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New Switched-Dual-Source Multilevel Inverter for Symmetrical and Asymmetrical Operation

Author

Listed:
  • Kennedy Adinbo Aganah

    (Electrical & Computer Engineering Department, Tuskegee University, Tuskegee, AL 36088, USA)

  • Cristopher Luciano

    (Electrical & Computer Engineering Department, Tuskegee University, Tuskegee, AL 36088, USA)

  • Mandoye Ndoye

    (Electrical & Computer Engineering Department, Tuskegee University, Tuskegee, AL 36088, USA)

  • Gregory Murphy

    (Electrical & Computer Engineering Department, Tuskegee University, Tuskegee, AL 36088, USA)

Abstract

The increasing integration of large solar PV and wind farms into the power grid has fueled, over the past two decades, growing demands for high-power, high-voltage, utility-scale inverters. Multilevel inverters have emerged as the industry’s choice for megawatt-range inverters because of their reduced voltage stress, capability for generating an almost-sinusoidal voltage, built-in redundancy and other benefits. This paper presents a novel switched-source multilevel inverter (SS MLI) architecture. This new inverter shows superior capabilities when compared to existing topologies. It has reduced voltage stress on the semiconductor, uses fewer switches (i.e., reduced size/weight/cost) and exhibits increased efficiency. The proposed SS MLI is comprised of two voltage sources ( V 1 , V 2 ) and six switches. It is capable of generating five-level output voltage in symmetric mode (i.e., V 1 = V 2 ) and seven-level output voltage in asymmetric mode (i.e., V 1 ≠ V 2 ). We present simulations results (using MATLAB ® /Simulink ® ) for five- and seven-level output voltages, and they strongly support the validity of the proposed inverter. These positive results are further supported experimentally using a laboratory prototype.

Suggested Citation

  • Kennedy Adinbo Aganah & Cristopher Luciano & Mandoye Ndoye & Gregory Murphy, 2018. "New Switched-Dual-Source Multilevel Inverter for Symmetrical and Asymmetrical Operation," Energies, MDPI, vol. 11(4), pages 1-13, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:984-:d:141938
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    References listed on IDEAS

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    1. Muxuan Xiao & Qianming Xu & Honglin Ouyang, 2017. "An Improved Modulation Strategy Combining Phase Shifted PWM and Phase Disposition PWM for Cascaded H-Bridge Inverters," Energies, MDPI, vol. 10(9), pages 1-14, September.
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    Cited by:

    1. Vijayaraja Loganathan & Ganesh Kumar Srinivasan & Marco Rivera, 2020. "Realization of 485 Level Inverter Using Tri-State Architecture for Renewable Energy Systems," Energies, MDPI, vol. 13(24), pages 1-29, December.
    2. Muhyaddin Rawa & Marif Daula Siddique & Saad Mekhilef & Noraisyah Mohamed Shah & Hussain Bassi & Mehdi Seyedmahmoudian & Ben Horan & Alex Stojcevski, 2019. "Design and Implementation of a Hybrid Single T-Type Double H-Bridge Multilevel Inverter (STDH-MLI) Topology," Energies, MDPI, vol. 12(9), pages 1-15, May.
    3. Hussain Mohammad Bassi & Zainal Salam, 2019. "A New Hybrid Multilevel Inverter Topology with Reduced Switch Count and dc Voltage Sources," Energies, MDPI, vol. 12(6), pages 1-15, March.

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