Analysis of flickermeter’s signal chain for input signal with two sub/interharmonics

• Autorzy: Wilczyński G.

Warianty tytułu

PL

Analiza toru sygnałowego flickermetru dla napie¸cia wej ´sciowego z dwiema składowymi sub/interharmonicznymi

• Języki publikacji: EN

Abstrakty

EN

Paper presents the analysis of the IEC flickermeter’s signal chain operation for the input voltage consisting of three components: one of fundamental frequency and two sub/interharmonics. A model of an IEC flickermeter has been built consisting of a set of equations describing the dependency of Pst indicator from the amplitude and phase of one of the sub/interharmonics. The flicker occurrence for the case of sub/interharmonics presence was explained (even for frequenciesmuch greater than the power frequency). There have been assigned the sub/interharmonics’ frequencies for which the phase dependencies have to be taken into account while estimating the Pst indicator. The influence of simultaneous presence of both harmonic and sub/interharmonic components on the result of Pst indicator measure has also been described. The comparison with the results of the numerical simulations proved the described analysis of the IEC flickermeter’s signal chain is right.

PL

W pracy przedstawiono analizę działania toru sygnałowego miernika migotania światła (potocznie nazywanego flickermetrem) dla napięcia wejściowego składającego się z trzech składników: o częstotliwości podstawowej oraz dwóch interharmonicznych. Zbudowano model flickermetru składający się z zestawu równań opisujących zależność wskaźnika Pst od amplitudy i fazy jednej z interharmonicznych. Wyznaczono częstotliwości interharmonicznych dla których niezbędne jest uwzględnienie zależności fazowych przy wyznaczaniu wskaźnika Pst. Modyfikując opis toru sygnałowego dla dwóch interharmonicznych opisano wpływ jednoczesnego występowania składników harmonicznego i interharmonicznego na wynik pomiaru wskaźnika Pst. Na podstawie porównania z wynikami symulacji numerycznych stwierdzono prawidłowość przedstawionej analizy toru sygnałowego flickermetru.

Słowa kluczowe

EN

power quality; IEC flickermeter; Pst indicator; interharmonics; subharmonics; harmonics; modeling

PL

jakość napięcia; flikermetr; wskaźnik Pst; interharmoniczne; subharmoniczne; harmoniczne; modelowanie

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2010
• Tom: R. 86, nr 4
• Strony: 328--335
• Opis fizyczny: Bibliogr. 27 poz., rys., wykr.

Twórcy

autor

Wilczyński G.

• Institute of Electrical Engineering and Electronics, Poznań University of Technology ul. Piotrowo 3A, 60-965 Poznań,

Bibliografia

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