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A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current

Author

Listed:
  • Vishal Anand

    (Department of Electrical Engineering, NIT Raipur, Raipur 492010, India)

  • Varsha Singh

    (Department of Electrical Engineering, NIT Raipur, Raipur 492010, India)

  • M. Jagabar Sathik

    (Renewable Energy Laboratory, Prince Sultan University, Salahuddin, Riyadh 12435, Saudi Arabia
    Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Kattankulathur Campus, Chengalpattu 603203, India)

  • Dhafer Almakhles

    (Renewable Energy Laboratory, Prince Sultan University, Salahuddin, Riyadh 12435, Saudi Arabia)

Abstract

This article presents a novel quadruple boost inverter (QBI) with an integrated boost stage that comprises an inductor, a capacitor, a switch, and an input source. The inductor on the input side limits the inrush current and also the capacitor charging current ripples. The QBI topology comprises a dc source, an input inductor, nine switches, three diodes, and capacitors. This produces a nine-level waveform, which reduces the need for additional filters such as inductors and capacitors. The proposed QBI is elementary, compact, and needs fewer components than existing nine levels inverter. Compared to the typical triangular carrier-based sinusoidal pulse width modulation, the newly developed parabolic level-shifted carrier has a much greater RMS value. Another advantage of the proposed topology is extension for generating higher voltage levels without increment in the blocking voltage across the switches. This makes the topology ideal for medium voltage high power applications. The output voltage has been determined in terms of selection, sizing, and expression. The proposed QBI is compared to existing similar nine-level inverters in order to assess its efficacy. The experiment is performed on a laboratory prototype to state the practical feasibility of QBI topology for the inductive load, variation in input, load, and modulation index.

Suggested Citation

  • Vishal Anand & Varsha Singh & M. Jagabar Sathik & Dhafer Almakhles, 2022. "A Generalized Switched-Capacitor Multilevel Inverter Topology with Voltage Boosting Ability and Reduced Inrush Current," Energies, MDPI, vol. 15(23), pages 1-14, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:9158-:d:991804
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    References listed on IDEAS

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    1. Lingling Cao & Jiefeng Lin & Shikai Chen & Yuanmao Ye, 2021. "Symmetrical Cascaded Switched-Capacitor Multilevel Inverter Based on Hybrid Pulse Width Modulation," Energies, MDPI, vol. 14(22), pages 1-15, November.
    2. Hossein Khoun Jahan & Reyhaneh Eskandari & Tohid Rahimi & Rasoul Shalchi Alishah & Lei Ding & Kent Bertilsson & Mehran Sabahi & Frede Blaabjerg, 2021. "A Limited Common-Mode Current Switched-Capacitor Multilevel Inverter Topology and Its Performance and Lifetime Evaluation in Grid-Connected Photovoltaic Applications," Energies, MDPI, vol. 14(7), pages 1-18, March.
    3. Hao Qiang & Zhenyu Wu & Tian Xu & Pengcheng Kong & Shuren Mao & Jianfeng Zheng, 2021. "Boost Voltage Single Phase Full Bridge Inverter with No Voltage Drop Based on Switched Capacitor," Energies, MDPI, vol. 14(12), pages 1-18, June.
    Full references (including those not matched with items on IDEAS)

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