The negative sequence impedance as fault indicator in induction motors

Authors

  • Fernando Villada Universidad de Antioquia
  • Diego Raúl Cadavid Universidad de Antioquia
  • José Edinson Aedo Universidad de Antioquia
  • Bernardo Andrés Benavides Universidad de Antioquia
  • Esteban Velilla Universidad de Antioquia

Keywords:

Induction motors, stator fault diagnosis, negative sequence impedance, digital signal processing (DSP)

Abstract


An algorithm to detect inter-turn faults in induction motors based on the negative sequence impedance is presented in this paper. The implementation through a digital prototype is also explained and its results are tested using a 3 Hp induction motor designed to induce inter-turn faults. It is concluded that the robustness of the algorithm can detect incipient faults from five turns, and it is a good tool for predictive maintenance of induction motors.
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References

J. Ilonen, J. Kamarainen, T. Lindh, J. Ahola, H. Kalviainen, J. Partanen. “Diagnosis Tool for Motor Condition Monitoring.” IEEE Transactions on Industry Applications. Vol. 41. 2005. pp. 963-971.

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F. Villada, D. Cadavid. “Diagnóstico de fallas en motores de inducción mediante la aplicación de redes neuronales artificiales.” Información Tecnológica. Vol. 18. 2007. pp. 105-112.

J. Sottile, J. L. Kohler. “An On-line Method to Detect Incipient Failure of Turn Insulation in Random-wound Motors,” IEEE Transaction on Energy Conversion. Vol. 8. 1993. pp. 762-768.

Q. Wu, S. Nandy. ”Fast Single-turn Sensitive Stator Inter-turn Fault Detection of Induction Motors based on Positive and Negative Sequence Third Harmonic Components of Line Currents”. IEEE Industry Applications Society Annual Meeting. Edmonton. Canadá. 2008. pp. 1-8.

F. Fang, S. Yang, X. Hou, Z. Wu. “Application of the Prony´s Method for Induction Machine Stator Fault Diagnosis”. International Conference on Electrical Machines and Systems ICEMS. Wuhan. China. 2008. pp. 827-831.

Low Cost Miniature Isolation Amplifiers AD202-204. Data Sheet Rev D. 10/2002.

MC56F8367. Preliminary Technical Data, Rev. 4.0. Freescale Semiconductor, Inc. 2005. Appendix Characteristics of the test bench Induction motor Power = 3 Hp

V = 220 Vrms, f = 60 Hz

P = 4

J = 0.04 kg.m2

N = 102 turns per each parallel way

Xs = 1.5068 Ω

Xr = 1.5068 Ω

Xm = 27.810 Ω

Rs = 0.720 Ω

Rr = 0.7817 Ω

Published

2013-03-20

How to Cite

Villada, F., Cadavid, D. R., Aedo, J. E., Benavides, B. A., & Velilla, E. (2013). The negative sequence impedance as fault indicator in induction motors. Revista Facultad De Ingeniería Universidad De Antioquia, (51), 7–13. Retrieved from https://revistas.udea.edu.co/index.php/ingenieria/article/view/14819

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