Title :
Induction motor analysis considering both harmonics and end effects using combination of 2D and 3D finite element method
Author :
Yamazaki, Katsumi
Author_Institution :
Dept. of Electr. & Electron. Syst. Eng., Teikyo Univ., Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
The paper presents a numerical method for analyzing induction motors considering magnetic saturation, harmonics, and leakage flux, and voltage drop of end-rings. The end effects are estimated by a 3D linear analysis using phasor and edge finite elements. As a result, a 2D nonlinear time-stepping finite element formulation is modified to estimate the magnetic saturation and the harmonics. The method takes the electromagnetic fields at the ends of the motor into account using limited computer resources. From comparisons between the results of the analysis and experiments, it is clarified that the method can estimate torque, currents and harmonic magnetic fields with enough accuracy
Keywords :
electromagnetic fields; finite element analysis; harmonics; induction motors; machine theory; magnetic flux; magnetic leakage; parameter estimation; torque; 2D finite element method; 2D nonlinear time-stepping finite element; 3D finite element method; 3D linear analysis; coil end; currents estimation; edge finite elements; electromagnetic fields; end effects; end-rings voltage drop; harmonic magnetic fields estimation; harmonics estimation; induction motor analysis; leakage flux estimation; magnetic saturation; phasor finite elements; torque estimation; Electromagnetic fields; Finite element methods; Harmonic analysis; Induction motors; Magnetic analysis; Magnetic fields; Magnetic flux; Saturation magnetization; Torque; Voltage;
Journal_Title :
Energy Conversion, IEEE Transactions on
