SERVO CONTROL DEVICE HAVING AUTOMATIC FILTER ADJUSTMENT FUNCTION BASED ON EXPERIMENTAL MODAL ANALYSIS
    5.
    发明申请
    SERVO CONTROL DEVICE HAVING AUTOMATIC FILTER ADJUSTMENT FUNCTION BASED ON EXPERIMENTAL MODAL ANALYSIS 有权
    基于实验模态分析的具有自动过滤器调整功能的伺服控制装置

    公开(公告)号:US20160170400A1

    公开(公告)日:2016-06-16

    申请号:US14946646

    申请日:2015-11-19

    申请人: FANUC Corporation

    发明人: Kazunori IIJIMA

    IPC分类号: G05B19/19

    摘要: A servo control device includes: a speed control loop including a speed command generating unit, a torque command generating unit, and a speed detecting unit; a sine wave disturbance input unit; a frequency response calculating unit estimating a gain and phase of speed control loop input/output signals; a resonance frequency detecting unit; a resonance mode characteristic estimating unit estimating resonance characteristics from the frequency response at a resonance frequency and frequencies therearound; a rigid-body mode characteristic estimating unit estimating rigid-body characteristics from the frequency response in a low-frequency band; a filter attenuating a component in a particular frequency band in a torque command; and a filter adjusting unit making setting so that the filter has specified characteristics. The filter adjusting unit further includes a filter adjusting part attenuating a component in a frequency band corresponding to a resonance mode estimated by the resonance mode characteristic estimating unit.

    摘要翻译: 伺服控制装置包括:速度控制回路,包括速度指令生成单元,转矩指令生成单元和速度检测单元; 正弦波干扰输入单元; 频率响应计算单元,估计速度控制环路输入/输出信号的增益和相位; 谐振频率检测单元; 谐振模式特性估计单元,根据谐振频率和其周围的频率根据频率响应估计谐振特性; 刚体模式特性估计单元,从低频带中的频率响应估计刚体特性; 滤波器,用于在扭矩指令中衰减特定频带中的分量; 以及过滤器调节单元,使得过滤器具有特定的特征。 滤波器调整单元还包括滤波器调整部件,衰减与由谐振模式特性估计单元估计的谐振模式相对应的频带中的分量。

    Motor control device and motor control method
    6.
    发明授权
    Motor control device and motor control method 有权
    电机控制装置及电机控制方式

    公开(公告)号:US09280149B2

    公开(公告)日:2016-03-08

    申请号:US14171781

    申请日:2014-02-04

    发明人: Fuminori Sugihara

    摘要: A motor control device includes a power converter, a velocity controller, and a certain-position stop controller. The power converter outputs a driving current on the basis of an input torque command. The velocity controller generates a calculated torque command on the basis of a difference between a velocity represented by a velocity command and a motor velocity. The certain-position stop controller performs position control by, after first detecting a reference position of a motor during velocity control, generating a position command for positioning the motor from the reference position to a target stop position at a torque of a torque schedule, generating the velocity command on the basis of a difference between a position represented by the position command and the motor position, and outputting a value resulting from adding a torque feedforward command generated on the basis of the torque schedule to the calculated torque command.

    摘要翻译: 电动机控制装置包括功率转换器,速度控制器和特定位置停止控制器。 功率转换器基于输入转矩指令输出驱动电流。 速度控制器基于由速度指令表示的速度和电动机速度之间的差异来生成计算出的转矩指令。 特定位置停止控制器通过在速度控制期间首先检测到电动机的基准位置之后,以转矩调度的转矩产生用于将电动机从基准位置定位到目标停止位置的位置指令,执行位置控制,产生 基于由所述位置指令表示的位置与所述电动机位置之间的差的速度指令,并且将根据所述转矩计划产生的转矩前馈指令所产生的值输出到所计算出的转矩指令。

    Motor control system and safety monitoring system therefor
    7.
    发明授权
    Motor control system and safety monitoring system therefor 有权
    电机控制系统及其安全监控系统

    公开(公告)号:US09110451B2

    公开(公告)日:2015-08-18

    申请号:US13819597

    申请日:2010-11-11

    申请人: Kenji Ogawa

    发明人: Kenji Ogawa

    摘要: Each of a host controller and a motor control apparatus included in a motor control system that drives a motor includes a step of determining, with respect to motor rotation state estimation information estimated based on an electric current and a voltage to the motor, whether an operation state of the motor is normal according to what kind of a relation an operation command output by the host controller and a detected motor position or motor speed have.

    摘要翻译: 包括在驱动电动机的电动机控制系统中的主机控制器和电动机控制装置中的每一个包括以下步骤:相对于基于电流和对电动机的电压估计的电动机旋转状态估计信息, 根据主机控制器输出的操作命令和检测到的电机位置或电机速度,电机的状态是否正常。

    VALVE ACTUATORS
    9.
    发明申请
    VALVE ACTUATORS 有权
    阀门执行器

    公开(公告)号:US20150108937A1

    公开(公告)日:2015-04-23

    申请号:US14360634

    申请日:2012-11-27

    IPC分类号: G05B11/01

    摘要: A valve actuator having a drive shaft, which, in use, is configured to adjust a valve between an open position and a closed position, an AC induction motor for driving the drive shaft a contactless position sensor configured to, in use, output a signal representing an angular position of the drive shaft or the valve, and a controller configured to control the AC motor in accordance with the signal output by position sensor.

    摘要翻译: 一种具有驱动轴的阀致动器,其在使用中被配置为在打开位置和关闭位置之间调节阀; AC感应电动机,用于驱动所述驱动轴,非接触位置传感器被配置为在使用中输出信号 代表驱动轴或阀的角度位置,以及控制器,其被配置为根据由位置传感器输出的信号来控制AC电动机。