Phasor Estimation in the Presence of DC Offset and CT Saturation

A hybrid algorithm for phasor estimation is proposed that is immune to DC offset and current transformer (CT) saturation problems. The algorithm utilizes partial sum (PS)-based and multistage least-squares (MLS)-based methods before and after CT saturation is detected, respectively. The MLS-based me...

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Veröffentlicht in:	IEEE transactions on power delivery 2009-10, Vol.24 (4), p.1842-1849
Hauptverfasser:	Soon-Ryul Nam, Jong-Young Park, Sang-Hee Kang, Kezunovic, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Applied sciences Circuit faults Current transformer Current transformers dc offset Digital signal processors Direct current Electrical engineering. Electrical power engineering Electrical power engineering EMTP Estimates Exact sciences and technology Fault currents Faults Hardware Miscellaneous multistage least squares Offsets Overhead networks partial sum phasor estimation Phasors Power networks and lines Power transmission lines Prototypes Saturation Signal generators Signal processing algorithms Studies Transformers and inductors Waveforms
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