Abstract
Increased usage of renewable energy sources has boosted the demand for power electronics converters. Indeed, the DC/DC flyback converter is nowadays frequently used in applications where isolation is required, due to its low component count, simple structure and high energy efficiency. One of the major challenges faced in a flyback converter is the excess voltage stress sensed by its semiconductor devices, because of the interrupted current flow through its transformer leakage inductances. In this paper, a high-efficient bidirectional flyback converter, operating in discontinuous conduction mode, is examined with an integrated RCDD snubber. Additionally, experimental comparison where the converter runs with a typical RCD and RCDD snubber network, is done. Experimental results on an IGBT-based bidirectional flyback converter validate the applicability of the RCDD snubber demonstrating energy efficiency above 90%. Furthermore, the operation of the bidirectional converter with the employed snubber is thoroughly analysed and an appropriate mathematical analysis is conducted highlighting all the design specifications of the proposed snubber.
Original language | English |
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Title of host publication | Proceedings of 2015 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 |
Number of pages | 10 |
Publisher | IEEE Press |
Publication date | Oct 2015 |
Article number | 7309439 |
ISBN (Print) | 9789075815221 |
DOIs | |
Publication status | Published - Oct 2015 |
Event | 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 - Centre International de Conférence Genève (CICG), 17 rue Varembé CH . 1211 Genève 20, Geneva, Switzerland Duration: 8 Sept 2015 → 10 Sept 2015 |
Conference
Conference | 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 |
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Location | Centre International de Conférence Genève (CICG), 17 rue Varembé CH . 1211 Genève 20 |
Country/Territory | Switzerland |
City | Geneva |
Period | 08/09/2015 → 10/09/2015 |
Keywords
- Bidirectional converter
- Flyback
- RCDD
- Snubber