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master's thesis
Metode za ublažavanje viših harmonika u niskonaponskoj mreži
2021. urn:nbn:hr:200:088821
Primorac, Tomislav
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Power Engineering
Electromagnetic Compatibility Laboratory

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Primorac, T. (2021). Metode za ublažavanje viših harmonika u niskonaponskoj mreži (Master's thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:088821

Primorac, Tomislav. "Metode za ublažavanje viših harmonika u niskonaponskoj mreži." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2021. https://urn.nsk.hr/urn:nbn:hr:200:088821

Primorac, Tomislav. "Metode za ublažavanje viših harmonika u niskonaponskoj mreži." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2021. https://urn.nsk.hr/urn:nbn:hr:200:088821

Primorac, T. (2021). 'Metode za ublažavanje viših harmonika u niskonaponskoj mreži', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 30 January 2023, https://urn.nsk.hr/urn:nbn:hr:200:088821

Primorac T. Metode za ublažavanje viših harmonika u niskonaponskoj mreži [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2021 [cited 2023 January 30] Available at: https://urn.nsk.hr/urn:nbn:hr:200:088821

T. Primorac, "Metode za ublažavanje viših harmonika u niskonaponskoj mreži", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:200:088821

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Metadata
TitleMetode za ublažavanje viših harmonika u niskonaponskoj mreži
Title (english)Mitigation Methods of Harmonics in Low Voltage Network
AuthorTomislav Primorac
MentorZvonimir Klaić (mentor)
MentorMario Primorac (sumentor)
Committee memberZvonimir Klaić (predsjednik povjerenstva)
Committee memberKrešimir Fekete (član povjerenstva)
Committee memberRužica Kljajić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Power Engineering)
(Electromagnetic Compatibility Laboratory)
Osijek
Defense date and country2021-10-13, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
Rad definira pojam viših harmonika te objašnjava negativne utjecaje viših harmonika na sve uređaje i čimbenike u elektroenergetskom sustavu. Također, prikazani su i pokazatelji kojima se može kvantificirati određeni harmonik te njegov utjecaj u mreži. Objašnjeno je koji uređaji generiraju više harmonike, prikazane su tehnike modeliranja viših harmonika te je pojašnjeno pri kojim uvjetima vrijede različiti modeli. Nadalje, prikazani su načini modeliranja nelinearnih opterećenja te topologije takvih uređaja. Predstavljene su metode za ublažavanje viših harmonika. Norme koje obuhvaćaju kvalitetu električne energije kojima pripadaju ograničenja pojedinih harmonika također su sadržane u ovom radu. Praktični dio rada sadržava simulaciju u programskom paketu DigSilent PowerFactory s podatcima koji su dobiveni mjerenjem kvalitete električne energije prema normi HRN EN 50160:2012 na dva mjerna mjesta u ruralnom području u blizini Osijeka. Simulacija se sastoji od četiri različita scenarija te su uspoređene fizikalne veličine (generirane programskim paketom) koje nam prikazuju utjecaj viših harmonika na elektroenergetsku mrežu. Dobiveni rezultati simulacija ukazuju da su najbolji rezultati dobiveni kada je aktivni filter snage spojen na kraj izvoda jer su tada najmanje vrijednosti viših harmonika te ukupnog harmonijskog izobličenja. U radu je objašnjeno zašto se ne priključuje više takvih filtera u mrežu ovakve topologije.
Abstract (english)
This thesis describes the concept of harmonics and explains the negative effects of harmonics on all devices and components in the power system, presents indicators that can quantify a particular harmonic and its impact in the network. It is explained which devices generate harmonics, the techniques of modeling harmonics are presented, and the conditions under which different models are valid are explained. Furthermore, the ways of modeling nonlinear loads and the topology of such devices are presented. Methods for mitigating harmonics are presented. Standards that include the quality of elecrtical energy, which includes the limitations of individual harmonics, are also contained in this thesis. The practical part of this thesis contains a simulation in the software package DigSilent PowerFactory with data obtained by measuring the quality of electrical energy according to HRN EN 50160: 2012 at two measuring points in a rural area near the city of Osijek. The simulation consists of four different scenarios and compares the physical quantities (generated by software) that show the impact of harmonics on the power grid. It was concluded that the best results were obtained when the active power filter was connected to the end of the lead because then the values of harmonics and total harmonic distortion were the lowest and it was explained why no more such filters are connected to the network of this topology.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:088821
Study programmeTitle: Graduate University Study Programme in Electrical Engineering; specializations in: Communications and Informatics, Power Engineering
Course: Power Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike (magistar/magistra inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2021-11-24 12:05:47