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Published Article / ENY-ARTICLE-2008-071

On-line determination of Symmetrical Components by Sampling

Eichhorn, K F (University of Erlangen-Nuremberg) ; Lobos, T (University of Erlangen-Nuremberg)


Abstract: Symmetrical components of currents and voltages are used for the performance analysis of three-phase power systems (positive-sequence component) and for protection. This paper introduces different algorithms permitting to determine in real time the symmetrical components from few sampled triplets of voltages or currents. By using elaborated algorithms both parasitic harmonics and transients can be suppressed. Finally the attention is given to a general approach to the implementation of a algorithm with a pilot multi-processor equipment.

Keyword(s): symmetrical components ; protection ; multi-processor device
Note: Eighth Power Systems Computation Conference, PSCC, Helsinki, Finland, 19-24 Aug 1984, pp. 1155-1162

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Record created 2008-03-14, last modified 2008-03-23

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