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Novel Interleaved Converter with Extra-High Voltage Gain to Process Low-Voltage Renewable-Energy Generation

Author

Listed:
  • Chih-Lung Shen

    (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)

  • Yan-Chi Lee

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

Abstract

This paper presents a novel interleaved converter (NIC) with extra-high voltage gain to process the power of low-voltage renewable-energy generators such as photovoltaic (PV) panel, wind turbine, and fuel cells. The NIC can boost a low input voltage to a much higher voltage level to inject renewable energy to DC bus for grid applications. Since the NIC has two circuit branches in parallel at frond end to share input current, it is suitable for high power applications. In addition, the NIC is controlled in an interleaving pattern, which has the advantages that the NIC has lower input current ripple, and the frequency of the ripple is twice the switching frequency. Two coupled inductors and two switched capacitors are incorporated to achieve a much higher voltage gain than conventional high step-up converters. The proposed NIC has intrinsic features such as leakage energy totally recycling and low voltage stress on power semiconductor. Thorough theoretical analysis and key parameter design are presented in this paper. A prototype is built for practical measurements to validate the proposed NIC.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:11:p:871-:d:81320
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    References listed on IDEAS

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    1. Ching-Ming Lai & Yuan-Chih Lin & Dasheng Lee, 2015. "Study and Implementation of a Two-Phase Interleaved Bidirectional DC/DC Converter for Vehicle and DC-Microgrid Systems," Energies, MDPI, vol. 8(9), pages 1-23, September.
    2. Sabzali, Ahmad J. & Ismail, Esam H. & Behbehani, Hussain M., 2015. "High voltage step-up integrated double Boost–Sepic DC–DC converter for fuel-cell and photovoltaic applications," Renewable Energy, Elsevier, vol. 82(C), pages 44-53.
    3. Sheng-Yu Tseng & Hung-Yuan Wang, 2013. "A Photovoltaic Power System Using a High Step-up Converter for DC Load Applications," Energies, MDPI, vol. 6(2), pages 1-33, February.
    4. Cheng-Tao Tsai & Chih-Lung Shen, 2012. "A High Step-Down Interleaved Buck Converter with Active-Clamp Circuits for Wind Turbines," Energies, MDPI, vol. 5(12), pages 1-21, December.
    5. 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.
    6. Kyoung-Ho Lee & Moon-Chang Joo & Nam-Choon Baek, 2015. "Experimental Evaluation of Simple Thermal Storage Control Strategies in Low-Energy Solar Houses to Reduce Electricity Consumption during Grid On-Peak Periods," Energies, MDPI, vol. 8(9), pages 1-21, August.
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    Cited by:

    1. Matej Bereš & Dobroslav Kováč & Tibor Vince & Irena Kováčová & Ján Molnár & Iveta Tomčíková & Jozef Dziak & Patrik Jacko & Branislav Fecko & Šimon Gans, 2021. "Efficiency Enhancement of Non-Isolated DC-DC Interleaved Buck Converter for Renewable Energy Sources," Energies, MDPI, vol. 14(14), pages 1-15, July.
    2. 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.
    3. Shin-Ju Chen & Sung-Pei Yang & Chao-Ming Huang & Huann-Ming Chou & Meng-Jie Shen, 2018. "Interleaved High Step-Up DC-DC Converter Based on Voltage Multiplier Cell and Voltage-Stacking Techniques for Renewable Energy Applications," Energies, MDPI, vol. 11(7), pages 1-17, June.
    4. Chih-Lung Shen & You-Sheng Shen & Cheng-Tao Tsai, 2017. "Isolated DC-DC Converter for Bidirectional Power Flow Controlling with Soft-Switching Feature and High Step-Up/Down Voltage Conversion," Energies, MDPI, vol. 10(3), pages 1-23, March.

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