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Search results for: EMU
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EMU
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Anatomical and morphological study of the kidneys of the breeding emu(Dromaius novaehollandiae)
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Post mortem changes in M. iliotibialis lateralis muscle protein profile of emu (Dromaius novaehollandiae)
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EMS world
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Dual Active Bridge (DAB) DC-DC converter for multilevel propulsion converters for electrical multiple units (EMU)
PublicationSemiconductor power devices made from silicon carbide (SiC) reached a level of technology enabling their widespread use in power converters. Two different approaches to implementation of modern traction converters in electric multiple units (EMU) have been presented in recent years: (i) 3.3-kV SiC MOSFET-based three-level PWM inverter with regenerative braking and (ii) 6.5-kV IGBT-based four-quadrant power electronic traction transformer...
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The Wiener filter applied to EMI decomposition
PublicationArtykuł przestawia zastosowanie metody filtracji Wienera do dekompozycji zaburzeń elektromagnetycznych z różnych źródeł. Zaburzenia generowane w trójfazowym rezonansowym falowniku napięcia typy PQRDCLI oraz w przekształtniku napięcia stałego zasilającego obwód sterowania falownika zostały zmierzone z zastosowaniem sieci sztucznej (LISN). W oparciu o transmitancje częstotliwościowe pomiędzy źródłami zaburzeń i zaburzeniami zmierzonymi...
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EMC disturbances in connection of driving system
PublicationIt is known the steep voltage changes caused by IGBT frequency inverters may cause some electromagnetic problems in driving system. Special dU/dt type as well as sinusoidal filters are used in order to limit the level of the disturbances. The paper presents investigation results of EMC disturbances in inverter supplied induction motor. Experiments have proved that disturbances in current connection differ essentially. Important...
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The laboratory kit of EMC disturbances sources
PublicationPrzedstawiono podstawowe przyczyny powstawania zakłóceń w urządzeniach elektrycznych i elektronicznych oraz metody i sposoby ich analizy. Przedstawiono również koncepcje układów elektronicznych mających być wzorcowymi źródłami zaburzeń stosowanymi podczas ćwiczeń laboratoryjnych. Jako źródła zaburzeń małych i wysokich częstotliwości wybrano układy mogące być łatwo sterowane i zmieniane w celu wskazania konieczności stosowania rozwiązań...
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The conducted EMI in DC-DC converters
PublicationThis book presents the phenomena of conducted electromagnetic interference (EMI) generation in DC-DC converters. The measurement and simulation are used to analyze the impact of the most important parameters on the character, level and propagation path of interference. In this book, the analysis of the interference generation and propagation is presented on the example of three basic converters. The wide banded behavior of all...
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Reverberation chamber in emc tests of naval systems
PublicationPaper covers the techniques of emission and immunity testing to the electromagnetic field in reverberation chamber. The procedure of he chamber calibration and field homogeneity assessment were covered. The naval forces' product as selected as an example for discussing the testing procedure in the chamber. The paper's summary gives the assortment of methodology in radiation emission testing and immunity to the electromagnetic field...