This paper proposes a single-phase single-stage couple inductor split-source Boost inverter suitable for new energy power generation.The proposed converter has the following characteristics:1)High output voltage Boost factor by adopting the Δ-source coupled inductor structure,as well as a more free degree of freedom in adjusting the output voltage gain;2)improved reliability of the inverter by implementing the dual-Buck structure to suppress the shoot-through current;3)a high modulation factor under the condition of high output voltage gain,thereby improving the quality of the output voltage waveform.Comprehensive working principles,modulation strategy,steady-state analysis and parameter design guideline are introduced;both simulation and experimental results are presented to confirm the characteristics of the proposed topology.
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