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Self-balanced switched-capacitor (SC) multilevel inverters (MLIs) have gained significant attention for their capability to enhance power quality in renewable energy and high-frequency electrical systems. This article presents a novel 13-level SCMLI topology (SCMLIT) that utilizes a reduced number of components (RDC) and operates with a single DC source. The proposed design achieves both voltage boosting and self-balancing of SCs through strategically managed charging and discharging sequences. The performance of the 13-level SCMLIT is validated through a comparative analysis against recent MLI topologies, considering parameters such as component count, total standing voltage, voltage gain, and cost efficiency. Furthermore, experimental results confirm the proposed SCMLIT’s reliable operation under both linear and nonlinear load conditions, as well as during transient states.

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High Voltage Gain Multilevel Inverter Topology with Reduced Device Count and Low Voltage Stress

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  • 发表日期：

    2025年

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  • Prayag Chandra Barik,
  • Narayan Nayak,
  • Sidharth Samantara,
  • Ashwini Kumar Sahu,
  • Kasinath Jena,
  • Dhananjay Kumar,
  • Vishal Rathore,
  • Ramjee Prasad Gupta

摘要

Self-balanced switched-capacitor (SC) multilevel inverters (MLIs) have gained significant attention for their capability to enhance power quality in renewable energy and high-frequency electrical systems. This article presents a novel 13-level SCMLI topology (SCMLIT) that utilizes a reduced number of components (RDC) and operates with a single DC source. The proposed design achieves both voltage boosting and self-balancing of SCs through strategically managed charging and discharging sequences. The performance of the 13-level SCMLIT is validated through a comparative analysis against recent MLI topologies, considering parameters such as component count, total standing voltage, voltage gain, and cost efficiency. Furthermore, experimental results confirm the proposed SCMLIT’s reliable operation under both linear and nonlinear load conditions, as well as during transient states.