公开(公告)号：US11671028B2

公开(公告)日：2023-06-06

申请号：US17627752

申请日：2019-07-19

Applicant: Hitachi Energy Switzerland AG

Inventor： Thomas Schaad ,  Michail Vasiladiotis ,  Jan Svensson ,  Georgios Stamatiou

IPC: H02M5/293 ,  H02M7/483 ,  H02M5/27 ,  H02M5/297

CPC classification number: H02M5/293 ,  H02M5/271 ,  H02M5/297 ,  H02M7/4835

Abstract: An AC-to-AC modular multilevel converter (MMC) is configured to be connected between a three-phase AC system and a single-phase AC system. The MMC includes a number of converter arms connected in a ring to allow a circulating current to be circulated in the ring through each of the converter arms. Each converter arm includes series-connected converter cells. Phase terminals are arranged in the ring between the converter arms such that each of the converter arms is separated from neighboring converter arms by at least one of the phase terminals. The phase terminals include respective terminals for each of a first phase, a second phase and a third phase of the three-phase AC system and respective terminals for each of a positive conductor and a negative conductor of the single-phase AC system.

公开(公告)号：US20180269795A1

公开(公告)日：2018-09-20

申请号：US15976874

申请日：2018-05-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kui Zhou ,  Xijun Zhang ,  Grover Victor Torrico-Bascopé

IPC: H02M3/335 ,  H02M5/27 ,  H02M7/48

CPC classification number: H02M3/33584 ,  H02M1/14 ,  H02M3/285 ,  H02M3/33507 ,  H02M3/33592 ,  H02M5/271 ,  H02M7/4826 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491

Abstract: The present disclosure provide a bidirectional resonant conversion circuit and a converter. The bidirectional resonant conversion circuit includes a primary capacitor, three primary side bridge arms, three three-port resonant cavities, three transformers, three secondary side bridge arms, and a secondary capacitor. A first port of each three-port resonant cavity is connected to a corresponding primary side bridge arm, a second port of each three-port resonant cavity is connected to a ground terminal of a corresponding primary side bridge arm, and a third port of each three-port resonant cavity is connected to a corresponding transformer. Two ends of each secondary side bridge arm are respectively connected to two ends of the secondary capacitor, and each transformer is connected to a corresponding secondary side bridge arm.

公开(公告)号：US20170310217A1

公开(公告)日：2017-10-26

申请号：US15517160

申请日：2015-09-15

Applicant: IDT EUROPE GmbH

Inventor： Chris YOUNG

IPC: H02M3/158 ,  H02M7/49 ,  H02M5/453 ,  H02M5/27 ,  H02P27/16 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M3/1584 ,  H02M5/271 ,  H02M5/453 ,  H02M7/49 ,  H02M2001/0032 ,  H02P27/16 ,  Y02B70/16

Abstract: A multi-phase power converter comprising a plurality of phases for generating an output voltage according to a switching signal and an input voltage, each phase of the plurality of phases comprising a switching element and inductance; wherein the plurality of phases is connected to a common star point, wherein an output capacitor is connected to the common star point. The phases of the multi-phase power converter are not identical in terms of their inductance. Therefore, at least one phase may be optimized for a low current such that, in low power operation, said at least one phase is optimal for lower current levels.

公开(公告)号：US20150249399A1

公开(公告)日：2015-09-03

申请号：US14195152

申请日：2014-03-03

Applicant: The Boeing Company

Inventor： Robert J. Atmur

IPC: H02M5/27 ,  H02P23/00 ,  H02M5/257

CPC classification number: H02M5/271 ,  H02M5/2573 ,  H02M2005/2937 ,  H02P23/00 ,  H02P27/18

Abstract: A power frequency converter and an associated method are provided to convert an AC input signal at a first frequency, such as a first frequency that is permitted to vary within a range, to an AC output signal at a second frequency that is different than the first frequency and that may be fixed. The power frequency converter includes a plurality of power rectification modules. Each power rectification module includes a plurality of power rectification components for receiving different phases of an input signal at a first frequency. Each power rectification module is configured to provide an output signal to a load, such as an induction motor, at a second frequency. The power frequency converter also includes a controller configured to provide control signals to selectively enable the power rectification modules. The controller is configured to provide the control signals without synchronization to the first frequency.

Abstract translation: 提供电力变频器和相关联的方法以将第一频率（例如允许在一定范围内变化的第一频率）的AC输入信号以不同于第一频率的第二频率转换成AC输出信号 频率，可能是固定的。 电力变频器包括多个电力整流模块。 每个电力整流模块包括用于以第一频率接收输入信号的不同相位的多个电力整流部件。 每个功率整流模块被配置为以第二频率向诸如感应电动机的负载提供输出信号。 电力变频器还包括配置成提供控制信号以选择性地启用电力整流模块的控制器。 控制器被配置为提供控制信号而不与第一频率同步。

公开(公告)号：US20130148395A1

公开(公告)日：2013-06-13

申请号：US13705631

申请日：2012-12-05

Applicant: ALSTOM Technology Ltd

Inventor： Joerg Oesterheld ,  Thierry Lecomte ,  René Wilhelm Schaefer

IPC: H02M7/48

CPC classification number: H02M7/48 ,  H02M5/271

Abstract: A converter has converting groups with a first stage connected to input lines thereof and a second stage connected to output lines. The first and second stages have positive and negative branches that are connected together.

Abstract translation: A转换器具有连接到其输入线的第一级的转换组和连接到输出线的第二级。 第一和第二阶段具有连接在一起的正分支和负分支。

公开(公告)号：US08169179B2

公开(公告)日：2012-05-01

申请号：US11843268

申请日：2007-08-22

Applicant: Ned Mohan ,  Krushna K. Mohapatra

Inventor： Ned Mohan ,  Krushna K. Mohapatra

IPC: H02P27/04

CPC classification number: H02M5/271 ,  H02M7/53873 ,  H02M2007/53876

Abstract: An AC machine control system for an AC machine (motor, generator, transformer, etc.) having open-ended windings, the control system comprising a drive circuit configured to transfer AC power between a first set of voltages and each end of the open-ended windings without the use of a substantial energy storage device, while eliminating common mode voltage and/or injecting zero sequence voltages.

Abstract translation: 一种用于具有开放式绕组的交流电机（电动机，发电机，变压器等）的交流电机控制系统，所述控制系统包括驱动电路，所述驱动电路被配置为在第一组电压之间传递AC电力， 而不使用大量的能量存储装置，同时消除共模电压和/或注入零序电压。

公开(公告)号：US20120020021A1

公开(公告)日：2012-01-26

申请号：US13187477

申请日：2011-07-20

Applicant: Kazutaka Kishimoto ,  Makoto Kojyo ,  Takahiro Uchino

Inventor： Kazutaka Kishimoto ,  Makoto Kojyo ,  Takahiro Uchino

IPC: H05K7/20

CPC classification number: H02M7/003 ,  H02M5/271 ,  Y10T307/50 ,  Y10T307/832

Abstract: A matrix converter includes first to third AC reactors connected in series with first- to third-phase outputs of three-phase AC electric power, and a first cooling fan that generates cool air for cooling the first to third AC reactors. The first to third AC reactors are arranged side-by-side in a direction intersecting a direction in which the cool air flows.

Abstract translation: 矩阵转换器包括与三相AC电力的一相到三相输出串联连接的第一至第三AC电抗器和产生用于冷却第一至第三AC电抗器的冷空气的第一冷却风扇。 第一至第三交流电抗器沿与冷气流动的方向相交的方向并排排列。

公开(公告)号：US20110075465A1

公开(公告)日：2011-03-31

申请号：US12889717

申请日：2010-09-24

Applicant: Manfred WINKELNKEMPER ,  Arthur Korn

Inventor： Manfred WINKELNKEMPER ,  Arthur Korn

IPC: H02M5/00

CPC classification number: H02M5/271 ,  H02M5/297 ,  H02M2007/4835

Abstract: A direct converter includes n input phase connections and p output phase connections, where n≧2 and p≧2. The direct converter also includes (n·p) two-pole switching cells for switching at least one positive voltage and at least one negative voltage between the poles. Each output phase connection is connected in series with each input phase connection, respectively, via a switching cell. To enable any desired and continuous current flow setting from an input phase connection to an output phase connection of the direct converter and, moreover, to exchange electrical energy between the two-pole switching cells of the direct converter, at least one inductance is connected into each series connection. A system including a direct converter is also provided.

Abstract translation: 直接转换器包括n个输入相位连接和p个输出相位连接，其中n≥2且p≥2。 直接转换器还包括用于在极之间切换至少一个正电压和至少一个负电压的（n·p）双极开关单元。 每个输出相位连接通过开关单元分别与每个输入相位连接串联连接。 为了实现从直接转换器的输入相位连接到输出相位连接的任何期望的和连续的电流流动设置，此外，为了在直接转换器的两极开关单元之间交换电能，至少一个电感被连接到 每个串联连接。 还提供了包括直接转换器的系统。

公开(公告)号：US07606052B2

公开(公告)日：2009-10-20

申请号：US10534250

申请日：2003-03-14

Applicant: Hirofumi Akagi

Inventor： Hirofumi Akagi

IPC: H02M1/12

CPC classification number: H02M1/12 ,  H02M1/126 ,  H02M5/10 ,  H02M5/271 ,  H02M5/4505 ,  H02M2001/123

Abstract: A filter device that suppresses electromagnetic interference generated in an alternating current circuit connected to a power converter with an alternating current output includes: a common mode choke connected to between any one terminal at an input side, an output side, or a direct current link of the power converter and input terminals of the alternating current circuit; and a connecting element that connects an outgoing line from a neutral point of the alternating current circuit to a reference potential point having little potential variation at an upstream of the common mode choke.

Abstract translation: 抑制与交流电输出的功率转换器连接的交流电路中产生的电磁干扰的滤波装置包括：连接在输入侧，输出侧或直流连接的任意一个端子之间的共模扼流圈 交流电路的功率转换器和输入端; 以及将来自交流电路的中性点的输出线连接到在共模扼流圈的上游具有很小电位变化的基准电位点的连接元件。

公开(公告)号：US07402983B2

公开(公告)日：2008-07-22

申请号：US11348919

申请日：2006-02-06

Applicant: Wells Case Jacobson, Jr. ,  Mark Holveck

Inventor： Wells Case Jacobson, Jr. ,  Mark Holveck

IPC: G05F1/70 ,  H02M1/12

CPC classification number: H02M5/271 ,  H02M7/4826

Abstract: A method for controlling a switching power converter which includes a central capacitor exchanges charge between the capacitor and plural nodes of a first terminal, and then transfers the charge between the capacitor and plural nodes of a second terminal. The charge interchanged between the capacitor and the nodes establishes the amount of power transferred during each cycle. The charge which is interchanged is controlled by selecting the electrical phase between the currents drawn from the nodes and the voltages at the nodes.

Abstract translation: 一种用于控制包括中心电容器的开关功率转换器的方法，在电容器和第一端子的多个节点之间交换电荷，然后在电容器和第二端子的多个节点之间传送电荷。 在电容器和节点之间交换的电荷建立了在每个周期期间传输的功率量。 通过选择从节点引出的电流与节点处的电压之间的电相位来控制互换的电荷。