Comparison of different control techniques for grid side VSC in terms of losses and current harmonics

Comparison of different control techniques for grid side VSC in terms of losses and current harmonics

More and more wind power plants are built which use voltage source converters (VSC) to feed energy into grid. This paper compares two different control techniques and shows how virtual flux direct power control (VFDPC) reduces filtering requirements at the output of the converter and helps to save u...

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Bibliographische Detailangaben
Hauptverfasser: Schroder, Magdalena, Gierschner, Sidney, Eckel, Hans-Gunter
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Direct power control
Insulated gate bipolar transistors
Power harmonic filters
Switches
Switching frequency
Switching losses
Vectors
Voltage control
Voltage Source Converter (VSC)
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Beschreibung
Zusammenfassung:More and more wind power plants are built which use voltage source converters (VSC) to feed energy into grid. This paper compares two different control techniques and shows how virtual flux direct power control (VFDPC) reduces filtering requirements at the output of the converter and helps to save up to one quarter of converter losses. Furthermore the influence of a reduced, variable dc link voltage of the wind power plant itself and its converter control is discussed.
DOI:10.1109/EPE.2013.6631921