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Back-to-Back Power Electronic Converter Control for Active Damping

  • Kartonierter Einband
  • 112 Seiten
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One of the most important aspects for large scale integration of wind power systems is the fault ride through (FRT) capability dur... Weiterlesen
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Beschreibung

One of the most important aspects for large scale integration of wind power systems is the fault ride through (FRT) capability during voltage sags. What this means is that wind turbines should be continuously on-line and supply the grid during voltage sags. Large voltage sags induce high voltages in the rotor circuit of the DFIG and thus the rotor current rises and could exceed the current capability of the converter switches. In the instant of such faults, there is usually a power imbalance between the generator and the grid that usually cause the DC-link voltage rise because of the excess power generated that can not be transferred to the grid. Against the use of crowbar to block the converter and then to disconnect the generator from the grid or by reducing the power generated or maximizing the power supplied to the grid, an active damping criterion in the control of the BtB converter is proposed in this book. The phenomenal increase in these quantities together with other disturbances are by this process rejected and/ or damped thereby making the grid less sensitive to harmonics and oscillations. By this, the wind turbine stays on-line and continues to supply the grid.

Autorentext

Cajethan Maduabuchi Nwosu obtained his B.Eng. and M.Eng. degrees in Electrical Engineering from the University of Nigeria, Nsukka in 1994 and 2004 respectively. He is presently working toward the Ph.D degree in Electrical Engineering. He is currently a Senior Lecturer in the Department of Electrical Engineering, University of Nigeria, Nsukka.

Produktinformationen

Titel: Back-to-Back Power Electronic Converter Control for Active Damping
Untertitel: Active Damping Criterion for the Control of Back-to-Back Power Electronic Converter for DFIG Variable Speed Wind Turbine
Autor:
EAN: 9783659138041
ISBN: 3659138045
Format: Kartonierter Einband
Anzahl Seiten: 112
Gewicht: 177g
Größe: H211mm x B149mm x T12mm
Veröffentlichung: 01.06.2012
Jahr: 2012
Auflage: Aufl.

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