Servomotor current control method and servomotor
    1.
    发明授权
    Servomotor current control method and servomotor 有权
    伺服电机电流控制方式及伺服电机

    公开(公告)号:US07728536B2

    公开(公告)日:2010-06-01

    申请号:US11574608

    申请日:2005-08-18

    IPC分类号: H02P21/00

    摘要: Under a low load condition, a produced torque is small and a synthetic current command I* with respect to an armature of a servomotor is small so that a magnitude in a negative direction of a reactive current command Id* determined by Id*=−|I*|·sin θ is small. As a result, under the low load condition, the synthetic current flowing through the armature can be small, and generation of wasteful heat can be suppressed. Further, under a high load condition, because a q-axis current Iq that produces the torque is large, voltage saturation is liable to occur. However, at the same time, the overall current command I* is large under the high load condition, and Id* is large in the negative direction. Therefore, a large reactive current Id can be flowed in the negative direction, and voltage saturation under the high load condition can be effectively prevented.

    摘要翻译: 在低负载条件下,产生的转矩小,并且相对于伺服电动机的电枢的合成电流指令I *小,使得由Id * = - |确定的无功电流指令Id *的负方向的大小 我* |·罪恶 是小。 结果,在低负载条件下,流过电枢的合成电流可以很小,并且可以抑制浪费热的产生。 此外,在高负载条件下,由于产生转矩的q轴电流Iq大,容易发生电压饱和。 然而,同时,在高负载条件下,总电流指令I *大,Id *在负方向大。 因此,大的无功电流Id可以在负方向流动,并且可以有效地防止在高负载条件下的电压饱和。

    Servomotor Current Control Method And Servomotor
    2.
    发明申请
    Servomotor Current Control Method And Servomotor 有权
    伺服电机电流控制方法及伺服电机

    公开(公告)号:US20080012521A1

    公开(公告)日:2008-01-17

    申请号:US11574608

    申请日:2005-08-18

    IPC分类号: H02P21/00 G05B11/01 H02P27/04

    摘要: Under a low load condition, a produced torque is small and a synthetic current command I* with respect to an armature of a servomotor is small so that a magnitude in a negative direction of a reactive current command Id* determined by Id*=−|I*|·sin θ is small. As a result, under the low load condition, the synthetic current flowing through the armature can be small, and generation of wasteful heat can be suppressed. Further, under a high load condition, because a q-axis current Iq that produces the torque is large, voltage saturation is liable to occur. However, at the same time, the overall current command I* is large under the high load condition, and Id* is large in the negative direction. Therefore, a large reactive current Id can be flowed in the negative direction, and voltage saturation under the high load condition can be effectively prevented.

    摘要翻译: 在低负载条件下,产生的转矩小,并且相对于伺服电动机的电枢的合成电流指令I *小,使得由Id * = - |确定的无功电流指令Id *的负方向的大小 I * | .sinθ很小。 结果,在低负载条件下,流过电枢的合成电流可以很小,并且可以抑制浪费热的产生。 此外,在高负载条件下,由于产生转矩的q轴电流Iq大,容易发生电压饱和。 然而,同时,在高负载条件下,总电流指令I *大,Id *在负方向大。 因此,大的无功电流Id可以在负方向流动,并且可以有效地防止在高负载条件下的电压饱和。

    Method of and an apparatus for agitating a bath of melted metal for
treating the same
    3.
    发明授权
    Method of and an apparatus for agitating a bath of melted metal for treating the same 失效
    用于搅拌熔融金属浴以用于处理熔融金属的方法和装置

    公开(公告)号:US4195823A

    公开(公告)日:1980-04-01

    申请号:US919687

    申请日:1978-06-27

    摘要: A method of agitating a bath of melted metal for treating the same by blowing gas into a one piece columnar body of such melted metal disposed in the bath to cause the apparent specific gravity of the columnar body to be reduced and to thereby be hydrostatically lifted, and returning the lifted portion of the melted metal to the bath by pouring the same with a splashing effect onto the free surface of the bath, in a manner to continuously change the pouring position on the free surface of the bath, thereby causing improved agitation of the bath, and especially improved contact and mixing of the melted metal and a treating agent generally floating on the free surface of the bath.

    摘要翻译: 通过将熔融金属的熔融液吹入设置在槽中的这种熔融金属的一体式柱状体中来搅拌熔融金属的浴来进行处理,使柱状体的表观比重降低,由此被液压地提升, 并且通过将熔融金属的提升部分以溅射效果倾倒在浴槽的自由表面上,以使连续地改变浴的自由表面上的倾倒位置的方式将熔融金属的提升部分返回到浴中, 并且特别地改善熔融金属与通常漂浮在浴的自由表面上的处理剂的接触和混合。

    SIGNAL PROCESSING DEVICE, VELOCITY DETECTING DEVICE AND SERVO MECHANISM
    4.
    发明申请
    SIGNAL PROCESSING DEVICE, VELOCITY DETECTING DEVICE AND SERVO MECHANISM 有权
    信号处理装置,速度检测装置和伺服机构

    公开(公告)号:US20080061723A1

    公开(公告)日:2008-03-13

    申请号:US11768757

    申请日:2007-06-26

    IPC分类号: G05D13/00

    CPC分类号: G05D13/62

    摘要: A driving velocity of a motor is detected by processing a position information signal output from a sensor in accordance with a driving position of a motor. The signal processing device includes a position information signal processor (410) that processes the position information signal and calculates driving velocity information of the motor, and an internal position information generator (460) that reflects a latest driving velocity information (ωn) calculated by the position information signal processor (410) and generates a latest presumed position of the motor as internal position information. An amplitude correcting unit (465) detects the amplitude of the position information signal from the sensor and corrects the amplitude of the internal position information signal based on the detected amplitude.

    摘要翻译: 通过根据电动机的驱动位置处理从传感器输出的位置信息信号来检测电动机的行驶速度。 信号处理装置包括处理位置信息信号并计算电动机的驱动速度信息的位置信息信号处理器(410),以及内部位置信息发生器(460),其反映最新的行驶速度信息 由位置信息信号处理器(410)计算,并且生成电动机的最新推测位置作为内部位置信息。 振幅校正单元(465)检测来自传感器的位置信息信号的振幅,并根据检测到的振幅校正内部位置信息信号的振幅。

    Servo control device
    5.
    发明申请
    Servo control device 失效
    伺服控制装置

    公开(公告)号:US20060061318A1

    公开(公告)日:2006-03-23

    申请号:US11271969

    申请日:2005-11-14

    IPC分类号: G05B11/32

    CPC分类号: H02P5/74 B29C45/76

    摘要: A servo control device 10 connected to servo motors 21 to control them includes a digital logic circuit 11 having a predetermined bit width. The digital logic circuit 11 includes at least one pair of parallel arithmetical circuits 11a, 11b.

    摘要翻译: 连接到伺服电动机21以控制它们的伺服控制装置10包括具有预定位宽度的数字逻辑电路11。 数字逻辑电路11包括至少一对并行算术电路11a,11b。

    Method for agitating a bath of melted metal for treating the same
    6.
    发明授权
    Method for agitating a bath of melted metal for treating the same 失效
    搅拌熔融金属浴以进行处理的方法

    公开(公告)号:US4178175A

    公开(公告)日:1979-12-11

    申请号:US892417

    申请日:1978-03-31

    摘要: A method of agitating a bath of melted metal for treating the same by blowing gas into a columnar body of such melted metal disposed in the bath to cause the apparent specific gravity of the columnar body to be reduced and to thereby be hydrostatically lifted, and returning the lifted portion of the melted metal to the bath by pouring the same with a splashing effect onto the free surface of the bath, in a manner to continuously change the pouring position on the free surface of the bath, thereby causing improved agitation of the bath, and especially improved contact and mixing of the melted metal and a treating agent generally floating on the free surface of the bath.

    摘要翻译: 通过将气体吹入设置在浴中的这种熔融金属的柱状体中来搅拌熔融金属浴以进行处理,以减少柱状体的表观比重,从而进行液压提升,并返回 通过将熔融金属的升起部分以溅溅效果倾倒到浴的自由表面上,以连续改变浴的自由表面上的倾倒位置,从而改善浴的搅动 ,并且特别地改进了熔融金属和通常漂浮在浴的自由表面上的处理剂的接触和混合。

    Signal processing device, signal processing method, signal processing program, recording medium storing the program, speed detector and servomechanism
    7.
    发明授权
    Signal processing device, signal processing method, signal processing program, recording medium storing the program, speed detector and servomechanism 失效
    信号处理装置,信号处理方法,信号处理程序,存储程序的记录介质,速度检测器和伺服机构

    公开(公告)号:US07528565B2

    公开(公告)日:2009-05-05

    申请号:US11312529

    申请日:2005-12-21

    IPC分类号: G05B11/01

    CPC分类号: G05B19/416 G05B2219/41373

    摘要: A signal processing device processes a position information signal (A sinθ, A cosθ) output from a sensor in accordance with a driving position of a motor and detects a driving speed of the motor. The signal processing device includes a position information signal processor (410) that processes the position information signal and calculates driving speed information of the motor, and an internal position information generator (460) that reflects a latest driving speed information (ωn) calculated by the position information signal processor (410) and generates a latest presumed position of the motor as internal position information. The position information signal processor (410) calculates driving speed information (ωn) of the motor based on a difference between the position information signal (A sinθ, A cosθ) from the sensor and the internal position information (A sinθn, A cosθn) generated by the internal position information generator (460).

    摘要翻译: 信号处理装置根据电动机的驱动位置处理从传感器输出的位置信息信号(A sintheta,A costheta),并检测电动机的驱动速度。 信号处理装置包括处理位置信息信号并计算电动机的驱动速度信息的位置信息信号处理器(410),以及内部位置信息发生器(460),其反映由所述电动机计算出的最新行驶速度信息(ω) 位置信息信号处理器(410),并且产生作为内部位置信息的电动机的最新推测位置。 位置信息信号处理器(410)基于来自传感器的位置信息信号(A sintheta,A costheta)与产生的内部位置信息(A sinthetan,A costhetan)之间的差异来计算电动机的行驶速度信息(ω) 通过内部位置信息发生器(460)。

    Automatic speed loop gain adjustment method and apparatus for a feedback control system
    8.
    发明授权
    Automatic speed loop gain adjustment method and apparatus for a feedback control system 有权
    用于反馈控制系统的自动速度环增益调节方法和装置

    公开(公告)号:US06625502B2

    公开(公告)日:2003-09-23

    申请号:US09737821

    申请日:2000-12-18

    IPC分类号: G05B1302

    CPC分类号: G05B13/024

    摘要: Automatic speed loop gain adjustment of a feedback control system begins by setting up a phase margin range and a gain margin range. A speed open loop condition is provided by separating a speed command value from a speed feedback value. White noise is input into the feedback control system where the speed open loop condition has been made. A phase margin and a gain margin are then detected and comparisons are made with the phase margin range and the gain margin range, respectively. The speed loop gain is adjusted if the comparison results for either one of the detected phase margin and the detected gain margin fall outside of the associated phase margin range or gain margin range. Once the adjustment of the speed loop gain is complete, the position loop gain of the position control loop is adjusted on the basis of the adjusted speed loop gain.

    摘要翻译: 反馈控制系统的自动速度环增益调整通过设置相位裕度范围和增益裕度范围开始。 通过将速度指令值与速度反馈值分开来提供速度开环条件。 白噪声被输入到已经进行了速度开环条件的反馈控制系统中。 然后检测相位裕度和增益裕度,并分别与相位裕度范围和增益裕度范围进行比较。 如果检测到的相位裕度和检测到的增益裕度中的任一个的比较结果超出相关联的相位裕度范围或增益裕度范围,则调整速度环增益。 一旦速度环增益的调整完成,位置控制环路的位置环路增益就会根据调整后的速度环路增益进行调整。

    Servomotor current control method and servomotor
    9.
    发明授权
    Servomotor current control method and servomotor 有权
    伺服电机电流控制方式及伺服电机

    公开(公告)号:US08174218B2

    公开(公告)日:2012-05-08

    申请号:US12436195

    申请日:2009-05-06

    IPC分类号: H02P21/00

    CPC分类号: H02P21/22

    摘要: A method of controlling a current by supplying a d-axis current in order to prevent a voltage saturation includes: defining an amount of the d-axis current as Id=|Idmax|·sin θ; continuously comparing a voltage command value with the voltage command value threshold Vo in a predetermined cycle; extracting a predetermined number No of latest comparison results in terms of time; setting a phase angle θ to be 0° when a number N of the comparison results out of the predetermined number No of the comparison results is equal to or less than an integer Nb; and increasing the phase angle θ depending on largeness of the number N when the number N is more than the integer Nb.

    摘要翻译: 通过提供d轴电流来控制电流以防止电压饱和的方法包括:将d轴电流的量定义为Id = | Idmax |·sin&Thetas ;; 在预定周期内连续地将电压指令值与电压指令值阈值Vo进行比较; 从时间上提取最新比较结果的预定数量No; 设置一个相角&thetas; 当比较结果的预定数目No之间的N个比较结果的数目N等于或小于整数Nb时,为0°; 并增加相角和角度; 当数N大于整数Nb时,取决于数N的大小。

    Signal processing device, signal processing method, signal processing program, recording medium storing the program, speed detector and servomechanism
    10.
    发明申请
    Signal processing device, signal processing method, signal processing program, recording medium storing the program, speed detector and servomechanism 失效
    信号处理装置,信号处理方法,信号处理程序,存储程序的记录介质,速度检测器和伺服机构

    公开(公告)号:US20060145648A1

    公开(公告)日:2006-07-06

    申请号:US11312529

    申请日:2005-12-21

    IPC分类号: G05B1/06

    CPC分类号: G05B19/416 G05B2219/41373

    摘要: A signal processing device processes a position information signal (A sin θ, A cos θ) output from a sensor in accordance with a driving position of a motor and detects a driving speed of the motor. The signal processing device includes a position information signal processor (410) that processes the position information signal and calculates driving speed information of the motor, and an internal position information generator (460) that reflects a latest driving speed information (ωn) calculated by the position information signal processor (410) and generates a latest presumed position of the motor as internal position information. The position information signal processor (410) calculates driving speed information (ωn) of the motor based on a difference between the position information signal (A sin θ, A cos θ) from the sensor and the internal position information (A sin θn, A cos θn) generated by the internal position information generator (460).

    摘要翻译: 信号处理装置根据电动机的驱动位置处理从传感器输出的位置信息信号(Asinθ,Acosθ),并检测电动机的驱动速度。 信号处理装置包括处理位置信息信号并计算电动机的驱动速度信息的位置信息信号处理器(410),以及内部位置信息发生器(460),其反映最新的行驶速度信息 由位置信息信号处理器(410)计算,并且生成电动机的最新推测位置作为内部位置信息。 位置信息信号处理器(410)基于来自传感器的位置信息信号(Asinθ,Acosθ)与内部的信号(Asinθ,Acosθ)之间的差异来计算电动机的驱动速度信息(ω-n> N) 由内部位置信息发生器(460)生成的位置信息(AsinθN n,Acosθ< N>)。