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

Paweł Szczepankowski; Natalia Strzelecka; Enrique Romero-Cadaval

doi:10.3390/en14020466

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

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 5x5 and 12x12 topologies has been verified using the PSIM simulation software.

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Category:: Articles
Type:: artykuły w czasopismach
Published in:: ENERGIES no. 14,
ISSN: 1996-1073
Language:: English
Publication year:: 2021
Bibliographic description:: Szczepankowski P., Strzelecka N., Romero-Cadaval E.: A New Approach to the PWM Modulation for the Multiphase Matrix Converters Supplying Loads with Open-End Winding.// ENERGIES -Vol. 14,iss. 2 (2021), s.466-
DOI:: Digital Object Identifier (open in new tab) 10.3390/en14020466
Verified by:: Gdańsk University of Technology