@article{MTMT:34069715, title = {Development and testing midpoint voltage balance algorithms of three-level inverters}, url = {https://m2.mtmt.hu/api/publication/34069715}, author = {Stranyóczky, László and Sütő, Zoltán and Balogh, Attila and Varjasi, István}, doi = {10.24084/repqj21.382}, journal-iso = {RENEWABLE ENERGY & POWER QUALITY J}, journal = {RENEWABLE ENERGY & POWER QUALITY JOURNAL}, volume = {21}, unique-id = {34069715}, year = {2023}, eissn = {2172-038X}, pages = {521-526} } @{MTMT:33078101, title = {Adaptive Dead Time Compensation for Continuous Cross-Period Single Phase Shift Control of Dual Active Bridge Converters}, url = {https://m2.mtmt.hu/api/publication/33078101}, author = {Veréb, Szabolcs and Futó, András and Sütő, Zoltán and Balogh, Attila and Varjasi, István}, booktitle = {20th International Conference on Renewable Energies and Power Quality (ICREPQ'22)}, unique-id = {33078101}, year = {2022} } @article{MTMT:33078098, title = {Adaptive Dead Time Compensation for Continuous Cross-Period Single Phase Shift Control of Dual Active Bridge Converters}, url = {https://m2.mtmt.hu/api/publication/33078098}, author = {Veréb, Szabolcs and Futó, András and Sütő, Zoltán and Balogh, Attila and Varjasi, István}, doi = {10.24084/repqj20.278}, journal-iso = {RENEWABLE ENERGY & POWER QUALITY J}, journal = {RENEWABLE ENERGY & POWER QUALITY JOURNAL}, volume = {20}, unique-id = {33078098}, abstract = {The load transient response of a power converter is an important property, especially in a test equipment application. The dynamic behavior of a dual active bridge converter mainly depends on the switching frequency, the transformer leakage inductance, and the capacitor bank size. Using the Continuous Cross-Period Single Phase-Shift control, an excellent load transient response can be achieved without the need for expensive hardware components. However, in practical applications, the switch delay and the required inserted dead time distort the current waveform, increasing the electromagnetic noise. i}, year = {2022}, eissn = {2172-038X}, pages = {256-262} } @article{MTMT:32922165, title = {Power-HIL application analysis of a 3-level inverter for PMSM machine}, url = {https://m2.mtmt.hu/api/publication/32922165}, author = {Kiss, Dávid and Varjasi, István}, doi = {10.3311/PPEE.16645}, journal-iso = {PERIOD POLYTECH ELECTR ENG COMP SCI}, journal = {PERIODICA POLYTECHNICA-ELECTRICAL ENGINEERING AND COMPUTER SCIENCE}, volume = {65}, unique-id = {32922165}, issn = {2064-5260}, abstract = {Power-HIL simulation is one of the emerging areas in power electronics development nowadays. It offers a convenient test environment for the whole power electronics hardware but eliminates the necessity of motor test benches and rotating machines. Selecting a suitable power amplifier for the simulator is however a challenging task. Switching power supplies can be an interesting option as Power Amplifier, but they have to offer superior power capability and dynamic performance over the DUT (Device Under Test), while maintaining high enough switching frequency to meet the dynamic requirements as well. Using commercially available inverters as Power Amplifiers would be an attractive option, if they can achieve the desired emulation accuracy. This paper investigates the possibility of using a common 3-level inverter with an L-C-L coupling network as a Power Amplifier for a P-HIL simulator, to emulate a PMSM (Permanent Magnet Synchronous Machine) machine. © 2021 Budapest University of Technology and Economics. All rights reserved.}, keywords = {simulation; REAL-TIME; Electric power supplies to apparatus; Permanent magnets; Power electronics; Power electronics; Electric inverters; Hardware-in-the-loop simulation; Power amplifiers; Switching frequency; Synchronous motors; Design for testability; Dynamic performance; High frequency amplifiers; Rotating Machine; Device under test; Application analysis; Power Hardware-in-the-Loop; 3-level inverters; Permanent magnet synchronous machines; Power capability; Switching power supplies}, year = {2021}, eissn = {2064-5279}, pages = {62-68} } @inproceedings{MTMT:32556122, title = {DAB teljesítmény átalakító alkalmazása a BME Moduláris Hibrid Hajtáslánc laboratóriumában}, url = {https://m2.mtmt.hu/api/publication/32556122}, author = {Veréb, Szabolcs and Stranyóczky, László and Varjasi, István}, booktitle = {XI. Mechwart András Ifjúsági Találkozó (MAIT)}, unique-id = {32556122}, abstract = {Napjainkban az e-mobilitás témaköre töretlen népszerűségnek örvend, csaknem minden gépjármű gyártó vállalat kínál részben vagy teljesen villamos hajtású járműveket. A fejlesztés során elengedhetetlen a hajtáslánc tesztelése, különös tekintettel a szigorú autóipari szabványoknak való megfelelőség ellenőrzésére. Ezen igények kielégítésére épült a BME és a Siemens együttműködésében, a Rolls-Royce Hungary-vel közös tulajdonú Moduláris Hibrid Hajtáslánc laboratórium. Különlegessége, hogy a beépített teljesítmény átalakítók hardvere és szoftvere is az egyetemen került fejlesztésre a PROCON Kft közreműködésével, így könnyen a megrendelő igényire szabhatóak. Ebben a cikkben ismertetésre kerül a laboratóriumba beépített 360kW névleges teljesítményű DAB DC/DC konverter különleges felépítése, paraméterei, valamint kiemelkedő dinamikával rendelkező szabályozási struktúrája, amely mérések és HIL szimuláció segítségével összehasonlításra kerül a konvencionális fáziseltolásos vezérlési móddal.}, year = {2021}, pages = {118-127} } @article{MTMT:32175508, title = {Continuous cross-period single phase shift control for dual active bridge converters}, url = {https://m2.mtmt.hu/api/publication/32175508}, author = {Veréb, Szabolcs and Futó, András and Sütő, Zoltán and Balogh, Attila and Varjasi, István}, doi = {10.24084/repqj19.262}, journal-iso = {RENEWABLE ENERGY & POWER QUALITY J}, journal = {RENEWABLE ENERGY & POWER QUALITY JOURNAL}, volume = {19}, unique-id = {32175508}, year = {2021}, eissn = {2172-038X}, pages = {222-228} } @{MTMT:32158962, title = {Continuous Cross-Period Single Phase Shift Control for Dual Active Bridge Converters}, url = {https://m2.mtmt.hu/api/publication/32158962}, author = {Veréb, Szabolcs and Futó, András and Sütő, Zoltán and Balogh, Attila and Varjasi, István}, booktitle = {19th International Conference on Renewable Energies and Power Quality (ICREPQ'21)}, unique-id = {32158962}, year = {2021} } @{MTMT:31971038, title = {Adaptive dead time compensation for cross-period single phase shift control of dual active bridge converters}, url = {https://m2.mtmt.hu/api/publication/31971038}, author = {Veréb, Szabolcs and Futó, András and Sütő, Zoltán and Balogh, Attila and Varjasi, István}, booktitle = {International Conference on Renewable Energy and Power Quality Journal (ICREPQ'20)}, unique-id = {31971038}, year = {2020} } @article{MTMT:31607703, title = {Adaptive Dead Time Compensation for Cross-Period Single Phase Shift Control of Dual Active Bridge Converters}, url = {https://m2.mtmt.hu/api/publication/31607703}, author = {Veréb, Szabolcs and Futó, András and Sütő, Zoltán and Balogh, Attila and Varjasi, István}, doi = {10.24084/repqj18.318}, journal-iso = {RENEWABLE ENERGY & POWER QUALITY J}, journal = {RENEWABLE ENERGY & POWER QUALITY JOURNAL}, volume = {18}, unique-id = {31607703}, abstract = {Nowadays, the need for isolated bidirectional DC-to-DC converters is increasing, as electric energy storage is gaining more popularity. For high power applications, the dual active bridge (DAB) DC-to-DC converters are widely used. Various control methods were proposed throughout the years, but the conventional ones are not practical to use with low frequency and low leakage transformers. In this paper an adaptive dead time compensation method is presented for cross-period single phase shift control, which is specically designed for these applications and has outstanding transient response characteristics. The behaviour is analysed and compared to uncompensated control thorough hardware-in-the-loop simulation. © European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ).}, year = {2020}, eissn = {2172-038X}, pages = {327-332} } @inproceedings{MTMT:30867874, title = {Cross-Period Single Phase Shift Control Technique for High Power and Low Frequency Dual Active Bridge Converters}, url = {https://m2.mtmt.hu/api/publication/30867874}, author = {Veréb, Szabolcs and Futó, András and Sütő, Zoltán and Balogh, Attila and Varjasi, István}, booktitle = {2019 International Conference on Electrical Drives & Power Electronics (EDPE)}, doi = {10.1109/EDPE.2019.8883906}, unique-id = {30867874}, year = {2019}, pages = {385-390} }