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Investigating the Influence of PWM-Driven Cascaded H-Bridges Multilevel Inverter on Interior Permanent Magnet Synchronous Motor Power Losses

Author

Listed:
  • Claudio Nevoloso

    (Department of Engineering, University of Palermo, Viale delle Scienze, Parco d’Orleans, 90128 Palermo, Italy)

  • Gioacchino Scaglione

    (Department of Engineering, University of Palermo, Viale delle Scienze, Parco d’Orleans, 90128 Palermo, Italy)

  • Giuseppe Schettino

    (Department of Engineering, University of Palermo, Viale delle Scienze, Parco d’Orleans, 90128 Palermo, Italy)

  • Antonino Oscar Di Tommaso

    (Department of Engineering, University of Palermo, Viale delle Scienze, Parco d’Orleans, 90128 Palermo, Italy)

  • Fabio Viola

    (Department of Engineering, University of Palermo, Viale delle Scienze, Parco d’Orleans, 90128 Palermo, Italy)

  • Ciro Spataro

    (Department of Engineering, University of Palermo, Viale delle Scienze, Parco d’Orleans, 90128 Palermo, Italy)

  • Rosario Miceli

    (Department of Engineering, University of Palermo, Viale delle Scienze, Parco d’Orleans, 90128 Palermo, Italy)

Abstract

This paper presents an accurate analysis of the power losses of an interior permanent magnet synchronous motor fed by a cascaded H-bridge multilevel inverter. The main goal of this study is to investigate the impact of the cascaded h-bridge inverter, multicarrier PWM strategies, and inverter switching frequency on the synchronous motor power losses. With this aim in mind, a detailed frequency domain power analysis was carried out on motor power losses at different operating points in the frequency–torque plane. Motor power losses were further categorized into fundamental and harmonic power losses. This evaluation involved driving the power converter using six distinct multicarrier PWM strategies at four different switching frequencies. Additionally, a comparison was conducted with a conventional two-level PWM inverter to quantify the reduction in motor power losses. The experimental results show that the cascaded h-bridge inverter guarantees a notable increase in the motor efficiency, up to 7%, and losses in segregation at the fundamental frequency, if compared to the standard two-level PWM inverter, especially at low speed and with partial-load conditions. Such results mark out the cascaded H-bridge inverter as a valuable choice, also with regard to low-voltage drive applications.

Suggested Citation

  • Claudio Nevoloso & Gioacchino Scaglione & Giuseppe Schettino & Antonino Oscar Di Tommaso & Fabio Viola & Ciro Spataro & Rosario Miceli, 2025. "Investigating the Influence of PWM-Driven Cascaded H-Bridges Multilevel Inverter on Interior Permanent Magnet Synchronous Motor Power Losses," Energies, MDPI, vol. 18(15), pages 1-24, July.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:15:p:3911-:d:1707496
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    References listed on IDEAS

    as
    1. Youguang Guo & Yunfei Yu & Haiyan Lu & Gang Lei & Jianguo Zhu, 2024. "Enhancing Performance of Permanent Magnet Motor Drives through Equivalent Circuit Models Considering Core Loss," Energies, MDPI, vol. 17(8), pages 1-17, April.
    2. Alessandro Busacca & Antonino Oscar Di Tommaso & Rosario Miceli & Claudio Nevoloso & Giuseppe Schettino & Gioacchino Scaglione & Fabio Viola & Ilhami Colak, 2022. "Switching Frequency Effects on the Efficiency and Harmonic Distortion in a Three-Phase Five-Level CHBMI Prototype with Multicarrier PWM Schemes: Experimental Analysis," Energies, MDPI, vol. 15(2), pages 1-29, January.
    3. Joao L. Afonso & Mohamed Tanta & José Gabriel Oliveira Pinto & Luis F. C. Monteiro & Luis Machado & Tiago J. C. Sousa & Vitor Monteiro, 2021. "A Review on Power Electronics Technologies for Power Quality Improvement," Energies, MDPI, vol. 14(24), pages 1-71, December.
    4. 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.
    5. Massimo Caruso & Antonino Oscar Di Tommaso & Giuseppe Lisciandrello & Rosa Anna Mastromauro & Rosario Miceli & Claudio Nevoloso & Ciro Spataro & Marco Trapanese, 2020. "A General and Accurate Measurement Procedure for the Detection of Power Losses Variations in Permanent Magnet Synchronous Motor Drives," Energies, MDPI, vol. 13(21), pages 1-19, November.
    6. 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.
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