Dynamic Behavior of DFIG-Based Wind Turbines during Grid Faults

According to grid codes issued by utilities, tripping of wind turbines following grid faults is not allowed. Besides, to provide voltage support to the grid mandatory reactive current supply is necessary. To enable wind turbines ride-through low voltage periods special protection measures have to be implemented. In this paper the behavior of DFIG based wind turbines during grid faults is discussed and elucidated using simulation results. It is shown that with properly designed crowbar and DC-link chopper even zero voltage ride-through is possible.

[1]  R. Datta,et al.  Decoupled control of active and reactive power for a grid-connected doubly-fed wound rotor induction machine without position sensors , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[2]  R.W. De Doncker,et al.  Adjustable speed generators for wind turbines based on doubly-fed induction machines and 4-quadrant IGBT converters linked to the rotor , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[3]  Z. Krzeminski.  Sensorless multiscalar control of double fed machine for wind power generators , 2002, Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579).

[4]  S. Peresada,et al.  Power control of a doubly fed induction machine via output feedback , 2004 .

[5]  I. Erlich,et al.  Grid code requirements concerning connection and operation of wind turbines in Germany , 2005, IEEE Power Engineering Society General Meeting, 2005.

[6]  I. Erlich,et al.  Advanced grid requirements for the integration of wind turbines into the German transmission system , 2006, 2006 IEEE Power Engineering Society General Meeting.