公开(公告)号：US20150123700A1

公开(公告)日：2015-05-07

申请号：US14071911

申请日：2013-11-05

Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

Inventor： Ahmed Mohamed sayed ahmed ,  Brian J. Seibel ,  Russel Kerkman

IPC: G01R31/40

CPC classification number: G01R31/40 ,  H02J3/24 ,  H02J9/06 ,  H02J13/0006 ,  Y02B70/3291 ,  Y02B90/222 ,  Y04S20/12 ,  Y04S20/248

Abstract: Described herein are methods, systems, and apparatuses for determining sag in a signal. In one example, a method of tracking sag in a signal includes, when in an initial state, monitoring for when the signal transitions to a sag state based at least on an output of a tracking filter. In response to the signal transitioning to the sag state, increasing a bandwidth of the tracking filter and, when in the sag state, monitoring for when the signal transitions to a recovering state. The method further includes, in response to the signal transitioning to the recovering state, decreasing the bandwidth of the tracking filter.

Abstract translation: 这里描述了用于确定信号中的下垂的方法，系统和装置。 在一个示例中，跟踪信号中的下垂的方法包括：当处于初始状态时，至少基于跟踪滤波器的输出监视信号什么时候转变到松弛状态。 响应于信号转换到下垂状态，增加跟踪滤波器的带宽，并且当处于下垂状态时，监视信号何时转换到恢复状态。 该方法还包括响应于信号转换到恢复状态，减小跟踪滤波器的带宽。