公开(公告)号：US3800199A

公开(公告)日：1974-03-26

申请号：US26664172

申请日：1972-06-27

Applicant: SIEMENS AG

Inventor： WEIGAND W

IPC: H02P25/02 ,  H02P27/06 ,  H02P7/44

CPC classification number: H02P27/06 ,  H02P25/024 ,  H02P27/047 ,  H02P2201/03

Abstract: A circuit to dampen oscillations occurring in rotating field machines such as low friction hysteresis motor drives is disclosed. The circuit operates by detecting the frequency of oscillations occurring in the machines and regulating the frequency of the power fed to the motors to dampen the oscillations. The damping is produced by using a bandpass filter tuned to the frequency of the oscillations and subtracting this frequency from a predetermined frequency to thereby force the rotating stator field of the machines to track the oscillations of the machine''s rotors.

Abstract translation: 公开了一种用于抑制在诸如低摩擦滞后电动机驱动器的旋转现场机器中发生的振荡的电路。 该电路通过检测在机器中发生的振荡的频率并调节馈送到电动机的功率的频率来抑制振荡来工作。 通过使用调谐到振荡频率的带通滤波器并从预定频率减去该频率来产生阻尼，从而迫使机器的旋转定子磁场跟踪机器转子的振荡。