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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Mishra, Maruti Nandan
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Control & Systems Engineering Electrical & Electronics Engineering

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Design and analysis of seven-level hybrid modified H-bridge multilevel inverter Dwivedi, Arpan; Kumar, Raman; Sourabh, Sailesh; Rajak, Vikash; Singh, Vikash Kumar; Mishra, Maruti Nandan
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i3.pp1731-1739

Abstract

This paper introduces a novel boosting multilevel inverter that utilizes switched capacitors. Current multilevel inverters (MLIs) face several issues, such as complex structures, intricate switching controls, and challenges in generating gate pulses, numerous components, and high voltage stress on semiconductors. The increase in the number of levels adds to the complexity and cost of the circuit and can reduce reliability in some cases. The proposed topology creates a 7-level voltage waveform using 9 switches, 1 diode, and 2 capacitors, and it triples the voltage gain. The capacitors maintain self balanced operation without the need for additional circuits. A simple logic gate-based pulse-width modulation (PWM) technique is presented to ensure power balancing of the capacitors. The proposed 7-level switched capacitor boosting multilevel inverter features a reduced switch count, lower voltage stress, and built-in fault tolerance. The paper includes a comprehensive comparison of various related topologies. The proposed topology is simulated in PSIM, with simulation results presented for different parameters.
Co-Authors Dwivedi, Arpan Kumar, Raman Rajak, Vikash Singh, Vikash Kumar Sourabh, Sailesh