Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Tomas Komrska"'
Multiphase converters are systems with multiple degrees of freedom (DOF) and provide space for control optimization. Widely-spread space vector PWM methods offer competitive results. However, they are rather complicated due to high number of switchin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ee853d116d60550807e46de4cfe42c0
http://hdl.handle.net/11025/51839
http://hdl.handle.net/11025/51839
Autor:
Tomas Komrska, Tomas Glasberger
Publikováno v:
TRANSACTIONS ON ELECTRICAL ENGINEERING. 8:44-48
Traditional three-phase voltage-source inverters supplied by constant dc-link voltage usually utilize the space vector PWM to achieve maximum output voltage. This paper deals with optimization of inverter leg voltages using linear programming method.
Publikováno v:
TRANSACTIONS ON ELECTRICAL ENGINEERING. 7:10-13
The paper deals with the comparison of power semiconductors based on Si and SiC in application of power converters for power systems. These are single-phase voltage-source bridge inverters with nominal power of 150 kVA. Power converters are designed
SGS-2021-021 Power installations based on power converters in power transmission and power distribution require real-time control which is usually implementing using multiple control units. Therefore, very fast data exchange within constant sampling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ead8ca0ef067c2d534b524c72e289eb
http://hdl.handle.net/11025/49873
http://hdl.handle.net/11025/49873
Autor:
Patrik Kalaj, Tomas Komrska, Vladimir Kindl, Radek Cermak, Zdenek Frank, Jan Laksar, Zdenek Peroutka
Multiphase machines can be operated in interesting operation modes which are not possible when using their three-phase counterparts. Besides fault-tolerant and multimotor operation, torque enhancement by injecting harmonic currents is another of thei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d88cb38c763ae8b71562a2917b83489
http://hdl.handle.net/11025/51014
http://hdl.handle.net/11025/51014
Publikováno v:
2021 International Conference on Applied Electronics (AE).
Single-phase ground faults are the most common faults in medium-voltage distribution grids. High-impedance grid grounding using a special four-leg transformer is discussed in the paper. The transformer’s zero-sequence impedance differs from positiv
Autor:
Pavel Turjanica, Libor Polacek, Zdenek Peroutka, Josef Stengl, Jakub Talla, Tomas Komrska, Petr Burian, Tomas Kosan
Publikováno v:
2021 IEEE 19th International Power Electronics and Motion Control Conference (PEMC).
Power semiconductor installations in medium-voltage power grids are usually built by numerous particular power converter units containing large number of power modules. Such large installations place high demands on control systems including precise
Publikováno v:
2020 19th International Conference on Mechatronics - Mechatronika (ME).
The paper deals with magnetic forces and vibration analysis of a nine-phase induction motor. It is described a method of voltage harmonics injection for reaching either the same amplitude or RMS value of supplying voltage as for the case of supplying
Autor:
Antonin Glac, Tomas Komrska, Bohumil Skala, Jakub Talla, Lubes Streit, Zdenek Peroutka, Jan Stepanek
MV distribution grids are often operated with arc suppression coils compensating dominating reactive fault current component when single-phase ground fault occurs. The paper deals with an active compensation in emulated distribution grid of 10 kV per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f8d7a273ecd45bf571b24e0eb56a7c5
http://hdl.handle.net/11025/42835
http://hdl.handle.net/11025/42835
Autor:
Radek Cermak, Zdenek Frank, Tomas Komrska, Zdenek Peroutka, Jan Laksar, Vladimir Kindl, Patrik Kalaj
Publikováno v:
IECON
This paper deals with an experimental injection of harmonics to a stator winding of a nine-phase machine. Different combinations of the harmonic components are applied with the optimal magnitudes calculated by a linear programming to maximize exploit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfaaf464b460f54fd930819e904b5b29
http://hdl.handle.net/11025/42476
http://hdl.handle.net/11025/42476