Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

access icon openaccess Investigation of wound rotor induction machine vibration signal under stator electrical fault conditions

This paper investigates wound rotor induction machine torque and vibration signals spectra for operation with and without a stator short-circuit or open-circuit winding fault. Analytical expressions that enable the healthy and faulty machine pulsating electromagnetic torque frequencies to be related to shaft speed are derived and validated for operating conditions of interest. A coupled-circuit machine model is used to investigate the healthy and faulty electromagnetic torque signal. Shaft torque and stator frame vibration are measured on a laboratory test rig comprising a 30 kW wound rotor induction machine. It is shown that the existence of a stator winding inherent electrical unbalance or that arising from fault gives rise to a range of pulsating torque frequencies that are transmitted to the machine frame and can be detected in the measured vibration signal. The magnitudes of the resulting vibration components are demonstrated to be largely determined by the unbalance severity and the mechanical system response. The presented experimental results clearly validate the analytical and simulation analysis for the operating range of the investigated industrial machine design.

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
      • 2. UpWind: Design Limits and Solutions for Very Large Wind Turbines’, The European Wind Energy Association Report, EWEA, March 2011.
    13. 13)
      • 1. EU Energy Policy to 2050’, The European Wind Energy Association Report, EWEA, March 2011.
    14. 14)
    15. 15)
    16. 16)
    17. 17)
    18. 18)
    19. 19)
    20. 20)
    21. 21)
      • 23. Healey, R.C., Lesley, S., Williamson, S., Palmer, P.R.: ‘The measurement of transient electromagnetic torque in high performance electrical drives’. Proc. Sixth Int. Conf. Power Electronics and Variable Speed Drives, Nottingham, UK, 1996, pp. 226229.
    22. 22)
      • 9. Yazidi, A., Henao, H., Capolino, G.A., Betin, F.: ‘Rotor inter-turn short circuit fault detection in wound rotor induction machines’. Proc. IEEE ICEM 2010, Rome, Italy, 2010, pp. 16.
    23. 23)
    24. 24)
      • 18. Djurovic, S., Vilchis-Rodriguez, D., Smith, A.C.: ‘Vibration monitoring for wound rotor induction machine winding fault detection’. 2012 XXth Int. Conf. Electrical Machines (ICEM), 2–5 September 2012, pp. 19061912.
    25. 25)
      • 8. Williamson, S., Djurović, S.: ‘Origins of stator current spectra in dfigs with winding faults and excitation asymmetries’. Proc. IEEE IEMDC 2009, Miami, USA, 2009, pp. 563570.
    26. 26)
    27. 27)
      • 5. Alewine, K., Chen, W.: ‘Wind turbine generator failure modes analysis and occurrence’. Windpower 2010, Dallas, Texas, May, 2010, pp. 16.
    28. 28)
    29. 29)
      • 6. Alewine, K., Chen, W.: ‘A review of electrical winding failures in wind turbine generators’. Proc. IEEE Electrical Insulation Conf. (EIC) 2011, June 2011, pp. 392397.
    30. 30)
      • 4. Wilkinson, M., Hendriks, B., Spinato, F., et al: ‘Methodology and results of the reliawind reliability field study’. Scientific Proc. European Wind Energy Conf. (EWEC), Warsaw, Poland, March 2010.
    31. 31)
      • 20. Tuohy, P., Djurović, S., Smith, A.C.: ‘Finite element analysis of winding fault effects in a wound rotor induction machine with experimental validation’. Proc. IET PEMD 2012, Bristol, UK, 2012, pp. 16.
    32. 32)
    33. 33)
      • 24. Djurović, S., Williamson, S.: ‘Influence of supply harmonic voltages on dfig stator current and power spectrum’. Proc. IEEE ICEM 2010, Rome, Italy, 2010, pp. 16.
    34. 34)
      • 12. Yang, W., Tavner, P.J., Crabtree, C.J., Feng, Y., Qiu, Y.: ‘Wind turbine condition monitoring: technical and commercial challenges’, Wind Energy, 2012.
    35. 35)
      • 11. Crabtree, C.J.: ‘Survey of commercially available condition monitoring systems for wind turbines’. SuperGen Wind Energy Technologies Consortium, November 2010.
http://iet.metastore.ingenta.com/content/journals/10.1049/joe.2014.0116
Loading

Related content

content/journals/10.1049/joe.2014.0116
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address