公开(公告)号：US20190309728A1

公开(公告)日：2019-10-10

申请号：US16345419

申请日：2017-10-26

Applicant: MHI Vestas Offshore Wind A/S

Inventor： Tusitha ABEYASEKERA ,  Salvador ANO-VILLALBA ,  Soiedad BERNAL PEREZ ,  Ramon BLASCO-GiMENEZ

IPC: F03D9/25 ,  H02J3/38 ,  F03D7/04

Abstract: Embodiments herein describe operating a control system for a wind turbine in a first mode and second mode of operation. When in the first mode, the wind turbine provides power to a local AC grid. However, when in the second mode, the wind turbine provides power to a high-voltage direct current (HVDC) link. The control system includes a reactive power control leg and an active power control leg. To switch from the first mode to the second mode, the control system activates a PI controller coupled between the reactive and active power control legs which increases the output voltage of the wind turbine until the magnitude of the voltage activates a diode rectifier and permits the power outputted by the wind turbine to be transmitted along the HVDC link.