Abstract
In this paper a novel soft switching method for an interleaved boost converter has been introduced and implemented in a PV system. Having low switching losses, high step up ratio, low voltage and current ripples in PV application is something desirable. Robustness and cost are usually neglected in other research related to this subject. Proposed soft switching method in this article does not contain any auxiliary switches however it provide full zero voltage switching condition in turn-off mode and zero current switching in turn-on mode. This simple and effective method in addition to soft switching provide the interleaved boost converter with more stability, because it operates under discrete conduction mode(DCM). At the other hand interleaving three boost converter lead DC-DC converter toward lower current and voltage ripples at both input and output. It is noteworthy that proposed IBC has higher power rate in comparison with single phase boost converters so it can be used in PV power generation system with higher generated power. In order to show the effectiveness of the proposed method a 0.5kW DC-DC converter has been simulated and the results verify the claims which have been made.
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