公开(公告)号：WO2021053170A1

公开(公告)日：2021-03-25

申请号：PCT/EP2020/076152

申请日：2020-09-18

Applicant: ABB SCHWEIZ AG

Inventor： DROFENIK, Uwe ,  PARK, Ki-Bum ,  GRADINGER, Thomas

IPC: H02M1/00 ,  H02M1/32 ,  H02M3/335 ,  H02M3/337 ,  H02M7/48

Abstract: A resonant DC/DC comprises: a first DC link, preferably comprising a first DC link capacitor; a DC/AC converter comprising a first plurality of N>1 converter bridges connected in parallel to the first DC link; each converter bridge comprising a plurality of switches each of which may be switched between a conducting state and a non-conducting state; an AC intermediate circuit having an input connected to an output of the DC/AC converter and comprising: a transformer, preferably a medium frequency transformer, having a primary side and a secondary side; with the primary side comprising at least one primary winding; a first plurality of N capacitors, wherein for each converter bridge, a different one from the first plurality of capacitors is connected between said converter bridge and the at least one primary winding; a control unit configured to switch semiconductor switches of the inverter bridges between the conducting and the non-conducting state or vice versa with a predetermined first switching frequency to supply an AC current and/or voltage to the AC intermediate circuit; a plurality of N current sensing means, wherein for each inverter bridge a different one of the plurality of current sensing means is provided for monitoring a current through said inverter bridge; wherein the control unit is configured to determine whether a current through one of the inverter bridges deviates from an expected value; and to adapt, in particular increase, the predetermined first switching frequency the current through one of the inverter bridges deviates from the expected value.

公开(公告)号：WO2018150027A1

公开(公告)日：2018-08-23

申请号：PCT/EP2018/054038

申请日：2018-02-19

Applicant: ABB SCHWEIZ AG

Inventor： DONZEL, Lise ,  VELTHUIS, Rudi ,  GRADINGER, Thomas ,  GREUTER, Felix

IPC: H01F27/02

Abstract: A transformer (1) is provided, which comprises a tank (10) having an enclosed volume (11) with an insulating material (13), the tank (10) comprising at least one channel (25) extending through the tank (10), wherein the interior of the at least one channel (25) is separated from the enclosed volume (11) of the tank (10) by a channel wall (17). A transformer core (30) is provided outside of the enclosed volume (11), comprising at least one core leg (32) extending through the tank (10) via the at least one channel (25). At least one coil (50, 52) is located inside the enclosed volume (11), the coil (50, 52) being wound about the at least one channel (25), wherein the tank (10) has an inner wall or outer wall (16) comprising a weakly- conductive layer (40), which comprises fibers (42) embedded in an impregnating material (44).

公开(公告)号：WO2018007514A1

公开(公告)日：2018-01-11

申请号：PCT/EP2017/066919

申请日：2017-07-06

Applicant: ABB SCHWEIZ AG

Inventor： GRADINGER, Thomas ,  ORTIZ, Gabriel ,  DROFENIK, Uwe ,  KEARNEY, Daniel

IPC: H01F27/28

Abstract: A transformer (100), particularly a medium frequency transformer, is described. The transformer (100) includes a transformer core having a core leg with a longitudinal axis (111), and a winding arrangement (120) including a conductor (125) wound around the longitudinal axis (111) of the core leg with a number of turns N t, wherein the conductor (125) includes a group of litz wires which are electrically connected in parallel. The group of litz wires (1, 2, 3, 4, 5, 6) includes a first subgroup of litz wires (1, 2, 3) and a second subgroup of litz wires (4, 5, 6). The winding arrangement (120) includes at least one transposition (160) in which a radial position of the first subgroup of litz wires (1, 2, 3) and a radial position of the second subgroup litz wires (4, 5, 6) are interchanged.

Abstract translation: 描述变压器（100），特别是中频变压器。 变压器（100）包括具有带有纵向轴线（111）的铁芯支脚的变压器铁芯以及包括围绕铁芯支脚的纵向轴线（111）缠绕的导体（125）的绕组布置（120），其中多个 其中导体（125）包括并联电连接的一组绞合线。 绞合线组（1,2,3,4,5,6）包括第一组绞合线（1,2,3）和第二组绞合线（4,5,6）。 绕组装置（120）包括至少一个换位器（160），其中第一组绞线（1,2,3）的径向位置和第二组子绞合导线（4,5,6） 互换。

公开(公告)号：WO2020173899A1

公开(公告)日：2020-09-03

申请号：PCT/EP2020/054828

申请日：2020-02-25

Applicant: AUDI AG ,  ABB SCHWEIZ AG

Inventor： TRAUB, Felix ,  SCHUDERER, Jürgen ,  MOHN, Fabian ,  GRADINGER, Thomas ,  LUI, Chunlei

IPC: H01L23/473

Abstract: An electric power converter device (1) comprises a first power semiconductor module (100) and a frame (20) for a closed cooler. The first power semiconductor module (100) includes a first base plate (30) having a first main side (32), a second main side (33) opposite the first main side and a lateral side surface (34) extending along a circumferential edge of the first base plate (30) and connecting the first and the second main side. The frame (20) is attached to the second main side (33) of the first base plate (20). The first base plate (30) has a first step (35A) on the second main side (33) along the circumferential edge of the first base plate (30) to form a first recess (35) along the circumferential edge of the first base plate (30), in which first recess (35) a first portion (21) of the frame (20) is received.

公开(公告)号：WO2021224016A1

公开(公告)日：2021-11-11

申请号：PCT/EP2021/060555

申请日：2021-04-22

Applicant: ABB SCHWEIZ AG

Inventor： GRADINGER, Thomas ,  LANERYD, Tor

IPC: H05K7/20

Abstract: A subsea power module comprising: a tank having a tank wall (3a) provided with an outwardly protruding corrugation (3b), a power device arranged in the tank, a dielectric liquid (8) which fills the tank (3), for cooling the power device, a pump configured to circulate the dielectric liquid in the tank, wherein the pump has a pump inlet and a pump outlet, a duct (11) arranged in the corrugation (3b) such that a chamber (14) is formed between a tip (3c) of the corrugation (3b) and the duct (11), wherein the duct (11) has a duct inlet connected to the pump outlet, and wherein the duct (11) is provided with at least one duct outlet (11b) opening into the chamber (14), and a distancing structure (15) configured to space apart an outer surface of the duct (11) facing the tank wall (3a) and the tank wall (3a) in the corrugation (3b), whereby gaps are formed between the duct (11) and the tank wall (3a) in the corrugation (3b), enabling dielectric liquid that has been discharged through the at least one duct outlet (11b) into the chamber (14) to be squeezed out from the chamber (14) and the corrugation (3b), and flow towards the pump inlet.

公开(公告)号：WO2021053166A1

公开(公告)日：2021-03-25

申请号：PCT/EP2020/076147

申请日：2020-09-18

Applicant: ABB SCHWEIZ AG

Inventor： DROFENIK, Uwe ,  GRADINGER, Thomas ,  CANALES, Francisco

IPC: H02M1/00 ,  H02M3/335 ,  H02M3/337 ,  H02M1/32 ,  H02M7/48

Abstract: A DC/DC converter comprises a first DC link, preferably a first DC link capacitor; a first plurality of N>1 converter bridges connected in parallel to the first DC link; and a transformer, preferably a medium frequency transformer, having a primary side and a secondary side; wherein the primary side comprising at least one primary winding. In accordance with the invention, the converter further comprises a first plurality of N impedance elements, wherein for each converter bridge, a different one from the first plurality of impedance elements is connected between said converter bridge and the at least one primary winding.

公开(公告)号：WO2020064757A1

公开(公告)日：2020-04-02

申请号：PCT/EP2019/075745

申请日：2019-09-24

Applicant: ABB SCHWEIZ AG

Inventor： DROFENIK, Uwe ,  GRADINGER, Thomas

IPC: H01F27/32 ,  H01F41/12

Abstract: A transformer (100) is described. The transformer (100) includes a transformer core (110) having a core leg having a longitudinal axis (111), a low voltage winding (120) arranged around the core leg, the low voltage winding (120) extending along a first length (Ll) in the direction of the longitudinal axis (111), a high voltage winding (130) arranged around the low voltage winding (120), the high voltage winding (130) extending along a second length (L2) in the direction of the longitudinal axis (111), wherein the second length (L2) is shorter than the first length (Ll), and a casting (140) embedding the low voltage winding (120) and the high voltage winding (130). The casting (140) has a recess (150). The recess (150) is provided at a radial location of the high voltage winding (130) and the recess (150) extends in the direction of the longitudinal axis (111).

公开(公告)号：WO2020064514A1

公开(公告)日：2020-04-02

申请号：PCT/EP2019/075231

申请日：2019-09-19

Applicant: ABB SCHWEIZ AG

Inventor： DROFENIK, Uwe ,  GRADINGER, Thomas ,  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：WO2020178133A1

公开(公告)日：2020-09-10

申请号：PCT/EP2020/055141

申请日：2020-02-27

Applicant: AUDI AG ,  ABB SCHWEIZ AG

Inventor： GRADINGER, Thomas ,  BAUMANN, David ,  LUI, Chunlei ,  TORRESIN, Daniele

IPC: H05K7/20

Abstract: Die vorliegende Erfindung betrifft einen Stromrichter umfassend ein Halbleitermodul (11) und ein Kühlgehäuse (12), wobei das Halbleitermodul (11) einen Halbleiterchip (13), ein Substrat (14) mit einer ersten Seite (15) und einer zweiten Seite (16), eine Grundplatte (17) mit einer ersten Seite (18) und einer zweiten Seite (19) und eine Formmasse (20) umfasst, wobei der Halbleiterchip (13) mit der erste Seite (15) des Substrats (14) verbunden ist, wobei die zweite Seite (16) des Substrats (14) mit der ersten Seite (18) der Grundplatte (17) verbunden ist, wobei die zweite Seite (19) der Grundplatte (17) einen ersten Bereich (21) und einen zweiten Bereich (22) aufweist, wobei der erste Bereich (21) eine Oberflächenerweiterung (23) in Form von Kühlrippen (23) aufweist, wobei der erste Bereich (21) mit der Oberflächenerweiterung (23) in einem Betriebszustand in direktem Kontakt mit einer Kühlflüssigkeit steht, wobei der zweite Bereich (22) einen geschlossen Pfad um den ersten Bereich (21) ausbildet, wobei das Kühlgehäuse (12) eine Platte (24) umfassend zumindest ein Loch aufweist, wobei die Platte (24) um das Loch herum mit dem zweiten Bereich (22) der Grundplatte (17) durch Verschweißen verbunden ist. Des Weiteren betrifft die vorliegende Erfindung ein Verfahren zur Herstellung eines voranstehend beschriebenen Stromrichters.

公开(公告)号：WO2020089329A1

公开(公告)日：2020-05-07

申请号：PCT/EP2019/079719

申请日：2019-10-30

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).