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Accuracy of one-cycle DFT-based synchrophasor estimators in steady-state and dynamic conditions

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3 Author(s)
Barchi, G. ; DISI - Dept. of Inf. Eng. & Comput. Sci., Univ. of Trento, Trento, Italy ; Macii, D. ; Petri, D.

The real-time, high-accuracy measurement of electrical waveform phasors is one of the many open challenges that need to be tackled in future smart grids. In this paper, the accuracy of three well-known synchrophasor estimators based on the single-cycle Discrete Fourier Transform (DFT) is evaluated under the effect of static frequency offsets, amplitude modulation and phase modulation. Compared with other research works dealing with the same topic, in this paper phasor estimation accuracy is assessed exhaustively, by varying multiple model parameters at the same time in order to determine the maximum (and minimum) Total Error Vector (TVE) values. This approach leads to a fair performance comparison between the considered techniques.

Published in:

Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International

Date of Conference:

13-16 May 2012