公开(公告)号：EP4451530A1

公开(公告)日：2024-10-23

申请号：EP23168626.2

申请日：2023-04-19

Applicant: ABB SCHWEIZ AG

Inventor： SCHWEIZER, Mario ,  KIEFERNDORF, Frederick ,  TSOUMAS, Ioannis

IPC: H02M1/00 ,  H02M1/32 ,  H02M7/487 ,  H02M7/49 ,  H02M7/5395 ,  H02M1/12

Abstract: An electrical converter (10) and a method for controlling the electrical converter (10) are provided. The electrical converter (10) comprises: a main stage (12), with the main stage (12) being configured for converting a DC voltage into a three phase intermediate voltage and having three main outputs (24), one for each phase of the intermediate voltage; a filter cell stage (14) having three filter cells (30a, 30b, 30c) with each filter cell (30a, 30b, 30c) being coupled to a corresponding one of the three main outputs (24) and being configured for modifying the corresponding phase of the intermediate voltage; and three bypass switches (39) for bypassing the filter cells (30a, 30b, 30c), with each of the three bypass switches (39) being electrically coupled to a corresponding one of the three main outputs (24) and to a converter output (16) of the electrical converter (10), wherein the converter output (16) is coupled to the three filter cells (30a, 30b, 30c) and is configured for providing a three phase output voltage of the electrical converter (10). The method for controlling the electrical converter (10) comprises the steps of: determining a main stage pulse pattern (60) for the main stage (12), wherein the main stage pulse pattern (60) is determined depending on a voltage reference signal (V ref,abc ) for the output voltage and wherein the main stage pulse pattern (60) comprises switching instants for the main stage (12) over a next modulation period of the main stage (12); determining a cell pulse pattern for the filter cell stage (14), wherein the cell pulse pattern is determined from a cell output voltage reference signal (64), which is determined from the voltage reference signal (V ref,abc ) and a main stage voltage signal (62) determined from the main stage pulse pattern (60), and wherein the cell pulse pattern comprises switching instants for the three filter cells (30a, 30b, 30c) over the next modulation period; applying at least a next switching instant determined from the main stage pulse pattern (60) and the cell pulse pattern to the electrical converter (10), when all of the filter cells (30a, 30b, 30c) are working properly; applying at least a next switching instant determined from the main stage pulse pattern (60) and a modified cell pulse pattern (70) to the electrical converter (10), when one of the filter cells (30a, 30b, 30c) fails, wherein the failed filter cell (30a) is bypassed by activating the corresponding bypass switch (39), the modified cell pulse pattern (70) is determined under the assumption that a cell voltage provided by the failed filter cell (30a) is zero, and the intermediate voltage is modified by the two remaining filter cells (30b, 30c) depending on the modified cell pulse pattern (70) in order to provide the output voltage of the electrical converter (10).

公开(公告)号：EP4106174A1

公开(公告)日：2022-12-21

申请号：EP21180063.6

申请日：2021-06-17

Applicant: ABB Schweiz AG

Inventor： SCHWEIZER, Mario ,  FURLAN, Ivan ,  NOTARI, Nicola

IPC: H02M5/458 ,  H02M1/00 ,  H02M1/08 ,  H02M7/539 ,  H02M7/217 ,  H02M1/04 ,  H02M1/10 ,  H02M1/12

Abstract: The invention relates to a converter system (100) comprising a rectifier (106) that is configured to receive a grid voltage, a DC link stage (108) that is configured to receive an output voltage of the rectifier (106) and to provide a DC link voltage for an inverter (110), and the inverter (110) that is configured to receive the DC link voltage from the DC link stage (108) and to generate an output voltage. The rectifier (106), the DC link stage (108) and the inverter (110) are connected in series. The converter system (100) comprises further a control unit (200) with a slow reference frame angle determination unit (202) that is configured to generate a slow reference frame angle θ r,slow representing an angle that is slowly following a grid phase deviation, and with a fast Phase Locked Loop (PLL 208) that is configured to generate a fast reference frame angle θ r,fast representing an angle that is fast following a grid phase deviation. The control unit (200) is further configured to use the slow reference frame angle θ r,slow and the fast reference frame angle θ r,fast to control the rectifier output current, and to use the fast reference frame angle θ r,fast to control the inverter output voltage and to synchronize the inverter output voltage with the grid voltage.

公开(公告)号：EP4085519A1

公开(公告)日：2022-11-09

申请号：EP20824574.6

申请日：2020-12-17

Applicant: ABB SCHWEIZ AG

Inventor： TSOUMAS, Ioannis ,  GEYER, Tobias ,  SCHWEIZER, Mario ,  ROHR, Eduardo ,  KIEFERNDORF, Frederick ,  VAN-DER-MERWE, Wim ,  VETTERLI, Manuel ,  MEIER, Christian

IPC: H02M1/15 ,  H02M7/487 ,  H02M7/49 ,  H02M1/12 ,  H02M1/00

公开(公告)号：EP3968484A1

公开(公告)日：2022-03-16

申请号：EP20195279.3

申请日：2020-09-09

Applicant: ABB Schweiz AG ,  Hitachi Energy Switzerland AG

Inventor： ALMER, Stefan ,  SCHWEIZER, Mario

IPC: H02J3/38 ,  H02J3/48

Abstract: The present invention relates to a method for controlling an electrical converter for use in an AC power grid, the method comprising: calculating a rotation angle of a voltage waveform of an AC output voltage of the converter based on an active power of the converter, a reference active power of the converter and a frequency deviation of the voltage of the AC power grid from a nominal grid frequency of the AC power grid; and controlling the electrical converter to output an AC output voltage having the calculated rotation angle. The present invention also relates to a respective apparatus for controlling an electrical converter for use in an AC power grid.

公开(公告)号：EP3329585B1

公开(公告)日：2019-09-04

申请号：EP16741322.8

申请日：2016-07-21

Applicant: ABB Schweiz AG

Inventor： SCHWEIZER, Mario ,  STEIMER, Peter ,  DIJKHUIZEN, Frans

IPC: H02M7/487

公开(公告)号：EP3329585A1

公开(公告)日：2018-06-06

申请号：EP16741322.8

申请日：2016-07-21

Applicant: ABB Schweiz AG

Inventor： SCHWEIZER, Mario ,  STEIMER, Peter ,  DIJKHUIZEN, Frans

IPC: H02M7/487

CPC classification number: H02M7/487 ,  H02M2007/4835

Abstract: A modular multi-level converter (10) for converting a DC voltage into an AC voltage comprises a first row (14) and a second row (18) of converter cells (16, 20), each converter cell (16, 20) comprising a cell capacitor (Ccell, Ccell') and semiconductor switches (34, 36, 34', 36') adapted for connecting the cell capacitor to an output of the converter cell (16, 20) and for bypassing the cell capacitor. The first row (14) of converter cells (16) interconnects a positive DC link connection point (22a) and a negative DC link connection point (22c), wherein the first row (14) of converter cells (16) comprises an upper pair and a lower pair of series-connected strings (24a, 24b, 24c, 24d) of series-connected converter cells (16), wherein the upper pair of strings (24a, 24b) connects the positive DC link connection point (22a) with a neutral DC link connection point (22b) and provides an upper intermediate connection point (26a) between the strings (24a, 24b) and the lower pair of strings (24c, 24d) connects the negative DC link connection point (22c) with the neutral DC link connection point (22b) and provides a lower intermediate connection point (26b) between the strings (24c, 24d). The second row (18) of converter cells (20) comprises a pair of strings (28a, 28b) of series-connected converter cells (20) interconnecting the upper intermediate connection point (26a) and the lower intermediate connection point (26b) and provides an AC connection point between the strings (28a, 28b). The converter cells (16) of the first row (14) have a first cell capacity (Ccell') and the converter cells (20) of the second row (18) have a second cell capacity (Ccell) higher than the first cell capacity (Ccell'). The converter cells (16) of the first row (14) have a capacitor switch (36'), which interconnects the cell capacitor (Ccell') with the outputs (38) and which has a lower current rating than a main switch (34') of the converter cells (16) of the first row (14) connected in parallel to the cell capacitor (Ccell'). The converter cells (20) of the second row (18) have a capacitor switch (36) and the current rating of the capacitor switch (36') of a converter cell (16) of the first row (14) is smaller than a current rating of the capacitor switch (36) of a converter cell (20) of the second row (18).

公开(公告)号：EP4277109A1

公开(公告)日：2023-11-15

申请号：EP22172910.6

申请日：2022-05-12

Applicant: ABB SCHWEIZ AG

Inventor： SCHWEIZER, Mario ,  KIEFERNDORF, Frederick

IPC: H02M7/483 ,  H02M7/49 ,  H02M1/12 ,  H02M1/00 ,  H02J3/18

Abstract: An electrical converter (10) comprises a main stage (12) adapted for converting a DC voltage into an intermediate voltage comprising at least two voltage levels and a filter cell stage (14) with a filter cell (30) for each phase of the intermediate voltage, each filter cell (30) being adapted for adding or subtracting a cell voltage of the filter cell (30) to the intermediate voltage. A method for controlling an electrical converter (10) comprises a pattern determination part (44) comprising the steps of: determining a main pulse pattern (60) for the main stage (12) with pulse width modulation, wherein the main pulse pattern (60) is determined from a voltage reference signal (V ref,abc ) for the output voltage and wherein the main pulse pattern (60) comprises switching instants for the main stage (12) over a next modulation period of the main stage (12); and determining a cell pulse pattern (70) for the filter cell stage (14) with pulse width modulation, wherein the cell pulse pattern (70) is determined from a difference of the voltage reference signal (V ref,abc ) and a main stage voltage signal (62) determined from the main pulse pattern (60) and wherein the cell pulse pattern (70) comprises switching instants for the filter cells (30) over the next modulation period. The method comprises further a model predictive control part (46) comprising the following steps, which are performed several times during the next modulation period: modifying the main pulse pattern (60) and the cell pulse pattern (70) by moving at least one transition time of a switching instant, such that a flux error determined from a difference between an estimated flux of the electrical converter and a reference flux trajectory (76) is minimized; and applying at least a next switching instant from the main pulse pattern (60) and the cell pulse pattern (70) to the electrical converter (10).

公开(公告)号：EP3465905A1

公开(公告)日：2019-04-10

申请号：EP17807484.5

申请日：2017-06-01

Applicant: ABB Schweiz AG ,  Pan, Zhiguo ,  Shrestha, Ghanshyam

Inventor： PAN, Zhiguo ,  SHRESTHA, Ghanshyam ,  SCHWEIZER, Mario

IPC: H02P25/22

公开(公告)号：EP3236572A1

公开(公告)日：2017-10-25

申请号：EP17166987.2

申请日：2017-04-19

Applicant: ABB Schweiz AG

Inventor： SCHWEIZER, Mario ,  Steimer, Peter ,  Vemulapati, Umamaheswara

IPC: H02M1/34 ,  H03K17/081 ,  H03K17/0814

CPC classification number: H03K17/08146 ,  H02M2001/342 ,  H02M2001/344 ,  H02M2007/4835 ,  H03K17/08108 ,  H03K17/08116 ,  H03K17/08148 ,  Y02B70/1491

Abstract: Eine Leistungselektronische Schaltzelle umfasst einen ersten ansteuerbaren bidirektionalen Leistungshalbleiterschalter (1) mit gesteuerter unidirektionaler Stromführungsrichtung, und mit einem Stromanstiegsbegrenzungsnetzwerk (4), wobei der erste Leistungshalbleiterschalter (1) eine erste Diode (3) aufweist, die antiparallel zur gesteuerten unidirektionalen Stromführungsrichtung des ersten Leistungshalbleiter-schalters (1) angeordnet ist, wobei das Stromanstiegsbegrenzungsnetzwerk (4) parallel zu dem ersten Leistungshalbleiterschalter (1) geschaltet ist, wobei das Stromanstiegsbegrenzungsnetzwerk (4) eine Serienschaltung aus einem zweiten ansteuerbaren bidirektionalen Leistungshalbleiterschalter (6) mit gesteuerter unidirektionaler Stromführungsrichtung, einem Widerstand (7) und einer Kapazität (8) aufweist, wobei der zweite Leistungshalbleiterschalter (6) eine zweite Diode (10) aufweist, die anti-parallel zur gesteuerten unidirektionalen Stromführungsrichtung des zweiten Leistungshalbleiterschalters (6) angeordnet ist, wobei der zweite Leistungshalbleiterschalter (6) antiparallel zu dem ersten Leistungshalbleiterschalter (1) angeordnet ist, so dass die gesteuerte unidirektionale Stromführungsrichtung des ersten Leistungshalbleiterschalters (1) entgegengesetzt zu der gesteuerten unidirektionale Stromführungsrichtung des zweiten Leistungshalbleiterschalters (6) verläuft.

Abstract translation: 的功率电子开关单元包括（1）具有第一二极管（1）具有受控的单向通电方向，并用一个电流上升限制网络（4），其中，所述第一功率半导体开关的第一可控双向功率半导体开关（3），反并联的单向控制的电流承载所述第一功率半导体的方向 设置开关（1），其中，所述电流上升限制网络（4）被并联连接到所述第一功率半导体开关（1），其中，所述电流上升限制网络（4）的串联电路，其包括第二可控双向功率半导体开关（6）具有受控的单向通电方向，电阻器（7 有）和一个电容（8），其中，所述第二功率半导体开关（6）包括第二二极管（10），所述平行的反到第二电源的受控的单向通电方向 被布置shalbleiterschalters（6），其特征在于，（6）被布置成反平行于所述第一功率半导体开关的第二功率半导体开关（1），从而使控制单向通电的第一功率半导体开关的方向（1）相反的第二半导体功率开关的控制的单向通电方向（6）延伸 ，

公开(公告)号：EP4344036A1

公开(公告)日：2024-03-27

申请号：EP22196760.7

申请日：2022-09-21

Applicant: ABB SCHWEIZ AG

Inventor： SCHWEIZER, Mario ,  KIEFERNDORF, Frederick ,  VETTERLI, Manuel

IPC: H02M1/00 ,  H02M1/36 ,  H02M7/483 ,  H02M7/487 ,  H02M1/12

Abstract: An electrical converter (10) comprises a main stage (12) adapted for converting a DC voltage into an intermediate voltage comprising at least two voltage levels, a filter cell stage (14) with a filter cell (30) for each phase of the intermediate voltage, each filter cell (30) being adapted for adding or subtracting a cell voltage of the filter cell (30) to the intermediate voltage, and a pre-charge circuit (44) adapted for pre-charging the filter cells (30) and a DC link (20) of the main stage (12) and comprising an auxiliary power source (46) connected between one phase of an output (34) of the electrical converter (10) and a neutral point (NP) of said DC link (20) of the main stage (12), wherein all phases of the output (34) of the electrical converter (10) are connected via an electrical load (16). A method for pre-charging filter cells (30) during a start-up of an electrical converter (10) comprises a pre-charging of the filter cells (30) comprising the steps of: switching the main stage (12) such that all phases of the output (24) of the main stage (12) are directly connected to the neutral point (NP) of the DC link (20) of the main stage (12); switching at least one of the filter cells (30) into a rectifying state, in which a rectified current flows through a cell capacitor (38) of this filter cell (30); and switching the pre-charge circuit (44) on and charging the cell capacitor (38) of said at least one filter cell (30) by the pre-charge circuit (44), until a nominal cell voltage is achieved at the cell capacitor (38) of this filter cell (30).