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Analysis of dc-Link Voltage Switching Ripple in Three-Phase PWM Inverters

Author

Listed:
  • Marija Vujacic

    (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)

  • Milan Srndovic

    (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

The three-phase voltage source inverter (VSI) is de facto standard in power conversion systems. To realize high power density systems, one of the items to be correctly addressed is the design and selection of the dc-link capacitor in relation to the voltage switching ripple. In this paper, effective formulas for designing the dc-link capacitor as a function of the switching voltage ripple amplitude are obtained, considering the operating conditions such as the modulation index and the output current amplitude. The calculations are obtained considering the requirements and restrictions referring to the high (switching)-frequency dc-link voltage ripple component. Analyses have been performed considering the dc source impedance (non-ideal dc voltage source at the switching frequency) and a balanced load. Analytical expressions are derived for the dc-link voltage switching ripple amplitude and its maximum value over the fundamental period. Different values of modulation index and output phase angle have been considered and different diagrams are presented. Analytical results were validated both by simulations and comprehensive experimental tests.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:2:p:471-:d:132938
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    References listed on IDEAS

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    1. 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.
    2. 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. Weixuan Zhang & Yu Fang & Rong Ye & Zhengqun Wang, 2020. "Analysis and Design of a Double Fuzzy PI Controller of a Voltage Outer Loop in a Reversible Three-Phase PWM Converter," Energies, MDPI, vol. 13(15), pages 1-19, July.
    2. 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.
    3. 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.
    4. 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.
    5. Osama Majeed Butt & Tallal Majeed Butt & Muhammad Husnain Ashfaq & Muhammad Talha & Siti Rohani Sheikh Raihan & Muhammad Majid Hussain, 2022. "Simulative Study to Reduce DC-Link Capacitor of Drive Train for Electric Vehicles," Energies, MDPI, vol. 15(12), pages 1-31, June.
    6. Juan Carlos Iglesias-Rojas & Erick Velázquez-Lozada & Roberto Baca-Arroyo, 2022. "Online Failure Diagnostic in Full-Bridge Module for Optimum Setup of an IGBT-Based Multilevel Inverter," Energies, MDPI, vol. 15(14), pages 1-14, July.

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