TY - CHAP AU - Vokony, István AU - Táczi, István AU - Csatár, János AU - Dán, András AU - Hartmann, Bálint AU - Sőrés, Péter Márk ED - Bertrand, Raison TI - Application Experiences of Low Voltage Inline Voltage Regulator with Significant Photovoltaic Generation T2 - 2023 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE) PB - IEEE CY - Piscataway (NJ) SN - 9798350396782 PY - 2023 PG - 6 DO - 10.1109/ISGTEUROPE56780.2023.10408377 UR - https://m2.mtmt.hu/api/publication/34562513 ID - 34562513 N1 - ENEDIS; et al.; GreenAlp; Le Reseau de Transport d'electricite (RTE); Schneider Electric; Think Smartgrids Conference code: 196974 Export Date: 22 March 2024 Funding text 1: ACKNOWLEDGMENT The research reported in this paper has been supported by E.ON Hungary. AB - 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. LA - English DB - MTMT ER - TY - CHAP AU - Juhász, Kristóf Péter AU - Táczi, István TI - Exploitation of electric vehicle energy storage capabilities considering the smart distribution system concept T2 - 2023 IEEE 2nd International Conference on Cognitive Mobility (CogMob) PB - IEEE CY - Piscataway (NJ) PY - 2023 SP - 155 EP - 158 PG - 4 UR - https://m2.mtmt.hu/api/publication/34477291 ID - 34477291 LA - English DB - MTMT ER - TY - JOUR AU - Juhász, Kristóf Péter AU - Táczi, István AU - Sztráda, Gyula TI - Rendszer inercia várható változásai és hatása a VER működésére JF - ENERGIAGAZDÁLKODÁS J2 - ENERGIAGAZDÁLKODÁS VL - 64 PY - 2023 IS - 3-4 SP - 87 EP - 91 PG - 5 SN - 0021-0757 UR - https://m2.mtmt.hu/api/publication/34476393 ID - 34476393 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Tőzsér, Balázs AU - Táczi, István ED - Mohos, András ED - Táczi, István ED - Tóth, Zoltán TI - Elosztóhálózati megújuló kapacitás vizsgálata T2 - XIII. Mechwart András Ifjúsági Találkozó: Konferenciakiadvány PB - Magyar Elektrotechnikai Egyesület, Mechwart András Ifjúsági Társaság CY - Siófok SN - 9789639299511 PY - 2023 SP - 142 EP - 154 PG - 13 DO - 10.54232/MAIT.2023_12 UR - https://m2.mtmt.hu/api/publication/34431556 ID - 34431556 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Juhász, Kristóf Péter AU - Táczi, István AU - Sztráda, Gyula ED - Mohos, András ED - Táczi, István ED - Tóth, Zoltán TI - Inerciacsökkenés vizsgálata: A fogyasztói oldal hatáselemzése T2 - XIII. Mechwart András Ifjúsági Találkozó: Konferenciakiadvány PB - Magyar Elektrotechnikai Egyesület, Mechwart András Ifjúsági Társaság CY - Siófok SN - 9789639299511 PY - 2023 SP - 67 EP - 80 PG - 14 DO - 10.54232/MAIT.2023_5 UR - https://m2.mtmt.hu/api/publication/34431553 ID - 34431553 LA - Hungarian DB - MTMT ER - TY - BOOK ED - Mohos, András ED - Táczi, István ED - Tóth, Zoltán TI - XIII. Mechwart András Ifjúsági Találkozó: Konferenciakiadvány PB - Magyar Elektrotechnikai Egyesület, Mechwart András Ifjúsági Társaság CY - Siófok PY - 2023 SP - 181 SN - 9789639299511 DO - 10.54232/MAIT.2023 UR - https://m2.mtmt.hu/api/publication/34431508 ID - 34431508 LA - Hungarian DB - MTMT ER - TY - BOOK ED - Mohos, András ED - Táczi, István ED - Tóth, Zoltán TI - XIII. Mechwart András Ifjúsági Találkozó (MAIT): absztraktkötet PB - Magyar Elektrotechnikai Egyesület, Mechwart András Ifjúsági Társaság CY - Budapest PY - 2023 SN - 9789639299504 DO - 10.54232/MAIT.2023_abs UR - https://m2.mtmt.hu/api/publication/34406063 ID - 34406063 LA - Hungarian DB - MTMT ER - TY - CHAP AU - Péter, Gábor Mihály AU - Táczi, István AU - Vokony, István AU - Hartmann, Bálint AU - Sőrés, Péter Márk AU - Erdei, M. ED - IET, , TI - Local flexibility market development at E.ON Hungary T2 - 27th International Conference on Electricity Distribution (CIRED 2023) PB - Institution of Engineering and Technology (IET) CY - Stevenage SN - 9781839538551 T3 - IET conference proceedings, ISSN 2732-4494 PY - 2023 SP - 2652 EP - 2656 PG - 5 DO - 10.1049/icp.2023.1099 UR - https://m2.mtmt.hu/api/publication/34209157 ID - 34209157 N1 - E.ON, Hungary BME, Hungary iContest, Hungary Conference code: 195672 Export Date: 19 January 2024 Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFI, 2020-3.1.1-ZFR-VHF-2020-00005 Funding text 1: This project was supported by the Hungarian National Research, Development and Innovation Office through the proposal 2020-3.1.1-ZFR-VHF-2020-00005 AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Táczi, István AU - Vokony, István AU - Barancsuk, Lilla AU - Péter, Gábor Mihály AU - Tőzsér, Balázs AU - Hartmann, Bálint TI - Role of Voltage Control Devices in Low Voltage State Estimation Process JF - INTERNATIONAL TRANSACTIONS ON ELECTRICAL ENERGY SYSTEMS J2 - INT T ELECTR ENERGY VL - 2023 PY - 2023 PG - 22 SN - 2050-7038 DO - 10.1155/2023/6614905 UR - https://m2.mtmt.hu/api/publication/34162531 ID - 34162531 N1 - Department of Electric Power Engineering, Budapest University of Technology and Economics, Budapest, H-1111, Hungary Department of Coordination and Innovation, E.ON DSO Hungary, Győr, H-9027, Hungary Export Date: 6 October 2023 Correspondence Address: Táczi, I.; Department of Electric Power Engineering, Hungary; email: taczi.istvan@edu.bme.hu AB - Megatrends, such as the proliferation of distributed generation, electrification, and the appearance of aggregator companies, put the low voltage power grids under intense pressure. Since the network infrastructure developments cannot keep up with the trends, distribution system operators turned to alternative solutions. Smart grid assets, such as on-load tap-changing distribution transformers or serial low voltage regulators, are promising solutions. However, the energy transition cannot be handled with the network expansive on the distribution level. Control centers are predicted to expand to this voltage level in the near future, and distribution system state estimation could be an enabler of all functionalities. On the low voltage level, data scarcity is a great challenge in observability; therefore, research must focus on the creation of pseudomeasurements and integration of available data sources. This paper examines the inclusion of smart assets from the conceptual point to the application on two sites, based on data from operational environments, both with a pseudomeasurement and an integrated metering point approach. The results showed that integrating smart assets could considerably mitigate voltage fluctuations, and reduce estimation errors by two magnitudes on the low voltage network. LA - English DB - MTMT ER - TY - JOUR AU - Tőzsér, Balázs AU - Táczi, István AU - Török, Ákos TI - The use of innovative tools in the medium voltage grid development, a case study of series voltage regulator JF - RENEWABLE ENERGY & POWER QUALITY JOURNAL J2 - RENEWABLE ENERGY & POWER QUALITY J VL - 21 PY - 2023 SP - 594 EP - 599 PG - 6 SN - 2172-038X DO - 10.24084/repqj21.409 UR - https://m2.mtmt.hu/api/publication/34069712 ID - 34069712 N1 - Department of Electrical Engineering, Budapest University of Technology and Economics, Egry Jozsef str. 18., Budapest, 1111, Hungary Vaci str. 17., Budapest, 1134, Hungary Export Date: 20 July 2023 LA - English DB - MTMT ER -