公开(公告)号：CA2320001A1

公开(公告)日：2001-03-20

申请号：CA2320001

申请日：2000-09-20

Applicant: ABB SCHWEIZ AG

Inventor： LINHOFER GERHARD ,  HILLBERG CLAES

IPC: H02J3/26

Abstract: The method according to the invention is fox compensation currents to be produced which have arbitrary phases and/or arbitrary amplitudes. To this end, a compensation unit (5) is proposed which is connected to the polyphase system via a transformer unit (4). The compensation unit (5) in this case comprises at least a switching unit (6) and an energy storage unit (7), which is connected to the transformer unit (4) via the switching unit (6).

公开(公告)号：DE50014033D1

公开(公告)日：2007-03-22

申请号：DE50014033

申请日：2000-09-15

Applicant: ABB SCHWEIZ AG

Inventor： HILLBERG CLAES DR ,  LINHOFER GERHARD

IPC: H02J3/26

Abstract: The load compensation method uses a compensation unit (5) for providing compensation currents of given phase and/or amplitude, using an energy store (7), e.g. a capacitor, which is coupled to the multi-phase electrical energy system via a switching device (6) and a transformer (4). Also included are Independent claims for the following: a load compensation device; an application of a load compensation device for compensating asymmetrical loads in a 3-phase system.

公开(公告)号：DE59805592D1

公开(公告)日：2002-10-24

申请号：DE59805592

申请日：1998-07-30

Applicant: ABB SCHWEIZ AG

Inventor： DAEHLER PETER ,  GAUPP OSVIN ,  LINHOFER GERHARD ,  RAVOT JEAN-FRANCOIS

IPC: H02M7/48 ,  H02M7/49 ,  H02M7/527

Abstract: An invertor having a plurality of invertor bridges which operate in parallel and whose output voltages are summed. The invertor bridges are driven with pulse duration modulation according to an auxiliary control voltage. The auxiliary control voltages of the individual invertor bridges have a constant phase difference between one another. The output voltages of the bridges are summed by a center tap which is grounded by a ground connection. Effective suppression of the common-mode current distortion is achieved by having the switch arranged in the ground connection.

公开(公告)号：AT224609T

公开(公告)日：2002-10-15

申请号：AT98810735

申请日：1998-07-30

Applicant: ABB SCHWEIZ AG

Inventor： DAEHLER PETER ,  GAUPP OSVIN ,  LINHOFER GERHARD ,  RAVOT JEAN-FRANCOIS

IPC: H02M7/48 ,  H02M7/49 ,  H02M7/527

Abstract: An invertor having a plurality of invertor bridges which operate in parallel and whose output voltages are summed. The invertor bridges are driven with pulse duration modulation according to an auxiliary control voltage. The auxiliary control voltages of the individual invertor bridges have a constant phase difference between one another. The output voltages of the bridges are summed by a center tap which is grounded by a ground connection. Effective suppression of the common-mode current distortion is achieved by having the switch arranged in the ground connection.