Novel Energisation Method for Offshore Wind Farms Connected to HVdc via
Recently put forward as a feasible alternative for connecting OWFs to
HVdc networks, diode rectifiers (DRs) have elicited growing interest
from both academia and industry. Energisation of such OWFs is, however,
not straightforward. The present study constitutes a proof of concept
for the application of a novel energisation method to the case of an OWF
connected to HVdc via DRs. The proposed method provides a robust and
reliable alternative with minimal additional hardware, i.e. short
additional dc cables connecting the dc bus bar of the energising WT to
the HVdc link, and corresponding dc disconnectors at the cable terminals
and at the DR dc terminals. This can be easily extended to more WTs in
the OWF, increasing reliability by providing redundancy. The simulation
results indicate that the proposed method is a suitable alternative for
energising OWFs connected to HVdc via DRs.
manuscript has been accepted for presentation in the 45th Annual
Conference of the IEEE Industrial Electronics Society (IECON 2019).