Behavior of three-phase induction motors with variable stator coil winding pitch

被引：2
|
作者：
Deshmukh, R [1 ]
Moses, AJ [1 ]
Anayi, F [1 ]
机构：
[1] Cardiff Univ, Wolfson Ctr Magnet Technol, Cardiff CF24 0YF, Wales
来源：
JOURNAL OF APPLIED PHYSICS | 2006年 / 99卷 / 08期
关键词：
D O I：
10.1063/1.2170062
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A pulse-width modulation (PWM) inverter and sinusoidal output voltage supplies feeding four different chorded three-phase induction motors were tested for low-order odd voltage harmonic components and efficiency at different loads. The total harmonic distortion due to the third, fifth, and ninth harmonics was lowest in a motor with 160 degrees coil pitch energized by both sinusoidal and PWM voltages. The efficiencies of the motor with the short-chorded winding were as much as 5% and 16% higher than that of the full-pitched motor under sinusoidal and PWM excitation, respectively, due to harmonic cancellation. (C) 2006 American Institute of Physics.
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页数：3
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