公开(公告)号：US20140117917A1

公开(公告)日：2014-05-01

申请号：US14031047

申请日：2013-09-19

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kotaro TAKEDA ,  Eiji WATANABE ,  Takashi TANAKA ,  Kentaro INOMATA ,  Hidenori HARA ,  Takuya NAKA ,  Wataru YOSHINAGA

IPC: H02P27/16

CPC classification number: H02P27/16 ,  H02M5/16 ,  H02M5/297

Abstract: A matrix converter includes: a power conversion unit provided between an AC power supply and a rotational machine; and a controller for performing power conversion control therebetween by controlling the power conversion unit. The power conversion unit includes multiple bidirectional switches each of which has at least one first directional switching element and at least one second directional switching element. Further, the controller includes a first drive control unit performing the power conversion by simultaneously turning on both of the first directional switching element and the second directional switching element, and a second drive control unit performing the power conversion by turning on one of the first directional switching element and the second directional switching element.

Abstract translation: 矩阵转换器包括：设置在AC电源和旋转机器之间的电力转换单元; 以及控制器，用于通过控制电力转换单元来执行电力转换控制。 功率转换单元包括多个双向开关，每个开关具有至少一个第一方向开关元件和至少一个第二定向开关元件。 此外，控制器包括：第一驱动控制单元，通过同时接通第一方向开关元件和第二方向开关元件两者来执行电力转换;以及第二驱动控制单元，通过接通第一方向开关元件 开关元件和第二定向开关元件。

公开(公告)号：US20140160824A1

公开(公告)日：2014-06-12

申请号：US14101342

申请日：2013-12-10

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kentaro INOMATA ,  Katsutoshi YAMANAKA ,  Hidenori HARA ,  Shinya MORIMOTO ,  Kotaro TAKEDA ,  Takashi TANAKA ,  Takuya NAKA ,  Wataru YOSHINAGA

IPC: H02M5/293

CPC classification number: H02M5/293 ,  H02M5/297

Abstract: A matrix converter according to an embodiment includes a plurality of bidirectional switches and a controller. The bidirectional switches connect each of phases of an alternating current (AC) power supply with each of phases of a rotary electric machine. The controller controls the bidirectional switches to perform power conversion control between the AC power supply and the rotary electric machine. The controller performs on/off control individually on a plurality of unidirectional switching elements constituting the bidirectional switches by using both 120-degree conduction control and PWM control.

Abstract translation: 根据实施例的矩阵转换器包括多个双向开关和控制器。 双向开关将交流（AC）电源的每个相位与旋转电机的每个相位相连接。 控制器控制双向开关，在交流电源和旋转电机之间进行电源转换控制。 控制器通过使用120度导通控制和PWM控制来对构成双向开关的多个单向开关元件分别执行开/关控制。

公开(公告)号：US20160006389A1

公开(公告)日：2016-01-07

申请号：US14791257

申请日：2015-07-03

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kotaro TAKEDA ,  Takashi TANAKA ,  Takuya NAKA ,  Wataru YOSHINAGA ,  Masaki IKEDA

IPC: H02P27/16 ,  H02M1/42

CPC classification number: H02P27/16 ,  H02M1/126 ,  H02M1/42 ,  H02M5/297 ,  Y02B70/12

Abstract: A series multiplex matrix converter includes a power converter and a controller. The power converter is disposed between a power system and a rotating electric machine, and includes a plurality of power conversion cells connected in series to each other. The controller is configured to control at least one power conversion cell among the plurality of power conversion cells to cause a current to flow from the at least one power conversion cell toward the rotating electric machine, and configured to control a rest of the plurality of power conversion cells to cause the current flowing toward the rotating electric machine to flow from the rest of the plurality of power conversion cells toward the power system as a reactive current.

Abstract translation: 一种串联多路矩阵转换器，包括功率转换器和控制器。 功率转换器设置在电力系统和旋转电机之间，并且包括彼此串联连接的多个功率转换单元。 控制器被配置为控制多个功率转换单元中的至少一个功率转换单元，以使电流从至少一个功率转换单元流向旋转电机，并且被配置为控制多个功率转换单元的其余部分 使电流流向旋转电机的转换单元从多个功率转换单元的其余部分流向电力系统作为无功电流。

公开(公告)号：US20160006345A1

公开(公告)日：2016-01-07

申请号：US14791258

申请日：2015-07-03

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Wataru YOSHINAGA ,  Takashi TANAKA ,  Kentaro INOMATA ,  Kotaro TAKEDA ,  Takuya NAKA

IPC: H02M1/42 ,  H02P27/16

CPC classification number: H02M1/4208 ,  H02M1/126 ,  H02M1/42 ,  H02M5/297 ,  H02P21/22 ,  H02P23/26 ,  H02P27/16 ,  Y02B70/12

Abstract: A matrix convertor includes a power convertor and a controller. The power convertor is disposed between a power system and a rotating electric machine, and includes a plurality of bidirectional switches. The controller is configured to control an exciting current flowing from the power convertor to the rotating electric machine so as to control a power factor on a side of the power system.

Abstract translation: 矩阵转换器包括功率转换器和控制器。 功率转换器设置在电力系统和旋转电机之间，并且包括多个双向开关。 控制器被配置为控制从功率转换器流向旋转电机的激励电流，以便控制电力系统一侧的功率因数。

公开(公告)号：US20150188443A1

公开(公告)日：2015-07-02

申请号：US14576209

申请日：2014-12-19

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kotaro TAKEDA ,  Wataru YOSHINAGA ,  Takashi TANAKA ,  Takuya NAKA ,  Kentaro INOMATA

IPC: H02M5/293 ,  F03D9/00

CPC classification number: H02M5/293 ,  F03D9/255 ,  H02J3/1842 ,  H02J3/386 ,  H02M5/297 ,  H02M2005/2932 ,  H02P3/22 ,  H02P27/16 ,  Y02E10/763 ,  Y02E40/22

Abstract: A matrix converter according to embodiments includes a power conversion unit and drive controllers. The power conversion unit includes a plurality of bidirectional switches for connecting each phase of an alternating-current (AC) power supply with each phase of a rotary electric machine. When the voltage of the AC power supply is a predetermined value or less, the drive controllers control the power conversion unit to supply reactive power from the power conversion unit to the AC power supply and to control the torque of the rotary electric machine.

Abstract translation: 根据实施例的矩阵转换器包括功率转换单元和驱动控制器。 功率转换单元包括多个双向开关，用于将交流（AC）电源的每个相与旋转电机的每个相连接。 当交流电源的电压为预定值以下时，驱动控制器控制电力转换单元，从电力转换单元向交流电源供给无功功率，并控制旋转电机的转矩。