QUADRATURE-BASED VOLTAGE EVENTS DETECTION METHOD
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United States of America Patent
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Issued Date -
Apr 2, 2015
app pub date -
Oct 1, 2013
filing date -
Oct 1, 2013
priority date (Note) -
Abandoned
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Abstract
The quadrature-based voltage events detection method accurately characterizes magnitude and duration of short duration voltage variations, such as sag, swell and interruption. The short duration voltage events are quantified by calculating the rms voltage. The present method utilizes a quadrature procedure to calculate the rms values for power quality event detection. Parameters that are most influenced by variations in rms voltage are used for event detection. Experimental results demonstrate the superiority, accuracy, and robustness of the quadrature method for all cases considered.
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