distribution grid; battery; optimisation; N-k analysis
Abstract :
[en] Significant major events happened in year 2020 like COVID-19 pandemic and three devastating earthquakes near capital city of Zagreb, damaging some hospitals and leading to them being overloaded. Croatian distribution system operator decided to install battery storage system in Zagreb's distribution grid. Main purpose of the battery is to improve security of supplies to essential consumers in worst-case scenario when the grid might be compromised. Location was chosen to encompass as much of hospitals complexes as possible. Using an optimisation algorithm, it was found that battery with capacity of 3.588 MWh and apparent power of 0.98 MW is able to provide three-hour autonomy for the essential consumers. Also, it is shown that when operating parallel with grid battery can lower overall losses in the by 10% while maintain minimal state of charge needed to supply the essential consumers.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > FINATRAX - Digital Financial Services and Cross-organizational Digital Transformations
Disciplines :
Computer science Electrical & electronics engineering Energy Management information systems
Author, co-author :
Kostelac, Matija; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
Barać, Bojana; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
PAVIĆ, Ivan ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > FINATRAX
Capuder, Tomislav; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
Grašo, Joško; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
Marušić, Anton; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
Koledić, Tomislav; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
Barišin, Josipa; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
Dso, Hep; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
Elektra Zagreb, Ltd; Department of Electrical Engineering, Computing University of Zagreb, Zagreb, Croatia
External co-authors :
yes
Language :
English
Title :
Optimizing Battery Storage System for N-k Security Supply of Critical Medium Voltage Distribution Network Connected End-users: Case Study of Zagreb
Original title :
[en] Optimizing Battery Storage System for N-k Security Supply of Critical Medium Voltage Distribution Network Connected End-users: Case Study of Zagreb
Publication date :
May 2022
Event name :
Proceedings of 5th SEE SDEWES 2022
Event organizer :
SDEWES
Event place :
Vlora, Albania
Event date :
22.05.2022. - 26.05.2022
Event number :
5
By request :
Yes
Audience :
International
Main work title :
Proceedings of 5th SEE SDEWES 2022 Vlorë / - , 2022, 1-10
