Effects of unbalanced voltage on the operation performance of a three-phase induction motor

被引:169
作者
Lee, CY [1 ]
机构
[1] Natl Taipei Univ Technol, Dept Elect Engn, Taipei, Taiwan
关键词
three-phase induction motor; voltage unbalance factor; sequence voltage component; power factor; efficiency; temperature rise;
D O I
10.1109/60.766984
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This paper uses a real load test to investigate the effects of an unbalanced voltage supply on an induction motor's performance. Based upon various experiments, including (1) cases with the same unbalance voltage factor but different unbalanced voltages, (2) cases with only one unbalanced voltage but different degrees of unbalance, and (3) cases with the same positive-sequence voltage but different negative-sequence voltages, the importance of the positive-sequence voltage in the motor's apparent performance and of the negative-sequence voltage in the hidden damage are pointed out. Finally, it is strongly suggested that the related regulations, and a motor's derating factor and temperature rise curves should be based on not only a voltage unbalance factor, but also the magnitude of the positive-sequence voltage.
引用
收藏
页码:202 / 208
页数:7
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