公开(公告)号：US11929638B2

公开(公告)日：2024-03-12

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 ,  F03D7/02 ,  F03D9/11 ,  H02J1/10

CPC classification number: H02J9/061 ,  F03D7/0264 ,  F03D9/11 ,  H02J1/106 ,  F05B2270/1071 ,  F05B2270/337

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.