliability; large electrical machines; nonlinear iron characteristics; pole pitch; saturation coefficient; slot dimension; Dielectrics and electrical insulation; Electrodynamics; Finite element methods; Geometry; Iron; Linearity; Machine windings; Magnetic flux; Magnetic noise; Stators;
Journal_Title :
Magnetics, IEEE Transactions on
