New soft switching system for three-phase three-level voltage source inverters
Authors:
- Witold Mazgaj,
- Zbigniew Szular,
- Bartosz Woszczyna
Abstract
The paper deals with a new soft switching system in three-phase three-level voltage source inverters. In the majority of soft switching systems applied until now, additional capacitors are connected in parallel to main transistors and very often special inductors are connected in series to auxiliary transistors. In cases when disturbances in the control system of the voltage source inverters would occur, the main or auxiliary transistors can be damaged because capacitors can be abrupt discharged through the main conductive transistors or sudden interruption of the inductor current can cause overvoltages which may be dangerous for semiconductor elements. Above mentioned disadvantages do not occur in the proposed soft switching system and the control method of the transistor switching is simpler in comparison to the existing soft switching systems. This paper presents switching principles of all transistor of the three-phase three-level voltage source inverter, and guidelines for the selection of elements of this system are briefly discussed. The working correctness of the new soft switching system was validated during laboratory tests, and attention was also paid to certain limitations of the control algorithm. The proposed system is recommended for medium and high power inverters.
- Record ID
- CUTcbda750e3c484c198d69caf953034045
- Publication categories
- ; ;
- Author
- Pages
- [1-10]
- Other elements of collation
- rys.; Bibliografia (na s.) - 9-10; Bibliografia (liczba pozycji) - 18; Oznaczenie streszczenia - Abstr.
- Book
- 2018 20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe), European Conference on Power Electronics and Applications (EPE), 2018, [S.l.], Institute of Electrical and Electronics Engineers, IEEE, 10 p., ISBN 978-9-0758-1528-3 (electronic)
- Keywords in English
- multilevel converters, soft switching, switching losses, Voltage Source Inverters (VSI) , ZCZVS converters
- URL
- https://ieeexplore.ieee.org/document/8515469 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 20
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTcbda750e3c484c198d69caf953034045/
- URN
urn:pkr-prod:CUTcbda750e3c484c198d69caf953034045
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