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Stochastic Pulse-Width Modulation and Modification of Direct Torque Control Based on a Three-Level Neutral-Point Clamped Inverter

Author

Listed:
  • Vasilev Bogdan Yurievich

    (Department of Electricity and Electromechanics, Saint Petersburg Mining University, 199106 Saint Petersburg, Russia)

  • Nguyen The Hien

    (Department of Electricity and Electromechanics, Saint Petersburg Mining University, 199106 Saint Petersburg, Russia)

Abstract

The three-level neutral-point clamped inverter represents a significant advancement in direct torque-control systems for asynchronous motors. A significant achievement of this study lies in the comprehensive analysis of a random frequency-modulation algorithm, which demonstrates its efficacy in substantially reducing the amplitude of harmonic oscillations and minimizing switching losses. This simplifies filter design and minimizes thermal dissipation in power transistors, thereby enhancing the overall reliability and efficiency of the system. Additionally, the implementation of a six-position torque regulator with a fixed sensitivity zone, applied in direct torque control based on the three-level inverter, improves the stability of the stator flux linkage and reduces the switching frequency of transistors. Numerical simulations conducted in the Matlab/Simulink environment indicate that the proposed algorithm reduces switching losses by 15% during transient states and by 2% during steady-state operation while increasing the system’s efficiency by 2% compared to conventional methods. These findings highlight the potential of the proposed solutions for application in energy-efficient drive systems.

Suggested Citation

  • Vasilev Bogdan Yurievich & Nguyen The Hien, 2024. "Stochastic Pulse-Width Modulation and Modification of Direct Torque Control Based on a Three-Level Neutral-Point Clamped Inverter," Energies, MDPI, vol. 17(23), pages 1-24, November.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:23:p:6017-:d:1533104
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    References listed on IDEAS

    as
    1. Aleksandr S. Maklakov & Ivan N. Erdakov, 2023. "Study of Behavior of Voltage and Current Spectra of Three-Level Neutral Point Clamped Converter at Selected Harmonic Elimination Programmed Pulse Pattern Pulse-Width Modulation," Energies, MDPI, vol. 16(13), pages 1-16, July.
    2. Yuriy Zhukovskiy & Aleksandra Buldysko & Ilia Revin, 2023. "Induction Motor Bearing Fault Diagnosis Based on Singular Value Decomposition of the Stator Current," Energies, MDPI, vol. 16(8), pages 1-23, April.
    3. Hani Albalawi & Sherif A. Zaid & Mohmed E. El-Shimy & Ahmed M. Kassem, 2023. "Ant Colony Optimized Controller for Fast Direct Torque Control of Induction Motor," Sustainability, MDPI, vol. 15(4), pages 1-17, February.
    Full references (including those not matched with items on IDEAS)

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