公开(公告)号：US20150146462A1

公开(公告)日：2015-05-28

申请号：US14543896

申请日：2014-11-18

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Katsutoshi YAMANAKA

IPC: H02M1/084 ,  H02M7/539

CPC classification number: H02M1/084 ,  H02M1/14 ,  H02M7/5387 ,  H02M7/539 ,  H02M7/5395 ,  H02M2001/0025 ,  H02M2001/123

Abstract: When first drive signals are driving signals for applying a short-circuit mode for turning on a plurality of switching elements of the same output phase, the current source power conversion apparatus according to one embodiment generates second drive signals for applying the short-circuit mode to an output phase having the smallest absolute value of a phase voltage, and switches the first drive signals to the second drive signals.

Abstract translation: 当第一驱动信号是用于施加用于接通相同输出相位的多个开关元件的短路模式的驱动信号时，根据一个实施例的电流源功率转换装置产生用于将短路模式施加到 具有相电压绝对值最小的输出相，并将第一驱动信号切换到第二驱动信号。

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：US20130229843A1

公开(公告)日：2013-09-05

申请号：US13775255

申请日：2013-02-25

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Yushi TAKATSUKA ,  Katsutoshi YAMANAKA

IPC: H02M7/537

CPC classification number: H02M7/537 ,  H02M1/44 ,  H02M7/5387 ,  H02M2001/123

Abstract: A current-source power converting apparatus according to an embodiment includes an inverter and a drive controller. The inverter includes, in every output phase, a plurality of switching elements that are serially connected between the positive pole and the negative pole of a direct current source. The drive controller controls the inverter in accordance with a current command in an output mode of controlling the switching elements of different output phases for supplying current between the output phases and a short circuit mode of controlling the switching elements of the same output phase. An output phase in which the drive controller executes the short circuit mode is an output phase whose phase voltage or phase current has the minimum absolute value.

Abstract translation: 根据实施例的电流源功率转换装置包括逆变器和驱动控制器。 逆变器在每个输出相中包括串联连接在直流电源的正极和负极之间的多个开关元件。 驱动控制器根据控制不同输出相位的开关元件的输出模式中的电流指令来控制逆变器，以提供输出相之间的电流以及控制相同输出相位的开关元件的短路模式。 驱动控制器执行短路模式的输出相位是其相电压或相电流具有最小绝对值的输出相位。

公开(公告)号：US20150070952A1

公开(公告)日：2015-03-12

申请号：US14541029

申请日：2014-11-13

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Sadao ISHII ,  Katsutoshi YAMANAKA ,  Tsuyoshi HIGUCHI ,  Takashi KUBOYAMA ,  Yutaro IHARA

IPC: H02M7/219 ,  H02M7/48

CPC classification number: H02M7/219 ,  H02M5/272 ,  H02M7/48 ,  H02M7/5395 ,  H02M7/797 ,  H02M2001/123

Abstract: An electric power converter according to an embodiment includes a switching unit, a controller, and a second bidirectional switch. The switching unit includes a plurality of first bidirectional switches disposed between a DC power source and an AC load or between a DC load and an AC power source. The controller controls the switching unit to perform power conversion between DC power and AC power. When turning off the second bidirectional switch disposed on a path between one pole of the DC power source or the DC load and the switching unit, the controller turns on the first bidirectional switch connected between the other pole of the DC power source and the AC load or between the other pole of the DC load and the AC power source.

Abstract translation: 根据实施例的电力转换器包括切换单元，控制器和第二双向开关。 开关单元包括设置在DC电源和AC负载之间或者在DC负载和AC电源之间的多个第一双向开关。 控制器控制开关单元在直流电源和交流电之间进行电源转换。 当关闭设置在直流电源的一极或直流负载之间的路径上的第二双向开关和开关单元时，控制器接通连接在直流电源的另一极和交流负载之间的第一双向开关 或直流负载的另一极与交流电源之间。

公开(公告)号：US20140176100A1

公开(公告)日：2014-06-26

申请号：US14106856

申请日：2013-12-16

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Hidenori HARA ,  Kentaro INOMATA ,  Katsutoshi YAMANAKA ,  Shinya MORIMOTO ,  Kotaro TAKEDA

IPC: H02M5/293

CPC classification number: H02M5/293 ,  H02M7/00

Abstract: A matrix converter according to one aspect of an embodiment includes a plurality of bidirectional switches and a controller. The bidirectional switches connect each phase of an alternating current (AC) power supply with each phase of the rotary electric machine. The controller performs power conversion control between the AC power supply and the rotary electric machine by controlling a plurality of unidirectional switching elements constituting the bidirectional switches individually. The controller performs switching control for advancing the timing at which the unidirectional switching elements constituting the bidirectional switches are switched ON from that in 120-degree conduction control, and for extending a period for which the unidirectional switching elements are kept ON from that in the 120-degree conduction control.

Abstract translation: 根据实施例的一个方面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）电源的每个相与旋转电机的每个相位相连接。 控制器通过单独控制构成双向开关的多个单向开关元件，在交流电源和旋转电机之间进行电力转换控制。 控制器执行用于将构成双向开关的单向开关元件的定时从120度导通控制开始的定时提前的开关控制，并且为了将单向开关元件保持ON的时段延长到120度 - 导电控制。

公开(公告)号：US20150124503A1

公开(公告)日：2015-05-07

申请号：US14596221

申请日：2015-01-14

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Tetsumi NARITA ,  Katsutoshi YAMANAKA

IPC: H02M7/797

CPC classification number: H02M7/797 ,  H02M7/48

Abstract: A power converter according to an embodiment includes a power conversion unit and a controller. The power conversion unit includes a plurality of first bidirectional switches that are disposed between a plurality of DC side terminals and a plurality of AC side terminals, and a second bidirectional switch and a reactor that are disposed between the AC side terminals. The controller keeps the second bidirectional switch ON in any one or both of a free-wheeling mode in a step-down power conversion from DC power into AC power, and an energy storing mode in which electric energy is stored in the reactor in a step-up power conversion from the AC power to the DC power.

Abstract translation: 根据实施例的功率转换器包括功率转换单元和控制器。 功率转换单元包括设置在多个DC侧端子和多个AC侧端子之间的多个第一双向开关，以及设置在AC侧端子之间的第二双向开关和电抗器。 控制器在从DC功率到DC电力的降压功率转换中的续流模式中的任一个或两个中保持第二双向开关接通，并且在步骤中电能存储在电抗器中的能量存储模式 - 从AC电源到DC电源的电源转换。

公开(公告)号：US20130229835A1

公开(公告)日：2013-09-05

申请号：US13776709

申请日：2013-02-26

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Katsutoshi YAMANAKA

IPC: H02M5/458

CPC classification number: H02M5/4585 ,  H02M1/12 ,  H02M5/297 ,  H02M5/458 ,  H02M2001/0012 ,  H02M2007/53876

Abstract: A power converting apparatus according to an embodiment includes a controller that controls a power converter. The controller includes a first signal generator which generates switch drive signals for AC-to-DC conversion, a second signal generator which generates switch drive signals for DC-to-AC conversion, and a drive signal generator which generates, in accordance with the switch drive signals for AC-to-DC conversion and the switch drive signals for DC-to-AC conversion, switch drive signals for controlling the power converter. The first signal generator and the second signal generator operate in synchronization with each other.

Abstract translation: 根据实施例的电力转换装置包括控制功率转换器的控制器。 控制器包括产生用于AC-DC转换的开关驱动信号的第一信号发生器，产生用于DC-AC转换的开关驱动信号的第二信号发生器，以及根据开关产生的驱动信号发生器 用于AC到DC转换的驱动信号和用于DC到AC转换的开关驱动信号，用于控制功率转换器的开关驱动信号。 第一信号发生器和第二信号发生器彼此同步地操作。

公开(公告)号：US20130088904A1

公开(公告)日：2013-04-11

申请号：US13645709

申请日：2012-10-05

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Katsutoshi YAMANAKA ,  Hidenori HARA ,  Yushi TAKATSUKA

IPC: H02M7/12

CPC classification number: H02M1/4225 ,  H02M7/219 ,  H02M2001/0054 ,  Y02B70/126 ,  Y02B70/1491

Abstract: An alternating-current/direct-current converter includes a rectifier, a reactor, a capacitor, and a switching rectifier. The rectifier is configured to rectify alternating-current voltage output from an alternating-current power source, thereby converting the alternating-current voltage into direct-current voltage, and to output the direct-current voltage. The capacitor includes terminals. The switching rectifier is coupled to the AC power source and switchable to output the direct-current voltage to the capacitor.

Abstract translation: 交流/直流电流转换器包括整流器，电抗器，电容器和开关整流器。 整流器被配置为对来自交流电源的交流电压进行整流，从而将交流电压转换成直流电压，并输出直流电压。 电容器包括端子。 开关整流器耦合到AC电源并且可切换以将直流电压输出到电容器。

公开(公告)号：US20150097505A1

公开(公告)日：2015-04-09

申请号：US14510234

申请日：2014-10-09

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Tsuneo KUME ,  Hidenori HARA ,  Katsutoshi YAMANAKA

IPC: H02P5/74

CPC classification number: H02P5/74 ,  H02M1/00 ,  H02M7/5387 ,  H02P21/06 ,  H02P27/06

Abstract: A current source inverter device according to an embodiment includes an inverter that supplies AC power to a number n (integer of 1 or greater) of AC motors each having a number m (integer of 2 or greater) of windings per phase; and a controller that controls the inverter and AC motor. The inverter includes a switching unit, in which a number n×m+1 of switching elements per phase are connected in series, and a number n×m of nodes among the switching elements are respectively connected with a number n×m of different windings with the same phase among the windings of the number n of the AC motors. The controller includes a mode selector that selects at least one winding as a supply target of the AC power from the number n×m of the windings based on a rotation speed of the AC motor.

Abstract translation: 根据实施例的电流源逆变器装置包括逆变器，其向相位数为m（整数2或更大的整数）的交流电动机的数量n（整数1或更大）提供交流电力; 以及控制逆变器和交流电机的控制器。 逆变器包括开关单元，其中每相的开关元件的数量n×m + 1串联连接，开关元件中的n×m个节点分别与n×m个不同的绕组 在交流电动机数量n的绕组中具有相同的相位。 控制器包括模式选择器，其基于交流电动机的转速，从绕组的数量n×m中选择至少一个绕组作为交流电力的供给目标。

公开(公告)号：US20140126251A1

公开(公告)日：2014-05-08

申请号：US14064199

申请日：2013-10-28

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Seiji FUJISAKI ,  Katsutoshi YAMANAKA

IPC: H02M5/458

CPC classification number: H02M5/4585 ,  H02M1/10 ,  H02M7/539

Abstract: A current-source power converting apparatus includes: a converter unit configured to convert an AC or DC voltage input from a power supply into a predetermined DC voltage; an inverter unit configured to convert a DC voltage supplied from the converter unit via a DC reactor into an AC voltage and output the AC voltage; and a controller configured to control the inverter unit at a modulation factor in correspondence with a step up/step down ratio based on a ratio of an output voltage from the inverter unit to an input voltage from the power supply.

Abstract translation: 电流源电力转换装置包括：转换器单元，被配置为将从电源输入的AC或DC电压转换为预定的DC电压; 逆变器单元，被配置为将从所述转换器单元经由DC电抗器提供的DC电压转换为AC电压并输出所述AC电压; 以及控制器，被配置为基于来自所述逆变器单元的输出电压与来自所述电源的输入电压的比率，以与升压/降压比对应的调制因子来控制所述逆变器单元。