Electrical Transients Monitoring via Higher-Order Cumulants and Competitive Layers

• Autorzy: González de la Rosa J. , Moreno Munoz A.

Warianty tytułu

PL

Monitorownie stanów przejściowych z użyciem kumulant wyższych rzędów i warstw z rywalizacją

• Języki publikacji: EN

Abstrakty

EN

This work deals with Power Quality (PQ) transients detection and characterization using higher-order sliding cumulants, whose maxima and minima are the coordinates of two-dimensional feature vectors. We recall the former research results which discriminate between two types of transients (impulsive and oscillatory) using third and fourth-order cumulants. Then, we use fourth-order cumulants to differentiate transients from ”healthy” signals and other anomalous features in the power-line sine. The classification strategy is based in competitive layers. The results show that the measured vectors are classified into clearly differentiated clusters in the feature space. The experience sets the foundations of an automatic procedure for PQ event detection.

PL

W artykule poruszono zagadnienia jakości energii, zwłaszcza wykrywania stanów przejściowych i ich charakterystykę z wykorzystaniem kumulant wyższych rzędów. Przywołano wyniki poprzednich badań rozróżniających dwa typy stanów przejściowych (impulsywne i oscylacyjne), do których użyto kumulant trzeciego- i czwartego rzędu. Kumulanty czwartego rzędu wykorzystywano do różniczkowania stanów przejściowych występujących w sinusoidzie linii. Mierzone wektory są klasyfikowane w wyraźnie różniące się grupy w przestrzeni właściwości.

Słowa kluczowe

EN

higher-order statistics; neural classifiers; power-quality analysis; transient categorization

PL

statystyki wyższego rzędu; klasyfikatory neuronowe; analiza jakości energii; kategoryzacja stanów przejściowych

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2009
• Tom: R. 85, nr 10
• Strony: 284--289
• Opis fizyczny: Bibliogr. 18 poz., wykr.

Twórcy

autor

González de la Rosa J.

autor

Moreno Munoz A.

• Univ. of Cádiz. EPSA. Av. Ramón Puyol S/N. E-11202-Algeciras-Cádiz-Spain,

Bibliografia

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