High gain multiphase boost converter based-on capacitor clamping structure

Oday Saad Fares, Jasim Farhood Hussen

Abstract


In the last few years, the non-isolated dc converters involving high voltage gain with adequate performance are becoming quite popular in industrial applications. This is resulting in high voltage and current stress on the power device (switches and diodes), as well as a limited output voltage with a high duty cycle. This paper proposes a multi-phase non-isolated boost converter that uses capacitor clamping to increase output voltage while reducing stress across the power device. There are two stages in the proposed converter (first stage is three inductors and three switches and the second stage is clamper circuit of three capacitors and three diodes). The proposed converter is high voltage gain, with low voltage stress through switches transistors. To justify the theoretical analysis, the concept was validated through mathematical analysis and by simulation using MATLAB/SIMULINK. The results carried out the results permit the converter behavior and performance to be accurately.


Keywords


Capacitor clamping structure; DC-DC converter; High voltage gain; Multiphase boost converter;

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DOI: http://doi.org/10.11591/ijeecs.v24.i2.pp689-696

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