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Enhanced Trapezoidal Modulation in MMC: Comparative Analysis with Traditional Modulation Methods

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  • Saqib Hussain, Ahtsham Ullah, Jamshed Ansari

    (Department of Electrical Engineering, Sukkur IBA University,Sukkur, Pakistan)

Abstract

HVDC transmission and renewable energy systems extensively use Modular Multilevel Converters (MMC) because they provide outstanding scalability and modular architectural features. The performance quality of MMCs depends predominantly on which modulation technique engineers implement. This work studies Nearest Level Modulation (NLM) and conventional Trapezoidal Modulation alongside an enhanced Trapezoidal Modulation method to identify the top choice for high-voltage power implementations. The main goal of this research is to optimize modulation techniques for improving MMC harmonic performance and switching efficiency. Each modulation strategy is simulated through MATLAB/Simulink-based testing under identical operating situations. Product testing indicates NLM shows lower switching losses as well as superior power distribution efficiency but the updated Trapezoidal Modulation design combines reduced THD performance with simple implementation methods. The method's innovative aspect depends on the modified trapezoidal waveform synthesis from a fundamental-frequency triangular signal enabling simplified implementation as well as lower THD and avoiding the need for high switching frequencies used in conventional approaches. The research delivers critical knowledge about MMC modulation selection which systems designers and manufacturers can use to optimize converter operation based on specific applications

Suggested Citation

  • Saqib Hussain, Ahtsham Ullah, Jamshed Ansari, 2025. "Enhanced Trapezoidal Modulation in MMC: Comparative Analysis with Traditional Modulation Methods," International Journal of Innovations in Science & Technology, 50sea, vol. 7(7), pages 232-243, May.
    • Handle: RePEc:abq:ijist1:v:7:y:2025:i:7:p:232-243
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    References listed on IDEAS

    as
    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.
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