公开(公告)号：US20220154691A1

公开(公告)日：2022-05-19

申请号：US17521553

申请日：2021-11-08

申请人： Nordex Energy SE & Co. KG ,  Ingenieurbuero Hoffmann GmbH

发明人： Christian Wessels ,  Nils Hoffmann

IPC分类号： F03D7/02 ,  H02J3/38 ,  H02J3/00 ,  H02P9/00 ,  F03D15/00

摘要： This disclosure is directed to a method for operating a wind turbine which includes a speed-variable drive system. The system includes an electrical machine and a pulsewidth modulation-controlled converter. The speed-variable drive system is connected to an electrical grid. In the event of a transient grid fault, a frequency of the pulsewidth modulation is determined in response to a current in an electrical circuit connected to the converter.

公开(公告)号：US12110866B2

公开(公告)日：2024-10-08

申请号：US17521553

申请日：2021-11-08

申请人： Nordex Energy SE & Co. KG ,  Ingenieurbuero Hoffmann GmbH

发明人： Christian Wessels ,  Nils Hoffmann

IPC分类号： F03D7/02 ,  F03D15/00 ,  H02J3/00 ,  H02J3/38 ,  H02P9/00

CPC分类号： F03D7/0284 ,  F03D15/00 ,  H02J3/001 ,  H02J3/381 ,  H02P9/007 ,  F05B2220/706 ,  F05B2270/337 ,  H02J2300/28

摘要： This disclosure is directed to a method for operating a wind turbine which includes a speed-variable drive system. The system includes an electrical machine and a pulsewidth modulation-controlled converter. The speed-variable drive system is connected to an electrical grid. In the event of a transient grid fault, a frequency of the pulsewidth modulation is determined in response to a current in an electrical circuit connected to the converter.