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High-Efficiency Isolated Photovoltaic Microinverter Using Wide-Band Gap Switches for Standalone and Grid-Tied Applications

Author

Listed:
  • Yu-Chen Liu

    (Department of Electrical Engineering, National Ilan University, No. 1, Section 1, Shennong Road, Yilan 260, Taiwan)

  • Ming-Cheng Chen

    (Department of Electronic Engineering, National Taiwan University of Science and Technology, No. 43, Section 4, Keelung Road, Da’an District, Taipei 106, Taiwan)

  • Chun-Yu Yang

    (Department of Electronic Engineering, National Taiwan University of Science and Technology, No. 43, Section 4, Keelung Road, Da’an District, Taipei 106, Taiwan)

  • Katherine A. Kim

    (School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil Ulju-gun, Ulsan 44919, Korea)

  • Huang-Jen Chiu

    (Department of Electronic Engineering, National Taiwan University of Science and Technology, No. 43, Section 4, Keelung Road, Da’an District, Taipei 106, Taiwan)

Abstract

An isolated photovoltaic micro-inverter for standalone and grid-tied applications is designed and implemented to achieve high efficiency. System configuration and design considerations, including the proposed active-clamp forward-flyback resonant converter for the DC-DC stage and a dual-frequency full-bridge inverter for the DC-AC stage, are analyzed and discussed. A prototype microinverter system is built and tested. Experimental results verify the feasibility of the proposed system, which achieves 95% power conversion efficiency at full load.

Suggested Citation

  • Yu-Chen Liu & Ming-Cheng Chen & Chun-Yu Yang & Katherine A. Kim & Huang-Jen Chiu, 2018. "High-Efficiency Isolated Photovoltaic Microinverter Using Wide-Band Gap Switches for Standalone and Grid-Tied Applications," Energies, MDPI, vol. 11(3), pages 1-15, March.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:3:p:569-:d:134975
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    References listed on IDEAS

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    1. Jukka Viinamäki & Alon Kuperman & Teuvo Suntio, 2017. "Grid-Forming-Mode Operation of Boost-Power-Stage Converter in PV-Generator-Interfacing Applications," Energies, MDPI, vol. 10(7), pages 1-23, July.
    2. Faa Jeng Lin & Hsuang Chang Chiang & Jin Kuan Chang, 2016. "Modeling and Controller Design of PV Micro Inverter without Using Electrolytic Capacitors and Input Current Sensors," Energies, MDPI, vol. 9(12), pages 1-17, November.
    3. Teuvo Suntio & Tuomas Messo & Aapo Aapro & Jyri Kivimäki & Alon Kuperman, 2017. "Review of PV Generator as an Input Source for Power Electronic Converters," Energies, MDPI, vol. 10(8), pages 1-25, July.
    4. Jaime Wladimir Zapata & Samir Kouro & Gonzalo Carrasco & Hugues Renaudineau, 2018. "Step-Up Partial Power DC-DC Converters for Two-Stage PV Systems with Interleaved Current Performance," Energies, MDPI, vol. 11(2), pages 1-11, February.
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    Cited by:

    1. J. C. Teo & Rodney H. G. Tan & V. H. Mok & Vigna K. Ramachandaramurthy & ChiaKwang Tan, 2018. "Impact of Partial Shading on the P-V Characteristics and the Maximum Power of a Photovoltaic String," Energies, MDPI, vol. 11(7), pages 1-22, July.
    2. HwaPyeong Park & DoKyoung Kim & SeungHo Baek & JeeHoon Jung, 2019. "Extension of Zero Voltage Switching Capability for CLLC Resonant Converter," Energies, MDPI, vol. 12(5), pages 1-14, March.
    3. Cheng Lv & Xiaodong Zheng & Nengling Tai & Shi Chen, 2018. "Single-Ended Protection Scheme for VSC-Based DC Microgrid Lines," Energies, MDPI, vol. 11(6), pages 1-17, June.

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