Active Clamp Dual Flyback Inverter for Low Cost and High-Efficient Microinverter Application

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Abstract: The paper deals with the analysis and experimental verification of dual fly-back SiC inverter (DFBI) suited for isolated, low cost and high-efficiency photovoltaic microinverter application, while active and reactive power generation is possible. The DFBI topology is relatively simple single stage DC/AC power conversion topology. High power conversion efficiency can be reached with this topology if modern SiC devices and active clamp, quasi-resonant switching circuitry are implemented within DFBI design. The state-space analysis makes possible to work-out DC transfer characteristics depending on duty cycle control parameter, whereby this dependency is consequently implemented within the experimental sample. Efficiency characteristics of DFBI inverter are investigated at different switching frequencies and circuit parameters in order to better understand the technical limits of this power topology.

WSEAS Transactions on Electronics, ISSN / E-ISSN: 1109-9518 / 2224-2902, Volume 10, 2019, Art. #4

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M. Frivaldsky, "Active Clamp Dual Flyback Inverter for Low Cost and High-Efficient Microinverter Application," WSEAS Transactions on Electronics, vol. 10, pp. 28-32, 2019, DOI:
M. Frivaldsky. Active Clamp Dual Flyback Inverter for Low Cost and High-Efficient Microinverter Application. WSEAS Transactions on Electronics. 2019;10:28-32.
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