公开(公告)号：US20140203632A1

公开(公告)日：2014-07-24

申请号：US14162400

申请日：2014-01-23

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuusuke KOUNO ,  Yosuke NAKAZAWA ,  Kentaro SUZUKI ,  Ryuta HASEGAWA ,  Tomoyuki MAKINO

IPC: H02M7/219

CPC classification number: H02M7/219 ,  H02M1/32 ,  H02M7/483 ,  H02M7/49 ,  H02M2001/007 ,  H02M2001/322 ,  H02M2001/325

Abstract: A power conversion apparatus comprises a first converter connected to a second converter. The first converter includes a first capacitor and the second converter includes a second capacitor connected in series to a third capacitor. The capacitors are each connected in parallel with a respective resistor. The power conversion apparatus also includes a bypass switch connected in parallel to the first converter and in series to the second converter. A control module is configured to control a single-phase output voltage by operation of the first converter, the second converter, and the bypass switch.

Abstract translation: 电力转换装置包括连接到第二转换器的第一转换器。 第一转换器包括第一电容器，第二转换器包括与第三电容器串联连接的第二电容器。 电容器各自与相应的电阻器并联连接。 电力转换装置还包括与第一转换器并联连接并与第二转换器串联的旁路开关。 控制模块被配置为通过第一转换器，第二转换器和旁路开关的操作来控制单相输出电压。

公开(公告)号：US20160190908A1

公开(公告)日：2016-06-30

申请号：US14966130

申请日：2015-12-11

Applicant: Kabushiki Kaisha Toshiba

Inventor： Ryuta HASEGAWA ,  Shinya KONO ,  Takashi FUJITA ,  Teruyuki ISHIZUKI

IPC: H02M1/12

CPC classification number: H02M1/12 ,  H02M7/487

Abstract: According to one embodiment, there is provided a power conversion device, including a control unit configured to control ON/OFF of a switching element of a neutral-point-clamped power conversion device unit, wherein the control unit drives the power conversion device unit by a one-pulse control, controls a phase difference of an output voltage of the power conversion device unit with respect to a reference phase of to control an active current component of an output current of the power conversion device unit, and controls ON/OFF based on: (a) a phase angle for eliminating a predetermined odd-order harmonic component of the output voltage; and (b) a sum of the reference phase and the phase difference.

Abstract translation: 根据一个实施例，提供了一种电力转换装置，其包括控制单元，该控制单元被配置为控制中性点钳位功率转换装置单元的开关元件的接通/断开，其中控制单元通过以下方式驱动电力转换装置单元： 单脉冲控制，控制功率转换装置单元的输出电压相对于基准相位的相位差，以控制电力转换装置单元的输出电流的有功电流分量，并且基于ON / OFF on：（a）用于消除输出电压的预定奇数次谐波分量的相位角; 和（b）参考相位和相位差之和。

公开(公告)号：US20150002106A1

公开(公告)日：2015-01-01

申请号：US14314127

申请日：2014-06-25

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Katsuhisa INAGAKI ,  Kentaro SUZUKI ,  Ryuta HASEGAWA ,  Teruyuki ISHIZUKI ,  Kiyoshi KUSUNOKI

IPC: H02P9/30

CPC classification number: H02P9/302 ,  H02H7/06 ,  H02H7/1216 ,  H02M1/14 ,  H02M1/32 ,  H02M5/4585 ,  H02M7/487 ,  H02M7/493 ,  H02P9/007 ,  H02P9/38

Abstract: According to one embodiment, there is provided a generator excitation apparatus including a plurality of first power converters and a second power converter. The plurality of first power converters are electrically connected to windings of respective phases of rotors of a wound rotor type induction generator in which the windings of the rotors of the respective phases are electrically independent, and are configured to bidirectionally convert DC and AC. The second power converter is configured to bidirectionally convert DC and AC between DC sides of the first power converters and a three-phase DC power supply. The DC sides of the first power converters are electrically connected together to a DC side of the second power converter.

Abstract translation: 根据一个实施例，提供一种发电机励磁装置，其包括多个第一功率转换器和第二功率转换器。 多个第一功率转换器电连接到绕组转子式感应发电机的各个转子相的绕组，其中各相的转子的绕组在电气上是独立的，并且被配置为双向转换DC和AC。 第二电力转换器被配置为在第一电力转换器的DC侧和三相DC电源之间双向转换DC和AC。 第一电力转换器的DC侧电连接到第二电力转换器的DC侧。

公开(公告)号：US20170005590A1

公开(公告)日：2017-01-05

申请号：US15114106

申请日：2015-01-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Ryuta HASEGAWA ,  Yosuke NAKAZAWA ,  Daichi SUZUKI

IPC: H02M7/487

CPC classification number: H02M7/487 ,  H02M2001/0003 ,  H02M2001/0064 ,  H02M2007/4835

Abstract: In a power converter a DC positive terminal of a DC power supply is connected to a switching element, the DC negative terminal of the DC power supply is connected to a switching element. A capacitor and a capacitor connected in series are connected in parallel with the DC power supply, and a DC neutral point divided by the capacitor and the capacitor is connected to a switching element and a switching element. The switching element is connected to the positive terminal of a chopper cell group circuit, and the switching element is connected to the negative terminal of a chopper cell group circuit. The negative terminal of the chopper cell group circuit is connected to the positive terminal of the chopper cell group circuit, and the connection node therebetween serves as an output AC terminal.

Abstract translation: 在功率转换器中，直流电源的直流正极与开关元件连接，直流电源的直流负极与开关元件连接。 串联连接的电容器和电容器与直流电源并联连接，并且由电容器和电容器分开的直流中性点被连接到开关元件和开关元件。 开关元件连接到斩波单元组电路的正极，并且开关元件连接到斩波单元组电路的负极。 斩波单元组电路的负端子连接到斩波单元组电路的正端子，并且它们之间的连接节点用作输出AC端子。

公开(公告)号：US20150214870A1

公开(公告)日：2015-07-30

申请号：US14605424

申请日：2015-01-26

Applicant: Kabushiki Kaisha Toshiba

Inventor： Ryuta HASEGAWA ,  Teruyuki ISHIZUKI ,  Takashi FUJITA ,  Takahisa KAGEYAMA ,  Yutaro KITAMORI ,  Sho SATO

IPC: H02P6/00 ,  H02P29/02

CPC classification number: H02P6/005 ,  H02H7/06 ,  H02H7/12 ,  H02H9/002 ,  H02P9/007 ,  H02P29/024 ,  H02P29/0241

Abstract: According to one embodiment, an over-voltage prevention device includes a first short-circuit device provided between a secondary side of a wound-rotor induction machine and a frequency converter configured to excite the secondary side by a three-phase AC current and having a function of short-circuiting between phases of the three-phase AC current, resistors each connected between the first short-circuit device and the frequency converter for each phase, and second short-circuit devices connected respectively to the resistors in parallel and having a function of short-circuiting between the frequency converter and the secondary side of the wound-rotor induction machine.

Abstract translation: 根据一个实施例，一种过电压保护装置包括：设置在绕线转子感应电机的次级侧的第一短路装置和被配置为通过三相AC电流激励次级侧的变频器，并且具有 在三相交流电流的相位之间短路的功能，每相连接在第一短路装置和变频器之间的电阻器以及并联连接到电阻器并具有功能的第二短路装置 在变频器和绕线转子感应电机的次级侧之间短路。

公开(公告)号：US20140375121A1

公开(公告)日：2014-12-25

申请号：US14479204

申请日：2014-09-05

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuusuke KOUNO ,  Yosuke NAKAZAWA ,  Kentaro SUZUKI ,  Ryuta HASEGAWA ,  Tomoyuki MAKINO

IPC: B60L11/00

CPC classification number: B60L11/005 ,  B60L3/003 ,  B60L3/04 ,  B60L11/1812 ,  B60L11/1816 ,  B60L2240/525 ,  B60L2240/527 ,  B60L2240/529 ,  H02M7/217 ,  H02M7/483 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/127 ,  Y02T90/14

Abstract: According to an embodiment, a power conversion apparatus for a vehicle is provided with a single-phase two-level converter and a single-phase three-level converter. The single-phase two-level converter is composed of a capacitor, first to fourth controllable switching devices, diodes connected in antiparallel with the controllable switching devices, respectively. The single-phase three-level converter is composed of two series-connected capacitors, fifth to tenth controllable switching devices, diodes connected in antiparallel with the controllable switching devices, respectively. The single-phase two-level converter and the single-phase three-phase converter are connected in series at the AC input/output points. The single-phase two-level converter has smaller switching loss than the single-phase three-level converter, and the single-phase three-level converter has higher withstand voltage property than the single-phase two-level converter.

Abstract translation: 根据实施例，车辆的电力转换装置设置有单相二电平转换器和单相三电平转换器。 单相二电平转换器由电容器，第一至第四可控开关器件，分别与可控开关器件反并联连接的二极管组成。 单相三电平转换器由两个串联电容器组成，第五至第十个可控开关器件分别与可控开关器件反并联连接的二极管。 单相双电平转换器和单相三相转换器在交流输入/输出点串联连接。 单相二电平转换器的开关损耗小于单相三电平转换器，单相三电平转换器具有比单相二电平转换器更高的耐受电压特性。

公开(公告)号：US20160141965A1

公开(公告)日：2016-05-19

申请号：US14979406

申请日：2015-12-27

Applicant: Kabushiki Kaisha Toshiba

Inventor： Ryuta HASEGAWA ,  Yosuke NAKAZAWA

IPC: H02M3/335 ,  H02M1/32

CPC classification number: H02M3/33507 ,  H02M1/08 ,  H02M1/32 ,  H02M3/33523 ,  H02M3/33569 ,  H02M7/538 ,  H02M2001/0006 ,  H02M2001/0074 ,  H02M2001/348 ,  H03K2217/0081

Abstract: According to one embodiment, there is provided a switching element driving power supply circuit that converts a main circuit voltage into a driving voltage of power-converting switching elements. The circuit includes a plurality of insulating power supplies, and a plurality of switching element driving power supply units. The insulating power supplies have respective direct-current input circuit ends connected in series, respective input-side circuits and output-side circuits insulated from each other, and respective output circuit ends connected in parallel. The power supply units are connected in parallel with the output circuit ends, and supplying power to the gate driving circuits of the power conversion switching elements.

Abstract translation: 根据一个实施例，提供了一种将主电路电压转换为功率转换开关元件的驱动电压的开关元件驱动电源电路。 该电路包括多个绝缘电源和多个开关元件驱动电源单元。 绝缘电源具有串联连接的各个直流输入电路端，各自的输入侧电路和输出侧电路彼此绝缘，并且各个输出电路端并联连接。 电源单元与输出电路端并联连接，并向功率转换开关元件的栅极驱动电路供电。

公开(公告)号：US20160111975A1

公开(公告)日：2016-04-21

申请号：US14880550

申请日：2015-10-12

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Ryuta HASEGAWA ,  Teruyuki ISHIZUKI ,  Takashi FUJITA

IPC: H02M7/487

CPC classification number: H02M7/487 ,  H02M2001/0064

Abstract: According to one embodiment, there is provided a control device of a neutral-point-clamped power converter apparatus including a converter configured to convert current which were obtained by passing a d-axis current and a q-axis current of a rotating coordinate system through a filter having a time constant which is greater than an inverse number of a fundamental wave frequency of a three-phase currents, to three-phase currents, and a controller configured to calculate, based on the three-phase currents converted, a zero-phase voltage instruction value for controlling voltages into which a DC input voltage is divided at a neutral point, as an instruction value which is superimposed on three-phase voltage instruction values.

Abstract translation: 根据一个实施例，提供了一种中性点钳位功率转换器装置的控制装置，其包括转换器，其被配置为转换通过使旋转坐标系的d轴电流和q轴电流通过的电流通过 滤波器，其具有大于三相电流的基波频率的倒数的三次电流的时间常数和被配置为基于所转换的三相电流计算零相位电流的控制器， 用于控制直流输入电压在中性点被分压的电压的相电压指令值作为叠加在三相电压指令值上的指令值。

公开(公告)号：US20140119068A1

公开(公告)日：2014-05-01

申请号：US14057367

申请日：2013-10-18

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Ryuta HASEGAWA ,  Yosuke Nakazawa ,  Kentaro Suzuki ,  Katsuhisa Inagaki ,  Teruyuki Ishizuki

IPC: H02M5/458

CPC classification number: H02M5/4585

Abstract: In one embodiment, an electric power converting device includes a converter which converts a three-phase AC voltage output from a three-phase AC power source, into a DC voltage of each phase of a three-phase AC load, and an inverter which converts the DC voltage converted by the converter, into a single-phase AC voltage of each phase of the three-phase AC load. The converter includes for each phase of an electric power system a circuit which consists of a plurality of switching elements connected in series. The electric power converting device controls on/off of a switching element corresponding to one of phases of the electric power system in the converter such that a voltage which reduces fluctuation of a DC voltage applied between the converter and the inverter and corresponding to each phase of the three-phase AC load is output from the converter for each phase of the electric power system.

Abstract translation: 在一个实施例中，电力转换装置包括将从三相交流电源输出的三相交流电压转换为三相交流负载各相的直流电压的转换器，以及转换器 由转换器转换的直流电压变为三相交流负载各相的单相交流电压。 该转换器包括用于电力系统的每个相的电路，该电路由串联连接的多个开关元件组成。 电力转换装置控制与转换器中的电力系统的相的一个相对应的开关元件的开/关，使得减小在转换器和逆变器之间施加的直流电压的波动的电压， 从电力系统的每个相的转换器输出三相交流负载。