@article{MTMT:34673441,
	title = {Improving power-grid systems via topological changes or how self-organized criticality can help power grids},
	url = {https://m2.mtmt.hu/api/publication/34673441},
	author = {Ódor, Géza and Papp, István and Benedek, Kristóf and Hartmann, Bálint},
	doi = {10.1103/PhysRevResearch.6.013194},
	journal-iso = {PRRESEARCH},
	journal = {PHYSICAL REVIEW RESEARCH},
	volume = {6},
	unique-id = {34673441},
	year = {2024},
	eissn = {2643-1564},
	orcid-numbers = {Ódor, Géza/0000-0001-9259-5352}
}

@article{MTMT:34506300,
	title = {Javaslatok a „predátor” jelenség hazai kezelésére. Proposals for the Domestic Management of the “Predator” Phenomenon},
	url = {https://m2.mtmt.hu/api/publication/34506300},
	author = {Kollár, László Péter and Fésüs, László and Gócza, Elen and Halmai, Péter and Hartmann, Bálint and Holl, András and Kaptay, György and Lencsés, Ákos and Makara, Gábor and Monok, István and Péli, Gábor Lajos and Sepsi, Enikő and Soós, Sándor and Tausz, Katalin and Ulbert, István},
	doi = {10.1556/2065.184.2024.1.9},
	journal-iso = {MAGYAR TUDOMÁNY},
	journal = {MAGYAR TUDOMÁNY},
	volume = {185},
	unique-id = {34506300},
	issn = {0025-0325},
	year = {2024},
	eissn = {1588-1245},
	pages = {71-81},
	orcid-numbers = {Kollár, László Péter/0000-0001-9313-2296; Holl, András/0000-0002-6873-3425; Kaptay, György/0000-0003-4419-142X; Lencsés, Ákos/0000-0003-4461-1105; Makara, Gábor/0000-0001-9220-0373; Monok, István/0000-0001-7165-0252; Sepsi, Enikő/0000-0002-0562-0271; Tausz, Katalin/0009-0003-4045-7056; Ulbert, István/0000-0001-9941-9159}
}

@article{MTMT:34479950,
	title = {A potential framework for cross-zonal reserve procurement on European power exchanges based on robust optimization},
	url = {https://m2.mtmt.hu/api/publication/34479950},
	author = {Divényi, Dániel and Sleisz, Ádám and Sőrés, Péter Márk and Csercsik, Dávid and Hartmann, Bálint},
	doi = {10.1016/j.segan.2023.101267},
	journal-iso = {SUSTAIN ENERGY GRIDS},
	journal = {SUSTAINABLE ENERGY GRIDS & NETWORKS},
	volume = {37},
	unique-id = {34479950},
	issn = {2352-4677},
	year = {2024},
	eissn = {2352-4677}
}

@inproceedings{MTMT:34562516,
	title = {Use of sensitivity factors to support congestion zoning on flexibility markets},
	url = {https://m2.mtmt.hu/api/publication/34562516},
	author = {Bereczki, Bence and Kiss, József and Hartmann, Bálint and Sőrés, Péter Márk},
	booktitle = {2023 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE)},
	doi = {10.1109/ISGTEUROPE56780.2023.10408188},
	unique-id = {34562516},
	abstract = {Distribution system operators face more and more issues due the rapid spread of intermittent renewable energy sources on distribution grids. The most significant of these issues on the Hungarian distribution grids is the excess of voltage limits. In this paper sensitivity factors are defined to connect network voltage constraints and market-based flexibility products. A simplified network model is created based on the characteristics of Hungarian distribution grids for both medium voltage and low voltage investigations. Sensitivity factors for voltage control are calculated with both active and reactive power flows. Correlations between the effects of interventions on both different branches and voltage levels are examined. It is demonstrated that the effect of active and reactive power flows is primarily defined by the impedances of the lines. It is also shown that congestion zones can be created both per branches and voltage levels on radial networks, as the cross effects are insignificant. © 2023 IEEE.},
	keywords = {Voltage control; distribution grid; sensitivity factor},
	year = {2023}
}

@inproceedings{MTMT:34562513,
	title = {Application Experiences of Low Voltage Inline Voltage Regulator with Significant Photovoltaic Generation},
	url = {https://m2.mtmt.hu/api/publication/34562513},
	author = {Vokony, István and Táczi, István and Csatár, János and Dán, András and Hartmann, Bálint and Sőrés, Péter Márk},
	booktitle = {2023 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE)},
	doi = {10.1109/ISGTEUROPE56780.2023.10408377},
	unique-id = {34562513},
	abstract = {Renewable energy generation is spreading apace worldwide, bringing integration challenges for distribution system operators. The focus of this study is to investigate the possible solutions to increase the hosting capacity of an actual low voltage (LV) feeder in Hungary. This pilot site already has significant photovoltaic (PV) generation, but more installations are expected in the near future. Simulations were carried out to compare the available technical options increasing the hosting capacity. Detailed on-site measurements were taken, which included the neutral line, to have a better understanding of the basic situation. It showed that the voltage is close to the limits with significant unbalance. Therefore, an unbalanced model was adopted with a new calculation method in order to incorporate the neutral line and the groundings. The simulations compared local PV inverter control, inline voltage regulator, tap-changing transformer and phase balancer and found the inline voltage regulator as the most effective and versatile solution for this case. A new device was developed and installed that implements an inline voltage regulator, optimized for local circumstances. Then, a longer series of measurements were taken which proved the effectiveness of the unit, showing that it can be a cost-effective grid development alternative to grid reinforcement. © 2023 IEEE.},
	keywords = {case study; ASYMMETRY; low voltage; inline voltage regulator},
	year = {2023},
	orcid-numbers = {Táczi, István/0000-0002-0835-0481; Csatár, János/0000-0003-4430-9280}
}

@article{MTMT:34536297,
	title = {Exploration of Li-Ion Batteries during a Long-Term Heat Endurance Test Using 3D Temporal Microcomputed Tomography Investigation},
	url = {https://m2.mtmt.hu/api/publication/34536297},
	author = {Ballai, Gergő and Sőrés, Milán Attila and Vásárhelyi, Lívia and Szenti, Imre and Kun, Róbert and Hartmann, Bálint and Sebők, Dániel and Farkas, Ferenc and Zahoor, A. and Mao, G. and Sápi, András and Kukovecz, Ákos and Kónya, Zoltán},
	doi = {10.1002/ente.202300207},
	journal-iso = {ENERGY TECHNOL-GER},
	journal = {ENERGY TECHNOLOGY},
	volume = {11},
	unique-id = {34536297},
	issn = {2194-4288},
	year = {2023},
	eissn = {2194-4296},
	orcid-numbers = {Vásárhelyi, Lívia/0000-0001-8943-9500; Sebők, Dániel/0000-0001-9769-5598; Farkas, Ferenc/0000-0003-4508-7480; Sápi, András/0000-0001-6557-0731; Kukovecz, Ákos/0000-0003-0716-9557; Kónya, Zoltán/0000-0002-9406-8596}
}

@inproceedings{MTMT:34516461,
	title = {All models are wrong, but some are useful: an exploration of confidence},
	url = {https://m2.mtmt.hu/api/publication/34516461},
	author = {Geelen, D. and Barta, V. and Hartvigsson, E. and van, der Mei A. and Doomernik, J.-P. and Pastor, R. and Hartmann, Bálint},
	booktitle = {27th International Conference on Electricity Distribution (CIRED 2023)},
	doi = {10.1049/icp.2023.1123},
	unique-id = {34516461},
	abstract = {The subject of this paper is confidence in model outcomes used in the planning and operation of power grids. An important factor in the validity of models is that only a limited number of context variables can be taken into account, while at the same time the context in which we operate is changing rapidly and unexpectedly. Considering the quickly changing and complex context we operate in, the question arises how modelers and users of model outcomes deal with potentially massively changing conditions and input parameters in practice. This exploratory research used interviews to gain insight into this issue. The main outcomes are that modelling of current situation is observed as high, for short-term medium to high and long-term low to medium. © The Institution of Engineering and Technology 2023.},
	keywords = {exploratory research; Input parameter; Power grids; Current situation; Gain insight; Condition parameters; Context variables},
	year = {2023},
	pages = {2553-2557}
}

@inproceedings{MTMT:34516459,
	title = {FORECASTING FOR ELECTRICITY GRID PLANNING: CURRENT CHALLENGES AND FUTURE IMPROVEMENTS},
	url = {https://m2.mtmt.hu/api/publication/34516459},
	author = {van, der Mei A. and Hartvigsson, E. and Geelen, D. and Hartmann, Bálint and Pastor, R. and Doomernik, J.-P.},
	booktitle = {27th International Conference on Electricity Distribution (CIRED 2023)},
	doi = {10.1049/icp.2023.0870},
	unique-id = {34516459},
	abstract = {Large changes in production and consumption of electricity poses a challenge for grid operators how to operate and plan the grid. Forecasting future demand and production is one way to reduce investment risks. This study investigates the perceived challenges and opportunities of forecasting for grid planning and operation. A majority of questionnaire respondents indicate that the uncertainty in their forecasts is high or very high and that confidence in the forecasts is only medium, and medium-low for long-term forecasts. Input data (amount, quality, handling etc) is seen as the largest challenge, while new, advanced models are seen as the biggest future improvement possibility. © The Institution of Engineering and Technology 2023.},
	keywords = {Forecasting; UNCERTAINTY; Investments; Future improvements; Production and consumption; 'current; Electricity grids; grid planning; Long-term forecast; grid operation; Grid operators; Investment risks},
	year = {2023},
	pages = {3255-3259}
}

@inproceedings{MTMT:34431571,
	title = {Nátrium-kén akkumulátor, mint hálózati energiatároló},
	url = {https://m2.mtmt.hu/api/publication/34431571},
	author = {Sőrés, Milán Attila and Kövesdi, Roland and Hartmann, Bálint},
	booktitle = {XIII. Mechwart András Ifjúsági Találkozó: Konferenciakiadvány},
	doi = {10.54232/MAIT.2023_10},
	unique-id = {34431571},
	year = {2023},
	pages = {118-127}
}

@inproceedings{MTMT:34431562,
	title = {Publikus villamosautó-töltőállomások területi elemzése},
	url = {https://m2.mtmt.hu/api/publication/34431562},
	author = {Ludmann, Levente and Mátrai, Tamás and Hartmann, Bálint},
	booktitle = {XIII. Mechwart András Ifjúsági Találkozó: Konferenciakiadvány},
	doi = {10.54232/MAIT.2023_7},
	unique-id = {34431562},
	year = {2023},
	pages = {88-95}
}