Abstract
The motor is the workhorse of industry. The issues of preventive and condition-based maintenance, on-line monitoring, system fault detection, diagnosis, and prognosis are of increasing importance. This paper introduces fault detection for induction motors. Stator currents are measured by current meters and stored by time domain. The time domain is not suitable for representing current signals, so the frequency domain is applied to display signals. The Fourier transform is employed to convert signals. After signal conversion, signal features must be extracted by signal processing such as wavelet and spectrum analysis. Features are entered in a pattern classification model such as a neural network model, a polynomial neural network, or a fuzzy inference model. This paper describes fault detection results that use Fourier and wavelet analysis. This combined approach is very useful and powerful for detection signal features.
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This work was presented in part at the 9th International Symposium on Artificial Life and Robotics, Oita, Japan, January 28–30, 2004
This work has been supported by “Research Center for Future Logistics Information Technology” hosted by the Ministry of Education in Korea.
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Bae, H., Kim, YT., Lee, SH. et al. Fault diagnostic of induction motors for equipment reliability and health maintenance based upon Fourier and wavelet analysis. Artif Life Robotics 9, 112–116 (2005). https://doi.org/10.1007/s10015-004-0331-7
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DOI: https://doi.org/10.1007/s10015-004-0331-7