@inproceedings{MTMT:3423584, title = {Cooling jacket development for electric motors used in e-aircrafts}, url = {https://m2.mtmt.hu/api/publication/3423584}, author = {Sánta, Szabolcs and Petró, Zoltán and Szente, Viktor and Dorogi, János and Balázs, Gergely György}, booktitle = {Proceedings of Conference on Modelling Fluid Flow (CMFF'18)}, unique-id = {3423584}, abstract = {Most modern airplanes are powered with IC engines because electrical propulsion was not feasible at the dawn of powered flight. It became viable only recently due to advancements made on electric propulsion systems. Weight and space are key factors for airplanes. Increasing the power density of the engine can enable the design of more efficient and more powerful planes. One way to achieve this is to increase the power level of the electric motor which also increases the power loss. In this case more efficient cooling is needed to remove the excess heat. The aim of this paper is to determine the optimal cooling solution for the stator of a radial flux permanent magnet (PM) electric motor which is installed in an electric airplane. Computational fluid dynamics (CFD) is used for the comparison of the developed concepts and their sub-concepts. The results are detailed for every initial concept and then the three best designs are chosen for further optimisation. Most modern airplanes are powered with IC engines because electrical propulsion was not feasible at the dawn of powered flight. It became viable only recently due to advancements made on electric propulsion systems. Weight and space are key factors for airplanes. Increasing the power density of the engine can enable the design of more efficient and more powerful planes. One way to achieve this is to increase the power level of the electric motor which also increases the power loss. In this case more efficient cooling is needed to remove the excess heat. The aim of this paper is to determine the optimal cooling solution for the stator of a radial flux permanent magnet (PM) electric motor which is installed in an electric airplane. Computational fluid dynamics (CFD) is used for the comparison of the developed concepts and their sub-concepts. The results are detailed for every initial concept and then the three best designs are chosen for further optimisation.}, year = {2018}, orcid-numbers = {Szente, Viktor/0000-0002-0588-7726} } @{MTMT:3176937, title = {Method and System for Simulating Inverter Phase Legs During Discontinuous Conduction Mode}, url = {https://m2.mtmt.hu/api/publication/3176937}, author = {Kökényesi, Tamás and Varjasi, István and Debreceni, Tibor and Balázs, Gergely György and Futó, András}, unique-id = {3176937}, year = {2016} } @{MTMT:3160313, title = {METHOD AND SYSTEM FOR DEAD TIME COMPENSATION IN A PWM CONTROLLED INVERTER}, url = {https://m2.mtmt.hu/api/publication/3160313}, author = {Futó, András and Varjasi, István and Debreceni, Tibor and Balázs, Gergely György}, unique-id = {3160313}, year = {2016} } @article{MTMT:3129840, title = {FPGA-synthesizable electrical battery cell model for high performance real-time algorithms}, url = {https://m2.mtmt.hu/api/publication/3129840}, author = {Debreceni, Tibor and Szabó, P and Balázs, Gergely György and Varjasi, István}, doi = {10.3311/PPee.9398}, journal-iso = {PERIOD POLYTECH ELECTR ENG COMP SCI}, journal = {PERIODICA POLYTECHNICA-ELECTRICAL ENGINEERING AND COMPUTER SCIENCE}, volume = {60}, unique-id = {3129840}, issn = {2064-5260}, year = {2016}, eissn = {2064-5279}, pages = {163-170} } @inproceedings{MTMT:2763494, title = {Double Domain Simulation – Modelling the Harmonic Effect of Different Nonlinear Loads}, url = {https://m2.mtmt.hu/api/publication/2763494}, author = {Kiss, Péter and Balázs, Gergely György}, booktitle = {2014 16th International Conference on Harmonics and Quality of Power}, doi = {10.1109/ICHQP.2014.6842873}, unique-id = {2763494}, keywords = {computer simulation; Power quality; harmonic effect}, year = {2014}, pages = {395-399} } @article{MTMT:31801047, title = {Harmonic Penetration Analyses for DC-Link Frequency Converter Drive Systems by Considering the Motor-Side Converter as an Ideal Current Generator}, url = {https://m2.mtmt.hu/api/publication/31801047}, author = {Balázs, Gergely György and Schmidt, István and Kiss, Péter}, doi = {10.24084/repqj11.573}, journal-iso = {RENEWABLE ENERGY & POWER QUALITY J}, journal = {RENEWABLE ENERGY & POWER QUALITY JOURNAL}, volume = {1}, unique-id = {31801047}, year = {2013}, eissn = {2172-038X}, pages = {1190-1194} } @article{MTMT:31801036, title = {Effect of Numerous PV Inverters on Power Quality Connected to the Same LV Network in a Suburban Area}, url = {https://m2.mtmt.hu/api/publication/31801036}, author = {Balázs, Gergely György and Kiss, Péter}, doi = {10.24084/repqj11.477}, journal-iso = {RENEWABLE ENERGY & POWER QUALITY J}, journal = {RENEWABLE ENERGY & POWER QUALITY JOURNAL}, volume = {1}, unique-id = {31801036}, year = {2013}, eissn = {2172-038X}, pages = {873-878} } @mastersthesis{MTMT:2944090, title = {Négynegyedes hálózatbarát áramirányítók szabályozása, különös tekintettel járműves alkalmazásokra}, url = {https://m2.mtmt.hu/api/publication/2944090}, author = {Balázs, Gergely György}, publisher = {Budapest University of Technology and Economics}, unique-id = {2944090}, year = {2013} } @inproceedings{MTMT:2689780, title = {Harmonic Penetration Analyses for DC-Link Frequency Converter Drive Systems by Considering the Motor-Side Converter as an Ideal Current Generator}, url = {https://m2.mtmt.hu/api/publication/2689780}, author = {Balázs, Gergely György and Schmidt, István and Kiss, Péter}, booktitle = {International Conference on Renewable Energies and Power Quality (ICREPQ’13)}, unique-id = {2689780}, year = {2013} } @inproceedings{MTMT:2689778, title = {Effect on Power Quality of Numerous PV Inverters Connected to the Same LV Network in a Suburban Area}, url = {https://m2.mtmt.hu/api/publication/2689778}, author = {Balázs, Gergely György and Kiss, Péter}, booktitle = {International Conference on Renewable Energies and Power Quality (ICREPQ’13)}, unique-id = {2689778}, year = {2013} }