Behavior of DFIG Based Wind Energy Conversion System Due to Short Circuit of DC-Link Capacitor

Authors(2) :-V. K. Chaudhary, Kuldeep Sahay

The aim of this paper is to present the complete modelling and simulation of wind turbine driven doubly fed induction generator which feeds AC power to the utility grid. For that, two pulse width modulated voltage source converters are connected back-to-back between the rotor terminals and utility grid via common DC-link. The grid side converter controls the power flow between the DC-bus and the AC-side and allows the system to be operated in sub-synchronous and super-synchronous mode of operation. Here, the effect of DC-link electrolytic capacitor malfunction of DFIG based wind energy conversion system (WECS) is investigated. The degradation of electrolytic capacitor can lead to the malfunction of DC-link. As DFIG based WECS utilize low power converter, so there is a requirement to investigate the effects of capacitor short circuit. This breakdown (short circuit of capacitor) leads to the power ullage, high machine currents, high transient currents in rotor circuit, low terminal voltage of the generator and increase in generator speed. All these scenarios have been simulated with the help of the simulation program using MATLAB and its inbuilt components provided in SIMULINK library to study the effects of DC-link capacitor short circuit on different parameters of system.

Authors and Affiliations

V. K. Chaudhary
M. Tech(scholar), Dr. A.P.J. Abdul Kalam Technical University, Lucknow ,Uttar Pradesh, India
Kuldeep Sahay
Professor & Head, Dept. of EE, Institute of Engineering & Technology, Lucknow, Uttar Pradesh, India

Doubly Fed Induction Generator (DFIG), Wind Energy Conversion System (WECS), Stator Voltage Oriented Control (SVOC), Grid Side Converter (GSC), Rotor Side Converter (RSC).

  1. Babypriya, B., Anita,R., "Modelling, simulation and analysis of doubly fed induction generator (DFIG) for wind turbines" , Journal of ELECTRICAL ENGINEERING, VOL. 60,  NO. 2,  2009.
  2. Bhim Singh, "Performance of Wind Energy Conversion System using a Doubly Fed Induction Generator for Maximum Power Point Tracking," 2010IEEE TRANSACTION paper.
  3. R. Pena, J.C.Clare and G. M. As her, "Doubly fed induction generator using back-to-back PWM converters and its application to variable-speed wind-energy generation," in Proc. IEEE., Electr. Power Appl., vol.143, no.3, May 1996, pp. 231-241.
  4. Hitachi AIC Inc. "Estimated life of aluminium electrolytic capacitors" Tokyo, Japan. 1999.
  5. Lee K.W., Kim M., Yoon J. et al. "Condition Monitoring of DC-Link Electrolytic Capacitors in Adjustable-Speed Drives," IEEE Transactions on Industrial Applications, pp. 1606–1613, Sept./Oct. 2008
  6. Gasperi M. L. "Life prediction modeling of bus capacitors in ac variable-frequency drives" IEEE Transactions on Industry Applications Nov./Dec. 2005. 41(6) 1430–1435p.
  7. Layhani A., Venet P., Grellet G. et al. "Failure prediction of electrolytic capacitors during operation of a switch-mode power supply" IEEE Transactions on Power Electronics Nov. 1998. 13(6) 1199–1207p.
  8. Rakesh Sharma, Kuldeep Sahay, Satyendra Singh, "Modeling and simulation of Fixed and Variable Speed of DFIG Wind System", International Journal of Recent Development in Engineering and Technology, volume 2, Issue 5, 52-60, May 2014, ISSN 2347 ¬ 6435.
  9. Yu Zou  Malik Elbuluk* Yilmaz Sozer, "A Complete Modeling and Simulation of Induction Generator Wind Power Systems" Industry Applications Society Annual Meeting (IAS), 2010 IEEE.
  10. Shuhui Li, Timothy A. Haskew, Rajab Challoo, and Marty Nemmers, "Wind Power Extraction from DFIG Wind Turbines Using Stator-Voltage and Stator-Flux Oriented Frames," International Journal of Emerging Electric Power Systems, vol. 12, iss. 3, Article 7, 2011
  11. B. Wu, Y. Lang, N. Zargari, and S. Kouro, Power Conversion and Control of Wind Energy Systems. John Wiley & Sons, Inc., 2011.
  12. G. Abad, J. Lopez, M. A. Rodriguez, L. Marroyo, and G. Iwanski, Doubly Fed Induction Machine: Modeling and Control for Wind Energy Generation, John Wiley & Sons, Inc, 2011, Nov 1997,PES General Meeting., July 2008, pp. 1-6.
  13. Ali M. Eltamaly* & Ammar Anwar Khan, "Investigation of DC link Capacitor Failures in DFIG based Wind Energy Conversion System" King Saud University, Riyadh, Saudi Arabia

Publication Details

Published in : Volume 3 | Issue 6 | September-October 2017
Date of Publication : 2017-10-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 813-819
Manuscript Number : IJSRSET1736214
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

V. K. Chaudhary, Kuldeep Sahay, " Behavior of DFIG Based Wind Energy Conversion System Due to Short Circuit of DC-Link Capacitor, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 6, pp.813-819, September-October-2017.
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