Analysis and Implementation of a High Step-Up DC-DC Converter Integrating a Hybrid Voltage Multiplier Cell and a Coupled Inductor

Articles in Press

Document Type : Research paper

Authors

1 Energy Management Research Center, University of Mohaghegh Ardabili, Ardabil, Iran.

2 The National University of Science and Technology Politehnica Bucharest, Pitești, University Centre, 110040 Pitesti, Romania.

Abstract

This research introduces a modified design for non-isolated DC-DC converters with a high voltage gain using the design concepts of a coupled inductor (CI) and a hybrid voltage multiplier cell. It is attainable to further increase the output gain without requiring a higher duty cycle or a large turn ratio of CI. This means that the power switch won't be under too much voltage stress. The suggested converter's important features are low maximum voltage across all semiconductor components, considerable efficiency, and a substantial voltage conversion ratio. In addition, the suggested topology includes diodes with soft switching conditions, which allows for a reduction in reverse recovery losses and an improvement in system efficiency. The proposed topology includes input current continuity, a single power switch, and a common ground between the source and the load. Operating analysis, theoretical definitions, efficiency investigation, and a literature review of comparable structures have been considered to demonstrate the proposed structure's functionality. An experimental prototype has also been established, featuring 115V output voltage, 20V input voltage, and 40kHz switching frequency, to facilitate the assessment of the proposed converter's efficacy.

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References

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Journal of Operation and Automation in Power Engineering

Articles in Press, Corrected Proof
Available Online from 29 June 2024

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History

  • Receive Date: 12 May 2024
  • Revise Date: 10 June 2024
  • Accept Date: 14 June 2024
  • First Publish Date: 29 June 2024

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