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Integrated Three-Voltage-Booster DC-DC Converter to Achieve High Voltage Gain with Leakage-Energy Recycling for PV or Fuel-Cell Power Systems

Author

Listed:
  • Chih-Lung Shen

    (Department of Electronic Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 82445, Taiwan)

  • Hong-Yu Chen

    (Department of Electronic Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 82445, Taiwan)

  • Po-Chieh Chiu

    (Department of Electronic Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 82445, Taiwan)

Abstract

In this paper, an integrated three-voltage-booster DC-DC (direct current to direct current) converter is proposed to achieve high voltage gain for renewable-energy generation systems. The proposed converter integrates three voltage-boosters into one power stage, which is composed of an active switch, a coupled-inductor, five diodes, and five capacitors. As compared with conventional high step-up converters, it has a lower component count. In addition, the features of leakage-energy recycling and switching loss reduction can be accomplished for conversion efficiency improvement. While the active switch is turned off, the converter can inherently clamp the voltage across power switch and suppress voltage spikes. Moreover, the reverse-recovery currents of all diodes can be alleviated by leakage inductance. A 200 W prototype operating at 100 kHz switching frequency with 36 V input and 400 V output is implemented to verify the theoretical analysis and to demonstrate the feasibility of the proposed high step-up DC-DC converter.

Suggested Citation

  • Chih-Lung Shen & Hong-Yu Chen & Po-Chieh Chiu, 2015. "Integrated Three-Voltage-Booster DC-DC Converter to Achieve High Voltage Gain with Leakage-Energy Recycling for PV or Fuel-Cell Power Systems," Energies, MDPI, vol. 8(9), pages 1-17, September.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:9:p:9843-9859:d:55449
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    References listed on IDEAS

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    1. Al-Saffar, Mustafa A. & Ismail, Esam H., 2015. "A high voltage ratio and low stress DC–DC converter with reduced input current ripple for fuel cell source," Renewable Energy, Elsevier, vol. 82(C), pages 35-43.
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    Cited by:

    1. Miran Rodič & Miro Milanovič & Mitja Truntič & Benjamin Ošlaj, 2018. "Switched-Capacitor Boost Converter for Low Power Energy Harvesting Applications," Energies, MDPI, vol. 11(11), pages 1-29, November.
    2. Yiwang Wang & Chun Gan & Kai Ni & Xinhua Li & Houjun Tang & Yong Yang, 2017. "A Multifunctional Isolated and Non-Isolated Dual Mode Converter for Renewable Energy Conversion Applications," Energies, MDPI, vol. 10(12), pages 1-17, November.
    3. Yu-En Wu & Yu-Lin Wu, 2016. "Design and Implementation of a High Efficiency, Low Component Voltage Stress, Single-Switch High Step-Up Voltage Converter for Vehicular Green Energy Systems," Energies, MDPI, vol. 9(10), pages 1-16, September.
    4. Chih-Lung Shen & Po-Chieh Chiu & Yan-Chi Lee, 2016. "Novel Interleaved Converter with Extra-High Voltage Gain to Process Low-Voltage Renewable-Energy Generation," Energies, MDPI, vol. 9(11), pages 1-12, October.

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