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Reduction of voltage violations at remote location by intelligent active and reactive power control of a DFIG based wind turbine

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3 Author(s)
da Costa, J.P. ; KDEE, Univ. of Kassel, Kassel, Germany ; Zacharias, P. ; Gafaro, F.

This paper presents a Doubly Fed Induction Generator (DFIG) with an intelligent active and reactive power control to support the operation in weak networks. The impact of a 850 kW DFIG based Wind Turbine on the voltage profile of a sample distribution feeder is analyzed. Then, the DFIG power capability is designed to support the grid voltage with reactive power compensation. The grid-side converter works in this case as a shunt Static Synchronous Compensator (STATCOM) even if the WT has not mechanical power available. Three different operation modes are used to reduce the DFIG active and reactive power pulsations due to possible unbalanced voltage problems at point of connection. Simulation results are given to illustrate the performance of grid connected DFIG with proposed intelligent active and reactive power control.

Published in:

Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on

Date of Conference:

Aug. 30 2011-Sept. 1 2011