公开(公告)号：US20180254699A1

公开(公告)日：2018-09-06

申请号：US15756770

申请日：2016-03-07

Applicant: Tokyo Institute of Technology ,  Toshiba-Mitsubishi-Electric Industrial Systems Corporation

Inventor： Hirofumi Akagi ,  Makoto Hagiwara

IPC: H02M3/155 ,  H02M7/48 ,  H02M1/088

CPC classification number: H02M3/155 ,  H02M1/088 ,  H02M1/14 ,  H02M7/48 ,  H02M2007/4835

Abstract: A bidirectional chopper circuit 1 is provided with: a main power converter 11 having a first switch 21-1 and a second switch 21-2 set up so that one switch is turned off when the other switch is turned on and connected in series with each other so as to line up in a conduction direction when turned on, the terminals on both sides of the main power converter 11 on the opposite sides to the connection sides for the first switch 21-1 and the second switch 21-2 being a pair of first external connection terminals; a plurality of single-phase full-bridge power converters 22-j and a pair of second external connection terminals provided on wiring that branches from wiring connecting the first switch 21-1 and the second switch 21-2 so that one or both are connected in cascade; and an inductor 13 connected in series with the single-phase full-bridge power converters 22-j on wiring that branches from wiring connecting the first switch 21-1 and the second switch 21-2.

公开(公告)号：US09496805B2

公开(公告)日：2016-11-15

申请号：US14360251

申请日：2012-11-15

Applicant: Tokyo Institute of Technology

Inventor： Hirofumi Akagi ,  Makoto Hagiwara

IPC: H02M7/483 ,  H02M7/797 ,  H02M7/497 ,  H02M7/537 ,  H02M7/538

CPC classification number: H02M7/797 ,  H02M7/483 ,  H02M7/497 ,  H02M7/537 ,  H02M7/53803 ,  H02M2007/4835

Abstract: This power converter (1) is provided with: unit cells (11-M) having a semiconductor switch, a DC capacitor (C) and a charge/discharge current I/O terminal; a first arm (12-P) and a second arm (12-N) comprising multiple unit cells (11-M) connected to each other in cascade; an arm connecting unit (13) which has a first terminal to which the first arm (12-P) is connected, a second terminal to which the second arm (12-N) is connected, and a third terminal to which a DC power source is connected; and a transformer (14) which has an AC I/O terminal on the primary side and an intermediate terminal on the secondary side winding, and in which the terminal of the first arm (12-P) and the terminal of the second arm (12-N) are connected to the two end terminals on the secondary winding, and the DC power source (Vdc) is connected to the intermediate terminal.

Abstract translation: 该功率转换器（1）具有：具有半导体开关的单元电池（11-M），直流电容器（C）和充放电电流I / O端子; 包括彼此串联连接的多个单电池（11-M）的第一臂（12-P）和第二臂（12-N） 臂连接单元（13），其具有连接有第一臂（12-P）的第一端子，与第二臂（12-N）连接的第二端子，以及第三端子，DC电源 来源连接; 以及变压器（14），其在初级侧具有AC I / O端子和在次级侧绕组上的中间端子，并且其中第一臂（12-P）的端子和第二臂的端子（ 12-N）连接到次级绕组上的两个端子，并且直流电源（Vdc）连接到中间端子。

公开(公告)号：US10103645B2

公开(公告)日：2018-10-16

申请号：US15126356

申请日：2015-03-17

Applicant: TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Hirofumi Akagi ,  Makoto Hagiwara

IPC: H02M7/537 ,  H02M5/293 ,  H02J3/18 ,  H02M1/42 ,  H02M5/10 ,  H02M7/483

Abstract: This power converter is provided with: three clusters (CLu, CLv, CLw) in which unit cells are cascade-connected; and power supplies of the same kind which are respectively connected to one end of each of the three clusters. Terminals of the three clusters at the side not connected to the power supplies are respectively connected to other ends of the power supplies connected to the other clusters to form a delta-connection configuration. Three connections of the delta-connection configuration are respectively connected to each of the U, V, and W phases of a three-phase alternating current, and power conversion between the power supplies and the three-phase AC is enabled. If DC power supplies (Vdcu, Vdcv, Vdcw) are employed as the power supplies, power conversion between the DC power supplies and the three-phase AC power supplies can be performed. If in-phase single-phase AC power supplies are employed as the power supplies, power conversion between either the single-phase AC power supplies and the three-phase AC power supplies, or the three-phase AC power supplies can be performed.

公开(公告)号：US20170085193A1

公开(公告)日：2017-03-23

申请号：US15126356

申请日：2015-03-17

Applicant: TOKYO INSTITUTE OF TECHNOLOGY

Inventor： Hirofumi Akagi ,  MAKOTO HAGIWARA

IPC: H02M7/537 ,  H02M1/42

CPC classification number: H02M7/537 ,  H02J3/18 ,  H02M1/42 ,  H02M5/10 ,  H02M5/293 ,  H02M2007/4835 ,  Y02E40/30

Abstract: This power converter is provided with: three clusters (CLu, CLv, CLw) in which unit cells are cascade-connected; and power supplies of the same kind which are respectively connected to one end of each of the three clusters. Terminals of the three clusters at the side not connected to the power supplies are respectively connected to other ends of the power supplies connected to the other clusters to form a delta-connection configuration. Three connections of the delta-connection configuration are respectively connected to each of the U, V, and W phases of a three-phase alternating current, and power conversion between the power supplies and the three-phase AC is enabled. If DC power supplies (Vdcu, Vdcv, Vdcw) are employed as the power supplies, power conversion between the DC power supplies and the three-phase AC power supplies can be performed. If in-phase single-phase AC power supplies are employed as the power supplies, power conversion between either the single-phase AC power supplies and the three-phase AC power supplies, or the three-phase AC power supplies can be performed.