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August 7, 2023IEEE Journal of Emerging and Selected Topics in Industrial ElectronicsOpen Access

An Ultra-Step-Up Quadratic Boost DC–DC Converter Based on Coupled Inductors and Quasi-Resonance Operation

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Authors

MNMasoud NikbakhtKAKarim AbbaszadehSASohrab Abbasian

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Overview

Experimental study demonstrates high voltage gain and 96.28% peak efficiency using a 480W prototype, highlighting viable power conversion for low-voltage solar and fuel cell systems.

Key Points

  • To develop a high-gain quadratic boost DC–DC converter that minimizes switch voltage stress and switching losses for low-voltage renewable power sources.
  • Integrated coupled inductors and a voltage doubler rectifier (VDR) into a quadratic boost topology to achieve high voltage gain at low duty cycles.
  • Implemented quasi-resonant operation to achieve zero current switching (ZCS) across VDR output diodes and lower turn-off current in the switches.
  • Constructed and tested a 480-W laboratory hardware prototype to evaluate operational efficiency and performance characteristics.
  • Demonstrated a maximum power conversion efficiency of 96.28% in the 480-W experimental prototype.
  • Lowered switch voltage stress and switch turn-off currents below peak values, reducing overall switching losses.
  • Successfully mitigated diode reverse recovery problems by securing zero current switching during diode turn-on and turn-off transitions.

Cite This Study

Nikbakht et al. (2023) studied this question.

synapsesocial.com/papers/69ffbd79e4618ba4162d8e29https://doi.org/10.1109/jestie.2023.3302706
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