公开(公告)号：EP2871647B1

公开(公告)日：2019-05-22

申请号：EP14003535.3

申请日：2014-10-15

Applicant: ABB Schweiz AG

Inventor： Wunsch, Bernhard ,  Kretschmann, Rainer ,  Schäffer, Ralf ,  Keul, Thomas ,  Drofenik, Uwe

IPC: H01F27/28 ,  H01F27/36

公开(公告)号：EP3410592A1

公开(公告)日：2018-12-05

申请号：EP18175153.8

申请日：2018-05-30

Applicant: ABB Schweiz AG

Inventor： Drofenik, Uwe ,  Brem, Franziska ,  Canales, Francisco

IPC: H02M1/36 ,  H02M1/32 ,  H02M7/483

Abstract: A converter cell (18) for a modular converter (10) comprises at least one power semiconductor switch (34) for switching a cell current through the converter cell (18); a cell capacitor (24) interconnected with the at least one power semiconductor switch (34), such that the cell capacitor (24) is loadable by the cell current; a controller (40) for switching the at least one power semiconductor switch (34), wherein the controller (40) is supplyable with auxiliary power from the cell capacitor (24); and a photovoltaic cell (28) for providing initial and/or further auxiliary power to the controller.

公开(公告)号：EP3648130A1

公开(公告)日：2020-05-06

申请号：EP18203720.0

申请日：2018-10-31

Applicant: ABB Schweiz AG

Inventor： Gradinger, Thomas ,  Drofenik, Uwe

IPC: H01F27/34 ,  H01F41/077

Abstract: A transformer (1) is suggested. The transformer comprises: a first winding (10) arranged around an axis (2), and a second winding (20) arranged around the axis (2), wherein the second winding (20) comprises a litz wire (23) having an end portion (21) located at an axial end position of the second winding (20) and a middle portion (22) located at an axial middle position of the second winding (20), the litz wire (23) having a first cross section at the end portion (21) and a second cross section at the middle portion (22), the first and second cross sections each comprising in a quadrant between the axial outward direction and the direction pointing towards the first winding (10) a curvature extending between the axial outward direction and the direction pointing towards the first winding (10), wherein the curvature of the first cross section is smaller than the curvature of the second cross section thereby reducing the peak magnitude of the electrical field between the end portion (21) of the second winding (20) and the first winding (10).

公开(公告)号：EP3629349A1

公开(公告)日：2020-04-01

申请号：EP18196561.7

申请日：2018-09-25

Applicant: ABB Schweiz AG

Inventor： Gradinger, Thomas ,  Drofenik, Uwe ,  Wunsch, Bernhard

IPC: H01F27/32 ,  H01F27/06 ,  H01F27/29 ,  H01F27/28

Abstract: A transformer (100) includes a transformer core (110) having a first core leg (111) having a first longitudinal axis (11) and second core leg (112) having a second longitudinal axis (12); a first low voltage (LV) winding (121) arranged around the first core leg (111), a first high voltage (HV) winding (131) arranged around the first LV winding (121); a second low voltage (LV) winding (122) arranged around the second core leg (112); and a second high voltage (HV) winding (132) arranged around the second LV winding (122), wherein the first HV winding (131) is provided with a first HV connector (133) and a second HV connector (134) each extending substantially perpendicular away from the first longitudinal axis (11), and wherein the second HV winding (132) is provided with a third HV connector (135) and a fourth HV connector (136) each extending substantially perpendicular away from the second longitudinal axis (12).

公开(公告)号：EP3139392B1

公开(公告)日：2018-11-14

申请号：EP15183787.9

申请日：2015-09-04

Applicant: ABB Schweiz AG

Inventor： Drofenik, Uwe ,  Ortiz, Gabriel ,  Gradinger, Thomas ,  Kearney, Daniel

IPC: H01F27/28 ,  H01F27/34 ,  H01F27/42

CPC classification number: H01F27/2823 ,  H01F27/34 ,  H01F27/42