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Improved ZCS-PWM Commutation Cell for IGBTs Application.
- Source :
-
IEEE Transactions on Aerospace & Electronic Systems . Jul2004, Vol. 40 Issue 3, p879-888. 10p. - Publication Year :
- 2004
-
Abstract
- An improved zero-current-switching pulsewidth-modulated (ZCS-PWM) commutation cell is presented, which is suitable for high-power applications using insulated gate bipolar transistors (IGBTs) as the power swithches. It provides ZCS operation for active switches and zero-voltage-switching (ZVS) operation for passive swithches. Besides operating operating at constant frequency and reducing commutation losses, the proposed ZCS-PWM switch cell has no additional current stress and conduction loss in the main switch. To demonstrate the feasibility of the proposed ZCS-PWM commutation cell, it was applied to a boost converter. Operating principle, theoretical analysis, design guidelines, and a design example are described and verified by expriment results obtained from a prototype rated 1 kW and operating at 40 kHz. The PWM switch model and state-space averaging approach is also used to estimate and examine the steady-state and dynamic character of ZCS-PWM boost converter system. Finally, the application of the proposed soft-switching technique in the dc-dc nonisolated converters is presented. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189251
- Volume :
- 40
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Aerospace & Electronic Systems
- Publication Type :
- Academic Journal
- Accession number :
- 15039506
- Full Text :
- https://doi.org/10.1109/TAES.2004.1337461