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master's thesis
Utjecaj nelinearnih opterećenja na niskonaponsku mrežu
Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2020. urn:nbn:hr:200:136965
Copić, Petra
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Power Engineering
Electromagnetic Compatibility Laboratory

Institutional repository: Faculty of Electrical Engineering, Computer Science and Information Technology Osijek

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Copić, P. (2020). Utjecaj nelinearnih opterećenja na niskonaponsku mrežu (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:136965

Copić, Petra. "Utjecaj nelinearnih opterećenja na niskonaponsku mrežu." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2020. https://urn.nsk.hr/urn:nbn:hr:200:136965

Copić, Petra. "Utjecaj nelinearnih opterećenja na niskonaponsku mrežu." Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2020. https://urn.nsk.hr/urn:nbn:hr:200:136965

Copić, P. (2020). 'Utjecaj nelinearnih opterećenja na niskonaponsku mrežu', Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 27 November 2024, https://urn.nsk.hr/urn:nbn:hr:200:136965

Copić P. Utjecaj nelinearnih opterećenja na niskonaponsku mrežu [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2020 [cited 2024 November 27] Available at: https://urn.nsk.hr/urn:nbn:hr:200:136965

P. Copić, "Utjecaj nelinearnih opterećenja na niskonaponsku mrežu", Master's thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:200:136965

Metadata
TitleUtjecaj nelinearnih opterećenja na niskonaponsku mrežu
Title (english)Influence of nonlinear loads on a low voltage distribution network
AuthorPetra Copić
MentorZvonimir Klaić (mentor)
Committee memberZvonimir Klaić (predsjednik povjerenstva)
Committee memberKrešimir Fekete (član povjerenstva)
Committee memberZorislav Kraus (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 country2020-10-13, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
Upotrebom nelinearnih trošila u kućanstvima i industriji dolazi do izobličenja sinusnog valnog signala. Valni oblik struje potrošača ne prati promjenu napona mreže. Možemo zaključiti da je odudaranje sinusnog valnog oblika od idealnog valnog oblika ustvari harmonik. Harmonik je ustvari neželjena komponenta izobličenog sinusnog vala. Harmonici u NN distribucijskoj mreži pogoršavaju kvalitetu električne energije , smanjuju faktor snage, povećavaju izobličenost napona i gubitke. Zbog toga je potrebno uvesti metode koje sprječavaju pojavu harmonika jer će u budućnosti predstavljati veliki problem za distribucijsku mrežu. Metoda koja se najčešće koristi u NN distribucijskoj mreži je primjena aktivnih i pasivnih filtera. U praktičnom dijelu rada promatrani su harmonici u gradskoj četvrti sa 35 obiteljskih kuća. Iz rezultata mjerenja je vidljivo da najviše smetnji u NN distribucijskoj mreži uzrokuju treći i peti harmonik koje je preporučljivo kompenzirati sa filterima.
Abstract (english)
The use of nonlinear consumers in households and industry distorts the sinus wave signal. The waveform of the consumer current does not follow the change of the distribution network voltage. We can conclude that the deviation of the sinus waveform from the ideal waveform is actually a harmonic. A harmonic is actually an unwanted component of a distorted sinus wave. Harmonics in the LV distribution network worsen the quality of electricity, reduce the power factor, increase voltage distortion and losses. Therefore, it is necessary to introduce methods that prevent the appearance of harmonics, because in the future it will be a big problem for the distribution network. The most commonly used method in the LV distribution network is the application of active and passive filters. In the practical part of the paper, harmonics were observed in the city district with 35 family houses. From the measurement results, it is evident that most disturbances in the LV distribution network are caused by the third and fifth harmonics, which are recommended to be compensated with filters.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:136965
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 on2020-12-07 11:16:21