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Enhanced Five-Level Inverter Design with Lower Leakage Current for Photovoltaic Applications

  • Unique Paper ID: 179422
  • Volume: 11
  • Issue: 12
  • PageNo: 6181-6187
  • Abstract:
  • There’s a noticeable rise happening in the utilization of renewable energy sources, and the usage of photovoltaic cells to capture solar radiation and convert it into electrical power is growing.Since photovoltaic cells generate DC voltage, an inverter is required to connect them to the AC power grid, either directly or through a transformer. Transformerless inverters are widely preferred due to their reduced cost, lower power losses, and lightweight construction. However, one of the primary challenges associated with these inverters is the presence of leakage currents, which need to be effectively mitigated. In this study, a novel dual-connection topology is introduced to stabilize the common-mode voltage and significantly reduce leakage current. The proposed inverter generates a five-level output voltage, which contributes to lower harmonic distortion in the output current when compared to conventional two-level or threelevel inverters. The operational principles and output characteristics of the new topology are thoroughly analyzed. Simulation of the inverter circuit was conducted using MATLAB/Simulink, and its performance was evaluated against several established inverter designs.
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Cite This Article

  • ISSN: 2349-6002
  • Volume: 11
  • Issue: 12
  • PageNo: 6181-6187

Enhanced Five-Level Inverter Design with Lower Leakage Current for Photovoltaic Applications

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