A novel soft switching system for three-phase voltage source inverter

• Autorzy: Mazgaj W. , Rozegnał B. , Szular Z.

Identyfikatory

DOI

10.4467/2353737XCT.16.243.6042

Warianty tytułu

PL

Trójfazowy falownik napięcia z nowym układem łagodnego przełączania

• Języki publikacji: EN

Abstrakty

EN

Soft switching systems in three-phase voltage source inverters usually require the use of additional elements, such as transistors, capacitors and inductors. Contrary to the existing solutions, in the proposed soft switching system, the danger of an abrupt discharge of the capacitors through the conductive transistor does not occur. Moreover, there is no risk of interruption of the inductor current, which usually causes damage to the transistors. In the paper principles of the system operation are described in detail and rules of component selection are presented. Laboratory tests were performed for different operating conditions. The test results have confirmed the operation correctness of the three-phase voltage source inverter with the proposed soft switching system.

PL

Łagodne przełączanie tranzystorów w falownikach napięcia wymaga najczęściej stosowania dodatkowych elementów, takich jak tranzystory, kondensatory i dławiki indukcyjne. W odróżnieniu od istniejących rozwiązań, w proponowanym układzie łagodnego przełączania nie występuje niebezpieczeństwo udarowego rozładowania kondensatora przez tranzystor główny falownika oraz nie ma ryzyka przerwania prądu dławika, co grozi uszkodzeniem tranzystorów. Przedstawiono zasady pracy układu, wytyczne doboru elementów. Badania laboratoryjne przeprowadzono dla różnych warunków pracy. Wyniki badań potwierdziły poprawność działania trójfazowego falownika z proponowanym układem łagodnego przełączania tranzystorów.

Słowa kluczowe

EN

soft switching; switching losses; voltage source inverter

PL

falownik napięcia; łagodne przełączanie; straty przełączania

• Wydawca: Wydawnictwo Politechniki Krakowskiej im. Tadeusza Kościuszki
• Czasopismo: Czasopismo Techniczne. Elektrotechnika
• Rocznik: 2016
• Tom: Y. 113, iss. 2-E
• Strony: 3--15
• Opis fizyczny: Bibliogr. 27 poz., wz., wykr.

Twórcy

autor

Mazgaj W.

• Institute of Electromechanical Energy Conversion, Faculty of Electrical and Computer Engineering, Cracow University of Technology

autor

Rozegnał B.

• Institute of Electromechanical Energy Conversion, Faculty of Electrical and Computer Engineering, Cracow University of Technology

autor

Szular Z.

• Institute of Electromechanical Energy Conversion, Faculty of Electrical and Computer Engineering, Cracow University of Technology

Bibliografia

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Uwagi

EN

The research presented in this paper was funded by subsidies on science granded by Polish Ministry of Science and Higher Education under the theme No. E-2/616/2016/DS „Reduction of losses in three-phase, two-level voltage source intervers by applying the soft switching system which is resistant to control disturbances”.