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Comparing the Quality of Power Generated from DFIG with Different Types of Rotor Converters

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DOI: 10.4236/jemaa.2012.41004    7,832 Downloads   11,467 Views   Citations

ABSTRACT

In this paper the quality of power generated from wind energy conversion system employing a double fed induction generator (DFIG) is investigated. The DFIG performance is tested with 3 types of converters interfacing the rotor with the grid. These are: the six-step thyristor inverter with diode rectifier, six-step IGBT inverter with diode rectifier, and 3-level IGBT-PWM inverter with diode rectifier. The harmonics in current and voltage, power factor value, and the transient behavior in each system are investigated and compared. Comparison is done at sub-and super-synchronous DFIG operational speed. In the system with lowest power quality passive filters or LC filter are added and improvement in system performance is recorded. From this study the optimum system from point of view of cost and control complexity is concluded.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

M. Nashed and M. Eskander, "Comparing the Quality of Power Generated from DFIG with Different Types of Rotor Converters," Journal of Electromagnetic Analysis and Applications, Vol. 4 No. 1, 2012, pp. 21-29. doi: 10.4236/jemaa.2012.41004.

References

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