Title :
Improved DPC method of VSC to fulfill low voltage ride through requirements in wind power applications
Author :
Lohde, Ralf ; Fuchs, Friedrich W.
Author_Institution :
Inst. for Power Electron. & Electr. Drives, Christian-Albrechts-Univ. of Kiel, Kiel, Germany
Abstract :
An analysis and improvement of the direct power control method (DPC) for converter feeding generators in wind power applications under disturbed grid voltages is presented. An improved DPC method is derived and described, and its performance is analyzed as well. This improved DPC permits a robust and dynamic control of active and reactive power even under symmetrical and unsymmetrical voltage sags, unbalanced grid voltages, and voltage harmonics.
Keywords :
power supply quality; reactive power control; robust control; wind power; DPC method; VSC; converter feeding generators; direct power control method; disturbed grid voltages; dynamic control; low voltage ride through; reactive power; robust control; unbalanced grid voltages; voltage harmonics; voltage sags; wind power applications; Converters; Power control; Power harmonic filters; Reactive power; Switches; Voltage control; Voltage fluctuations; converter control; direct power control; power quality; voltage source converter; wind energy;
Conference_Titel :
Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International
Conference_Location :
Ohrid
Print_ISBN :
978-1-4244-7856-9
DOI :
10.1109/EPEPEMC.2010.5606823
