High-Precision Sensing of DC Bias in AC Grids

This paper proposes a novel method for detecting parasitic dc components in ac grids. The method uses a parallel-connected sensing reactor and a low-cost digital signal processor. From the reactor current, the algorithm derives a sum of even harmonics, considering at the same time their phase shift...

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Veröffentlicht in:	IEEE transactions on power delivery 2015-06, Vol.30 (3), p.1179-1186
Hauptverfasser:	Vukosavic, Slobodan N., Peric, Ljiljana S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Distributed power grid-connected converters Harmonic analysis Inductors Magnetic cores nonlinear magnetics power grids Power harmonic filters power system measurements power transformers Resistance Sensors voltage measurement Windings
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