公开(公告)号：US20150244293A1

公开(公告)日：2015-08-27

申请号：US14706589

申请日：2015-05-07

Applicant: ABB Technology AG

Inventor： Joerg PIEDER ,  Paolo BELLI

IPC: H02P5/747 ,  H02K7/00 ,  H02K19/10

CPC classification number: H02P5/747 ,  F04B15/06 ,  H02K7/00 ,  H02K19/10 ,  H02P29/50

Abstract: An exemplary system includes a first electric motor and a second electric motor, which are coupled mechanically to one another via a common string of the system. The string has a torsional natural oscillation at a natural frequency. A first oscillating torque acts on the string by the first electric motor and a second oscillating torque acts on the string by the second electric motor. The second electric motor is arranged with respect to the first electric motor such that the effect of the second oscillating torque on the string results in damping of the excitation of the natural oscillation owing to the first oscillating torque.

Abstract translation: 示例性系统包括第一电动机和第二电动机，其通过系统的公共串彼此机械耦合。 弦具有固有频率的扭转自然振荡。 第一振动转矩由第一电动机作用在弦上，第二振荡转矩由第二电动机作用在弦上。 第二电动机相对于第一电动机布置，使得第二振荡转矩对弦的影响导致由于第一振荡转矩而引起的自然振动的激励的阻尼。