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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 27
Kindl, Vladimír , Skala, Bohumil , Frivaldský, Michal
Analytical Method for Compensation Choke Geometry Optimization to Minimize Losses

The article presents an analytical method for optimizing the geometry of the magnetic core of a three-phase compensation choke. The method describes the process of identification the fringing magnetic fields and the corresponding magnetic reluctances of the magnetic core, the flux density&#x...

Ševčík, Jakub , Přikryl, Jan , Peroutka, Zdeněk
In-motion charged vehicle simulation considering traffic and power grid interactions

When designing new electric vehicles for urban transport, both vehicle producers and operators need to establish and verify requirements that the vehicle has to fulfil regarding, e.g., energy storage capacity, driving range, or battery wear. These requirements are typically verified using si...

Abazov, V. M. , Georgiev, Vjačeslav , Hammerbauer, Jiří , Linhart, Richard , Peroutka, Zdeněk , Urban, Ondřej , Vavroch, Ondřej , Zich, Jan , D0, Collaboration , TOTEM, Collaboration
Odderon Exchange from Elastic Scattering Differences between pp and p¯p Data at 1.96 TeV and from pp Forward Scattering Measurements

We describe an analysis comparing the p¯p elastic cross section as measured by the D0 Collaboration at a center-of-mass energy of 1.96 TeV to that in pp collisions as measured by the TOTEM Collaboration at 2.76, 7, 8, and 13 TeV using a model-independent approach. The...

Sirunyan, A. N. , Georgiev, Vjačeslav , Hammerbauer, Jiří , Linhart, Richard , Peroutka, Zdeněk , Urban, Ondřej , Vavroch, Ondřej , Zich, Jan , CMS, Collaboration , TOTEM, Collaboration
Hard color-singlet exchange in dijet events in proton-proton collisions at √s=13 TeV

Events where the two leading jets are separated by a pseudorapidity interval devoid of particle activity, known as jet-gap-jet events, are studied in proton-proton collisions at √s=13 TeV. The signature is expected from hard color-singlet exchange. Each of the highest transverse momentum...

Sirunyan, A. M. , Georgiev, Vjačeslav , Hammerbauer, Jiří , Linhart, Richard , Peroutka, Zdeněk , Urban, Ondřej , Zich, Jan , CMS, Collaboration , TOTEM, Collaboration
Measurement of single-diffractive dijet production in proton–proton collisions at √ s = 8 TeV with the CMS and TOTEM experiments

Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss ξ and the four-momentum transfer squared t. Both processes p p → p X and p p → X p , i.e. with the pro...

Antchev, G. , Aspell, P. , Atanassov, I. , Avati, V. , Baechler, J. , Barrera, C.Baldenegro , Berardi, V. , Berretti, M. , Borchsh, V. , Bossini, E. , Bottigli, U. , Bozzo, M. , Burkhardt, H. , Cafagna, F.S. , Catanesi, M.G. , Csanád, M. , Csörgö, T. , Deile, M. , De Leonardis, F. , Doubek, M. , Druzhkin, D. , Eggert, K. , Eremin, V. , Ferro, F. , Fiergolski, A. , Forthomme, L. , Garcia, F. , Georgiev, Vjačeslav , Giani, S. , Grzanka, L. , Hammerbauer, Jiří , Isidori, T. , Ivanchenko, V. , Janda, Martin , Karev, A. , Kašpar, J. , Kaynak, B. , Kopal, J. , Kundrát, V. , Lami, S. , Latino, G. , Linhart, Richard , Lindsey, C. , Lokajíček, M.V. , Losurdo, L. , Lucas Rodríguez, F. , Macrí, M. , Malawski, M. , Minafra, N. , Minutoli, S. , Naaranoja, T. , Nemes, F. , Niewiadomski, H. , Novák, T. , Oliveri, E. , Oljemark, F. , Oriunno, M. , Österberg, K. , Palazzi, P. , Passaro, V. , Peroutka, Zdeněk , Procházka, J. , Quinto, M. , Radermacher, E. , Radicioni, E. , Ravotti, F. , Robutti, E. , Royon, C. , Ruggiero, G. , Saarikko, H. , Samoylenko, V.D. , Scribano, A. , Široký, Jan , Smajek, J. , Snoeys, W. , Stefanovitch, R. , Sziklai, J. , Taylor, C. , Tcherniaev, E. , Turini, N. , Urban, Ondřej , Vacek, V. , Vavroch, Ondřej , Welti, J. , Williams, J. , Zich, Jan , Zielinski, K.
Characterisation of the dip-bump structure observed in proton–proton elastic scattering at s√ = 8 TeV

The TOTEM collaboration at the CERN LHC has measured the differential cross-section of elastic proton–proton scattering at s√=8TeV in the squared four-momentum transfer range 0.2GeV2<|t|<1.9GeV2. This interval includes the structure with a diffractive minimum (“dip”) and a secondary maximum (“bu...

Skala, Bohumil , Kindl, Vladimír , Frivaldsky, Michal
Design, construction and calibration of the current sensor for medium frequency high-power electronic applications

The paper discusses design methodology, constructional alternatives and calibration procedure of current sensor suited for high-power semiconductor systems operated at medium switching frequencies (industrial contact and contactless power chargers). Even there are several types of the sensor on the ma...

Roshani, Saeed , Koziel, Slawomir , Roshani, Sobhan , Jamshidi, Mohammad , Parandin, Fariborz , Szczepanski, Stanislaw
Design of a patch power divider with simple structure and ultra-broadband harmonics suppression

This paper introduces a simple H-shaped patch Wilkinson power divider (WPD), which provides ultra wide harmonics suppression band. The presented WPD designed at 1.8 GHz, and exhibits good performance at the operating bandwidth. In the proposed divider structure, two simple patch low-pass...

Laksar, Jan , Čermák, Radek , Hruška, Karel
Challenges in the electromagnetic design of multiphase machines: winding and equivalent circuit parameters

The usage of multiphase electrical drives expands the operation possibilities of electrical machines and opens new directions of research on inverter-fed electrical machines. With an increasing number of phases, the standard approach of the electromagnetic design of machines has to be genera...

Kindl, Vladimír , Markovič, Tomáš , Turjanica, Pavel , Ďuran, Ivan , Weinzettl, Vladimír , Balner, Vojtěch
Impact of COMPASS-U vacuum vessel and the first wall structures on signals of in-vessel magnetic diagnostic coils

The paper evaluates the impact of metallic structures of the COMPASS-U tokamak design on signals measured by in-vessel magnetic diagnostic coils. The eddy current shielding caused by the tokamak conductive structures of the vacuum vessel and plasma facing components is evaluated using f...

Ševčík, Jakub , Adam, Lukáš , Přikryl, Jan , Šmídl, Václav
Solvability of the power flow problem in DC overhead wire circuit modeling

Proper traffic simulation of electric vehicles, which draw energy from overhead wires, requires adequate modeling of traction infrastructure. Such vehicles include trains, trams or trolleybuses. Since the requested power demands depend on a traffic situation, the overhead wire DC electrical circu...

Kůs, Václav , Skala, Bohumil , Drábek, Pavel
Complex design method of filtration station considering harmonic components

The paper deals with a new methodology for calculating the filter parameters. The basis is respect for the fact that the real filter current consists of other harmonic components, which filter is tuned. The proposed methodology was used to design filters for traction substation...

Votava, Martin , Šmídl, Václav , Peroutka, Zdeněk , Glasberger, Tomáš
Maximizing power utilization of dual converter using predictive control with steady state cost

Capability to deliver maximum power of a converter is essential for increasing power density that is limiting in many applications. Therefore, control algorithm should guarantee operation within converter thermal limits. This requirement can be formalized by a hard constraint in the cost...

Frank, Zdeněk , Laksar, Jan
Analytical design of coreless axial-flux permanent magnet machine with planar coils

This paper presents the design of an axial-flux permanent magnet (AFPM) generator with two rotors and one coreless stator with planar coils. This geometry has reduced the total mass of the generator and production demands of the machine. The geometry of the coreless AFPM machi...

Vinš, Martin , Dragoun, Jaroslav , Sirový, Martin
Energy storage technology and converter topology for primary frequency control in thermal power plant

Motivation and complex process of energy storage technology and converter topology design suitable for integration in thermal power plant systems to improve flexibility and primary frequency control is presented in the paper. The case study of typical thermal power plant is included and...

Vondráček, Petr , Pánek, Radomír , Hron, Martin , Havlíček, Josef , Weinzettl, Vladimír , Todd, Thomas Noel , Tskhakaya, David D. , Cunningham, Geoffrey , Háček, Pavel , Hromádka, Jakub , Junek, Pavel , Krbec, Jaroslav , Patel, Nisarg , Šesták, David , Varju, Jozef , Adámek, Jiří , Balázsová, Monika , Balner, Vojtěch , Bartoň, Petr , Bielecki, Jakub , Bílková, Petra , BŁocki, Jacek , Bocian, Dariusz , Bogár, Klara , Bogár, Ondřej , Boocz, Pavel , Borodkina, I. E. , Brooks, Arthur B. , Böhm, Petr , Burant, Jiří , Casolari, Andrea , Cavalier, Jordan , Chappuis, Phillippe , Dejarnac, Renaud , Dimitrova, Miglena , Dudák, Miloš , Ďuran, Ivan , Ellis, Robert A. , Entler, Slavomír , Fang, Jiarong , Farnik, Michal , Ficker, Ondřej , Fridrich, David , Fuková, Šárka , Gérardin, Jonathan , Hanák, Ivo , Havránek, Aleš , Herrmann, Albrecht , Horáček, Jan , Hronová, Olena , Imríšek, Martin , Isernia, Nicola , Jaulmes, Fabien , Jeřáb, Martin , Kindl, Vladimír , Komm, Michael , Kovařík, Karel , Kral, M. , Kripner, Lukáš , Macúšová, Eva , Majer, Tomáš , Markovič, Tomáš , Matveeva, Ekaterina , Mikszuta-Michalik, Katarzyna , Mohelnik, Martin , Mysiura, Illia , Naydenkova, D. I. , Němec, Ivan , Ortwein, Rafal , Patočka, Karel , Peterka, M. , Podolnik, A. , Procházka, F. , Převrátil, Jan , Řeboun, Jan , Scalerà, Valentino , Scholz, M. , Svoboda, J. , Świerblewski, Jacek , Šos, Miroslav , Tadros, Michael , Titus, Peter H. , Tomeš, Matěj , Torres, Andre , Tracz, Grzegorz , Turjanica, Pavel , Varavin, Mykyta , Veselovský, Viktor , Villone, Fabio , Wąchal, Przemysław , Yanovskiy, Vadim V. , Zadvitskiy, Georgiy V. , Zajac, Jaromír , Žák, Adam , Zaloga, Dobromil R. , Zelda, Jan , Zhang, Han
Preliminary design of the COMPASS upgrade tokamak

COMPASS Upgrade is a new medium size, high magnetic field tokamak (R = 0.9 m, Bt = 5 T, Ip = 2 MA) currently under design in the Czech Republic. It will provide unique capabilities for addressing some of the key challenges in plasma exhaust physics, advanced con...

Veg, Lukáš , Kaska, Jan , Skalický, Martin , Pechánek, Roman
A complex study of stator tooth-coil winding thermal models for PM synchronous motors used in electric vehicle applications

The operational reliability and high efficiency of modern electrical machines depend on the ability to transfer heat in the construction parts of the machine. Therefore, many authors study various thermal models and work on the development of effective heat dissipation. New insights and...

Jamshidi, Mohammad , Roshani, Saeed , Talla, Jakub , Roshani, Sobhan , Peroutka, Zdeněk
Size reduction and performance improvement of a microstrip Wilkinson power divider using a hybrid design technique

In the design of a microstrip power divider, there are some important factors, including harmonic suppression, insertion loss, and size reduction, which affect the quality of the final product. Thus improving each of these factors contributes to a more efficient design. In this res...

Roshani, Saeed , Jamshidi, Mohammad , Mohebi, Farzad , Roshani, Sobhan
Design and modeling of a compact power divider with squared resonators using artificial intelligence

We present the results of neutron detection in a laser plasma experiment with a CD2 nanowire target. A hybrid semiconductor pixel detector Timepix3 covered with neutron converters was used for the detection of neutrons. D–D fusion neutrons were detected in a polyethylene converter ...

Njawah Achiri, Humphrey Mokom , Šmídl, Václav , Peroutka, Zdeněk , Streit, Luboš
Least squares method for indentification of IGBT thermal impedance networks using direct temperature measurements

State-of-the-art methods for determining thermal impedance networks for IGBT (Insulated Gate Bipolar Transistor) modules usually involves the establishment of the relationship between the measured transistor or diode voltage and temperature under homogenous temperature distribution across the IGBT module. ...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 27