公开(公告)号：US09252698B2

公开(公告)日：2016-02-02

申请号：US14162740

申请日：2014-01-24

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Tsuneo Kume ,  Hidenori Hara ,  Koji Higashikawa

IPC: H02P1/00 ,  H02P3/00 ,  H02P7/06 ,  H02P25/18 ,  H02P6/08

CPC classification number: H02P25/188 ,  H02P6/08

Abstract: An inverter device includes a power supply unit and a switch controller. The power supply unit supplies AC power to an AC motor whose electric characteristics in response to a rotation speed are switchable between low speed characteristics and high speed characteristics. The switch controller switches the electric characteristics of the AC motor. The switch controller executes switching control that alternately switches the electric characteristics of the AC motor between the low speed characteristics and the high speed characteristics on the basis of the rotation speed of the AC motor.

Abstract translation: 逆变器装置包括一个电源单元和一个开关控制器。 电源单元向交流电动机提供交流电力，其交流电动机响应于转速的电特性可在低速特性和高速特性之间切换。 开关控制器切换交流电机的电气特性。 开关控制器执行根据交流电动机的转速在低速特性和高速特性之间交替地切换交流电动机的电气特性的开关控制。

公开(公告)号：US09166513B2

公开(公告)日：2015-10-20

申请号：US13895360

申请日：2013-05-16

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Masashi Takenouchi ,  Tomohiro Kawachi ,  Kenji Tomohara ,  Koji Higashikawa

IPC: H02P25/18 ,  H02P6/08

CPC classification number: H02P25/18 ,  H02P6/08

Abstract: Provided is an inverter apparatus 20 configured to switch a current winding to an optimal winding when a rotation speed of a rotor of an AC electric motor 40 is within a hysteresis region defined by first and second switch timings for switching a state of an armature winding between a first winding and a second winding and when the current winding differs from the optimal winding.

Abstract translation: 提供了一种逆变器装置20，其被配置为当AC电动机40的转子的转速在由第一和第二开关定时限定的滞后区域内时将电流绕组切换到最佳绕组，用于切换电枢绕组的状态 第一绕组和第二绕组，并且当电流绕组与最佳绕组不同时。

公开(公告)号：US09543878B2

公开(公告)日：2017-01-10

申请号：US15014288

申请日：2016-02-03

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Tomohiko Sanada ,  Koji Higashikawa ,  Tasuku Isobe ,  Aiko Higuchi ,  Fumiaki Ikeda ,  Kenji Yamada

IPC: H02P1/00 ,  H02P3/00 ,  H02P7/06 ,  H02P25/18 ,  H02P27/04 ,  H02P6/14 ,  H02M1/34

CPC classification number: H02P25/188 ,  H02M1/34 ,  H02P6/14 ,  H02P27/047 ,  H02P29/032

Abstract: A drive unit includes: an inverter; an electric motor that has a first winding connected to an output part of the inverter and a second winding connected to the first winding; a first semiconductor switch that has a first end connected to the first winding and a second end connected to the second winding; a second semiconductor switch that has a first end and a second end connected to the first winding and the first semiconductor switch; and a snubber circuit that is provided between the second end of the first semiconductor switch and the first end of the second semiconductor switch and has a capacitor and a diode.

Abstract translation: 驱动单元包括：逆变器; 电动机，其具有连接到所述逆变器的输出部的第一绕组和连接到所述第一绕组的第二绕组; 第一半导体开关，其具有连接到第一绕组的第一端和连接到第二绕组的第二端; 第二半导体开关，其具有连接到所述第一绕组和所述第一半导体开关的第一端和第二端; 以及缓冲电路，其设置在第一半导体开关的第二端和第二半导体开关的第一端之间，并具有电容器和二极管。

公开(公告)号：US09231514B2

公开(公告)日：2016-01-05

申请号：US13895361

申请日：2013-05-16

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Zhenning Chen ,  Tomohiro Kawachi ,  Kenji Tomohara ,  Koji Higashikawa ,  Masashi Takenouchi

IPC: H02P25/18 ,  H02P21/00

CPC classification number: H02P25/18 ,  H02P21/0089 ,  Y02P80/116

Abstract: A winding switching signal generator is configured to obtain information indicating a degree of field weakening from at least one of a current command calculator and a constant output controller, and to generate a winding switching signal for switching from a low speed rotation state to a high speed rotation state when the degree of the field weakening exceeds a predetermined condition in the low speed rotation state.

Abstract translation: 绕组切换信号发生器被配置为从电流指令计算器和恒定输出控制器中的至少一个获得指示弱化程度的信息，并且产生用于从低速旋转状态切换到高速的绕组切换信号 当弱磁程度在低速旋转状态下超过预定条件时的旋转状态。