Abstract
System-wide monitoring and reliable identification of power quality (PQ) events and their source is one of the critical requirements of smart grid implementation. The concept of phasor measurement has tremendously helped in fast and reliable state estimation and wide area monitoring of power system. This paper proposes a fast and reliable method for estimation of harmonic phasors that is considered as the most serious PQ problem in the emerging scenario with growing proportion of power electronics based devices in the power system. In the absence of a dedicated standard for harmonic phasor measurement, the IEEE Std. C37.118.1 for a fundamental synchrophasor measurement has been followed as the reference for formulation and evaluation of the proposed method. The performance of the proposed method has been investigated on the variety of simulated and actual power system signals for steady-state and dynamic conditions.
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