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The ability of Phasor Measurement Units to measure the phase angle of input signals makes them suitable for dynamic events monitoring. However, under dynamic conditions, e.g., power swing, the steady state definition of the synchrophasors is no more valid and the measurement accuracy is inevitably lower. A new algorithm is proposed for the dynamic phasor estimation, which is based on the Teager energy...
High resolution parametric methods offer many distinct advantage over conventional nonparametric methods for numerous applications in smart grid e.g. power quality monitoring and control, islanding detection, low frequency oscillations analysis, etc. Higher computational burden is the main cause of under utilization of these methods, which is dependent on the size of the autocorrelation matrix. The...
The evolving synchrophasor standards under transient condition may stipulate the phasor measurements to carry information regarding the quality of measurements in addition to the time stamp. This paper proposes an index, named as the Synchrophasor Transient Monitor (STM), for indicating the quality of the phasors. A Teager energy concept has been utilized to estimate the time of occurrence of the...
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