Pregled bibliografske jedinice broj: 763453
Lightning Overvoltage Performance of 110 kV Air- Insulated Substation
Lightning Overvoltage Performance of 110 kV Air- Insulated Substation // International Conference on Power Systems Transients (IPST2015)
Cavtat, Hrvatska, 2015. str. 1-7 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 763453 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Lightning Overvoltage Performance of 110 kV Air- Insulated Substation
Autori
Filipović-Grčić, Božidar ; Franc, Bojan ; Uglešić, Ivo ; Milardić, Viktor ; Tokić, Amir
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
International Conference on Power Systems Transients (IPST2015)
/ - , 2015, 1-7
Skup
International Conference on Power Systems Transients (IPST 2015)
Mjesto i datum
Cavtat, Hrvatska, 15.06.2015. - 18.06.2015
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
lightning overvoltages ; overvoltage protection ; 110 kV air-insulated substation ; EMTP simulations ; surge arrester energy ; insulation coordination ; lightning location system
Sažetak
This paper presents the analysis of lightning overvoltage performance of 110 kV air-insulated substation connecting hydro power plant with the rest of the power system. The demonstrated procedure includes the application of a three- dimensional electro-geometric model of transmission line entering the substation, description of modeling process and EMTP simulations. Different overvoltage protection schemes were discussed including station surge arresters with different rated voltages and energy classes. The installation of line surge arresters on the first towers of the transmission line entering the substation for the improvement of the lightning performance of substation was analyzed. Lightning parameters derived from lightning location system observations around 110 kV substation were analyzed and compared to ones used in literature and calculations. For this purpose an algorithm for the assessment of the lightning flash multiplicity was developed in order to determine the current amplitude probability distribution of the first and subsequent cloud to ground strokes. Energy absorbed by surge arresters due to multiple strokes was determined and an optimal overvoltage protection scheme was proposed.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
POVEZANOST RADA
Projekti:
HRZZ-IP-2013-11-9299 - Razvoj naprednih visokonaponskih sustava primjenom novih informacijskih i komunikacijskih tehnologija (DAHVAT) (Uglešić, Ivo, HRZZ ) ( CroRIS)
Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb
