Comparison of Various Methods to Mitigate the Flicker Level of DFIG in Considering the Effect of Grid Conditions

  • Kim, Yun-Seong (Dept. of Electrical and Electronics Eng., INHA University) ;
  • Marathe, Aditya (Dept. of Electrical and Electronics Eng., INHA University) ;
  • Won, Dong-Jun (Dept. of Electrical and Electronics Eng., INHA University)
  • Published : 2009.06.20

Abstract

The short circuit ratio (SCR) of a given grid is able to show the stability of the system in the case of unwanted elements, such as wind turbulence. This paper presents the simulation of a model of the doubly fed induction generator in the simulation software PSCAD/EMTDC. This model has been used to study flicker during continuous operation and the effect of SCR and grid impedance angle on flicker emission. Simulation results show that compensation of the stator reactive power is an effective method to considerably reduce the flicker levels, irrespective of the grid conditions.

Keywords

References

  1. S. Muller, M. Deicke, and R. W. De Doncker, "Doubly fed induction generator systems for wind turbines: A viable alternative to adjust speed over a wide range at minimal cost," IEEE Ind. Appl. Mag., pp. 26-33, May/June 2002
  2. T. Sun, Z. Chen, and F. Blaabjerg, "Flicker study on variable speed wind turbines with doubly fed induction generators," IEEE Trans. Energy Convers., Vol. 40, No.4, pp. 896-905,2005
  3. PSCAD User's Guide, Manitoba HVDC Research Centre Inc., Winnipeg, MB, 2003
  4. EMTDC User's Guide, Manitoba HVDC Research Centre Inc., Winnipeg, MB, 2003
  5. R. Pena J. C. Clare, and G. M. Asher, "Doubly fed induction generator using back-to-back PWM converters and its application to variable speed wind-energy generation," in Proc. of Inst. Elect. Eng., Elect. Power Appl., Vol. 143, No.3, pp. 231-241, 1996 https://doi.org/10.1049/ip-epa:19960288
  6. A. Gole, Vector controlled doubly fed induction generator for wind applications, University of Manitoba, Unpublished
  7. R. S. Pena, R. J. Cardenas, J. C. Clare, and G. M. Asher, "Control strategies for voltage control of a boost type PWM converter," 32nd Annual Power Electronics Specialists Conference, Vol. 2, pp. 730-735, 2001
  8. B. H. Chowdhury and S. Chellapilla, "Double-fed induction generator control for variable speed wind power generation," Electric Power Systems Research., Vol.76, pp. 786-800, 2006 https://doi.org/10.1016/j.epsr.2005.10.013
  9. J. Arrillaga, N. R. Watson, and S. Chen, Power System Quality Assessment. West Sussex, England: JohnWiley & Sons, 2000
  10. Electromagnetic Compatibility (EMC)-Part 4: Testing and Measurement Techniques-Section 15: Flicker meterFunctional and Design Specifications, IEC Std. 61 000-4-15, Nov. 1997
  11. A. Tapia, G Tapia, J. X. Ostolaza and J. R. Saenz, "Modeling and control of a wind turbine driven doubly fed induction generator," IEEE Trans. Energy Convers., Vol.18, No.2, pp. 194-204, 2003 https://doi.org/10.1109/TEC.2003.811727