@article{
author = "Rajaković, Nikola and Ivanović, Bojan and Batas Bjelić, Ilija and Rajić, Tomislav",
year = "2023",
abstract = "Planiranje nacionalnog energetskog sistema preko sagledavanja alternativnih investicionih odluka kroz godišnje simulacije (korišćenjem alata EnergyPlan) zbog svoje (kombinatorne) složenosti ostavlja malo prostora za eksplicitnost u pogledu uticaja mreže na planerske odluke i zato postoji potreba da se sagledaju i tokovi snaga u mreži. Investicione odluke koje se donose ostaju sa dozom nedorečenosti u tehničkom pogledu, koja se ovom spregom može otkloniti. Alat CASE se koristi za brojne sistemske proračune tokova snaga, struja kratkog spoja, rednih kvarova, stabilnosti na male poremećaje i tranzijentne stabilnosti. U programu su implementirani i proračuni koji se baziraju na proračunu tokova snaga: redukcija mreže, sigurnost (N-1 i N-X), NTC i OTDF/PTDF. Sprega programa CASE i EnergyPlan je ostvarena preko izlaznog tekstualnog fajla EnergyPlan-a koji po satima hronološki u toku cele godine, sadrži razdvojenu ukupnu proizvodnju elektrana po tipu, ukupan konzum sistema podeljen na nekoliko podtipova, izvoz i uvoz iz regulacione oblasti. CASE učitava izlazni fajl EnergyPlan-a i ukupnu proizvodnju po tipovima elektrana CASE raspodeljuje na svaku pojedinačnu elektranu u sistemu prema unapred definisanim koeficijentima raspodele, dok ukupan konzum raspodeljuje proporcionalno postojećim opterećenjima po čvorovima mreže. Tako se za svaki sat u toku godine definiše model sistema za proračun tokova snaga. Rezultati proračuna za svaki sat se čuvaju u operativnoj memoriji CASE programa i mogu se sortirati po najopterećenijem elementu sistema, najvećoj razmeni posmatrane regulacione oblasti, gubicima u regulacionoj oblasti, proizvodnji po određenom tipu elektrane, konzumu, itd. Na ovaj način je omogućeno da se efikasno analizira rad sistema po različitim kriterijumima. Cilj ovog rada je pre svega realizacija sprege dva softverska alata, koja do sada nije bila ostvarena, kao i prikaz nekih od najznačajnih rezultata izabranih među brojnim opcijama sortiranja stanja. Rezultat rada je integracija softverskih alata koja služi na dobrobit planerskih aktivnosti u smislu njihove tehničke izvodljivosti, odnosno da preciznije ispita da li je neki perspektivni scenario realan sa aspekta tokova snaga u prenosnoj mreži., Planning of the national energy system by looking at alternative investment decisions through annual simulations (using the EnergyPlan tool) due to its (combinatorial) complexity leaves little room for explicitness regarding the network's impact on planning decisions and therefore there is a need to look at the power flows in the network. The investment decisions that are made remain with a degree of vagueness in the technical aspect, which can be removed with this connection. The CASE tool is used for numerous system calculations of power flows, short- circuit currents, series faults, stability to small disturbances and transient stability. Calculations based on the calculation of power flows are also implemented in the program: network reduction, security (N-1 and N-X), NTC and OTDF/PTDF. The coupling of the CASE program and EnergyPlan was achieved through the output text file of EnergyPlan, which contains the total production of power plants by type, the total consumption of the system divided into several subtypes, export and import from the regulatory area. CASE loads the output file of EnergyPlan and distributes the total production by power plant types to each individual power plant in the system according to predefined distribution coefficients, while the total consumption is distributed proportionally to the existing loads by network nodes. Thus, a system model for power flow calculation is defined for each hour of the year. Calculation results for each hour are stored in the working memory of the CASE program and can be sorted by the most loaded element of the system, the largest exchange of the observed control area, losses in the control area, production by a certain type of power plant, consumption, etc. In this way, it is possible to efficiently analyse the operation of the system according to different criteria. First of all, the goal of this work is to couple the two software tools, which has not been realized until now, as well as the presentation of some of the most significant results selected from among the numerous options of state sorting. The result of the work is the integration of software tools that serve the benefit of planning activities in terms of their technical feasibility, that is, to examine more precisely whether a prospective scenario is realistic from the aspect of power flows in transmission grid.",
publisher = "Beograd : Univerzitet u Beogradu - Elektrotehnički fakultet, Beograd : Univerzitet u Beogradu - Mašinski fakultet, Kragujevac : Univerzitet u Kragujevcu, Fakultet inženjerskih nauka",
journal = "Energija, ekonomija, ekologija",
title = "Sprega simulacionog planerskog alata sa alatom za proračun tokova snaga: Studija slučaja Republike Srbije",
pages = "16-21",
volume = "25",
number = "2",
doi = "10.46793/EEE23-2.16R",
url = "https://hdl.handle.net/21.15107/rcub_dais_16178"
}
