Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Generalized switched-capacitor multilevel inverter topology with self-balancing capacitors

  • Jena, Kasinath (School of Electrical enginering, Kalinga Institute of Industrial Technology (KIIT)) ;
  • Panigrahi, Chinmoy Kumar (School of Electrical enginering, Kalinga Institute of Industrial Technology (KIIT)) ;
  • Gupta, Krishna Kumar (Department of Electrical and Instrumentation Engineering, Thapar Institute of Engineering and Technology (TIET)) ;
  • Kumar, Dhananjay (Department of Electrical Engineering, Maulana Azad National Institute of Technology (MANIT)) ;
  • Dewangan, Niraj Kumar (Department of Electrical Engineering, National Institute of Technology (NIT))
  • Received : 2021.07.26
  • Accepted : 2022.04.28
  • Published : 2022.09.20
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Abstract

This paper presents a switched-capacitor topology with fewer switching components and reduced voltage stresses. The circuit contains eight switches and two capacitors to generate a five-level voltage waveform. This paper provides in-depth descriptions of the structural design, operation, and loss analysis. Inherently self-balanced capacitors are utilized in the proposed topology, which eliminates the need for additional charge balancing circuits and sensors. The control action was implemented using a simple logic-based multicarrier pulse width modulation (PWM) strategy. A brief comparative analysis with state-of-the-art topologies has been presented to demonstrate the merits of the developed topology. Finally, the feasibility and efficacy of the suggested topology have been evaluated using simulation and experimental testing to ensure that it is both feasible and effective.

Keywords

References

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