Analysis, design, and implementation of a bidirectional double-boost DC-DC converter

Tsorng Juu Liang, Hsiu Hao Liang, Shih Ming Chen, Jiann Fuh Chen, Lung Sheng Yang

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


This paper presents a new bidirectional dc-dc converter with a high conversion ratio for renewable energy systems. The coupled-inductor technique is used to achieve a high conversion ratio with very simple control circuits. In discharging mode, the converter acts as a two-stage boost converter, controlling one power switch to achieve high-voltage step-up conversion. In charging mode, the converter acts as two cascaded buck converters that control two power switches simultaneously to achieve high-voltage step-down conversion. The operating principles and analysis of the steady-state characteristics are discussed in great detail. Finally, a 24-V/200-V prototype circuit with output power of 200 W is implemented to verify the feasibility of the proposed converter. The maximum efficiency levels in discharging and charging modes are about 94.3% and 91.6%, respectively.

Original languageEnglish
Article number2315504
Pages (from-to)3955-3962
Number of pages8
JournalIEEE Transactions on Industry Applications
Issue number6
Publication statusPublished - 2014 Nov 1

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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