@article{MTMT:34684887, title = {Interfész algoritmusok vizsgálata Power-Hardware-in-the-Loop szimulációs környezetben}, url = {https://m2.mtmt.hu/api/publication/34684887}, author = {Rózsa, Máté and Csatár, János}, journal-iso = {ELEKTROTECHNIKA}, journal = {ELEKTROTECHNIKA}, volume = {116}, unique-id = {34684887}, issn = {0367-0708}, year = {2023}, pages = {21-24}, orcid-numbers = {Csatár, János/0000-0003-4430-9280} } @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} } @inproceedings{MTMT:34431579, title = {Interfész algoritmusok vizsgálata Power-Hardware-in-the-Loop szimulációs környezetben}, url = {https://m2.mtmt.hu/api/publication/34431579}, author = {Rózsa, Máté and Csatár, János}, booktitle = {XIII. Mechwart András Ifjúsági Találkozó: Konferenciakiadvány}, doi = {10.54232/MAIT.2023_9}, unique-id = {34431579}, year = {2023}, pages = {105-117}, orcid-numbers = {Csatár, János/0000-0003-4430-9280} } @article{MTMT:34157686, title = {Holistic attack methods against power systems using the IEC 60870-5-104 protocol}, url = {https://m2.mtmt.hu/api/publication/34157686}, author = {Csatár, János and Péter, György and Holczer, Tamás}, doi = {10.36244/ICJ.2023.3.5}, journal-iso = {INFOCOMM J}, journal = {INFOCOMMUNICATIONS JOURNAL}, volume = {15}, unique-id = {34157686}, issn = {2061-2079}, year = {2023}, eissn = {2061-2125}, pages = {42-53}, orcid-numbers = {Csatár, János/0000-0003-4430-9280; Holczer, Tamás/0000-0003-0953-5397} } @inproceedings{MTMT:33113374, title = {Developing a residential consumption forecast method}, url = {https://m2.mtmt.hu/api/publication/33113374}, author = {Hadar, A. and Csatár, János}, booktitle = {2022 8th International Youth Conference on Energy (IYCE)}, doi = {10.1109/IYCE54153.2022.9857536}, unique-id = {33113374}, abstract = {Microgrids are going to take a major part of the future electricity distribution system, where they will form a local, controllable entity, consisting of various consumers, local energy producers and network energy storages. To be able plan, forecast and calculate the consumption and regulation energy values in advance by an algorithm - it is very important to have an accurate forecast, which takes the PV production too, into consideration. However, because of the low number of consumers and prosumers - the ordinary forecasting methods - which are applied in the transmission system-level consumption prediction - are not easily applicable in this situation, therefore a new approach is recommended. This paper focuses on developing such a method, that is capable of predicting a microgrid's electricity consumption in a D-1 and D-2 basis either from only the historical consumption data, or the history data and externalities. To do this, several real-life consumption data packages are analyzed and used to train a neural network. This network's parameters are subject to change throughout the process, according to the characteristics of the actual data, which is being predicted by it. Furthermore, in order to validate and evaluate the neural network's predictions - a classical ARIMA prediction model is also implemented and evaluated.}, year = {2022}, orcid-numbers = {Csatár, János/0000-0003-4430-9280} } @article{MTMT:32081005, title = {Co‐simulation framework for calculating balancing energy needs of a microgrid with renewable energy penetration}, url = {https://m2.mtmt.hu/api/publication/32081005}, author = {Sinkovics, Bálint and Kiss, József and Polgári, Beáta and Csatár, János}, doi = {10.1002/er.6977}, journal-iso = {INT J ENERG RES}, journal = {INTERNATIONAL JOURNAL OF ENERGY RESEARCH}, volume = {45}, unique-id = {32081005}, issn = {0363-907X}, year = {2021}, eissn = {1099-114X}, pages = {18631-18643}, orcid-numbers = {Csatár, János/0000-0003-4430-9280} } @book{MTMT:32462794, title = {Villamosenergetikai ipari felügyeleti rendszerek kiberbiztonsági kézikönyve}, url = {https://m2.mtmt.hu/api/publication/32462794}, isbn = {9786150098265}, author = {Angyal, István and Arató, György and Bakos, Béla and Baranya, Zsolt and Bocsok, Viktor and Bogáncs, Tamás János and Bonnyai, Tünde and Buttyán, Levente and Csatár, János and Danyek, Miklós and Deák, Veronika and Görgey, Péter and Gyebnár, Gergő and Illés, Gábor and Krasznay, Csaba and Molnár, Ferenc and Pongrácz, Péter and Szabó-Nyakas, Zsolt Csaba and Szádeczky, Tamás and Szent-Királyi, Balázs and Winter, Gábor}, publisher = {Special Service for National Security National Cyber-Security Center}, unique-id = {32462794}, year = {2020}, orcid-numbers = {Csatár, János/0000-0003-4430-9280; Krasznay, Csaba/0000-0003-3216-2592; Szádeczky, Tamás/0000-0001-7191-4924} } @article{MTMT:31851959, title = {Egy jövőbe mutató együttműködés - az MVM - BME Smart Power Laboratórium első kutatási eredményei}, url = {https://m2.mtmt.hu/api/publication/31851959}, author = {Raisz, Dávid and Szoboszlai, Beáta and Csatár, János and Divényi, Dániel and Sőrés, Péter Márk and Prikler, László and Bertalan, Zsolt}, journal-iso = {MVM RT KÖZLEMÉNYEI}, journal = {MAGYAR VILLAMOS MŰVEK RT KÖZLEMÉNYEI}, volume = {2020}, unique-id = {31851959}, issn = {1216-4992}, year = {2020}, eissn = {1786-674X}, pages = {62-72}, orcid-numbers = {Csatár, János/0000-0003-4430-9280} } @inproceedings{MTMT:32511212, title = {Simulation of islanding in distribution networks}, url = {https://m2.mtmt.hu/api/publication/32511212}, author = {Csatár, János and Kovács, Attila and Gaál, Róbert}, booktitle = {Proc. of the 25th International Conference on Electricity Distribution (CIRED 2019)}, unique-id = {32511212}, year = {2019}, pages = {1-5}, orcid-numbers = {Csatár, János/0000-0003-4430-9280} } @mastersthesis{MTMT:31348281, title = {A kisfeszültségű hálózatok megújuló termelésre vonatkozó befogadóképességének vizsgálata figyelembe véve a feszültségingadozások csökkentésére szolgáló lehetőségeket}, url = {https://m2.mtmt.hu/api/publication/31348281}, author = {Csatár, János}, publisher = {Budapest University of Technology and Economics}, unique-id = {31348281}, year = {2019}, orcid-numbers = {Csatár, János/0000-0003-4430-9280} }