@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:34425829, title = {Mesterséges neurális hálózatok alapú kooperatív napenergia termelés-előrejelzés}, url = {https://m2.mtmt.hu/api/publication/34425829}, author = {Vokony, István and Pašić, Lejla and Pašić, Azra and Pašić, Alija and Bíró, József}, journal-iso = {ELEKTROTECHNIKA}, journal = {ELEKTROTECHNIKA}, volume = {116}, unique-id = {34425829}, issn = {0367-0708}, year = {2023}, pages = {23} } @CONFERENCE{MTMT:34425713, title = {Sustainability Assessment Framework for Hungarian Energy Companies in the Context of European Taxonomy Regulation}, url = {https://m2.mtmt.hu/api/publication/34425713}, author = {Vokony, István and Szalmáné Csete, Mária and Juhász, Kristóf Péter}, booktitle = {45th EBES Conference Proceedings - Volume I}, unique-id = {34425713}, year = {2023}, pages = {2-2}, orcid-numbers = {Szalmáné Csete, Mária/0000-0001-7170-9402} } @CONFERENCE{MTMT:34425653, title = {Analysis of market entry, restructuring and economic risks at energy companies – literature review}, url = {https://m2.mtmt.hu/api/publication/34425653}, author = {Szalmáné Csete, Mária and Vokony, István}, booktitle = {International Conference on Renewable Energy and Power Quality Journal (ICREPQ'23)}, unique-id = {34425653}, year = {2023}, pages = {24-24}, orcid-numbers = {Szalmáné Csete, Mária/0000-0001-7170-9402} } @CONFERENCE{MTMT:34425640, title = {One Network for Europe- Scalabilit and Replicabilit in View of Harmonised Electricity Markets}, url = {https://m2.mtmt.hu/api/publication/34425640}, author = {Vokony, István and Péter, Gábor Mihály and Hartmann, Bálint and Sőrés, Péter}, booktitle = {International Conference on Renewable Energy and Power Quality Journal (ICREPQ'23)}, unique-id = {34425640}, year = {2023}, pages = {24-24} } @CONFERENCE{MTMT:34425571, title = {Market Design for Cross-Border Co-Optimised Energy-Reserve Allocation}, url = {https://m2.mtmt.hu/api/publication/34425571}, author = {Vokony, István and Péter, Sőrés and Németh, Bálint and Bálint, Hartmann}, booktitle = {International Conference on Renewable Energy and Power Quality Journal (ICREPQ'23)}, unique-id = {34425571}, year = {2023}, pages = {24-24} } @CONFERENCE{MTMT:34425554, title = {A Benchmark and Validation Guide for the Hungarian Implementation of the Common European Requirements for Electricity Generators}, url = {https://m2.mtmt.hu/api/publication/34425554}, author = {Vokony, István and Márk, Somogyi and Juhász, Kristóf Péter}, booktitle = {International Conference on Renewable Energy and Power Quality Journal (ICREPQ'23)}, unique-id = {34425554}, year = {2023}, pages = {23-23} } @misc{MTMT:34425501, title = {Sustainable corporate management models using disruptive technologies in the energy sector}, url = {https://m2.mtmt.hu/api/publication/34425501}, author = {Szalmáné Csete, Mária and Vokony, István}, unique-id = {34425501}, year = {2023}, orcid-numbers = {Szalmáné Csete, Mária/0000-0001-7170-9402} } @inproceedings{MTMT:34209157, title = {Local flexibility market development at E.ON Hungary}, url = {https://m2.mtmt.hu/api/publication/34209157}, author = {Péter, Gábor Mihály and Táczi, István and Vokony, István and Hartmann, Bálint and Sőrés, Péter Márk and Erdei, M.}, booktitle = {27th International Conference on Electricity Distribution (CIRED 2023)}, doi = {10.1049/icp.2023.1099}, unique-id = {34209157}, abstract = {Renewable energy production is considered by many as one of the key factors in mitigating the effects of climate change. Although there may be many challenges to the spread of renewables, such as their impact on the balance of the electricity system and on distribution networks. There are many pilot projects around Europe with the scope of flexibility. E.ON Hungary with their DSOs already participated in some H2020 projects which helped to conceive a comprehensive project approach in terms network hosting capacity. Flex.on is a Hungarian program led by E.ON distribution system operator subsidized by Hungarian government which conceptualized a comprehensive flexibility platform and eventually developed an IT system. The platform covers all DSO voltage levels with particular challenges. Several local flexibility platforms are under development in Europe, but there is no seen such wide scope in terms of voltage levels what Flex.on flexibility platform brought into focus. This ambitious goal meant that significant challenges had to be faced both in terms of research questions and IT development. This article outlines the scope of the programme, the system being developed and the challenges it poses. © The Institution of Engineering and Technology 2023.}, keywords = {climate change; Renewable energies; Hungarians; Energy productions; Renewables; market development; Electric power distribution; Voltage levels; Key factors; Local flexibility; Pilot programs; Electricity system}, year = {2023}, pages = {2652-2656}, orcid-numbers = {Táczi, István/0000-0002-0835-0481} } @article{MTMT:34192929, title = {Deep Learning-Based Dynamic State Estimation for Frequency Stability Monitoring in Power Systems with High Penetration of Renewable Generation}, url = {https://m2.mtmt.hu/api/publication/34192929}, author = {Cosic, Said and Vokony, István}, doi = {10.3390/engproc2023041016}, journal-iso = {ENGENG PROC}, journal = {ENGINEERING PROCEEDINGS}, volume = {41}, unique-id = {34192929}, year = {2023}, eissn = {2673-4591} }