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

Yu-Chen Liu, Ming-Cheng Chen, Chun-Yu Yang, Katherine Kim, Huang-Jen Chiu
2018 Energies  
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
more » ... d system, which achieves 95% power conversion efficiency at full load.
doi:10.3390/en11030569 fatcat:rxthayytejesbjfwhszzil2ekq