Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Pavel Vorel"'
Publikováno v:
IEEE Open Journal of Power Electronics, Vol 5, Pp 837-851 (2024)
Converters that produce an isolated dc output from a three-phase mains supply are often required. Moreover, input power factor correction (PFC) functionality is essential. A standard two-stage conception with ac/dc and dc/dc converters may be used. H
Externí odkaz:
https://doaj.org/article/58fb63d81348408386275597c9185c96
Autor:
Pavel Vorel, Jan Martiš
Publikováno v:
ECS Transactions. 105:567-574
An electric lawn mower supplied from batteries was designed and constructed. Li-ion cells are used because of their high volumetric and weight energy density. Falling prices of these batteries allow such a conception to be practical. Two separate mot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8167de4c29468df7871ddd0acbc0ee34
https://doi.org/10.1149/10501.0567ecst
https://doi.org/10.1149/10501.0567ecst
Publikováno v:
ECS Transactions. 99:311-316
A battery DC power source for a small oscilloscope was designed and constructed. Its output voltage is ca. 300 V and its output power is about 60 W. A series-resonant DC/DC converter with a pulse transformer is the core of this device. The source is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::139da151bdd358cd3e8355c65c6622c8
https://doi.org/10.1149/09901.0311ecst
https://doi.org/10.1149/09901.0311ecst
Publikováno v:
ECS Transactions. 99:365-371
The paper deals with a thermal model of a battery pack made of a phase-change material. The model is based on the finite element method and is created in the Ansys software. The performed simulations with different discharge cycles indicate that maxi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff26204019b5b13925f968f4e112b2e2
https://doi.org/10.1149/09901.0365ecst
https://doi.org/10.1149/09901.0365ecst
Publikováno v:
ECS Transactions. 99:373-380
This paper describes the design of a high power wireless power transfer with a coupled series resonant circuit. Coils distance is 600 mm and a nominal power is 20 kW. The transfer is provided by the inductive coupling of the resonant circuit with 800
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2d31e3ddd004b1a2912b7c64606e23a
https://doi.org/10.1149/09901.0373ecst
https://doi.org/10.1149/09901.0373ecst
Publikováno v:
ECS Transactions. 95:371-377
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8aca43a43f211927927fc32dde7a578d
https://doi.org/10.1149/09501.0371ecst
https://doi.org/10.1149/09501.0371ecst
Publikováno v:
ECS Transactions. 95:319-325
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d2eca5d9898b5e9ef754b692e30b66f
https://doi.org/10.1149/09501.0319ecst
https://doi.org/10.1149/09501.0319ecst
Autor:
Pavel Vorel, Dusan Benda
Publikováno v:
ECS Transactions. 95:313-318
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aabd4cbd47ea2ebd38c69b3bf92ed3d2
https://doi.org/10.1149/09501.0313ecst
https://doi.org/10.1149/09501.0313ecst
Autor:
Pavel Vorel, Miroslav Jurik, Daniel Koutny, Petr Prochazka, Josef Nevrly, Zdenek Nemec, Martin Fichta
Publikováno v:
The First World Energies Forum—Current and Future Energy Issues.
The motivation for this article was an effort to create an battery electric drive of a smaller excavator of a well-known manufacturer. This research followed the solution of the kinetic energy recovery of the road roller. The aim of the excavator ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7cdd8c146b171f2c25ab9724b90e3f3
https://doi.org/10.3390/wef-06927
https://doi.org/10.3390/wef-06927
Publikováno v:
2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe).
The paper describes usual solutions of preregulators in laboratory power supplies and a completely new method of voltage pre-regulation in laboratory power supplies. It is a multi-level rectifier in which it is possible to switch output voltage in st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::640560cbbec745d2450ecd1fd2dab439
https://doi.org/10.1109/eeeic/icpseurope49358.2020.9160630
https://doi.org/10.1109/eeeic/icpseurope49358.2020.9160630