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doctoral thesis
Karakterizacija mjernih instrumenata i preciznih širokopojasnih pretvornika struje i napona u sklopu digitalnoga vatmetra.
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2020. urn:nbn:hr:168:549193
Konjevod, Jure
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electrical Engineering Fundamentals and Measurements

Institutional repository: FER Repository

Cite this document

Konjevod, J. (2020). Karakterizacija mjernih instrumenata i preciznih širokopojasnih pretvornika struje i napona u sklopu digitalnoga vatmetra. (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:549193

Konjevod, Jure. "Karakterizacija mjernih instrumenata i preciznih širokopojasnih pretvornika struje i napona u sklopu digitalnoga vatmetra.." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2020. https://urn.nsk.hr/urn:nbn:hr:168:549193

Konjevod, Jure. "Karakterizacija mjernih instrumenata i preciznih širokopojasnih pretvornika struje i napona u sklopu digitalnoga vatmetra.." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2020. https://urn.nsk.hr/urn:nbn:hr:168:549193

Konjevod, J. (2020). 'Karakterizacija mjernih instrumenata i preciznih širokopojasnih pretvornika struje i napona u sklopu digitalnoga vatmetra.', Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 27 December 2024, https://urn.nsk.hr/urn:nbn:hr:168:549193

Konjevod J. Karakterizacija mjernih instrumenata i preciznih širokopojasnih pretvornika struje i napona u sklopu digitalnoga vatmetra. [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2020 [cited 2024 December 27] Available at: https://urn.nsk.hr/urn:nbn:hr:168:549193

J. Konjevod, "Karakterizacija mjernih instrumenata i preciznih širokopojasnih pretvornika struje i napona u sklopu digitalnoga vatmetra.", Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:168:549193

Metadata
TitleKarakterizacija mjernih instrumenata i preciznih širokopojasnih pretvornika struje i napona u sklopu digitalnoga vatmetra.
Title (english)Characterization of digitizers and precise wideband current and voltage transducers in digital sampling wattmeter.
AuthorJure Konjevod
MentorRoman Malarić (mentor)
Committee memberRoman Malarić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Electrical Engineering Fundamentals and Measurements)
Zagreb
Defense date and country2020, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electronics
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
Precizno mjerenje električne snage obično se provodi u nacionalnim mjeriteljskim institutima. U tu svrhu uobičajeno se koristi širokopojasni digitalni vatmetar te je u ovoj doktorskoj disertaciji stavljen naglasak na karakterizaciju, ispitivanje i usporedbu komponenti digitalnoga vatmetra za precizno mjerenje električne snage. Karakterizirani su precizni širokopojasni pretvornici struje i napona, a relevantni mjerni instrumenti su ispitani i uspoređeni u sklopu digitalnoga vatmetra. Osim toga, dan je pregled svake pojedine spomenute komponente sustava kao i opis upotrijebljenih mjernih metoda za njihovu karakterizaciju i usporedbu. Spomenute komponente od kojih se sastoji digitalni vatmetar uključuju: sustav za proizvodnju električne snage (kalibrator snage ili kalibrator struje i napona), pretvornik struje (strujni shunt), pretvornik napona (naponsko djelilo), mjerne instrumente (digitalni voltmetri i/ili mjerne kartice). Također, uz sve navedene sklopovske komponente, gotovo uvijek je potrebno automatizirati mjerne procedure te pohraniti mjerne podatke kako bi mogli biti obrađeni tj. potrebno je provesti analizu podataka koristeći tzv. algoritme za korekciju analiziranih signala. Uz sve navedeno, neizostavan dio mjeriteljskih procedura i djelovanja je provesti analizu mjerne nesigurnosti za određene mjerne sustave, pa je tako napravljeno i u ovoj doktorskoj disertaciji.
Abstract (english)
The precise electric power measurement is usually done in national metrology institutes and sampling power meter is usually used for that purpose. The emphasis in this doctoral thesis is on the characterization, testing and comparison of digital sampling wattmeter components. The current and voltage transducers were characterized (dc and ac characterization) and sampling devices (digitizers) were tested and compared. In addition, every single sampling power meter component was reviewed and all measurement methods have been described in detail. Sampling power meter components include: power generation system (power calibrator or voltage-current calibrator), current transducer (current shunt), voltage transducer (voltage divider) and sampling devices (digital voltmeters or measurement cards). Acquisition of measurement data were automatized and processed with correction algorithms to obtain relevant electric parameters: voltage amplitude, current amplitude and phase difference between voltage and current. Consequently, the results were compared to get insight into performances of the tested digitizers. The measurement uncertainty has been analysed and based on comparison results, a general strategy for testing sampling devices within the application of the sampling power meter has been proposed. Also, based on sampling devices comparison, advantages and disadvantages of their application have been proposed.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:549193
Promotion2020
Study programmeTitle: Doctoral study programme "Electrical Engineering and Computing"
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, po-dručje tehničkih znanosti (doktor/doktorica znanosti, po-dručje tehničkih znanosti)
Type of resourceText
Extent119 str. ; 30 cm
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2022-10-21
Terms of useLicence In copyright icon
Created on2020-11-19 11:57:36