Matrix Converter

2022 ◽  
pp. 219-244
Author(s):  
Megha Vyas ◽  
Shripati Vyas
Keyword(s):  
Matrix Converter ◽  
General Description ◽  
Storage Element ◽  
Ac Drive ◽  
Variable Voltage ◽  
Three Phase ◽  
The Matrix ◽  
Converter Topology ◽  
Basic Features ◽  
Ac Converters

The matrix converter (MC) has recently attracted significant attention among researchers because of its applications in wind energy conversion, military power supplies, induction motor drives, etc. Recently, different MC topologies have been proposed and developed which have their own advantages and disadvantages. Matrix converter can be classified as a direct and indirect structure. This chapter aims to give a general description of the basic features of a three phase to three phase matrix converters in terms of performance and of technological issues. Matrix converter is a direct AC-AC converter topology that is able to directly convert energy from an AC source to an AC load without the need of a bulky and limited lifetime energy storage element. AC-AC topologies receive extensive research attention for being an alternative to replace traditional AC-DC-AC converters in the variable voltage and variable frequency AC drive applications.

scholarly journals Modelling and analysis of a NTVV-SVM based three-level twin-step matrix converter

2018 ◽  
Vol 7 (4) ◽  
pp. 2672
Author(s):  
Shamsher Ansari ◽  
Aseem Chandel ◽  
SMIEEE . ◽  
Zulfiqar Ali Sheikh
Keyword(s):  
High Power ◽  
Theoretical Study ◽  
Matrix Converter ◽  
Matrix Converters ◽  
Output Performance ◽  
The Matrix ◽  
Power Switches ◽  
Converter Topology ◽  
Vector Modulation ◽  
Ac Converters

Recently the tremendous advancement has been seen in the field of matrix converter topology. For high power drive applications, industries often need high power AC-AC converters like three level matrix converter because it is having the ability to generate a set of balanced sine waves for inputs as well as outputs. The three level matrix converters possess better output performance with reduced harmonic contents compared to all two-stage indirect matrix converters. In this matrix converter topology, the idea of neutral-point clamped-VSI is employed to the inversion step of the matrix converter circuitry. To control the power switches the gate signals are produced using NTVV based space vector modulation. To justify the theoretical study a complete model of a three-level twin-step matrix converter has been designed in Matlab/Simulink and its performances are analysed.  

scholarly journals Simulation of Matrix Converter by using MATLAB-Simulink

2021 ◽  
Author(s):  
Abhinav Vinod Deshpande
Keyword(s):  
Pulse Width Modulation ◽  
Matrix Converter ◽  
Matlab Simulink ◽  
Matrix Converters ◽  
Variable Voltage ◽  
Power Electronic Circuits ◽  
The Matrix ◽  
Power Frequency ◽  
Frequency Changes ◽  
Intermediate Circuit

The matrix converter converts the input line voltage into a variable voltage with an unrestricted output frequency without using an intermediate circuit, dc link circuit. A pure sine in and pure sine out is the unique feature of the matrix converter. This research paper also analyzes the basic operating principle and the simulation modeling of the direct matrix converter, which is controlled by the Space Vector Pulse Width Modulation technique by using the software which is known as MATLAB/Simulink. The most desirable features in the power frequency changes can be fulfilled by using the matrix converters, and this is the reason for the tremendous interest in the topology. Since the power electronic circuits which is known as the motor drives are used to operate the AC motors at the frequencies other than that of the supply.

scholarly journals Modulation Strategy for Multi-Phase Matrix Converter with Common Mode Voltage Elimination and Adjustment of the Input Displacement Angle

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 675
Author(s):  
Janina Rząsa
Keyword(s):  
Input Power ◽  
Matrix Converter ◽  
Electromagnetic Transients ◽  
Simultaneous Increase ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Three Phase ◽  
The Matrix ◽  
Displacement Angle ◽  
Multi Phase

In the last several years, thanks to the development and continuous improvement of semiconductor switching elements, and the simultaneous increase in interest in multi-phase drives, the investigation into constructing multi-phase converters has been growing. The matrix converter (MC) is considered to be one of the contenders for use in the multi-phase drive. In the context of using MC in the drive, it is expected to eliminate the common mode voltage (CMV). Another important problem is the ability to correct the input displacement angle to ensure the operation of the MC with unity input power factor. The purpose of the article is to present an MC modulation strategy that implements both CMV elimination and input displacement angle adjustment. Analytical and simulation analyses of the strategy, in application to three-to-multi-phase MC is presented. The suggested modulation strategy in applying to three-to-multi-phase MC is implemented in ATP-EMTP (Alternative Transients Program-ElectroMagnetic Transients Program) software. Simulation results are provided for a three-to-three-phase three-to-six-phase and three-to-nine-phase MC. The proposed modulation strategy is validated using an experimental approach.

The Broken Symmetry of Output Currents in a Matrix Converter and Its Recovery Control

2020 ◽  
pp. 2150072
Author(s):  
Manuel Sánchez ◽  
Takafumi Okuda ◽  
Takashi Hikihara
Keyword(s):  
Matrix Converter ◽  
Delayed Feedback Control ◽  
Broken Symmetries ◽  
Electrical Systems ◽  
Input And Output ◽  
Three Phase ◽  
The Matrix ◽  
Dc Component ◽  
Nonlinear Behaviors ◽  
Time Delayed Feedback

Symmetry is not only used to simplify the analysis of three-phase electrical systems, but it is also used to define its voltages, currents and loads. When the loads are symmetrical, the currents of a three-phase AC system are expected to be symmetrical as well. Given the proper conditions, in converters such as the matrix converter (MC), the output voltages and currents are expected to be sinusoidal with periodic symmetry. However, in some cases this symmetry is broken so that, there appears nonlinear behaviors such as quasiperiodicity and so on. Based on simulations and experiments, this paper focuses on an analysis of a quasiperiodic behavior and the presence of a DC component in the output currents of a Venturini modulated MC. The presence of such behaviors in the output currents indicates that the symmetry in a period is broken. The broken symmetries appear when the input and output frequencies are mismatched. In addition, this paper shows the possibility to recover the symmetry of the output currents of the MC. The method for symmetry recovery is based on a time-delayed feedback control. The simulation and experimental results indicate the possibility of attenuating the quasiperiodic behavior and DC component.

scholarly journals Equalization Technique for Balancing the Modulation Ratio Characteristics of the Single-Phase-to-Three-Phase Matrix Converter

2016 ◽  
Vol 2016 ◽  
pp. 1-10
Author(s):  
Vengadeshwaran Velu ◽  
Norman Mariun ◽  
Mohd Amran Mohd Radzi ◽  
Nashiren Farzilah Mailah
Keyword(s):  
Rural Areas ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Low Voltage ◽  
Matrix Converter ◽  
Phase System ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Three Phase ◽  
Ac Converters

Three-phase system has numerous advantages over the single-phase system in terms of instantaneous power, stability, and cost. Three-phase systems are not available in every location particularly in remote rural areas, hill stations, low voltage distribution homes, and so forth. Having a system that is capable of converting directly the readily available single-phase system to three phases will have greater usability in various applications. The routine techniques adopted in the direct ac-ac single-phase-to-three-phase converters do not yield the best desired outputs because of their complexity in the segregation process and bidirectional nature of the input signal. Other initiatives use ac-dc-ac converters which are huge and costly due to dc link energy storage devices. Further, none of these systems provide a convincing result in producing the standard three-phase output voltages that are 120° away from each other. This paper proposes an effective direct ac-ac single-phase-to-three-phase conversion technique based on space vector pulse width modulation based matrix converter system that produces a convincing three-phase output signals from a single-phase source with balanced modulation index characteristics. The details of the scientific programming adopted on the proposed technique were presented.

scholarly journals Sequential Model Predictive Control of Three-Phase Direct Matrix Converter

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 214 ◽  
Author(s):  
Jianwei Zhang ◽  
Margarita Norambuena ◽  
Li Li ◽  
David Dorrell ◽  
Jose Rodriguez
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Control Strategy ◽  
Weighting Factor ◽  
Matrix Converter ◽  
Cost Functions ◽  
Computational Burden ◽  
Three Phase ◽  
The Matrix ◽  
Factor Design

The matrix converter (MC) is a promising converter that performs the direct AC-to-AC conversion. Model predictive control (MPC) is a simple and powerful tool for power electronic converters, including the MC. However, weighting factor design and heavy computational burden impose significant challenges for this control strategy. This paper investigates the generalized sequential MPC (SMPC) for a three-phase direct MC. In this control strategy, each control objective has an individual cost function and these cost functions are evaluated sequentially based on priority. The complex weighting factor design process is not required. Compared with the standard MPC, the computation burden is reduced because only the pre-selected switch states are evaluated in the second and subsequent sequential cost functions. In addition, the prediction model computation for the following cost functions is also reduced. Specifying the priority for control objectives can be achieved. A comparative study with traditional MPC is carried out both in simulation and an experiment. Comparable control performance to the traditional MPC is achieved. This controller is suitable for the MC because of the reduced computational burden. Simulation and experimental results verify the effectiveness of the proposed strategy.

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