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Method for estimating synchrophasors during static and dynamic conditions

Derviskadic, Asja  
•
Romano, Paolo  
•
Paolone, Mario  
2018

A method for performing synchrophasor estimation of an input signal, whereby the input signal is a sinusoidal power system voltage or current signal, comprising: a. Periodic sampling of a continuous time-domain waveform, consisting of a power system voltage or current signal, to obtain a discrete time-domain function; b. Transforming a discrete time-domain function to a discrete frequency-domain function; c. Estimating from the discrete frequency-domain function the instantaneous parameters of a synchrophasor of the sampled continuous time-domain waveform, the instantaneous parameters comprising a frequency, an amplitude and a phase angle. The method is directed to an improvment of the enhanced IpDFT-based synchrophasor estimation which takes into account interharmonic tones.

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US11204375.pdf

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openaccess

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n/a

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2.17 MB

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Adobe PDF

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