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THDv Reduction in Multilevel Three-Phase Inverters Using the SHE-PWM Technique with a Hybrid Optimization Algorithm

Author

Listed:
  • Miguel Ayala

    (Electrical Engineering Department, South Campus, Universidad Politécnica Salesiana, Av. Rumichaca and Av. M. Valverde, Quito 170702, Ecuador
    These authors contributed equally to this work.)

  • Luis Tipán

    (Electrical Engineering Department, South Campus, Universidad Politécnica Salesiana, Av. Rumichaca and Av. M. Valverde, Quito 170702, Ecuador
    These authors contributed equally to this work.)

  • Manuel Jaramillo

    (Electrical Engineering Department, South Campus, Universidad Politécnica Salesiana, Av. Rumichaca and Av. M. Valverde, Quito 170702, Ecuador)

  • Cristian Cuji

    (Electrical Engineering Department, South Campus, Universidad Politécnica Salesiana, Av. Rumichaca and Av. M. Valverde, Quito 170702, Ecuador)

Abstract

The following article aims to implement a hybrid modulation methodology based on the Selective Harmonic Elimination Pulse Width Modulation (SHE-PWM) technique to work with the fundamental frequency of the system and find the optimal firing angles using the PSO optimization algorithm, capable of reducing the voltage THDv present in the output signals of three-phase multilevel inverters. To develop this approach, three case studies are proposed, developed in MATLAB/Simulink software, which feature three-phase inverters with five, seven, and nine levels, respectively, of the CHB topology. The impact of adequate modulation is assessed, resulting in a voltage output signal with reduced distortion. The national regulation ARCERNNR 002/20 will be used as a reference point to evaluate the results before and after implementing the methodology. It was verified that the developed methodology can effectively eliminate the selected harmonics, especially those of lower order (3rd, 5th, 7th, 9th, 11th, 13th, and 15th), achieving an improvement of up to 17.93% in the voltage THDv concerning the standard S-PWM modulation present in the CHB-MLI.

Suggested Citation

  • Miguel Ayala & Luis Tipán & Manuel Jaramillo & Cristian Cuji, 2025. "THDv Reduction in Multilevel Three-Phase Inverters Using the SHE-PWM Technique with a Hybrid Optimization Algorithm," Energies, MDPI, vol. 18(16), pages 1-47, August.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:16:p:4292-:d:1722939
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    References listed on IDEAS

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    1. 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.
    2. Subhashree Choudhury & Mohit Bajaj & Taraprasanna Dash & Salah Kamel & Francisco Jurado, 2021. "Multilevel Inverter: A Survey on Classical and Advanced Topologies, Control Schemes, Applications to Power System and Future Prospects," Energies, MDPI, vol. 14(18), pages 1-48, September.
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