THERMAL SCIENCE

International Scientific Journal

Zoran R. Ivanović

,

Marko S. Vekić

,

Stevan U. Grabić

,

Ivan M. Todorović

FAULT RIDE-THROUGH CAPABILITY OF WIND TURBINE CONNECTED TO THE GRID IN CASE OF UNBALANCED VOLTAGES

ABSTRACT
This paper deals with control of wind turbine connected to the grid through the back-to-back converter in case of unbalanced grid voltages. The motivation for this research has been found in recent transmission and distribution grid code, which demand modern wind turbines to stay connected to the grid and supply the highest possible apparent power during the grid disturbances. In order to comply with these requirements we proposed improved dual vector current controller to deal with the unbalance imposed by the electrical grid. Controller provides injection of active and reactive power to the grid, even if the voltages are lower than the nominal one. The results are validated using low power prototype and contemporary hardware-in-the-loop emulation platform. In both cases the controller is based on TMS320F2812 DSP. [Projekat Ministarstva nauke Republike Srbije, br. III 042004 and by the Provincial Secretariat for Science and Technological Development of AP Vojvodina under contract No. 114-451-3508/2013-04]
KEYWORDS
wind turbine, distributed generator, fault ride-through capability, back-to-back converter, hardware-in-the-loop
PAPER SUBMITTED: 2015-09-29
PAPER REVISED: 1970-01-01
PAPER ACCEPTED: 2015-12-31
PUBLISHED ONLINE: 2016-02-20
DOI REFERENCE: https://doi.org/10.2298/TSCI150929033I
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Supplement 2, PAGES [S495 - S512]
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Fault ride-through capability of wind turbine connected to the grid in case of unbalanced voltages

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