公开(公告)号：WO2014037406A1

公开(公告)日：2014-03-13

申请号：PCT/EP2013/068292

申请日：2013-09-04

Applicant: ABB TECHNOLOGY AG

Inventor： MESTER, Akos ,  DUJIC, Drazen ,  BESSELMANN, Thomas

IPC: B60L9/00

CPC classification number: H02M3/33507 ,  B60L9/12 ,  B60L15/2045 ,  B60L2200/26 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2240/526 ,  B60L2240/527 ,  B60L2240/529 ,  H02M7/49 ,  H02M2001/0032 ,  H02M2001/0074 ,  Y02T10/645 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7283

Abstract: A modular converter (10) comprises a plurality of converter cells (36), which are connected in series on a first side and are connected on a second side, wherein each converter cell (36) comprises an AC-to-DC converter (40) connected to the first side and a DC-to-DC converter (42) connected to the second side. A method for controlling the modular converter (10) comprises the steps of: estimating the power transferred by the modular converter (10); comparing the transferred power with a threshold value; when the transferred power is bigger than the threshold value, operating the modular converter in a normal load operation mode (1 16, 122, 128); when the transferred power is smaller than the threshold value, operating the modular converter in a low load operation mode (1 14, 120, 126), in which the converter cells (36) are operated, such that switching losses are reduced with respect to the normal load operation mode.

Abstract translation: 模块化转换器（10）包括多个转换器单元（36），它们在第一侧串联连接并在第二侧连接，其中每个转换器单元（36）包括一个AC-DC转换器（40） ）和连接到第二侧的DC-DC转换器（42）。 一种用于控制模块转换器（10）的方法，包括以下步骤：估计由模块转换器（10）传送的功率; 将传送的功率与阈值进行比较; 当传输功率大于阈值时，以正常负载操作模式（116,162,128）操作模块转换器; 当传送功率小于阈值时，在其中操作转换器单元（36）的低负载操作模式（114,142,126）中操作模块化转换器，使得开关损耗相对于 正常负载运行模式。

公开(公告)号：WO2016009047A1

公开(公告)日：2016-01-21

申请号：PCT/EP2015/066425

申请日：2015-07-17

Applicant: ABB TECHNOLOGY AG

Inventor： CANALES, Francisco ,  KIEFERNDORF, Frederick ,  DUJIC, Drazen

IPC: H02M3/28 ,  H02M3/335 ,  H02J1/10 ,  H02J3/38

CPC classification number: H02J3/382 ,  H02J1/102 ,  H02J3/383 ,  H02J3/386 ,  H02M3/158 ,  H02M3/28 ,  H02M3/285 ,  H02M3/33507 ,  H02M3/33592 ,  Y02B70/1475 ,  Y02E10/763

Abstract: A converter system (14) for interconnecting renewable energy sources (12) with a DC distribution bus (20) comprises a converter unit (18) which comprises an isolated DC-to-DC converter (26) connectable to the renewable energy source (12), and a non-isolated DC-to-DC converter (28) connectable to the DC distribution bus (20), which is cascade connected with the isolated DC-to-DC converter (26).

Abstract translation: 用于将可再生能源（12）与DC分配总线（20）互连的转换器系统（14）包括转换器单元（18），其包括可连接到可再生能源（12）的隔离DC-DC转换器（26） ）和可连接到直流分配总线（20）的非隔离DC-DC转换器（28），其与隔离的DC-DC转换器（26）级联连接。

公开(公告)号：WO2014056742A2

公开(公告)日：2014-04-17

申请号：PCT/EP2013/070264

申请日：2013-09-27

Applicant: ABB TECHNOLOGY AG

Inventor： MESTER, Akos ,  DUJIC, Drazen

IPC: H02M3/335 ,  H02M1/36

CPC classification number: H02M1/36 ,  H02M1/32 ,  H02M3/335 ,  H02M7/49 ,  H02M2001/0074

Abstract: 1. A method for controlling a modular converter (10), the modular converter (10) comprising a plurality of converter cells (12) interconnected in series on a first side (14) and interconnected in parallel on a second side (20); wherein each converter cell (12) comprises a first DC link (32), a DC-to-DC converter (34), and a second DC link (36) connected in cascade; the method comprising the steps of: determining whether a voltage difference between a first DC link (32) and a second DC link (36) of a converter cell (12) is above a predefined threshold value; if the voltage difference is above the predefined threshold value: operating the DC- to-DC converter (34) of the converter cell (12) with a modified pulse width modulation pattern (94) having pulses (96) with a duty cycle smaller than 50%, characterized in that the modular converter (1 0) comprises a central controller (46) and a plurality of local controllers (44), each local controller (44) associated with one of the converter cells (1 2) and adapted for controlling the one converter cell (1 2), wherein the voltage difference is determined based on determining an offline/online status of a local controller (44), and in the case the local controller (44) is offline: delaying the operation of the DC-to-DC converter (34) for a predefined delay time or until the local controller (44) is online, and operating the DC-to-DC converter (34) with the modified pulse width modulation pattern (94) after the delay time.

Abstract translation: 1.一种用于控制模块转换器（10）的方法，所述模块化转换器（10）包括在第一侧（14）上串联互连并在第二侧（20）上并联的多个转换器单元（12）。 其中每个转换器单元（12）包括级联连接的第一DC链路（32），DC-DC转换器（34）和第二DC链路（36） 该方法包括以下步骤：确定转换器单元（12）的第一DC链路（32）和第二DC链路（36）之间的电压差是否高于预定阈值; 如果所述电压差高于所述预定阈值，则以改变的脉冲宽度调制模式（94）操作所述转换器单元（12）的DC-DC转换器（34），所述修改的脉冲宽度调制模式（94）具有占空比小于 50％，其特征在于，所述模块化转换器（110）包括中央控制器（46）和多个本地控制器（44），每个本地控制器（44）与所述转换器单元（112）之一相关联并适于 控制所述一个转换器单元（112），其中，基于确定本地控制器（44）的脱机/在线状态来确定所述电压差，并且在所述本地控制器（44）脱机的情况下：延迟所述 DC到DC转换器（34），用于预定的延迟时间，或者直到本地控制器（44）在线，并且在延迟之后用修改的脉冲宽度调制模式（94）操作DC-DC转换器（34） 时间。

公开(公告)号：WO2014026840A2

公开(公告)日：2014-02-20

申请号：PCT/EP2013/065754

申请日：2013-07-25

Applicant: ABB TECHNOLOGY AG

Inventor： DUJIC, Drazen ,  KIEFERNDORF, Frederick ,  CANALES, Francisco

IPC: H02J1/10 ,  H02J5/00 ,  H02J9/06 ,  H02M3/335 ,  H02M7/219 ,  H02M7/48

CPC classification number: H02J1/102 ,  H02J5/00 ,  H02J9/061 ,  H02M3/33523 ,  H02M7/219 ,  H02M7/4807 ,  H02M7/49 ,  H02M2001/007 ,  H02M2001/0074 ,  H02M2001/325

Abstract: The present invention relates to a power distribution system (1) for supplying electrical power to a plurality of low-voltage DC loads in a data center, comprising: -a galvanically isolated converter arrangement (3) for transforming a medium-voltage AC power provided on an utility line (2) to a low/medium DC voltage provided on a first DC bus (5); and -a plurality of DC loads to be supplied with a low DC voltage generated from the low/medium DC voltage on the first DC bus (5) by means of one or more additional DC/DC converters, characterized in that the converter arrangement (3) has one converter unit (21) per phase, wherein each of the converter units (21) has a plurality of converter cells (22), and wherein each converter cell (22) has an AC/DC converter stage (23, 31) followed by a DC/DC converter stage (24, 32), wherein the DC/DC converter stage (24, 32) has a DC/AC converter and an AC/DC converter coupled to a medium-or high-frequency transformer for galvanic isolation.

Abstract translation: 本发明涉及一种用于向数据中心中的多个低压DC负载供电的配电系统（1），包括： - 电流隔离的转换器装置（3），用于 将在公用线路（2）上提供的中压AC电力转换为在第一DC总线（5）上提供的低/中DC电压; 以及 - 借助于一个或多个额外的DC / DC转换器在所述第一DC总线（5）上由所述低/中DC电压产生的低DC电压供应多个DC负载，其特征在于所述转换器装置（ 3）每相具有一个转换器单元（21），其中每个转换器单元（21）具有多个转换器单元（22），并且其中每个转换器单元（22）具有AC / DC转换器级（23,31 ）之后是DC / DC转换器级（24,32），其中DC / DC转换器级（24,32）具有DC / AC转换器和耦合到中频或高频变压器的AC / DC转换器，用于 电隔离。

公开(公告)号：WO2014037583A3

公开(公告)日：2014-03-13

申请号：PCT/EP2013/068735

申请日：2013-09-10

Applicant: ABB TECHNOLOGY AG

Inventor： KIEFERNDORF, Frederick ,  DUJIC, Drazen ,  CANALES, Francisco

IPC: H02J3/36

Abstract: The present invention relates to a power distribution system (1) for an autonomous facility, such as an offshore platform, having a plurality of loads (7) to be supplied, comprising: - a DC distribution bus for conveying electrical energy to one or more loads, wherein the DC distribution bus is configured to carry a low or medium DC voltage; - a converter for converting generated AC power to DC voltage on the DC distribution bus; and - for at least one of the loads, a galvanically isolated converter to supply one of DC power, single phase AC power or multiple-phase AC power to the load wherein the galvanically isolated converter (6) comprises a medium-frequency transformer (12), which is inherently built inside the structure of the converter (6).

公开(公告)号：WO2014037403A2

公开(公告)日：2014-03-13

申请号：PCT/EP2013/068289

申请日：2013-09-04

Applicant: ABB TECHNOLOGY AG

Inventor： BESSELMANN, Thomas ,  MESTER, Akos ,  DUJIC, Drazen

IPC: H02M3/335 ,  B60L9/08

CPC classification number: B60L3/003 ,  B60L9/12 ,  B60L15/002 ,  B60L2200/26 ,  B60L2210/30 ,  B60L2210/42 ,  B60L2240/526 ,  B60L2240/527 ,  H02M3/33584 ,  Y02T10/645 ,  Y02T10/7241

Abstract: ADC-to-DC converter (42) comprises a DC-to-AC converter (52) and an AC-to-DC converter (56) connected in series with a transformer (54), both the DC-to-AC converter and the AC-to-DC converter comprising semiconductor switches (58, 62). A method for controlling a DC-to-DC converter (42) comprises the steps of: determining a DC input voltage (82) and a DC output voltage (84) of the DC-to-DC-converter (42); determining whether a switching condition (C) based on the DC input voltage (82) and the DC output voltage (84) is fulfilled; and generating a switching signal (98, 100) with switching pulses (140, 142) for switching the semiconductor switches (58, 82) of at least one of the DC-to-AC converter (52) and the AC-to-DC converter (56), wherein the generation of switching pulses (140, 142) is blocked, when the switching condition (C) is not fulfilled.

Abstract translation: ADC转DC转换器（42）包括与变压器（54）串联连接的DC到AC转换器（52）和AC到DC转换器（56），都 所述DC-AC转换器和所述AC-DC转换器包括半导体开关（58,62）。 一种用于控制直流 - 直流转换器（42）的方法，包括以下步骤：确定直流 - 直流转换器（42）的直流输入电压（82）和直流输出电压（84）; 基于直流输入电压（82）和直流输出电压（84）确定是否满足开关条件（C）; 以及用开关脉冲（140,142）产生开关信号（98,100），用于开关DC-AC转换器（52）和AC-DC转换器中的至少一个的半导体开关（58,82） （56），其中当所述切换条件（C）未被满足时切断所述切换脉冲（140,142）的产生。

公开(公告)号：EP2892752A1

公开(公告)日：2015-07-15

申请号：EP13756502.4

申请日：2013-09-04

Applicant: ABB Technology AG

Inventor： MESTER, Akos ,  DUJIC, Drazen ,  BESSELMANN, Thomas

IPC: B60L9/00

Abstract: A modular converter (10) comprises a plurality of converter cells (36), which are connected in series on a first side and are connected on a second side, wherein each converter cell (36) comprises an AC-to-DC converter (40) connected to the first side and a DC-to-DC converter (42) connected to the second side. A method for controlling the modular converter (10) comprises the steps of: estimating the power transferred by the modular converter (10); comparing the transferred power with a threshold value; when the transferred power is bigger than the threshold value, operating the modular converter in a normal load operation mode (116, 122, 128); when the transferred power is smaller than the threshold value, operating the modular converter in a low load operation mode (114, 120, 126), in which the converter cells (36) are operated, such that switching losses are reduced with respect to the normal load operation mode.