Design and implementation of a high step-up boost-fly back converter with soft switching
Journal Title: روش های هوشمند در صنعت برق - Year 2016, Vol 7, Issue 28
Abstract
In this paper a new soft switching boost-flyback converter is introduced to eliminate conventional boost-flyback converter problems in the high voltage applications. The main application of this converter is conction of PV system to the power system. In the proposed converter not only the operating duty cycles proper in high voltage gains but also the switch voltage stress is lower than output voltage. Also, in the proposed converter any auxiliary switch or magnetic core has not been used so the number of converter components has not increased much in comparison with the conventional boost-flyback converter. The operation principles of the proposed converter and its theoretical operation waveforms is presented. In order to justify the theoretical analysis, a prototype of the proposed converter is designed, simulated and experimentally implemented. The simulation and practical results are presented for a 100w boost-flyback converter with input voltage of 40V and output voltage of 400V.
Authors and Affiliations
Ghasem Haghshenas, Seyyed Mohammad Mehdi Mirtalaee
Keywords
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