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Power quality indices for transient disturbances

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4 Author(s)
Yong-June Shin ; South Carolina Univ., Columbia, SC ; Powers, E. ; Grady, M. ; Arapostathis, A.

Summary form only given. For reasonable power quality assessment of transient disturbances in electric power systems, new transient power quality indices are developed based on a signal processing technique, time-frequency analysis. Based on the time-frequency distribution of a transient disturbance, a set of time-frequency based power quality indices are developed. In this paper, the instantaneous disturbance energy ratio, normalized instantaneous disturbance energy ratio, instantaneous frequency, and instantaneous K-factor are suggested for transient power quality assessment. Time-frequency based power quality indices allow one to quantify the effects of transient disturbances with high-resolution and accuracy

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Power Engineering Society General Meeting, 2006. IEEE

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