Title :
A quasi 3D formulation for analyzing characteristics of induction motors with skewed slots
Author :
Yamazaki, Katsumi
Author_Institution :
Dept. of Electr. Eng., Chiba Inst. of Technol., Narashino, Japan
fDate :
9/1/1998 12:00:00 AM
Abstract :
This paper presents an analyzing method for induction motors with skewed slots using combination of 2D and 3D finite element methods. 2D electromagnetic field equations at several cross sections of the motor are combined with consideration of currents continuity. A 3D analysis is applied to estimate the end effects of the motor and to modify the 2D equations. The method can estimate axial variation of the harmonic magnetic fields with small computer resources. The results of the method are compared with experimental data to examine the validity. The break points of the approximation used in the method are also shown
Keywords :
electric machine analysis computing; electromagnetic fields; field equations; finite element analysis; harmonics; induction motors; machine theory; machine windings; 2D electromagnetic field equations; approximation break points; axial variation; characteristics analysis; computer simulation; cross sections; currents continuity; end effects; finite element methods; harmonic magnetic fields; induction motors; quasi 3D formulation; skewed slots; Electromagnetic analysis; Electromagnetic fields; Equations; Finite element methods; Induction motors; Magnetic analysis; Magnetic cores; Magnetic fields; Saturation magnetization; Synchronous motors;
Journal_Title :
Magnetics, IEEE Transactions on
