Creation of simulation model for load flow and short circuit calculations in transmission system

Prilikom planiranja razvoja elektroenergetske mreže potrebno je raditi razne proračune i analize pogona postojećeg elektroenergetskog sustava. Da bi se predmetne analize mogle provesti potrebno je predmetni sustav modelirati na odgovarajući način. U ovom radu je izrađen simulacijski model prijenosnog sustava jugoistočne Europe pomoću programskog paketa NEPLAN. Težište je na proračunu strujnih i naponskih prilika, tj. na proračunima tokova snaga i kratkih spojeva na razvijenom modelu za barem jedno pogonsko stanje.During development planning of electrical power grid, it is necessary to perform various operating calculations and analysis of current electrical power system. In order to carry out the analysis, it is necessary to model the system in a proper manner. In this thesis, a simulation model of Southeastern Europe transmission grid was created with NEPLAN software package. The emphasis is on calculation of current and voltage conditions, that is, load flow and short circuit calculations on a developed model for at least one operating condition