Naslov
Electrical Protection Selectivity in Auxiliary DC Installations in Power Plants and Substations

Autori
Skok, Srđan ; Marušić, Ante ; Tešnjak, Sejid

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of ISCAS 2003 / - Bangkok, 2003

Skup
International Symposium on Circuits and Systems

Mjesto i datum
Bangkok, Tajland, 25.05.2003. - 28.05.2003

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
DC auxiliary installations; protection; selectivity

Sažetak
The goal of this work is to present a developed adequate model that will allow analyzing, dimensioning and control of auxiliary DC installations in power plants, first of all from the protection device point of view. The original contribution of this work is contained in the following statements. A general mathematical model of auxiliary DC installations in power plants was developed in order to be used for analyzing short circuit conditions. It was concluded that the transient state during short circuit has to be taken into account. The essence of this new approach is the new mathematical model which takes into consideration not only resistances, but inductances and capacities of auxiliary DC elements as well as the active network in front of the rectifier. Based on this mathematical model, an original program package was developed and used for analyzing and dimensioning auxiliary DC installations in power plants. The results obtained by means of the program package are relevant for dimensioning all elements of auxiliary DC installations, particularly when protection devices are considered.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA