INDUSTRIAL SYSTEM PHASE SAG DETECTION

摘要

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.

主权项

1. A method of tracking sag in a signal, the method comprising:
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; when in the sag state, monitoring for when the signal transitions to a recovering state; and in response to the signal transitioning to the recovering state, decreasing the bandwidth of the tracking filter.