公开(公告)号：EP2907235A1

公开(公告)日：2015-08-19

申请号：EP12886476.6

申请日：2012-10-09

申请人： ABB Research Ltd.

发明人： NUQUI, Reynaldo ,  CHEN, Yao ,  PAN, Jiuping

IPC分类号： H02P9/00

CPC分类号： H02J3/40 ,  H02H7/067 ,  H02P1/029 ,  H02P9/006 ,  H02P9/10 ,  Y10T307/729 ,  Y10T307/735

摘要： Methods, systems, and computer readable media for adaptive out of step protection for power generators with load resynchronization capability are disclosed. According to one method, when a fault condition occurs in a load being supplied by a power generator, a number of pole slips expected to occur in the generator due to the fault before resynchronization is estimated. It is determined whether the estimated number of pole slips exceeds a threshold. An offline or online status of the generator is controlled based on the determination as to whether the estimated number of pole slips exceeds the threshold.

公开(公告)号：EP2438668A2

公开(公告)日：2012-04-11

申请号：EP09849081.6

申请日：2009-06-01

申请人： ABB Research Ltd.

发明人： GERTMAR, Lars ,  KRON, Dennis ,  PAN, Jiupling ,  CHEN, Yao ,  VESEL, Richard, W. ,  BABAEE, Arash, A.

IPC分类号： H02J3/18

CPC分类号： H02J11/00 ,  H02J3/1892 ,  H02J4/00

摘要： It is presented an apparatus for use in an electrical power generation plant. The apparatus comprises: at least two adjustable speed drives, each connected, on an alternating current side, to an associated auxiliary motor; at least one reactive power consuming auxiliary device connected to an alternating current bus; a controller; and a converter for converting alternating current to direct current or vice versa between the alternating current bus and a direct current bus; at least one electrical power source arranged to provide power to the direct current bus; and wherein each of the at least two adjustable speed drive is connected, on a direct current side, to the direct current bus.