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Theoretical and Experimental Investigation of Switching Ripple in the DC-Link Voltage of Single-Phase H-Bridge PWM Inverters

Author

Listed:
  • Marija Vujacic

    (Department of Electrical, Electronic and Information Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

  • Manel Hammami

    (Department of Electrical, Electronic and Information Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

  • Milan Srndovic

    (Department of Electrical, Electronic and Information Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

  • Gabriele Grandi

    (Department of Electrical, Electronic and Information Engineering, University of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy)

Abstract

Direct current (DC)-link voltage ripple analysis is essential for determining harmonic noise and for DC-link capacitor design and selection in single-phase pulse-width modulation (PWM) inverters. This paper provides an extensive theoretical analysis of DC-link voltage ripple for full-bridge (H-bridge) inverters, with simulation and experimental verifications, considering a DC source impedance (non-ideal DC voltage source). The DC voltage ripple amplitude is theoretically estimated as a function of the output current, both amplitude and phase angle, and the modulation index. It consists of a switching frequency component and a double-fundamental frequency component (i.e., 100 Hz), thereby both components are considered in the analysis. In particular, the peak-to-peak distribution, maximum amplitude, and root mean square (RMS) values of the voltage switching ripple over the fundamental period are obtained. Based on the DC voltage requirements, simple and effective guidelines for designing DC-link capacitors are obtained.

Suggested Citation

  • Marija Vujacic & Manel Hammami & Milan Srndovic & Gabriele Grandi, 2017. "Theoretical and Experimental Investigation of Switching Ripple in the DC-Link Voltage of Single-Phase H-Bridge PWM Inverters," Energies, MDPI, vol. 10(8), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:8:p:1189-:d:107874
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    References listed on IDEAS

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    1. Gabriele Grandi & Jelena Loncarski, 2013. "Analysis of Peak-to-Peak Current Ripple Amplitude in Seven-Phase PWM Voltage Source Inverters," Energies, MDPI, vol. 6(9), pages 1-19, August.
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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. Shan Li & Lei Yang & Tao Wang, 2022. "Analysis of the DC-Link Voltage Ripple for the Three-Phase Voltage Source Converter under Nonlinear Output Current," Energies, MDPI, vol. 15(8), pages 1-15, April.
    4. Manel Hammami & Gabriele Grandi, 2017. "A Single-Phase Multilevel PV Generation System with an Improved Ripple Correlation Control MPPT Algorithm," Energies, MDPI, vol. 10(12), pages 1-19, December.
    5. Manel Hammami & Gabriele Rizzoli & Riccardo Mandrioli & Gabriele Grandi, 2018. "Capacitors Voltage Switching Ripple in Three-Phase Three-Level Neutral Point Clamped Inverters with Self-Balancing Carrier-Based Modulation," Energies, MDPI, vol. 11(12), pages 1-20, November.
    6. Marija Vujacic & Manel Hammami & Milan Srndovic & Gabriele Grandi, 2018. "Analysis of dc-Link Voltage Switching Ripple in Three-Phase PWM Inverters," Energies, MDPI, vol. 11(2), pages 1-14, February.

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