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A Modular Multilevel Converter with an Advanced PWM Control Technique for Grid-Tied Photovoltaic System

Author

Listed:
  • Safa Haq

    (Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh)

  • Shuvra Prokash Biswas

    (Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh)

  • Md. Kamal Hosain

    (Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh)

  • Md. Ashib Rahman

    (School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW 2522, Australia)

  • Md. Rabiul Islam

    (School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW 2522, Australia)

  • Sumaya Jahan

    (Department of Electronics & Telecommunication Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh)

Abstract

Due to global warming and shortage of fossil fuels, the grid-connected solar photovoltaic (PV) system has gained significant popularity all over the world. The modular multilevel cascaded (MMC) inverter is the natural choice for step-up transformer and line filter less direct medium voltage grid integration of solar PV systems. However, power quality and loss are the important issues while connecting the PV system to the medium voltage grid through MMC inverter. Modulation technique is the key to maintain output power quality, e.g., total harmonic distortion (THD) and to ensure low switching and conduction losses. In this paper, an advanced modulation technique named “triangle saturated common mode pulse width modulation (TSCMPWM)” control is proposed for a 3-phase 5-level MMC inverter-based grid-tied PV system. Compared to traditional modulation techniques, the proposed TSCMPWM control offers the lowest voltage THD as well as lower inverter power losses. Performance of the proposed modulation technique is evaluated in MATLAB/Simulink environment and tested with a reduced scale prototype test platform. Both simulation and experimental results show the effectiveness of the proposed modulation technique.

Suggested Citation

  • Safa Haq & Shuvra Prokash Biswas & Md. Kamal Hosain & Md. Ashib Rahman & Md. Rabiul Islam & Sumaya Jahan, 2021. "A Modular Multilevel Converter with an Advanced PWM Control Technique for Grid-Tied Photovoltaic System," Energies, MDPI, vol. 14(2), pages 1-19, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:2:p:331-:d:477333
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    Citations

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    Cited by:

    1. Oleg Rekutov & Michail Surkov & Danil Lyapunov & Alexey Muravlev & Alexandra Pravikova & Anton Yudintsev & Victor Rulevskiy & Oleg Bubnov & Victor Pchelnikov, 2022. "Simulators for Designing Energy-Efficient Power Supplies Based on Solar Panels," Energies, MDPI, vol. 15(7), pages 1-22, March.
    2. Mohua Biswas & Shuvra Prokash Biswas & Md. Rabiul Islam & Md. Ashib Rahman & Kashem M. Muttaqi & S. M. Muyeen, 2022. "A New Transformer-Less Single-Phase Photovoltaic Inverter to Improve the Performance of Grid-Connected Solar Photovoltaic Systems," Energies, MDPI, vol. 15(22), pages 1-17, November.
    3. Ali Abedaljabar Al-Samawi & Hafedh Trabelsi, 2022. "New Nine-Level Cascade Multilevel Inverter with a Minimum Number of Switches for PV Systems," Energies, MDPI, vol. 15(16), pages 1-25, August.

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