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    • 6. 发明授权
    • Apparatus for automatically adjusting offset correction values for
current detectors
    • 用于自动调整电流检测器偏移校正值的装置
    • US5319294A
    • 1994-06-07
    • US65232
    • 1993-05-24
    • Masahiro OhtoHisashi KinoshitaNin KakeYoshihiro Ino
    • Masahiro OhtoHisashi KinoshitaNin KakeYoshihiro Ino
    • G05B19/23G05B19/405
    • G05B19/237G05B2219/37285G05B2219/37391G05B2219/37543G05B2219/41132G05B2219/42033G05B2219/42062
    • An automatic offset adjusting apparatus for current detectors in a digital controller for a servo motor is constructed so that, when errors occur in offset correction values due to a temperature change and the like while the servo motor is in operation, an electrical angle detecting unit detects a ripple of the torque of the servo motor, on the basis of a ripple of a torque command value, and detects a first electrical angle, where the torque command value becomes maximum, and a second electrical angle, where the torque command value becomes minimum, based on an electrical angle signal of the servo motor, a judgement unit judges whether or not offset correction errors have occurred on the basis of a difference between the first and second electrical angles, and, if the judgement unit judges that the offset correction errors have occurred, a correction unit adds adjustment values for the offset correction values corresponding to the first electrical angle to the respective offset correction values to update the offset correction values, whereby the correction of the offset correction values is automatically carried out even while the servo motor is in operation, thereby preventing generation of the ripple of the torque of the servo motor.
    • 一种用于伺服电动机的数字控制器中的电流检测器的自动偏移调整装置被构造成使得当伺服电动机运行时由于温度变化等导致的偏移校正值中出现错误时,电角度检测单元检测 基于转矩指令值的波动,伺服电动机的转矩的波动,并且检测转矩指令值变为最大的第一电角度和转矩指令值变为最小的第二电角度 基于伺服电动机的电角度信号,判断单元基于第一和第二电角度之间的差来判断偏移校正误差是否发生,并且如果判断单元判断偏移校正误差 校正单元将对应于第一电角度的偏移校正值的调整值加到相应的偏移校正值 以更新偏移校正值,由此即使在伺服电动机运行时也自动执行偏移校正值的校正,从而防止产生伺服电动机的转矩纹波。
    • 8. 发明申请
    • PERIODIC DISTURBANCE AUTOMATIC SUPPRESSION DEVICE
    • 周期性干扰自动抑制装置
    • US20150326163A1
    • 2015-11-12
    • US14646976
    • 2013-12-05
    • MEIDENSHA CORPORATION
    • Takashi YAMAGUCHIYugo TADANO
    • H02P21/13
    • H02P21/13G05B19/19G05B2219/41132
    • In suppression of torque ripple with a periodic disturbance observer, adjustment of a gain portion is determined sequentially during monitoring operation of monitoring an operating condition. Therefore, many adjusting parameters are involved and achievement of correction is dependent on the skill of a person in charge of adjustment or design.The periodic disturbance observer is provided with a model correcting means or section which calculates an error of an identification model by using a time difference quantity by an output of the periodic disturbance observer and a sensed value of a plant and corrects the identification model with the error of the identification model. Finally, the system performs the torque ripple suppression control with an accurately estimated periodic disturbance.
    • 在用周期性扰动观测器抑制转矩波动时,在监视运行状态的监视操作期间依次确定增益部分的调整。 因此,涉及到许多调整参数,修正的实现取决于负责调整或设计的人的技能。 定期扰动观察者设置有模型校正装置或部分,该模型校正装置或部分通过使用周期性干扰观察者的输出的时间差量和植物的感测值来计算识别模型的误差,并用误差校正识别模型 的识别模型。 最后,系统以精确估计的周期性扰动进行转矩脉动抑制控制。