公开(公告)号：US10199970B2

公开(公告)日：2019-02-05

申请号：US15563754

申请日：2016-03-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Gert Karmisholt Andersen ,  Leif Svinth Christensen ,  Ciprian Biris ,  Uffe C. Merrild

IPC: H02P9/00 ,  H02P9/04 ,  H02P9/10

Abstract: The present invention relates to a method for operating a doubly fed induction generator wind power facility during an OVRT event, said the wind turbine facility being adapted to inject active and/or reactive current into an associated grid, the method comprising the steps of determining the occurrence of an over voltage grid event, and maintaining a grid-side inverter of the doubly fed induction generator wind power facility fully operable during the over voltage ride though event so as to maintain a controllable active and/or reactive current capability during the over voltage grid event.