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Model Predictive Control of a Modular 7-Level Converter Based on SiC-MOSFET Devices—An Experimental Assessment

Author

Listed:
  • Raúl Gregor

    (Laboratory of Power and Control Systems (LSPyC), Facultad de Ingeniería, Universidad Nacional de Asunción, Luque 2060, Paraguay)

  • Julio Pacher

    (Laboratory of Power and Control Systems (LSPyC), Facultad de Ingeniería, Universidad Nacional de Asunción, Luque 2060, Paraguay)

  • Alfredo Renault

    (Laboratory of Power and Control Systems (LSPyC), Facultad de Ingeniería, Universidad Nacional de Asunción, Luque 2060, Paraguay)

  • Leonardo Comparatore

    (Laboratory of Power and Control Systems (LSPyC), Facultad de Ingeniería, Universidad Nacional de Asunción, Luque 2060, Paraguay)

  • Jorge Rodas

    (Laboratory of Power and Control Systems (LSPyC), Facultad de Ingeniería, Universidad Nacional de Asunción, Luque 2060, Paraguay)

Abstract

Power converter technology has expanded into a wide range of low, medium, and high power applications due to the ability to manage electrical energy efficiently. In this regard, the modular multilevel converter has become a viable alternative to ensure an optimal harmonic profile with a sinusoidal voltage at the load side. Model predictive control (MPC) is a state-of-the-art technique that has been successfully used to control power electronic converters due to its ability to handle multiple control objectives. Nevertheless, in the classical MPC approach, the optimal vector is applied during the whole sampling period producing an output voltage. This solution causes an unbalanced switching frequency of the power semiconductor, which then causes unbalanced stress on the power devices. Modulation strategies have been combined with MPC to overcome these shortcomings. This paper introduces the experimental assessment of a 7-level converter combining a simple phase shift multicarrier pulse-width modulation approach with the MPC technique. A custom test-bed based on SiC-MOSFETs switches is used to validate the proposal.

Suggested Citation

  • Raúl Gregor & Julio Pacher & Alfredo Renault & Leonardo Comparatore & Jorge Rodas, 2022. "Model Predictive Control of a Modular 7-Level Converter Based on SiC-MOSFET Devices—An Experimental Assessment," Energies, MDPI, vol. 15(14), pages 1-11, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5242-:d:866690
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    References listed on IDEAS

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    1. Raul Gregor & Julio Pacher & Alejandro Espinoza & Alfredo Renault & Leonardo Comparatore & Magno Ayala, 2021. "Harmonics Compensation by Using a Multi-Modular H-Bridge-Based Multilevel Converter," Energies, MDPI, vol. 14(15), pages 1-16, August.
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    Cited by:

    1. Roberto O. Ramírez & Carlos R. Baier & Felipe Villarroel & Eduardo Espinosa & Mauricio Arevalo & Jose R. Espinoza, 2023. "Reduction of DC Capacitor Size in Three-Phase Input/Single-Phase Output Power Cells of Multi-Cell Converters through Resonant and Predictive Control: A Characterization of Its Impact on the Operating ," Mathematics, MDPI, vol. 11(14), pages 1-19, July.
    2. Leonardo Comparatore & Magno Ayala & Yassine Kali & Jorge Rodas & Julio Pacher & Alfredo Renault & Raúl Gregor, 2023. "Discrete-Time Sliding Mode Current Control for a Seven-Level Cascade H-Bridge Converter," Energies, MDPI, vol. 16(5), pages 1-19, March.

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