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A New Approach to the PWM Modulation for the Multiphase Matrix Converters Supplying Loads with Open-End Winding

Author

Listed:
  • Pawel Szczepankowski

    (Department of Power Electronics and Electrical Machines, Faculty of Electrical and Control Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland)

  • Natalia Strzelecka

    (Department of Ship Automation, Faculty of Electrical Engineering, Gdynia Maritime University, 81-225 Gdynia, Poland)

  • Enrique Romero-Cadaval

    (Department of Electrical Electronic and Control Engineering, University of Extremadura, 06006 Badajoz, Spain)

Abstract

This article presents three variants of the Pulse Width Modulation (PWM) for the Double Square Multiphase type Conventional Matrix Converters (DSM-CMC) supplying loads with the open-end winding. The first variant of PWM offers the ability to obtain zero value of the common-mode voltage at the load’s terminals and applies only six switches within the modulation period. The second proposal archives for less Total Harmonic Distortion (THD) of the generated load voltage. The third variant of modulation concerns maximizing the voltage transfer ratio, minimizing the number of switching, and the common-mode voltage cancellation. The discussed modulations are based on the concept of sinusoidal voltage quadrature signals, which can be an effective alternative to the classic space-vector approach. In the proposed approach, the geometrical arrangement of basic vectors needed to synthesize output voltages is built from the less number of vectors, which is equal to the number of the matrix converter’s terminals. The PWM duty cycle computation is performed using only a second-order determinant of the voltages coordinate matrix without using trigonometric functions. A new approach to the PWM duty cycles computing and the load voltage synthesis by 5 × 5 and 12 × 12 topologies has been verified using the PSIM simulation software.

Suggested Citation

  • Pawel Szczepankowski & Natalia Strzelecka & Enrique Romero-Cadaval, 2021. "A New Approach to the PWM Modulation for the Multiphase Matrix Converters Supplying Loads with Open-End Winding," Energies, MDPI, vol. 14(2), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:2:p:466-:d:481737
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    References listed on IDEAS

    as
    1. Janina Rząsa & Elżbieta Sztajmec, 2020. "Elimination of Common Mode Voltage in the Three-To-Nine-Phase Matrix Converter," Energies, MDPI, vol. 13(3), pages 1-20, February.
    2. Tomasz Sieńko & Jerzy Szczepanik & Claudia Martis, 2020. "Reactive Power Transfer via Matrix Converter Controlled by the “One Periodical” Algorithm," Energies, MDPI, vol. 13(3), pages 1-14, February.
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