A new combined method to diagnosis loss of excitation from stable power swing in doubly fed induction generator

Document Type : Research Paper

Authors

Abstract

Loss of excitation (LOE) event is among the most frequent failures in electric generators. However, LOE detection studies heretofore were usually confined to synchronous generators. Common LOE detection methods are based on impedance trajectory what makes the system slow and also prone to misoperation in the case of stable power swing (SPS). This paper presents a new method to detect the LOE based on the measured variables from the DFIG terminal. In this combined method for LOE detecting, rate of change of terminal voltage and output reactive power and for SPS detecting, DC-link voltage of DFIG have been used. The performance of the proposed method has been confirmed by Matlab/Simulink simulations for various power capacities and operating conditions. The results prove the method's velocity, simplicity and security.

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References

[1] Zaggout, M., Tavner, P., Crabtree, C., Ran, Li. (2014).“Detection of rotor electrical asymmetry in wind turbine doubly-fed induction generators”. IET Renewable Power Generation, Vol. 8, pp. 878-886.
[2] Chen, M., Yu, L., Wade, N.S., Liu, X., Liu, Q., Yang, F. (2011)“Investigation on the faulty state of DFIG in a microgrid”. IEEE Transactions onPower Electronics, Vol. 26, pp. 1913-1919.
[3] Kundur, P.(1994). “Power System Stability and Control”. New York: Mc-Graw-Hill.
[4] Reimert, D.(2006). “Protective Relaying for Power Generation Systems”. Boca Raton, London, New York, third edition, Taylor & Francis..
[5] Amini, M., Davarpanah, M., Sanaye-Pasand, M.(2015).“A Novel Approach to Detect the Synchronous Generator Loss of Excitation”.IEEE Transactions on Power Delivery,Vol. 30, pp. 1429-1438.
[6] Berdy, J.(1975). “Loss of excitation protection for modern synchronous generators”. IEEE Trans. on Power App. Syst., vol. PAS-94, no. 5, pp. 1457–1463.
[7]  Ghorbani, A., Soleymani, S., Mozafari, B.(2015).“A PMU-based LOE pro-tection of synchronous generator in the presence of GIPFC”. IEEE  Trans.  Power Del., DOI:  10.1109/TPWRD.2015. 2440314.
[8]  Elsamahy, M.,  Faried, S.  O., Sidhu, T. (2014). “Impact  of  midpoint STATCOM  on  generator  loss  of  excitation  protection”. IEEE  Trans. Power Del., vol. 29, no. 2, pp. 724–732.
[9] Morais, A. P., Cardoso, G., Mariotto, L. (2010).“An innovative loss-of-excitation protection based on the fuzzy inference mechanism”. IEEE Transactions on Power Delivery, Vol. 25, pp. 2197-2204.
[10] Rana, R. D.,  Schulz, R. P., Heyeck, M.,  Boyer, T. R.(1990). “Generator loss of field study for AEP’s Rockport plant”. IEEE Comput. Appl. Power, vol. 3, no. 2, pp. 44–49.
[11]  Lee, C. H., Ma, L. S., Weng, C. H., Chen, B. K. (2011).“Lessons  learned from  the generator  loss of  field at a cogeneration thermal power plant  in Taiwan”.  IEEE  Transactions  on  Power  Sys.,  vol.  26,  no.  4, pp.  2093–2100.
[12] IEEE Power System Relaying Committee Working Group D6, (2005).“Power swing and out-of-step considerations on transmission lines”.
[13] NERC System Protection and Control Subcommittee, Rev. 1, (2010).“ Power plant and transmission system protection coordination”.
[14] Yaghobi, H. (2015).“Impact of static synchronous compensator on flux-based synchronous generator loss of excitation protection”. IET Generation, Transmission & Distribution, Vol. 9, pp. 874–883.
[15]Yaghobi, H., Mortazavi, H. (2015).“A novel method to prevent incorrect operation of synchronous generator loss of excitation relay during and after different external faults”. International Transactions on Electrical Energy Systems, Vol. 25, pp. 1717-1735.
[16] Abdou, A.F., Abu-Siada, A., Pota, H.R. (2013). “Improving fault ride through capability of DFIG duringRSC flashover fault”. IEEE International Conference on Smart Energy Grid Engineering, pp. 1-5.
[17] Abdou, A.F., Abu-Siada, A., Pota, H.R. (2012). “Application of STATCOM to improve the LVRT of DFIGduring RSC fire-through fault”. 22nd Australasian Universities Power Eng Conference, pp.1-6.
[18] Ouyang, J., Xiong, X. (2014).“Dynamic behavior of the excitation circuit of a doubly-fed inductiongenerator under a symmetrical voltage drop”. Renewable Energy, Vol. 71,pp. 629-638.
[19]Yao, J., Li, H., Liao, Y., Chen, Z. (2008). “An Improved Control Strategy of Limiting theDC-Link Voltage Fluctuation for a DoublyFed Induction Wind Generator”. IEEE Transactions on Power Electronics,Vol. 23, pp. 1205-1213.
[20] Mohammadi, J., Vaez-Zadeh, S.,Afsharnia, S., Daryabeigi, E. (2014). “A Combined Vector and Direct PowerControl for DFIG-Based Wind Turbines”. IEEE Transactions on Sustainable Energy,Vol. 5, pp. 767-775.
[21] Konopinski, R.J., Vijayan, P., Ajjarapu, V. (2009).“Extended reactive capability of DFIG wind parks forenhanced system performance”. IEEE Transactions on Power Systems, Vol. 24, pp. 1346-1355.
[22] Goodarzi, A. (2015). “Loss of excitation detection in DFIGs by using of stator flux linkage”, 23rd Iranian Conference on Electrical Engineering- ICEE-Tehran, Iran (in Persian).
Journal of Modeling in Engineering
Volume 15, Issue 51
October 2017
Pages 159-169

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History

  • Receive Date: 16 November 2015
  • Revise Date: 21 February 2016
  • Accept Date: 09 March 2016

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