isolated step-up converter with reduced voltage stress for low-dc renewable energy sources
G.SARANYA,K.SRINIVASAN
Published in International Journal of Advanced Research in Electrical and Electronics Engineering
ISSN: 2321-4775 Impact Factor:1.6 Volume:3 Issue:1 Year: 26 June,2014 Pages:79-85
Abstract
This paper proposes a dual active- clamped step-up DC-DC converter. The proposed converter has the dual active-clamping circuit with parallel-connected two transformers. Compared to the previous active- clamped step-up DC-DC converters, the voltage stresses of the semiconductor devices can be reduced in the proposed converter. The proposed converter has low switching power losses and high power efficiency. The use of parallel-connected two transformers gives a low-profile design for the step-up DC-DC converter for low-DC renewable energy sources like photovoltaic module and fuel cell. The performance of the proposed converter is verified from 350 W (350 V / 1 A) experimental prototype circuit for 50 V photovoltaic module voltage.
Kewords
DC-DC converter
Reference
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