Current monitoring for detecting inter-turn short circuits in induction motors

被引:112
作者
Stavrou, A [1 ]
Sedding, HG
Penman, J
机构
[1] Elect Author Cyprus, CY-6015 Larnaka, Cyprus
[2] Ontario Hydro Technol, Toronto, ON M8Z 5S4, Canada
[3] Univ Aberdeen, Dept Engn, Aberdeen AB9 2UE, Scotland
关键词
D O I
10.1109/60.911400
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
In this paper the stator winding itself is used as the sensor for the detection of abnormalities in the stator winding. To achieve this task detailed analysis of the air gap flux distribution and its dependence on the particular machine configuration is carried out. The analysis presented is based on the rotating wave approach which accounts for all the stator and rotor MMF harmonics, stator and rotor slot harmonics and harmonics due to saturation. It is shown that the most reliable indicators of the presence of the fault are the lower sideband of field rotational frequency with respect to the fundamental, together with some of the components that are related to slotting. Some of them increase as functions of the link current, in a range from 0 to over 10% and some components decrease in the range 0-12%.
引用
收藏
页码:32 / 37
页数:6
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