Improved Fundamental Frequency Estimator for Three-Phase Application

This letter reports a digital signal processing based frequency estimation technique that relies on the storage of fundamental three-phase grid voltage samples. Unlike phase-locked loop algorithms, the proposed algorithm does not require the phase error information when estimating the grid frequency...

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Veröffentlicht in:	IEEE transactions on industrial electronics (1982) 2021-09, Vol.68 (9), p.8992-8998
Hauptverfasser:	Verma, Anant Kumar, Jarial, Raj Kumar, Roncero-Sanchez, Pedro, Ungarala, Mohan Rao
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Convergence Digital signal processing Estimation Frequency estimation Harmonic analysis Harmonics moving average filter (MAF) Oscillators Phase error Phase locked loops Power quality Resonant frequencies three-phase grid voltage Voltage sags
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