公开(公告)号：US12037980B2

公开(公告)日：2024-07-16

申请号：US17775929

申请日：2020-12-15

Applicant: Vestas Wind Systems A/S

Inventor： Siddhesh Gopal Mane ,  Nibedita Sahoo

IPC: F03D13/20 ,  E04H12/34

CPC classification number: F03D13/20 ,  E04H12/342 ,  F05B2230/80 ,  F05D2220/76 ,  F05D2230/80

Abstract: A method of retrofitting a wind turbine having a tower and a first energy generating unit with a second energy generating unit. The method includes analyzing a first natural frequency of the tower relative to first rated operation frequencies of the tower having the second energy generating unit; when the first natural frequency lies within the first rated operation frequencies, modifying one or both the tower and the second energy generating unit so that the modified one or both the tower and the second energy generating unit have a second natural frequency and second rated operation frequencies that do not overlap; and replacing the first energy generating unit with the second energy generating unit.

公开(公告)号：US20220381225A1

公开(公告)日：2022-12-01

申请号：US17775929

申请日：2020-12-15

Applicant: Vestas Wind Systems A/S

Inventor： Siddhesh Gopal Mane ,  Nibedita Sahoo

IPC: F03D13/20 ,  E04H12/34

Abstract: A method of retrofitting a wind turbine having a tower and a first energy generating unit with a second energy generating unit. The method includes analyzing a first natural frequency of the tower relative to first rated operation frequencies of the tower having the second energy generating unit; when the first natural frequency lies within the first rated operation frequencies, modifying one or both the tower and the second energy generating unit so that the modified one or both the tower and the second energy generating unit have a second natural frequency and second rated operation frequencies that do not overlap; and replacing the first energy generating unit with the second energy generating unit.