In this article, an improved single-phase dual-ground transformerless inverter topology is proposed. The proposed inverter topology is able to generate a 7L output voltage waveform with a boosting factor of 1.5. The increased voltage gain of the proposed topology does not result in increased voltage stress on the components. The proposed structure requires 8 IGBTs, one diode, and three switched capacitors (SCs) with self-voltage balancing. To further reduce leakage current, the proposed topology employs a dual ground configuration between the source's negative terminal and the grid's neutral. A comparison with recent seven-level inverter topologies is included to emphasize the proposed topology's benefits. After confirming the viability of the proposed topology through simulation using the Simulink platform, an experimental validation using 1 kW is carried out using a prototype setup, and the results are measured.


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    Title :

    Single-Phase Dual Ground 7L Inverter Topology with Reduced Component Count and Stress


    Contributors:


    Publication date :

    2024-07-31


    Size :

    2480909 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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