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.
對於短時低電壓擾動發生、恢複時刻的檢測與定位則是電能質量監測和統計中獲取相關指標首先要解決的問題。
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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.
在此基礎上，針對伴有相位跳變的電壓跌落問題，提出UPQC串聯側基於瞬時無功功率理論考慮相位跳變的最小能量補償電壓檢測方法。
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.
動態電壓恢複器（DVR）是目前解決供電電壓凹陷問題的有傚裝置，對電壓凹陷特征量的準確檢測是DVR正常運行的前提。