公开(公告)号：EP3872975A1

公开(公告)日：2021-09-01

申请号：EP20159794.5

申请日：2020-02-27

Applicant: ABB Schweiz AG

Inventor： Park, Ki-Bum ,  Schweizer, Mario ,  Pettersson, Sami

IPC: H02M7/483 ,  H02M7/487 ,  H02M1/32 ,  H02M1/36 ,  H02M1/00

Abstract: A flying capacitor multilevel converter having active neutral-point-clamped topology with an output LCL-filter, wherein the converter comprises an overcurrent mode controller. The overcurrent mode controller is adapted to receive a converter current reference and measured converter current, to form an overcurrent band having an upper and a lower value, the upper value being higher than the converter current reference and the lower value being lower than the converter current reference, and to block gate control signals when the measured converter current is positive and higher than the upper value or when the measured converter current is negative and lower than the lower value.

公开(公告)号：EP3787166A1

公开(公告)日：2021-03-03

申请号：EP19194929.6

申请日：2019-09-02

Applicant: ABB Schweiz AG

Inventor： Pettersson, Sami ,  Schweizer, Mario ,  Park, Ki-Bum ,  Canales, Francisco

IPC: H02M1/32 ,  H02M7/487 ,  H02M7/483 ,  H02M1/00

Abstract: A protection circuit for a power converter with cascaded bipolar and/or unipolar semiconductors is provided.
The protection circuit comprises at least one comparator circuit which is adapted to monitor a voltage characteristic on a collector-emitter path of at least one semiconductor which is arranged in a polarity selection stage of the power converter and/or to monitor a voltage characteristic on at least one capacitor, which is arranged in the power converter.
The at least one comparator circuit is further adapted to output an electrical signal, representing the voltage characteristic of the semiconductor and/or the at least one capacitor to at least one evaluation unit. The at least one evaluation unit is further adapted to evaluate the result from the at least one comparator circuit and to deactivate the semiconductors in case that the voltage characteristic of the semiconductors and/or the capacitors deviate from a predetermined threshold.

公开(公告)号：EP3876409A1

公开(公告)日：2021-09-08

申请号：EP20161242.1

申请日：2020-03-05

Applicant: ABB Schweiz AG

Inventor： Christen, Daniel ,  Schweizer, Mario ,  Bishnoi, Hemant ,  Pettersson, Sami

IPC: H02M7/00 ,  H02M7/483 ,  H02M1/088 ,  H02M7/493

Abstract: The invention relates to a flying capacitor switching cell-system (1), comprising at least two flying capacitor switching cells (2), wherein each of the cells (2) comprises an arrangement of at least one semiconductor system, wherein the cells (2) are in parallel in an electrical circuit (3).
The invention also relates to a converter system comprising the flying capacitor switching cell-system (1).

公开(公告)号：EP2590291B1

公开(公告)日：2019-09-04

申请号：EP11187790.8

申请日：2011-11-04

Applicant: ABB Schweiz AG

Inventor： Escobar, Gerardo ,  Pettersson, Sami ,  Serpa, Leonardo-Augusto ,  Ho, Ngai-Man ,  Coccia, Antonio ,  Oudalov, Alexandre ,  Timbus, Adrian

IPC: H02J3/38

公开(公告)号：EP3872971A1

公开(公告)日：2021-09-01

申请号：EP20159781.2

申请日：2020-02-27

Applicant: ABB Schweiz AG

Inventor： Park, Ki-Bum ,  Pettersson, Sami

IPC: H02M1/32 ,  H02M7/5387 ,  H02M1/12

Abstract: A three-phase voltage source converter with an output LCL filter, the converter comprising a current controller, which is adapted to receive for each phase a current reference i*, LCL filter capacitor voltage reference v f *, measured output current i and measured LCL filter capacitor voltage v f . The current controller comprises a predictive peak current controller and a current reference generator, wherein the current reference generator is adapted to produce a modified current reference i** which is fed to the predictive peak current controller. The predictive peak current controller comprises a reference corrector adapted to form a peak current reference i*** and a peak current controller, the peak current controller being adapted to produce a gate signal for controlling the switches of the converter based on the predicted slope compensation for the next switching cycle, a clock signal, the peak current reference i*** and the measured output current.