公开(公告)号：US20150194922A1

公开(公告)日：2015-07-09

申请号：US14591500

申请日：2015-01-07

Applicant: FANUC Corporation

Inventor： Hiroyasu SATO ,  Masaya TATEDA ,  Akira HIRAI

IPC: H02P27/06

CPC classification number: G01R31/346 ,  G01R27/025 ,  G01R31/14

Abstract: A motor drive device of the present invention includes: a rectification circuit configured to rectify an AC voltage; a power source unit configured to smooth a DC voltage by a capacitor; an inverter unit configured to drive a motor by converting a DC voltage into an AC voltage; a current detection unit configured to measure a current flowing through a resistor which is connected to a coil of the motor and the capacitor; a voltage detection unit configured to measure a value of a voltage across the capacitor; a second switch that grounds the capacitor; and an insulation resistance detection unit configured to detect an insulation resistance value of a motor by using two sets of a current value and a voltage value measured in two states where the second switch is turned off and turned on.

Abstract translation: 本发明的电动机驱动装置包括：整流电路，对交流电压进行整流; 电源单元，被配置为通过电容器平滑DC电压; 逆变器单元，被配置为通过将DC电压转换成AC电压来驱动电动机; 电流检测单元，被配置为测量流过连接到电动机的线圈和电容器的电阻器的电流; 电压检测单元，被配置为测量电容器两端的电压值; 使电容器接地的第二开关; 以及绝缘电阻检测单元，被配置为通过使用两组电流值和在第二开关断开和接通的两种状态下测量的电压值来检测电动机的绝缘电阻值。

公开(公告)号：US20140056338A1

公开(公告)日：2014-02-27

申请号：US13975794

申请日：2013-08-26

Applicant: FANUC CORPORATION

Inventor： Masaya TATEDA ,  Hiroyasu SATO

IPC: H04B1/40

CPC classification number: H04B1/40 ,  G05B2219/34434 ,  G08C19/00 ,  H02P5/00

Abstract: A data reception unit carries out reception of data, which consists of a combination of switching noise resistant states and switching noise nonresistant states, over a fixed serial communication time a plurality of times for each fixed serial communication period same as the one or a plurality of the switching periods. A serial communication time setting unit sets the serial communication time different from one or a plurality of the switching periods, based on the switching period, the serial communication period, and the communication speed of the data communication device, so that the starts of all of the switching periods within the serial communication time are consistent with the time of reception of the switching noise resistant state at the time of at least one of the reception of the data among a plurality of times of the reception of the data.

Abstract translation: 数据接收单元对于与固定的串行通信时间相同的固定串行通信时间多次来执行数据的接收，该数据由开关抗噪声状态和开关噪声非阻抗状态的组合组成， 切换周期。 串行通信时间设定单元基于数据通信设备的切换周期，串行通信周期和通信速度来设定与一个或多个切换周期不同的串行通信时间，从而全部开始 串行通信时间内的切换周期与在接收数据的多次之间的数据接收中的至少一个时刻的接收到开关抗噪声状态的时间一致。

公开(公告)号：US20130221888A1

公开(公告)日：2013-08-29

申请号：US13746718

申请日：2013-01-22

Applicant: FANUC CORPORATION

Inventor： Shinichi HORIKOSHI ,  Hiroyasu SATO ,  Minoru KOBAYASHI

IPC: H02P27/06

CPC classification number: H02P27/06 ,  H02P3/22

Abstract: A motor drive apparatus includes an inverter which has an upper and lower arms each provided with a plurality of semiconductor switching devices and free-wheeling diodes connected in reverse parallel with respective ones of the plurality of semiconductor switching devices, wherein the semiconductor switching devices are controlled on and off to convert DC to AC, a short-circuiting unit which includes a selector switch between motor phase windings of a synchronous motor, the selector switch being opened and closed under the control of a command, and a dynamic braking control unit which, upon reception of a dynamic braking start command, performs control so as to turn on all of the semiconductor switching devices provided in either one of the upper and lower arms and to turn off all of the semiconductor switching devices provided in the other arm, and thereafter controls the short-circuiting unit so that the selector switch is closed.

Abstract translation: 一种电动机驱动装置，具备：逆变器，具有上臂和下臂，每个上臂和下臂都设置有多个半导体开关装置和与所述多个半导体开关装置中的相应的反向并联连接的续流二极管，其中半导体开关装置被控制 一个短路单元，它包括一个在同步电动机的电动机相绕组之间的选择开关，该选择开关在一个指令的控制下被打开和关闭;一个动态制动控制单元， 在接收到动态制动开始指令时，进行控制，以使得设置在上臂和下臂中的任一个中的所有半导体开关装置接通并关闭设置在另一臂中的所有半导体开关装置，之后 控制短路单元，使选择开关闭合。