@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: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} } @inproceedings{MTMT:34431561, title = {Inverter alapú mikrogridek hálózati reszinkronizációjának vizsgálata}, url = {https://m2.mtmt.hu/api/publication/34431561}, author = {Tóth, Balázs and Sütő, Bence}, booktitle = {XIII. Mechwart András Ifjúsági Találkozó: Konferenciakiadvány}, doi = {10.54232/MAIT.2023_11}, unique-id = {34431561}, year = {2023}, pages = {128-141} } @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} } @article{MTMT:33826647, title = {Complex energy-reserve orders for generators with income and ramping restrictions on European electricity markets}, url = {https://m2.mtmt.hu/api/publication/33826647}, author = {Divényi, Dániel and Polgári, Beáta and Sleisz, Ádám and Sőrés, Péter Márk and Raisz, Dávid}, doi = {10.1016/j.epsr.2023.109474}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {221}, unique-id = {33826647}, issn = {0378-7796}, year = {2023}, eissn = {1873-2046} } @inproceedings{MTMT:33639525, title = {Virtuális oszcillátor alapú inverter szabályozás}, url = {https://m2.mtmt.hu/api/publication/33639525}, author = {Tóth, Balázs and Raisz, Dávid and Sütő, Bence}, booktitle = {XII. Mechwart András Ifjúsági Találkozó}, doi = {10.54232/MAIT.2022_9}, unique-id = {33639525}, year = {2022}, pages = {90-101} } @inproceedings{MTMT:33639500, title = {Grid-forming inverter modellek összehasonlító vizsgálata}, url = {https://m2.mtmt.hu/api/publication/33639500}, author = {Sütő, Bence and Tóth, Balázs and Divényi, Dániel and Farkas, Csaba and Raisz, Dávid}, booktitle = {XII. Mechwart András Ifjúsági Találkozó}, doi = {10.54232/MAIT.2022_8}, unique-id = {33639500}, year = {2022}, pages = {77-89} } @inproceedings{MTMT:33282187, title = {Extended synchronverter model for PHIL simulation in grid-connected and islanded operation}, url = {https://m2.mtmt.hu/api/publication/33282187}, author = {Farkas, Csaba and Divényi, Dániel and Arnold, A. and Sütő, Bence and Raisz, Dávid}, booktitle = {2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)}, doi = {10.1109/PEDG54999.2022.9923257}, unique-id = {33282187}, abstract = {The need to control the inverters of renewable generating units called various controller concepts into existence. Of particular interest to grid-tied operation are those controllers that can mimic the inertial behavior of the conventional synchronous machines since the decrease of inertia will pose a serious issue in future power grids. These controllers are called VSM - Virtual Synchronous Machines, a family the synchronverter control concept is part of. In this paper we strive for augmenting the foundations of the synchronverter control and parameter tuning method already laid down in [1] by introducing the filter capacitor and the resistances into the small-signal model. Using parameters determined based on small-signal stability calculations we show how the synchronverter is capable of islanded and grid-connected operation, synchronizing to the grid via a synchronizing impedance. The controller is tested on a power hardware-in-the-loop (PHIL) simulator with an emulated external grid capable of giving frequency response. Simulation results indicate that the transfer from islanded to grid-connected operation of the synchronverter is seamless after a fast synchronization, while the controller can help in the frequency containment process (FCP).}, keywords = {island operation; Synchronverter; inverter control; swing equation; Grid-connected operation}, year = {2022} } @inproceedings{MTMT:33282181, title = {Comparison and specification-based tuning of two grid-forming inverter controllers providing inertia}, url = {https://m2.mtmt.hu/api/publication/33282181}, author = {Sütő, Bence and Divényi, Dániel and Raisz, Dávid}, booktitle = {2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)}, doi = {10.1109/PEDG54999.2022.9923191}, unique-id = {33282181}, abstract = {As the proportion of renewable energy generation grows worldwide, there is an increasing demand for electronic solutions that support power system stability. Grid-forming (GFM) inverters that provide virtual inertia will likely be one of the key elements in future power systems. However, no clear guidelines or specifications do yet exist for the selection of the controller structure and its parameter tuning. There are several GFM approaches published in the literature, from which two virtual synchronous machine (VSM) structures are compared in this paper to identify which controller is more convenient from the point of view of specification-based parameter-tuning. First, the dynamics of the active and reactive power loops are expressed via a theoretic, small-signal analysis-based approach. Using the derived models, the converter parameters are tuned to provide identical behavior to power reference changes. The comparison and the evaluation of the theoretic models are carried out using offline simulations and PHIL demonstrations. Results indicate that the VSM cascade model corresponds to its theoretical model, while the synchronverter is more prone to dealing with stability issues in hardware implementation.}, keywords = {converter control; Synchronverter; Grid-forming converter; power hardware-in-the-loopsimulation}, year = {2022} } @article{MTMT:33257997, title = {A Novel Cost Allocation Mechanism for Local Flexibility in the Power System with Partial Disintermediation}, url = {https://m2.mtmt.hu/api/publication/33257997}, author = {Sleisz, Ádám and Divényi, Dániel and Polgári, Beáta and Sőrés, Péter Márk and Raisz, Dávid}, doi = {10.3390/en15228646}, journal-iso = {ENERGIES}, journal = {ENERGIES}, volume = {15}, unique-id = {33257997}, issn = {1996-1073}, abstract = {Electricity markets are going through a comprehensive transformation that includes the large-scale appearance of intermittent renewable generators (RGs). To handle the local effects of new RGs on the distribution grid, the more efficient utilization of distributed local flexibility (LF) resources is necessary. However, the optimal market design is not yet known for LF products. This paper investigates a novel cost allocation mechanism in the context of this market challenge. The mechanism is designed to provide several important advantages of peer-to-peer trading without creating barriers to practical application. It provides partial disintermediation. The acquisition of LF remains the responsibility of the DSO, while the financial costs of the transaction are covered on power exchanges (PXs). To provide this functionality, the clearing algorithm of the PX in question has to incorporate a novel feature we call the Payment Redistribution Technique. This technique allows the buyers’ expenses to be larger than the sellers’ income, and the difference is used to finance flexibility costs. Its mathematical formulation is presented and analyzed in detail, considering computational efficiency and accuracy. Afterward, a realistic case study is constructed to demonstrate the operation of the algorithm and its energy market effects.}, year = {2022}, eissn = {1996-1073} }