Droop Control Strategy for Voltage Source Converters Containing Renewable Power Sources
Pesce, Cristian
- 1
- 2Universidad de Concepcion
- 3Universitat Politècnica de València
- 4Pontificia Universidad Católica de Valparaíso
- 5Universidad de la Frontera
Journal
Lecture Notes in Electrical Engineering
ISSN
1876-1119
1876-1100
Open Access
closed
Volume
604
Start page
299
End page
311
This paper presents a strategy to control the active and reactive power in the point of common connection (PCC) of a wind generation system operating in islanded mode. A full back-to-back voltage source converter (VSC) is connected between each wind generator and the PCC. The control scheme considers voltage and frequency regulation for each VSC. The voltage and frequency references are obtained from P-V and Q-f droop characteristics of the generators, where Q and P are the reactive and active power supplied by each VSC to the PCC. Proportional-integral (PI) controllers process the voltage and frequency errors and set reference currents (in d-q frame) to be imposed by the converter. The strategy has been validated by mean of simulations, and results are presented showing the performance of the control strategy proposed.