公开(公告)号：US20150295506A1

公开(公告)日：2015-10-15

申请号：US14681096

申请日：2015-04-08

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kentaro INOMATA ,  Eiji WATANABE ,  Takashi TANAKA

IPC: H02M5/293

CPC classification number: H02M5/293 ,  H02M1/12 ,  H02M5/271 ,  H02M5/297

Abstract: A power converting apparatus includes: a power converter provided between each phase of an AC power source and each phase of a load; a controller for controlling the power converter to perform a power conversion control between the AC power source and the load; and a filter provided between the AC power source and the power converter. The controller has: an oscillation component detector to detect an oscillation component of an input voltage of the power converter or an oscillation component included in a current flowing through the filter; and an output voltage controller to control an output voltage of the power converter to suppress a resonance of the filter based on the oscillation component.

Abstract translation: 电力转换装置包括：电力转换器，其设置在交流电源的各相与负载的各相之间; 控制器，用于控制所述功率转换器，以在所述AC电源和所述负载之间执行功率转换控制; 以及设置在AC电源和功率转换器之间的滤波器。 控制器具有：振荡分量检测器，用于检测功率转换器的输入电压的振荡分量或包含在流过滤波器的电流中的振荡分量; 以及输出电压控制器，用于控制功率转换器的输出电压，以基于振荡分量抑制滤波器的谐振。

公开(公告)号：US20140246939A1

公开(公告)日：2014-09-04

申请号：US14276981

申请日：2014-05-13

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Sohji MURAKAMI ,  Motomichi OHTO ,  Kentaro INOMATA ,  Kozo IDE ,  Shinya MORIMOTO

IPC: H02K1/27 ,  H02P6/18

CPC classification number: H02K1/274 ,  H02K1/02 ,  H02K1/146 ,  H02K1/148 ,  H02K1/2733 ,  H02K1/276 ,  H02K1/278 ,  H02K3/28 ,  H02K29/12 ,  H02K2201/03 ,  H02P6/18 ,  H02P25/18

Abstract: The motor includes: a rotor that includes a rotor core provided with a plurality of permanent magnets in a circumferential direction; and a stator that includes a stator core on which multi-phase stator coils are wound and is arranged facing the rotor with a predetermined air gap therebetween. The rotor has a structure in which the change pattern of magnetic properties of the rotor core or the permanent magnets changes stepwise in the circumferential direction. The stator has a structure in which the distribution pattern of a magnetic field generated by the stator coils with one phase or with a combination of the phases has uniqueness over a whole circumference.

Abstract translation: 电动机包括：转子，其包括沿圆周方向设置有多个永磁体的转子铁芯; 以及定子，其包括定子芯，多个定子线圈缠绕在所述定子芯上，并且在所述定子芯之间以预定的气隙相对于所述转子布置。 转子具有转子铁心或永磁体的磁特性的变化方向在周向上逐步变化的结构。 定子具有这样一种结构，其中由定子线圈产生的具有一相或相组合的磁场的分布模式在整个圆周上是唯一的。

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：US20210249971A1

公开(公告)日：2021-08-12

申请号：US17243922

申请日：2021-04-29

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kentaro INOMATA ,  Akira YAMAZAKI ,  Masato HIGUCHI ,  Hidenori HARA

IPC: H02M7/493 ,  H02M1/00

Abstract: A power conversion device connected in parallel to a second power conversion device including power conversion circuitry that performs power conversion by changing a connection state between first multiple lines on a primary side and second multiple lines on a secondary side, baseline selection circuitry that selects one of the second multiple lines on the secondary side as a baseline and partial modulation control circuitry that controls the power conversion circuitry to maintain a state in which the baseline is connected to one of the first multiple lines on the primary side and to change a connection state between other second multiple lines on the secondary side and the first multiple lines on the primary side, wherein the baseline selection circuitry switches a line selected as the baseline based on a switching timing used by second baseline selection circuitry of the second power conversion device to select a second baseline.

公开(公告)号：US20160056706A1

公开(公告)日：2016-02-25

申请号：US14831876

申请日：2015-08-21

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kentaro INOMATA

IPC: H02M1/00 ,  H02M5/293

CPC classification number: H02M5/293 ,  H02M5/297 ,  H02M2001/0003 ,  H02M2001/0054 ,  Y02B70/1491

Abstract: A matrix converter includes a selector, a commutation controller, a determinator, and a condition changer. The selector selects one commutation pattern from plurality of commutation patterns based on a state of a phase voltage of a AC power source and a state of a phase current of a load. The commutation controller performs commutation control by controlling bidirectional switches pursuant to the commutation pattern selected by the selector to switch a connection state of the AC power source and the load. The determinator determines a power loss generated by the commutation control in the bidirectional switches. The condition changer changes the commutation patterns which become a selection target of the selector or a selection condition of the commutation patterns which become the selection target of the selector, based on the power loss determined by the determinator.

Abstract translation: 矩阵转换器包括选择器，换向控制器，确定器和条件转换器。 选择器基于交流电源的相电压的状态和负载的相电流的状态，从多个换向模式中选择一个换向模式。 换向控制器通过根据由选择器选择的换向模式控制双向开关来切换AC电源和负载的连接状态来执行换向控制。 决定器确定双向开关中的换向控制产生的功率损耗。 条件改变器基于由确定器确定的功率损耗，改变成为选择器的选择目标的换向模式或成为选择器的选择目标的换向模式的选择条件。

公开(公告)号：US20160054751A1

公开(公告)日：2016-02-25

申请号：US14834338

申请日：2015-08-24

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kentaro INOMATA

IPC: G05F5/00

CPC classification number: G05F5/00 ,  H02M5/293 ,  H02M5/297

Abstract: A matrix converter includes a power converter and a commutator. The power converter includes a plurality of bidirectional switches provided between respective phases of an AC power source and respective phases of a load. The commutator is configured to perform commutation control by which input phases connected to output phases are switched using the bidirectional switches. The commutator includes a selector configured to select one commutation pattern from a plurality of commutation patterns based on at least one of a state of phase voltages of the AC power source and a state of phase currents of the load, and a commutation controller configured to perform commutation control by controlling the bidirectional switches pursuant to the commutation pattern selected by the selector to switch a connection state of the AC power source and the load.

Abstract translation: 矩阵转换器包括功率转换器和换向器。 功率转换器包括多个双向开关，其设置在交流电源的各相和负载的各相之间。 换向器被配置为执行换向控制，通过该换向控制，通过双向开关切换连接到输出相的输入相位。 换向器包括选择器，其被配置为基于交流电源的相电压的状态和负载的相电流状态中的至少一个来从多个换向模式中选择一个换向模式;以及换流控制器，被配置为执行 通过根据由选择器选择的换向模式控制双向开关来切换AC电源和负载的连接状态的换向控制。

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。

公开(公告)号：US20150003136A1

公开(公告)日：2015-01-01

申请号：US14303567

申请日：2014-06-12

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Kentaro INOMATA ,  Hidenori HARA ,  Takahiro UCHINO

IPC: H02M5/293

CPC classification number: H02M5/293 ,  H02M1/14

Abstract: A matrix converter according to an embodiment includes a voltage command corrector and a drive signal generator. The voltage command corrector corrects the magnitude of an output voltage command on the basis of amplitude variations of an input current from an AC power supply to a power converter, the amplitude variations being caused by a ripple component of the input current. The drive signal generator generates drive signals that turn ON/OFF a plurality of bidirectional switches on the basis of the output voltage command corrected by the voltage command corrector.

Abstract translation: 根据实施例的矩阵转换器包括电压指令校正器和驱动信号发生器。 电压指令校正器基于从AC电源到功率转换器的输入电流的幅度变化来校正输出电压命令的幅度，该幅度变化由输入电流的纹波分量引起。 驱动信号发生器基于由电压指令校正器校正的输出电压指令生成导通/关断多个双向开关的驱动信号。

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。