公开(公告)号：US20220224145A1

公开(公告)日：2022-07-14

申请号：US17611836

申请日：2020-05-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Morten Bagger SØGAARD ,  Niels Erik DANIELSEN ,  Alun JONES ,  Carsten Lindgaard JENSEN

IPC: H02J9/06 ,  H02J1/10 ,  F03D9/11 ,  F03D7/02

Abstract: The present invention relates to a wind turbine comprising an internal power supply grid for distributing power to a number of power consuming units of the wind turbine, the wind turbine further comprising a power backup system connected to the internal power supply grid for supplying power to said internal power supply grid during a grid fault, wherein the power backup system comprises a power storage module providing a total backup voltage that falls within a nominal voltage range of the internal power supply grid of the wind turbine.