公开(公告)号：US20170063252A1

公开(公告)日：2017-03-02

申请号：US15252410

申请日：2016-08-31

Applicant: Kabushiki Kaisha Yaskawa Denki

Inventor： Shingo FUKUMARU ,  Shinya MORIMOTO ,  Hideaki IURA ,  Hirofumi KINOMURA

IPC: H02M7/5387 ,  H02M1/08

CPC classification number: H02M7/5387 ,  H02M2001/0009 ,  H02M2007/53876

Abstract: A power conversion apparatus includes: a power converter that includes a plurality of switching elements; a switch controller that controls the plurality of switching elements so that the order of outputting a plurality of kinds of voltage vectors from the power converter is opposite in a first half and a latter half of a carrier period; a DC-side current detector that detects a DC-side current of the power converter; and a phase current detector that detects one phase current among three phase currents on the basis of the detected DC-side current at a detection timing, the detection timing being selected from a first-half timing and a latter-half timing of the carrier period at which the same kind of voltage vector is output. The phase current detector includes a timing switcher that alternately switches the detection timing between the first-half timing and the latter-half timing.

Abstract translation: 一种电力转换装置，包括：功率转换器，包括多个开关元件; 开关控制器，其控制所述多个开关元件，使得从所述功率转换器输出多种电压矢量的顺序在载波周期的前半部和后半部相反; 检测功率转换器的直流侧电流的直流侧电流检测器; 以及相电流检测器，其基于检测定时的检测到的DC侧电流来检测三相电流之中的一相电流，所述检测定时选自载波周期的前半定时和后期定时 输出相同种类的电压矢量。 相电流检测器包括定时切换器，其交替地切换上半部定时与后半时间之间的检测定时。

公开(公告)号：US20150085553A1

公开(公告)日：2015-03-26

申请号：US14497232

申请日：2014-09-25

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Hirofumi KINOMURA ,  Joji EBISU

IPC: H02M5/293

CPC classification number: H02M5/293 ,  H02M5/297 ,  H02M2005/2932

Abstract: A matrix converter includes: a power convertor that includes a plurality of bidirectional switches; and a controller configured to control the plurality of bidirectional switches. The controller includes: a first commutation controller configured to perform a commutation control with a first commutation method; a second commutation controller configured to perform a commutation control with a second commutation method different from the first commutation method; and a selector configured to select a commutation controller that is configured to execute a commutation control from the first commutation controller and the second commutation controller based on any one of a phase of an output electric current from the power convertor and a phase of an input voltage to the power convertor.

Abstract translation: 矩阵转换器包括：功率转换器，包括多个双向开关; 以及控制器，被配置为控制所述多个双向开关。 控制器包括：第一换向控制器，被配置为利用第一换向方法执行换向控制; 第二换向控制器，被配置为以与所述第一换向方法不同的第二换向方式执行换向控制; 以及选择器，其被配置为基于来自所述功率转换器的输出电流的相位和输入电压的相位中的任何一个来选择被配置为从所述第一换向控制器和所述第二换向控制器执行换向控制的换向控制器 到电力转换器。

公开(公告)号：US20200169205A1

公开(公告)日：2020-05-28

申请号：US16776518

申请日：2020-01-30

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Hirofumi KINOMURA

IPC: H02P23/00

Abstract: A power conversion device includes a switching circuitry configured to supply a driving alternating current (AC) power to a motor of a controlled object that includes the motor and a movable part driven by the motor, and detect an abnormality in the controlled object based on the index information acquired.

公开(公告)号：US20200028454A1

公开(公告)日：2020-01-23

申请号：US16587075

申请日：2019-09-30

Applicant: Kabushiki Kaisha Yaskawa Denki

Inventor： Hirofumi KINOMURA

IPC: H02P6/10 ,  H02P29/50 ,  H02P21/22 ,  H02P29/40

Abstract: Provided is an electric motor control apparatus (1) configured to extract a speed ripple component from a difference between an angular frequency command and an angular frequency feedback, configured to generate a phase of the speed ripple component from the speed ripple component, configured to multiply a value of a periodic function corresponding to the phase and a given amplitude by each other, to thereby generate a torque compensation value, configured to calculate a torque command value from the difference between the angular frequency command and the angular frequency feedback, and configured to control a current to be output to an electric motor based on a compensated torque command obtained by adding the torque compensation value to the torque command value.

公开(公告)号：US20150280549A1

公开(公告)日：2015-10-01

申请号：US14564090

申请日：2014-12-09

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Hirofumi KINOMURA ,  Takahiro SAEKI

IPC: H02M1/42

CPC classification number: H02M1/4216 ,  H02M1/126 ,  H02M5/273 ,  H02M5/297 ,  H02M2001/0025 ,  H02M2005/2932 ,  Y02B70/126

Abstract: A power conversion apparatus includes a power converter, an LC filter, and a controller. The power converter is disposed between an AC power source and a load. The LC filter is disposed between the AC power source and the power converter. The controller controls the power converter to perform power conversion control between the AC power source and the load. The controller includes a command generator, an oscillation component acquirer, a regulator, and an actuator. The command generator generates an input current command including a command of an input current of the power converter. The oscillation component acquirer acquires an oscillation component of a current flowing through a capacitor of the LC filter. The regulator regulates the input current command based on the oscillation component acquired by the oscillation component acquirer. The actuator controls the power converter based on the input current command regulated by the regulator.

Abstract translation: 功率转换装置包括功率转换器，LC滤波器和控制器。 电力转换器设置在交流电源和负载之间。 LC滤波器设置在AC电源和功率转换器之间。 控制器控制电源转换器在交流电源和负载之间执行电源转换控制。 控制器包括命令发生器，振荡元件获取器，调节器和致动器。 命令发生器产生包括功率转换器的输入电流的命令的输入电流指令。 振荡分量获取器获取流过LC滤波器的电容器的电流的振荡分量。 调节器根据由振荡分量获取器获取的振荡分量来调节输入电流指令。 执行器根据由调节器调节的输入电流指令控制功率转换器。

公开(公告)号：US20150102797A1

公开(公告)日：2015-04-16

申请号：US14513216

申请日：2014-10-14

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Hirofumi KINOMURA ,  Joji EBISU ,  Koji IWAHASHI

IPC: H02M5/293

CPC classification number: H02M5/293 ,  H02M5/297

Abstract: A matrix converter includes: a power convertor that includes a plurality of bidirectional switches configured to control a conducting direction using a plurality of switching elements; a command generator configured to generate a control command for a PWM control on the plurality of switching elements; and a commutation controller configured to perform a commutation control on the plurality of bidirectional switches in a case where the control command changes. In a case where the control command changes during execution of the commutation control, the commutation controller executes a handover step for handover to a next commutation control and then executes the next commutation control from a step in a course of the next commutation control.

Abstract translation: 矩阵转换器包括：功率转换器，其包括被配置为使用多个开关元件来控制导通方向的多个双向开关; 命令发生器，被配置为产生用于所述多个开关元件的PWM控制的控制命令; 以及换向控制器，被配置为在所述控制命令改变的情况下对所述多个双向开关执行换向控制。 在执行换向控制期间控制命令改变的情况下，换向控制器执行切换步骤，以切换到下一个换向控制，然后在下一个换向控制的过程中从一个步骤执行下一个换向控制。

公开(公告)号：US20140292237A1

公开(公告)日：2014-10-02

申请号：US14156460

申请日：2014-01-16

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Akira YAMAZAKI ,  Hirofumi KINOMURA ,  Hideaki IURA

IPC: H02P6/18 ,  H02P21/00

CPC classification number: H02P6/183 ,  H02P6/00 ,  H02P21/22 ,  H02P25/03

Abstract: A motor control apparatus according to an embodiment includes a power conversion unit and a control unit. The power conversion unit supplies power to a motor having salient pole characteristic. The control unit performs proportional-integral control on the deviation between a current reference and a current flowing into the motor to generate a voltage reference, and controls the power conversion unit on the basis of the voltage reference. The control unit estimates the magnetic-pole position of a rotor of the motor on the basis of a high-frequency current flowing into the motor by controlling the power conversion unit, and corrects the estimated magnetic-pole position on the basis of an integrated value of the proportional-integral control.

Abstract translation: 根据实施例的电动机控制装置包括电力转换单元和控制单元。 电力转换单元向具有突极特性的电动机供电。 控制单元对电流基准和流入电动机的电流之间的偏差进行比例积分控制，生成电压基准，并根据电压基准控制功率转换单元。 控制单元通过控制电力转换单元，基于流入电动机的高频电流来估计电动机的转子的磁极位置，并且基于积分值来校正估计的磁极位置 的比例积分控制。