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A Comprehensive AC Current Ripple Analysis and Performance Enhancement via Discontinuous PWM in Three-Phase Four-Leg Grid-Connected Inverters

Author

Listed:
  • Riccardo Mandrioli

    (Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy)

  • Aleksandr Viatkin

    (Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy)

  • Manel Hammami

    (Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy)

  • Mattia Ricco

    (Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy)

  • Gabriele Grandi

    (Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40136 Bologna, Italy)

Abstract

A complete analysis of the ac output current ripple in four-leg voltage source inverters considering multiple modulation schemes is provided. In detail, current ripple envelopes and peak-to-peak profiles have been determined in the whole fundamental period and a comprehensive method providing the current ripple rms has been achieved, all of them as a function of the modulation index. These characteristics have been determined for both phase and neutral currents, considering the most popular common-mode injection schemes. Particular attention has been paid to the performance of discontinuous pulse width modulation (DPWM) methods, including DPWMMAX and DPWMMIN, and their four most popular combinations DPWM0, DPWM1, DPWM2, and DPWM3. Furthermore, a comparison with a few continuous techniques (sinusoidal, centered pulse width modulations, and third harmonic injection) has been provided as well. Moreover, the average switching frequency and switching losses are analyzed, determining which PWM technique ensures minimum output current ripple within the linear modulation range at different assumptions. Numerical simulations and laboratory tests have been conducted to extensively verify all the analytical claims for all the considered PWM injections.

Suggested Citation

  • Riccardo Mandrioli & Aleksandr Viatkin & Manel Hammami & Mattia Ricco & Gabriele Grandi, 2020. "A Comprehensive AC Current Ripple Analysis and Performance Enhancement via Discontinuous PWM in Three-Phase Four-Leg Grid-Connected Inverters," Energies, MDPI, vol. 13(17), pages 1-32, August.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:17:p:4352-:d:402959
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    References listed on IDEAS

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    1. Gabriele Grandi & Jelena Loncarski & Milan Srndovic, 2016. "Analysis and Minimization of Output Current Ripple for Discontinuous Pulse-Width Modulation Techniques in Three-Phase Inverters," Energies, MDPI, vol. 9(5), pages 1-23, May.
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    Cited by:

    1. Manel Hammami & Riccardo Mandrioli & Aleksandr Viatkin & Mattia Ricco & Gabriele Grandi, 2020. "Analysis of Input Voltage Switching Ripple in Three-Phase Four-Wire Split Capacitor PWM Inverters," Energies, MDPI, vol. 13(19), pages 1-21, September.
    2. Riccardo Mandrioli & Aleksandr Viatkin & Manel Hammami & Mattia Ricco & Gabriele Grandi, 2021. "Prediction of DC-Link Voltage Switching Ripple in Three-Phase Four-Leg PWM Inverters," Energies, MDPI, vol. 14(5), pages 1-26, March.
    3. Riccardo Mandrioli & Francesco Lo Franco & Mattia Ricco & Gabriele Grandi, 2023. "A Generalized Approach for Determining the Current Ripple RMS in Four-Leg Inverters with the Neutral Inductor," Energies, MDPI, vol. 16(4), pages 1-19, February.
    4. Andrey Dar’enkov & Andrey Kurkin & Anton Sluzov & Ivan Berdnikov & Anton Khramov & Andrey Shalukho, 2023. "Research into a Method of Forming Neutral Point Voltage in a Three-Phase Four-Wire Voltage Inverter," Energies, MDPI, vol. 16(15), pages 1-19, August.
    5. Ali Chebabhi & Ala Addin Mohammed Al-dwa & Said Barkat & Fouad Zebiri, 2023. "Backstepping control of a grid-connected four-leg PWM rectifier under both balanced and unbalanced grid conditions," International Journal of System Assurance Engineering and Management, Springer;The Society for Reliability, Engineering Quality and Operations Management (SREQOM),India, and Division of Operation and Maintenance, Lulea University of Technology, Sweden, vol. 14(1), pages 1-18, March.
    6. Aleksandr Viatkin & Riccardo Mandrioli & Manel Hammami & Mattia Ricco & Gabriele Grandi, 2021. "AC Current Ripple in Three-Phase Four-Leg PWM Converters with Neutral Line Inductor," Energies, MDPI, vol. 14(5), pages 1-31, March.

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    1. Manel Hammami & Riccardo Mandrioli & Aleksandr Viatkin & Mattia Ricco & Gabriele Grandi, 2020. "Analysis of Input Voltage Switching Ripple in Three-Phase Four-Wire Split Capacitor PWM Inverters," Energies, MDPI, vol. 13(19), pages 1-21, September.

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