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Teorija realnog integrisanog merila harmonika

Theory of the Real Integrated Harmonic Instrument

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2013
DisertacijaAntic - Disertacija - Teorija realnog integrisanog merila harmonika.pdf (3.404Mb)
Author
Antić, Boris
Mentor
Vujičić, Vladimir
Committee members
Župunski, Ivan
Kovačević, Dragan
Milovančev, Slobodan
Mitrović, Zoran
Vujičić, Vladimir
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Abstract
Jedan od najvažnijih parametara kvaliteta električne energije u distributivnoj mreži je harmonijski sastav naponskih i strujnih signala. U disertaciji je razmatrano integrisano merilo harmonika, na principu stohastičke rezonance. Uopštenje postojećeg teorijskog modela rada merila, ostvareno je ukidanjem pojedinih pretpostavki o idealizovanim uslovima rada: idealni intervali merenja, poznata i nepromenljiva osnovna učestanost, idelane diterske sekvence. Na osnovu teorijske analize, simulacija i praktičnih merenja, date su procene reda veličine za svaku od navedenih grešaka. Na kraju je dato šest preporuka za modifikaciju hardvera i načine obrade rezultata merenja, koje mogu značajno poboljšati metrološke performanse budućih generacija ovih merila.
One of the most important power quality indicators in power grids is the harmonic composition of voltage and current signals. In this thesis an integrated harmonic instrument has been considered, which operates on the principle of the stochastic resonance. Generalization of the existing theoretical model of the instrument was realized by terminating several idealistic assumptions: perfect measurement intervals, known and stable fundamental frequency, ideal dithering sequences. Based on the performed theoretical analysis, simulations and practical measurements, estimates have been given for each of the measurement error sources. Finally, six recommendations were given for the modification of the hardware and the results processing in order to achieve significantly better metrological performances in future generations of this instrument.
Faculty:
University of Novi Sad, Faculty of Technical Science
Date:
27-06-2013
Projects:
  • Integrated system for detection and estimation of fire development by real-time monitoring of critical parameters (RS-44003)
Keywords:
Stohastičko merenje / Stochastic measurements / električna snaga / električna energija / tačnost / preciznost / Furijeova transformacija / electrical power / electrical energy / accuracy / precision / Fourier’s transform
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http://www.cris.uns.ac.rs/DownloadFileServlet/DisertacijaAntic%20-%20Disertacija%20-%20Teorija%20realnog%20integrisanog%20merila%20harmonika.pdf?controlNumber=(BISIS)83679&fileName=Antic%20-%20Disertacija%20-%20Teorija%20realnog%20integrisanog%20merila%20harmonika.pdf&id=1071&source=NaRDuS&language=sr
http://nardus.mpn.gov.rs/handle/123456789/1902
http://www.cris.uns.ac.rs/record.jsf?recordId=83679&source=NaRDuS&language=sr
http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisijeObrazac%206%20-%20Izvestaj%20o%20oceni%20disertacije%20-%20Boris%20Antic.pdf?controlNumber=(BISIS)83679&fileName=Obrazac%206%20-%20Izvestaj%20o%20oceni%20disertacije%20-%20Boris%20Antic.pdf&id=1072&source=NaRDuS&language=sr

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