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：US20140092658A1

公开(公告)日：2014-04-03

申请号：US14028541

申请日：2013-09-17

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Hidenori HARA ,  Yushi TAKATSUKA

IPC: H02M7/5395

CPC classification number: H02M7/5395 ,  H02M7/53875 ,  H02M2001/0054 ,  Y02B70/1491

Abstract: A power conversion apparatus includes a power converter and a PWM controller. A first switching element is coupled to a positive pole of a DC power source and one terminal of a load. A second switching element is coupled to a negative pole of the DC power source and another terminal of the load. A third switching element is coupled to the positive pole and the other terminal. A fourth switching element is coupled to the negative pole and the one terminal. The PWM controller PWM-controls the power conversion apparatus to repeat an on-period during which the DC power source outputs a voltage to the load and an off-period during which no voltage is output. The PWM controller alternately controls the first and second switching elements based on a signal set at a high or low level any time during a carrier wave period.

Abstract translation: 电力转换装置包括功率转换器和PWM控制器。 第一开关元件耦合到直流电源的正极和负载的一个端子。 第二开关元件耦合到DC电源的负极和负载的另一个端子。 第三开关元件耦合到正极和另一个端子。 第四开关元件耦合到负极和一个端子。 PWM控制器PWM控制功率转换装置重复直流电源向负载输出的电压和不输出电压的截止周期。 PWM控制器基于在载波周期期间的任何时间在高电平或低电平设置的信号来交替地控制第一和第二开关元件。

公开(公告)号：US20140202781A1

公开(公告)日：2014-07-24

申请号：US14224072

申请日：2014-03-25

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Akira SOMA ,  Hidenori HARA ,  Yushi TAKATSUKA

IPC: H02K11/00 ,  H02K3/00 ,  H02K5/04 ,  H02K9/00

CPC classification number: H02K3/00 ,  H02K3/50 ,  H02K5/04 ,  H02K5/15 ,  H02K5/20 ,  H02K5/225 ,  H02K9/00 ,  H02K11/33

Abstract: A motor drive device includes a motor including a high-speed drive winding and a low-speed drive winding, a winding switching portion switching the connection states of the high-speed drive winding and the low-speed drive winding of the motor, a power conversion portion connected to the motor, and a plurality of case portions housing at least the motor, the winding switching portion, and the power conversion portion, while the plurality of case portions are coupled to each other.

Abstract translation: 电动机驱动装置包括：电动机，包括高速驱动绕组和低速驱动绕组;绕组切换部分切换高速驱动绕组和电动机的低速驱动绕组的连接状态;电源 转换部分，以及多个壳体部分，至少容纳电机，绕组切换部分和电力转换部分，同时多个壳体部分彼此联接。

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。