Abstract

Matrix converters (MCs) allow the implementation of single-stage AC/AC power conversion systems (PCS) with inherent bidirectional power flow capability. By avoiding the typical DC-link capacitor, MCs have the potential to achieve higher power density with a more reliable operation and less maintenance when compared with conventional two-stage AC/DC/AC PCS. For these reasons, matrix converters have been receiving significant attention from the academic sector but have not yet been implemented on a large industrial scale. This article reviews the Direct Matrix Converter (DMC) and the Indirect Matrix Converter (IMC) along with the respective actual and most important modulation methods. Simulation results are provided to validate the theoretical analysis and to get a deep insight about the implementation of space vector modulation (SVM) and respective switching pattern generator.

Highlights

  • Matrix converters (MCs) are one of the most attractive families of converters in the power electronics field [1]

  • As concluded in [11,12,13], the MC can achieve higher power densities when compared with equivalent two-stage power conversion solutions

  • Matrix converters allow the implementation of single-stage power conversion systems with inherent bidirectional power flow capability

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Summary

Introduction

Matrix converters (MCs) are one of the most attractive families of converters in the power electronics field [1]. The matrix converter is a set of controlled bidirectional power switches that connects a voltage source directly to a load without using any DC-link or other energy storage element [2], and it is called the “all-silicon” solution The development of this converter started in 1980 with the research of Venturini and Alesina [3,4]. High-power dense circuit, frequency decoupling between AC input and output voltage, input and output currents with sinusoidal waveform, full regenerative operation, and adjustable input power factor These characteristics are the reason for the present tremendous interest in matrix converters, as they allow obtaining a compact solution for a four-quadrant frequency converter [8,9,10]. Recommendations pertaining to the technological implementation are highlighted in this article

Direct Matrix Converter
Mathematical Model
Possible Switching States
Review of Modulation Techniques for DMC
Modulation Methods for Direct Matrix Converters
Space Vector Modulation for DMC
Switching Space Vectors
Vector Synthesis
Switching Pattern
Indirect Matrix Converter
Review of Modulation Techniques for IMC
Space Vector Modulation for IMC
Space Vector Modulation of Source Bridge
Space Vector Modulation of Load Bridge
Combination of Source and Load Bridges
Simulation
Simulation of the SVM for DMC
Simulation of the SVM for IMC
Conclusions
Full Text
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