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A Novel Hexagonal-Shaped Multilevel Inverter with Reduced Switches for Grid-Integrated Photovoltaic System

Author

Listed:
  • Md. Tariqul Islam

    (Electrical and Electronic Engineering Department, Faculty of Engineering, Green University of Bangladesh, Dhaka 1207, Bangladesh)

  • Hady H. Fayek

    (Electromechanics Engineering Department, Faculty of Engineering, Heliopolis University, Cairo 11785, Egypt)

  • Eugen Rusu

    (Department of Mechanical Engineering, Faculty of Engineering, ‘Dunarea de Jos’ University of Galati, Domneasca Street, Galati 800008, Romania)

  • Md. Fayzur Rahman

    (Electrical and Electronic Engineering Department, Faculty of Engineering, Green University of Bangladesh, Dhaka 1207, Bangladesh)

Abstract

To date, the grid-connected solar photovoltaic (PV) system has drawn consideration from researchers and academicians due to the speedy improvement and the declining price of solar panels. The proficiency and dependability of a grid integrated PV system rest mainly on the power conversion unit and the proper controlling mechanism. This paper introduces a novel asymmetric hexagonal-shaped fifteen-level inverter designed to feed a grid-integrated solar PV system. First, it aims to reduce the number of components and thereby decrease the installation space and cost of the multilevel inverter. Moreover, it has a low total blocking voltage (TBV) and total device rating (TDR) and uses few switching devices for generating per level of output voltage. The proposed topology utilizes only eight switching devices for generating fifteen levels at the output, which is lower than conventional multilevel inverter topologies. Here, a low-frequency modulation scheme using the half-height (HH) method generates switching pulses to minimize the complexity. The proposed multilevel inverter topology is also validated through the simulations in the MATLAB SIMULINK environment. The proposed inverter need for filters is illustrated according to different grid codes for integrating PV systems to the grid.

Suggested Citation

  • Md. Tariqul Islam & Hady H. Fayek & Eugen Rusu & Md. Fayzur Rahman, 2021. "A Novel Hexagonal-Shaped Multilevel Inverter with Reduced Switches for Grid-Integrated Photovoltaic System," Sustainability, MDPI, vol. 13(21), pages 1-15, October.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:21:p:12018-:d:668840
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    References listed on IDEAS

    as
    1. Hady H. Fayek & Panos Kotsampopoulos, 2021. "Central Tunicate Swarm NFOPID-Based Load Frequency Control of the Egyptian Power System Considering New Uncontrolled Wind and Photovoltaic Farms," Energies, MDPI, vol. 14(12), pages 1-19, June.
    2. Memon, Mudasir Ahmed & Mekhilef, Saad & Mubin, Marizan & Aamir, Muhammad, 2018. "Selective harmonic elimination in inverters using bio-inspired intelligent algorithms for renewable energy conversion applications: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 2235-2253.
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    Cited by:

    1. Sathyavani Bandela & Tara Kalyani Sandipamu & Hari Priya Vemuganti & Shriram S. Rangarajan & E. Randolph Collins & Tomonobu Senjyu, 2023. "An Efficacious Modulation Gambit Using Fewer Switches in a Multilevel Inverter," Sustainability, MDPI, vol. 15(4), pages 1-21, February.
    2. Luis Galván & Pablo J. Gómez & Eduardo Galván & Juan M. Carrasco, 2022. "Optimization-Based Capacitor Balancing Method with Customizable Switching Reduction for CHB Converters," Energies, MDPI, vol. 15(6), pages 1-19, March.
    3. Justin Ugwu & Kenneth C. Odo & Chibuike Peter Ohanu & Jorge García & Ramy Georgious, 2022. "Comprehensive Review of Renewable Energy Communication Modeling for Smart Systems," Energies, MDPI, vol. 16(1), pages 1-28, December.

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