A High Step-Up DC-DC Converter With Three-Winding Coupled Inductor for Sustainable Energy Systems

Tsorng Juu Liang, Peng Luo, Kai Hui Chen

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

This article proposes a high step-up dc-dc converter with a continuous input current that is suitable for sustainable energy systems. A three-winding coupled inductor, two power switches, three diodes, and three capacitors are utilized to perform the functions of active switched inductor and switched capacitor. By charging the two primary windings in parallel, and discharging the two primary windings in series to the intermediate capacitor and the output, the conversion ratio can be further improved with lower voltage stresses and current stresses on its power switches. In addition, the energy stored in the leakage inductance is recycled to reduce the voltage spikes of the power switches. Eventually, a laboratory prototype with an input voltage of 36-48 V, and output voltage of 400-600 V with a rated power of 600 W is implemented to validate the correctness and effectiveness of the theoretical analyses. The maximum efficiency and full load efficiency are 97% and 96.2%, respectively.

Original languageEnglish
Pages (from-to)10249-10258
Number of pages10
JournalIEEE Transactions on Industrial Electronics
Volume69
Issue number10
DOIs
Publication statusPublished - 2022 Oct 1

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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