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A High Step-Down Interleaved Buck Converter with Active-Clamp Circuits for Wind Turbines

Author

Listed:
  • Cheng-Tao Tsai

    (Department of Electrical Engineering, National Chin-Yi University of Technology, Taichung 41170, Taiwan)

  • Chih-Lung Shen

    (Department of Electronic Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 824, Taiwan)

Abstract

In this paper, a high step-down interleaved buck coupled-inductor converter (IBCC) with active-clamp circuits for wind energy conversion has been studied. In high step-down voltage applications, an IBCC can extend duty ratio and reduce voltage stresses on active switches. In order to reduce switching losses of active switches to improve conversion efficiency, a IBCC with soft-switching techniques is usually required. Compared with passive-clamp circuits, the IBCC with active-clamp circuits have lower switching losses and minimum ringing voltage of the active switches. Thus, the proposed IBCC with active-clamp circuits for wind energy conversion can significantly increase conversion efficiency. Finally, a 240 W prototype of the proposed IBCC with active-clamp circuits was built and implemented. Experimental results have shown that efficiency can reach as high as 91%. The proposed IBCC with active-clamp circuits is presented in high step-down voltage applications to verify the performance and the feasibility for energy conversion of wind turbines.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:5:y:2012:i:12:p:5150-5170:d:22017
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    References listed on IDEAS

    as
    1. Chih-Lung Shen & Cheng-Tao Tsai, 2012. "Double-Linear Approximation Algorithm to Achieve Maximum-Power-Point Tracking for Photovoltaic Arrays," Energies, MDPI, vol. 5(6), pages 1-16, June.
    2. Cheng-Tao Tsai, 2012. "Energy Storage System with Voltage Equalization Strategy for Wind Energy Conversion," Energies, MDPI, vol. 5(7), pages 1-20, July.
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    Cited by:

    1. Cheng-Tao Tsai & Chih-Lung Shen & Jye-Chau Su, 2013. "A Power Supply System with ZVS and Current-Doubler Features for Hybrid Renewable Energy Conversion," Energies, MDPI, vol. 6(9), pages 1-20, September.
    2. 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.
    3. Yi-Feng Wang & Liang Yang & Cheng-Shan Wang & Wei Li & Wei Qie & Shi-Jie Tu, 2015. "High Step-Up 3-Phase Rectifier with Fly-Back Cells and Switched Capacitors for Small-Scaled Wind Generation Systems," Energies, MDPI, vol. 8(4), pages 1-27, April.
    4. Shen, Chih-Lung & Ko, Yong-Xian, 2014. "Hybrid-input power supply with PFC (power factor corrector) and MPPT (maximum power point tracking) features for battery charging and HB-LED driving," Energy, Elsevier, vol. 72(C), pages 501-509.

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