Closed-loop phase compensation controller
    1.
    发明授权
    Closed-loop phase compensation controller 有权
    闭环相位补偿控制器

    公开(公告)号:US06690989B2

    公开(公告)日:2004-02-10

    申请号:US10100647

    申请日:2002-03-19

    IPC分类号: G06F1900

    摘要: An adaptive closed-loop controller is described that reduces repetitive speed variations of precision rotatable mechanical components, such as rollers, casting wheels, pulleys, gears, pull rollers, extruders, gear pumps, and the like. A system is illustrated in which the controller is coupled to a motor for driving a rotatable mechanical component in response to a motor control signal. A sensor is mounted to the shaft of the mechanical component, and generates a speed signal representing angular velocity of a mechanical component. The controller receives the speed signal, and generates a set of data elements to relate speed variations of the mechanical component to a plurality of angular positions of the mechanical component over one or more revolutions. The controller generates an error signal based on the data elements and introduces the error signal into closed-loop control circuitry to provide adaptive control over the mechanical component.

    摘要翻译: 描述了一种自适应闭环控制器,其减少了诸如辊,铸轮,滑轮,齿轮,拉辊,挤出机,齿轮泵等精密可旋转机械部件的重复速度变化。 示出了系统,其中控制器耦合到电动机以响应于电动机控制信号来驱动可旋转的机械部件。 传感器安装在机械部件的轴上,并产生代表机械部件的角速度的速度信号。 控制器接收速度信号,并且产生一组数据元素,以将机械部件的速度变化与机械部件的多个角位置相关地转动一圈或更多次。 控制器基于数据元素产生误差信号,并将误差信号引入闭环控制电路中,以提供对机械部件的自适应控制。

    Frequency control in closed loop control systems
    2.
    发明授权
    Frequency control in closed loop control systems 有权
    闭环控制系统中的频率控制

    公开(公告)号:US08000817B2

    公开(公告)日:2011-08-16

    申请号:US11575540

    申请日:2005-09-23

    CPC分类号: G05B5/01

    摘要: Process controllers, methods, and systems provide for frequency control to account for the effects of periodic disturbances in the feedback signal of closed loop control systems. The frequency components of the feedback signal are determined, including the magnitude and phase of each. Waveforms for each frequency component are generated with substantially the same magnitude and substantially the opposite phase of each frequency component. The waveforms are then summed to produce a compensating waveform that is summed within the output of the control system so that the effects of the periodic disturbances are cancelled from the control system output being provided to the system under control.

    摘要翻译: 过程控制器,方法和系统提供频率控制来解释闭环控制系统的反馈信号中的周期性干扰的影响。 确定反馈信号的频率分量,包括每个的幅度和相位。 每个频率分量的波形以每个频率分量基本上相同的幅度和基本相反的相位产生。 然后将波形相加以产生在控制系统的输出内相加的补偿波形,使得周期性干扰的影响从提供给控制系统的控制系统输出消除。