voltage sag detection

基本解释

The detection and location of the start point and end point of the voltage sag and swell is a key problem for the power quality monitoring.
对于短时低电压扰动发生、恢复时刻的检测与定位则是电能质量监测和统计中获取相关指标首先要解决的问题。
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Aiming at the problem of voltage sag with phase jump, considering phase jump based on instantaneous reactive theory minimum energy compensating voltage detection algorithm is proposed.
在此基础上，针对伴有相位跳变的电压跌落问题，提出UPQC串联侧基于瞬时无功功率理论考虑相位跳变的最小能量补偿电压检测方法。
At present dynamic voltage restorer(DVR) is an effective device to deal with the voltage sag. Exact detection of voltage sag characteristics is the precondition of DVR's normal working.
动态电压恢复器（DVR）是目前解决供电电压凹陷问题的有效装置，对电压凹陷特征量的准确检测是DVR正常运行的前提。