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<p>This paper proposes a Dual-Input Single-Output (DISO) boost DC–DC converter utilizing switched capacitors and switched inductors, designed specifically for fuel cell vehicles. The topology achieves high voltage gain over a wide input voltage range and duty cycle, requiring minimal components and maintaining low voltage stress across them. The operation of the proposed converter and its steady-state analysis are thoroughly discussed. Additionally, small-signal modeling and a PI controller are developed to regulate the output voltage under dynamic conditions. A comparative study with existing converters highlights the superiority of the proposed design. The performance of the converter and its control system is validated through simulations in the MATLAB/SIMULINK environment across all power modes.</p>

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A New Dual-Input Bidirectional DC-DC Converter with Enhanced Voltage Gain and Reduced Part Count

  • 期刊论文

  • 发表日期：

    2025年1月24日

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  • Venkata Lakshmi Narayana Divakar Rachakonda,
  • Syamnaresh Garlapati,
  • Kishore Yadlapati

摘要

This paper proposes a Dual-Input Single-Output (DISO) boost DC–DC converter utilizing switched capacitors and switched inductors, designed specifically for fuel cell vehicles. The topology achieves high voltage gain over a wide input voltage range and duty cycle, requiring minimal components and maintaining low voltage stress across them. The operation of the proposed converter and its steady-state analysis are thoroughly discussed. Additionally, small-signal modeling and a PI controller are developed to regulate the output voltage under dynamic conditions. A comparative study with existing converters highlights the superiority of the proposed design. The performance of the converter and its control system is validated through simulations in the MATLAB/SIMULINK environment across all power modes.