公开(公告)号：EP2665929A1

公开(公告)日：2013-11-27

申请号：EP12704663.9

申请日：2012-01-20

申请人： Vestas Wind Systems A/S

发明人： LUO, Xue Wen ,  TUMABCAO, Michael Casem ,  PARKHOU, Masoud

IPC分类号： F03D11/00 ,  H02H3/16 ,  H02M1/32 ,  H03D9/00

CPC分类号： G01R31/025 ,  F03D9/255 ,  F03D17/00 ,  F05B2220/7064 ,  F05B2260/80 ,  F05B2270/107 ,  G01R31/42 ,  H02H3/16 ,  H02H3/165 ,  H02H7/06 ,  H02H7/1216 ,  Y02E10/722 ,  Y02E10/725

摘要： A wind turbine fault detection circuit 200 and method is disclosed herein. In a described embodiment, the wind turbine fault detection circuit 200 comprises a magnetometer in the form of a hall-effect sensor 202 coupled between a power converter 108 and a ground element 204 of the power converter 108 and configured to measure a ground current from the power converter to obtain a real ground current Ig; and a comparator 206 configured to determine presence of a fault based on the real ground current Ig.

公开(公告)号：EP2665929B1

公开(公告)日：2017-06-21

申请号：EP12704663.9

申请日：2012-01-20

申请人： Vestas Wind Systems A/S

发明人： LUO, Xue Wen ,  TUMABCAO, Michael Casem ,  PARKHOU, Masoud

IPC分类号： F03D80/00 ,  H02H3/16 ,  F03D17/00

CPC分类号： G01R31/025 ,  F03D9/255 ,  F03D17/00 ,  F05B2220/7064 ,  F05B2260/80 ,  F05B2270/107 ,  G01R31/42 ,  H02H3/16 ,  H02H3/165 ,  H02H7/06 ,  H02H7/1216 ,  Y02E10/722 ,  Y02E10/725