Abstract
ABSTRACT In this paper, an interleaved zero-voltage transition (ZVT) high step-up converter is presented. The proposed converter has the coupled inductors and the switched capacitor to increase the voltage gain, but the coupled inductors are not at the input, so the input current is continuous, which makes this converter suitable for photovoltaic systems. Since all switches, including main and auxiliary switches, are switched at zero-voltage condition, the efficiency of the converter is high. Therefore, the voltage stress on the switches has also decreased. The proposed converter has been thoroughly analysed and a prototype has been developed to prove theoretical analyses. The experimental results show an improvement of 4% in efficiency and 9 dB.µV in noise compared to hard switching counterpart.
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