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公开(公告)号：WO2021219443A1
公开(公告)日：2021-11-04
申请号：PCT/EP2021/060252
申请日：2021-04-20
Applicant: ABB SCHWEIZ AG
Inventor： DROFENIK, Uwe , CANALES, Francisco , PARK, Ki-Bum
Abstract: The invention relates to the field of charging system (10), particularly for electric vehicles and/or for a charging box (60) for the electric vehicles. The charging system (10) comprises a line interphase transformer, LIT-based rectifier (30), configured for connecting an input (31) of the LIT-based rectifier (30) to an AC medium-voltage power signal (11) and for outputting a medium-voltage DC-signal (39); a modular DC/DC converter with large step-down gain (40), configured for transforming the medium- voltage DC-signal (39) into a medium-voltage HF-AC-signal (49); and a medium- frequency transformer, MFT (50), configured for transforming the medium-voltage HF-AC-signal (49) into a low-voltage HF-AC-signal (59) for the at least one charging box (60).
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公开(公告)号：WO2019115701A1
公开(公告)日：2019-06-20
申请号：PCT/EP2018/084777
申请日：2018-12-13
Applicant: ABB SCHWEIZ AG
Inventor： BURKHARD, Johannes , BIELA, Jürgen , DROFENIK, Uwe
IPC: H02M7/493
CPC classification number: H02M7/493
Abstract: An electrical converter (10) comprises at least two phase branches (12A, 12B, 12C, 12N), each phase branch comprising at least two half-bridges (16), which are connected in parallel to a DC link (14) and which are connected via midpoints (18) for providing a phase output (A, B, C, N) for the phase branch. A method for controlling an electrical converter (10) comprises: determining setpoint phase signals (V i,ABC *) for the phase branches from actual phase voltages (V ABC 0 ) and actual phase currents (i L,ABC 0 ), which are determined from measurements, and from reference phase voltages (V dq0 *) for the phase branches (12A, 12B, 12C, 12N); determining a phase duty cycle (d A , d B , d c , d N ) for each phase branch (12A, 12B, 12C, 12N) from the setpoint phase signals (V i,ABC *); determining a half-bridge duty cycle (d Aj , d bj , d cj , d Nj ) for each half-bridge (16) by adding a duty cycle correction (Δd Aj , Δd Bj , Δd Cj , Δd Nj ) for the half-bridge (16) to the phase duty cycle (d A , d B , d C , d N ) for the phase branch (12A, 12B, 12C, 12N) to which the half-bridge (16) belongs, wherein the duty cycle correction is determined from actual half- bridge output currents (i L ,A j 0 , iL,B j 0 , i L ,C j 0 , i L ,N j 0 ) of the half-bridges (16) of the phase branch, which actual half-bridge output currents (i L ,A j 0 , i L ,Bj 0 , i L ,C j 0 , i L ,N j 0 ) are determined from measurements.
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公开(公告)号：WO2022253916A1
公开(公告)日：2022-12-08
申请号：PCT/EP2022/064956
申请日：2022-06-01
Applicant: ABB SCHWEIZ AG
Inventor： DROFENIK, Uwe , GRECKI, Filip
Abstract: A helicoidal guide (140) configured and shaped for cooling an inductor and/or a transformer (100) with a core (120) and a first coil (110) having a spatial gap (130) between the core (120) and the first coil (110), the helicoidal guide (140) being placeable within the spatial gap (130) and configured to guide a flow of coolant through the spatial gap (130), wherein the coolant is in direct contact with the core (120) and/or the first coil (110).
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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
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.
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公开(公告)号：WO2018189170A1
公开(公告)日：2018-10-18
申请号：PCT/EP2018/059148
申请日：2018-04-10
Applicant: ABB SCHWEIZ AG
Inventor： WUNSCH, Bernhard , DROFENIK, Uwe , SKIBIN, Stanislav , RIEDEL, Gernot , FORSSTROM, Ville Samuel
Abstract: A multi-phase inductor (24) comprises a core (34) made of a magnetic material; at least two phase windings (26) surrounding the core (34) for inducing a magnetic field in the core (34), such that a common mode inductance (LCM) is provided for the at least two phase windings (26); and an adjustment member (38) made of a magnetic material, which adjustment member has at least two legs (40), which are interconnected with each other at an inner end (42) and which are touching the core (34) at an outer end (44) to provide a differential mode inductance (LDM) for the at least two phase windings (26); wherein the outer end (44) of each leg (40) of the adjustment member (38) overlays an axial side of the core (34) and/or each leg (40) of the adjustment member (38) has a varying thickness between the inner end (42) and the outer end (44) to adjust the differential mode inductance (LDM).
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Patent Agency Ranking
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。
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7.发明申请
公开(公告)号：WO2022253918A1
公开(公告)日：2022-12-08
申请号：PCT/EP2022/064963
申请日：2022-06-01
Applicant: ABB SCHWEIZ AG
Inventor： DROFENIK, Uwe
Abstract: A transformer arrangement (100) comprising: a plurality (102) of stacked transformers, each transformer (101) including a transformer core (104), a first winding (106) wound around the transformer core, a second winding (108), a spatial gap (110) configured to allow a cooling of the transformer by a coolant fluid flowing in the spatial gap; a support structure (120) supporting the transformers in the plurality of stacked transformers; wherein the support structure (120) and the spatial gaps of the transformers in the plurality of stacked transformers are configured to form a cooling duct (130) for the coolant fluid.
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公开(公告)号：WO2021219362A1
公开(公告)日：2021-11-04
申请号：PCT/EP2021/059531
申请日：2021-04-13
Applicant: ABB SCHWEIZ AG
Inventor： DROFENIK, Uwe , GRADINGER, Thomas Bernhard , CANALES, Francisco , ORTIZ, Gabriel Ignacio , PARK, Ki-Bum , ROTHMUND, Daniel , COSTA, Levy
Abstract: The invention relates to a power supply system (10), particularly for a bidirectional energy flow between a medium-voltage grid (11) and a low-voltage electricity consumer site (60). The system (10) comprises a power feeding system (25), configured for transforming an AC medium-voltage power signal from the medium-voltage grid (11) into a low-voltage power signal (29) for feeding the electricity consumer site (60). Furthermore, it comprises a low-voltage multiphase converter (40), configured for transforming a low-voltage signal (41, 42) into a low-voltage multiphase signal (49), wherein the multiphase converter (40) is arranged antiparallel to the power feeding system (25); and an LV/MV multiphase transformer (50), configured for transforming the low-voltage multiphase signal (49) into an output-signal (59) that is conformant to the AC medium-voltage power signal (11).
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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).
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公开(公告)号：WO2020089228A1
公开(公告)日：2020-05-07
申请号：PCT/EP2019/079529
申请日：2019-10-29
Applicant: ABB SCHWEIZ AG , ABB POWER GRIDS SWITZERLAND AG
Inventor： GRADINGER, Thomas , DROFENIK, Uwe
Abstract: An electrical component is suggested. The component comprises: a ferromagnetic core (10) with a first and a second leg (11, 12); a primary winding (20) with a first primary winding portion (21) arranged around the first leg (11) of the ferromagnetic core and a second primary winding portion (22) arranged around the second leg (12) of the ferromagnetic core; wherein the first primary winding portion (21) and the second primary winding portion (22) each comprise a plurality of parallel connectable conductors (1, 2, 3, 4, 5, 6) arranged around the ferromagnetic core in a cross section with the conductors being radially displaced with respect to each other at radial row positions, wherein the number of conductors (1, 2, 3, 4, 5, 6) of the first primary winding portion (21) is equal the number of conductors (1, 2, 3, 4, 5, 6) of the second primary winding portion (22) and each of the conductors (1, 2, 3, 4, 5, 6) of the first primary winding portion (21) is connected in series with one corresponding conductor (1, 2, 3, 4, 5, 6) of the second primary winding portion (22), whereby a conductor (1, 2, 3, 4, 5, 6) of a radially outer row of the first primary winding portion (21) is connected in series with a conductor (1, 2, 3, 4, 5, 6) of a radially inner row of the second primary winding portion (22), thereby reducing the sum of the magnetic flux between parallel connectable conductors (1, 2, 3, 4, 5, 6) of the first and second primary winding portions (21, 22).
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