Real-time implementation of the sliding DFT applied to on-line's broken bars diagnostic

被引：7

作者：

Abed, A ^{[1
]}

Weinachter, F ^{[1
]}

Razik, H ^{[1
]}

Rezzoug, A ^{[1
]}

机构：

[1] Univ H Poincare, GREEN, CNRS, UPRESA 7037, F-54506 Vandoeuvre Les Nancy, France

来源：

IEMDC 2001: IEEE INTERNATIONAL ELECTRIC MACHINES AND DRIVES CONFERENCE | 2001年

关键词：

diagnostic; broken-bars; on-line spectral analysis; sliding DFT; induction motor;

D O I：

10.1109/IEMDC.2001.939323

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Electric motors have a very important role for safe and efficient running in many industrial or power plant. Early detection of abnormalities in the motors contributes to avoid expensive failures. It has been shown that rotor faults can be detected thanks to the spectral analysis of the stator current using FFT/DFT algorithms. They are usually performed and analysed off-line after data acquisition. The proposed method allows to obtain the DFT immediately after the arrival of each new sample. This technique is suitable for the on-line running spectral analysis of the stator current in order to detect the components due to rotor broken bars while the machine is operating. Experimental results show the efficiency of the proposed method for an on-line diagnostic.

引用

页码：345 / 348

页数：4