Sizing of Converters Interfacing the Rotor of Wind Driven DFIG to the Power Grid

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DOI: 10.4236/sgre.2011.23034   PDF   HTML   XML   6,619 Downloads   10,713 Views   Citations

Abstract

In this paper, the operation of the Double Fed Induction Generator (DFIG) in the range from synchronous speed down to sub-synchronous speeds is analyzed using the power-flow approach. The objective of this analysis is to determine a ceiling for the rating of the converter interfacing the rotor of the wind driven double fed induction generator (DFIG) to the grid. Sizing the converter is an important issue in determining the economic viability of using the DFIM as a generator at synchronous and sub-synchronous speeds in wind energy conversion systems. The size of the converter is proved to be less than 10% of the rated power of the DFIG, which is 40% to 67% lower than that estimated in previous publications.

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M. Saleh and M. Eskander, "Sizing of Converters Interfacing the Rotor of Wind Driven DFIG to the Power Grid," Smart Grid and Renewable Energy, Vol. 2 No. 3, 2011, pp. 300-304. doi: 10.4236/sgre.2011.23034.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] J. Hu and Y. He, “Reinforced Control and Operation of DFIG-Based Wind Power Generation System under Unbalanced Grid Voltage Conditions,” IEEE Transactions on Energy Conversion, Vol. 24, No. 4, December 2009, pp. 905-915. doi:10.1109/TEC.2008.2001434
[2] D. Saidani, O. Hasnaoui and R. Dhifaoui, “Control of Double Fed Induction Generator for Wind Conversion System,” International Journal of Sciences and Techniques of Automatic Control & Computer Engineering, Vol. 2, No. 2, December 2008, pp. 710-721.
[3] M. A. Saleh and M. N. Eskander, “Sub-Synchronous Range of Operation for a Wind Driven Double-Fed Induction Generator,” Journal of Power Electronics, Vol. 10, No. 1, January 2010.

  
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