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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 Region

Author

Listed:
  • Roberto O. Ramírez

    (Electrical Engineering Deparment, University of Talca, Curicó 3340000, Chile
    These authors contributed equally to this work.)

  • Carlos R. Baier

    (Electrical Engineering Deparment, University of Talca, Curicó 3340000, Chile
    These authors contributed equally to this work.)

  • Felipe Villarroel

    (Department of Electrical Engineering, Universidad de Concepción, Concepción 4070386, Chile)

  • Eduardo Espinosa

    (Department of Electrical Engineering, Faculty of Engineering, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile
    Centro de Energía, Universidad Católica de la Santísima Concepción, Concepción 4090541, Chile)

  • Mauricio Arevalo

    (Energy Conversion Master Program, Faculty of Engineering, University of Talca, Curicó 3340000, Chile)

  • Jose R. Espinoza

    (Department of Electrical Engineering, Universidad de Concepción, Concepción 4070386, Chile)

Abstract

Cascaded H-bridge drives require using a significant-size capacitor on each cell to deal with the oscillatory power generated by the H-bridge inverter in the DC-link. This results in a bulky cell with reduced reliability due to the circulating second harmonic current through the DC-link capacitors. In this article, a control strategy based on a finite control set model predictive control and a proportional-resonant controller is proposed to compensate for the oscillatory power required by the H-bridge inverter through the cell’s input rectifier. With the proposed strategy, a DC-link second harmonic free operation is achieved, allowing for the possibility of reducing the capacitor size and, in consequence, the cell dimensions. The feasibility of the proposed control scheme is verified by experimental results in one cell of a cascade H-bridge inverter achieving an operation with a capacitance 141 times smaller than required by conventional control approaches for the same voltage ripple.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:14:p:3038-:d:1189702
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    References listed on IDEAS

    as
    1. Thiago Tricarico & João Adolpho Costa & Danilo Herrera & Eduardo Galván-Díez & Juan M. Carrasco & Mauricio Aredes, 2022. "Total Frequency Spread: A New Metric to Assess the Switching Frequency Spread of FCS-MPC," Energies, MDPI, vol. 15(14), pages 1-20, July.
    2. 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.
    3. Eduardo Zafra & Sergio Vazquez & Hipolito Guzman Miranda & Juan A. Sanchez & Abraham Marquez & Jose I. Leon & Leopoldo G. Franquelo, 2020. "Efficient FPSoC Prototyping of FCS-MPC for Three-Phase Voltage Source Inverters," Energies, MDPI, vol. 13(5), pages 1-16, March.
    4. Luis A. M. Barros & António P. Martins & José Gabriel Pinto, 2022. "A Comprehensive Review on Modular Multilevel Converters, Submodule Topologies, and Modulation Techniques," Energies, MDPI, vol. 15(3), pages 1-51, February.
    5. Mustafa Gokdag, 2022. "Modulated Predictive Control to Improve the Steady-State Performance of NSI-Based Electrification Systems," Energies, MDPI, vol. 15(6), pages 1-19, March.
    6. Roberto O. Ramírez & Carlos R. Baier & José Espinoza & Felipe Villarroel, 2020. "Finite Control Set MPC with Fixed Switching Frequency Applied to a Grid Connected Single-Phase Cascade H-Bridge Inverter," Energies, MDPI, vol. 13(20), pages 1-18, October.
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