scholarly journals Modulation Methods for Direct and Indirect Matrix Converters: A Review

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 812
Author(s):  
Diogo Varajão ◽  
Rui Esteves Araújo
Keyword(s):  
Power Flow ◽  
Matrix Converter ◽  
Matrix Converters ◽  
Ac Power ◽  
Higher Power ◽  
Vector Modulation ◽  
Modulation Methods ◽  
Bidirectional Power Flow ◽  
Significant Attention ◽  
Academic Sector

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.

Investigation and Analysis of Space Vector Modulation with Matrix Converter Determined Based on Fuzzy C-Means Tuned Modulation Indexs

2016 ◽  
Vol 6 (5) ◽  
pp. 1939 ◽  
Author(s):  
Ch. Amarendra ◽  
K. Harinadh Reddy
Keyword(s):  
Power Flow ◽  
Power Converter ◽  
Input Power ◽  
Matrix Converter ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Fuzzy C Means ◽  
Sinusoidal Input ◽  
Vector Modulation ◽  
Bidirectional Power Flow

<p>Matrix converter performs energy conversion by directly connecting input phases with output phases through bidirectional switches. Conventional power converters make use of bulky reactive elements which are subjected to ageing, reduce the system reliability. The matrix converter (MC) stands as an alternative to conventional power converter. Furthermore MC’s provide bidirectional power flow nearly sinusoidal input and sinusoidal output waveform and controllable input power factor. In this work, three modulation methods have been simulated using MATLAB and compared on the basis of input current harmonics, output voltage harmonics and number of switching per cycle.  The three techniques simulated are, Optimal Venturini method, Direct Space Vector Modulation (DSVM) and Indirect Space Vector Modulation (ISVM) on Conventional Matrix Converter (CMC) and obtained form Fuzzy c-Means (FCM).  DSVM with FCM is proposed for obtainting best results compared to other three techniques.</p>

scholarly journals Switching Ripple Harmonics Attenuation in DFIG and Matrix Converter-Based WECS

Electronics ◽  
2021 ◽  
Vol 10 (21) ◽  
pp. 2589
Author(s):  
Gytis Svinkunas ◽  
Gytis Petrauskas
Keyword(s):  
Energy Flow ◽  
Power Flow ◽  
Harmonic Distortion ◽  
Matrix Converter ◽  
Power Sources ◽  
Matrix Converters ◽  
The Matrix ◽  
Utility Grid ◽  
Proper Filter ◽  
Bidirectional Power Flow

The analysis presented in this paper is focused on the harmonics distortion damping in the case of bidirectional power-flow of the electronics device—matrix converter as an interface between two power sources. Bidirectional energy flow takes place in the matrix converter that is used in renewables, hybrid transformers, microgrids, etc. It is observed that the matrix converter generates sinusoidal voltage with some amount of harmonic distortion and worsens in the quality of power in the utility grid. Taking into account the bi-directional energy flow and the matrix converter operation principle, four key requirements for the filters are formulated. Six theoretically possible filter topologies are investigated for compliance with these requirements. Two of the filter topologies are recognized as complying with these requirements and applicable for the switching ripple harmonics damping in the utility grid connected matrix converter in the case of bidirectional power flow. The suitability of these topologies was verified by MATLAB/Simulink simulation. Using the proper filter topology will significantly reduce the size, weight and cost of the components of the filter, as well as the utility grid’s pollution by switching ripple harmonics. It is appropriate to apply such filters to matrix converters that operate in wind turbines installed in doubly fed induction generators. These filters should also be used in hybrid transformers and other high-power devices with matrix converters.

scholarly journals Investigation and Analysis of Space Vector Modulation with Matrix Converter Determined Based on Fuzzy C-Means Tuned Modulation Indexs

2016 ◽  
Vol 6 (5) ◽  
pp. 1939
Author(s):  
Ch. Amarendra ◽  
K. Harinadh Reddy
Keyword(s):  
Power Flow ◽  
Power Converter ◽  
Input Power ◽  
Matrix Converter ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Fuzzy C Means ◽  
Sinusoidal Input ◽  
Vector Modulation ◽  
Bidirectional Power Flow

<p>Matrix converter performs energy conversion by directly connecting input phases with output phases through bidirectional switches. Conventional power converters make use of bulky reactive elements which are subjected to ageing, reduce the system reliability. The matrix converter (MC) stands as an alternative to conventional power converter. Furthermore MC’s provide bidirectional power flow nearly sinusoidal input and sinusoidal output waveform and controllable input power factor. In this work, three modulation methods have been simulated using MATLAB and compared on the basis of input current harmonics, output voltage harmonics and number of switching per cycle.  The three techniques simulated are, Optimal Venturini method, Direct Space Vector Modulation (DSVM) and Indirect Space Vector Modulation (ISVM) on Conventional Matrix Converter (CMC) and obtained form Fuzzy c-Means (FCM).  DSVM with FCM is proposed for obtainting best results compared to other three techniques.</p>

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 Performance Analysis of Very Sparse Matrix Converter using Indirect Space Vector Modulation

2019 ◽  
Vol 9 (1) ◽  
pp. 4756-4762
Keyword(s):  
Semiconductor Device ◽  
Sparse Matrix ◽  
Control Strategies ◽  
Input Power ◽  
Matrix Converter ◽  
Modulation Scheme ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Matrix Converters ◽  
Vector Modulation

In this p aper, Matrix Converter is which converts the AC to AC in a single stage. The merits of the matrix converter is its able to deliver variable output voltage with unrestricted input and output frequency, the lack of electrolytic capacitors, and the potential to raise the power density, decrease the size, less weight and better input power quality. In whatever way, application of these converters are restricted because of some issues such as different control strategies, high susceptibility to input power disturbances, common mode voltage effects and less voltage transfer ratio. Recently, matrix converters have gained a resurgence of importance due to the improvements in the semiconductor device industry and the increasing of processor technologies, which promises real implementation of matrix converters in the control of drives. The real effect of indirect space vector modulation scheme for very sparse matrix converter performance will be measures by testing of computationally for using indirect space vector modulation strategies with the passive R load and active load .

scholarly journals Research on Commutation and Coordination Control Strategy of Excitation Power Supply Based on Bidirectional Reduced Matrix Converter for Ion Accelerator

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3396 ◽  
Author(s):  
Weizhang Song ◽  
Jiang Liu ◽  
Xiangdong Sun ◽  
Fenjun Wu ◽  
Daqing Gao ◽  
...  
Keyword(s):  
Control Strategy ◽  
Power Supply ◽  
Power Flow ◽  
Excitation Power ◽  
Input Power ◽  
Matrix Converter ◽  
Coordination Control ◽  
Current Harmonics ◽  
Ion Accelerator ◽  
Bidirectional Power Flow

The contribution of this paper is putting forward a kind of ion accelerator magnet excitation power supply with bidirectional reduced matrix converter (BRMC) as well as a coordination control strategy with bipolar current space vector modulation strategy, which is utilized to realize bidirectional power flow for a BRMC system to solve problems such as low input power factor, large input current harmonics and no bidirectional energy in the conventional ion accelerator magnet excitation power supply. Meanwhile, a hybrid commutation strategy combining the simplified three-step commutation with zero vector commutation was proposed to solve the commutation problem for a matrix-type first stage in BRMC. The feasibility and effectiveness of the proposed strategy, which can achieve bidirectional energy flow and safer commutation, have been verified by the experimental results.

scholarly journals Realization of SVM Algorithm for Indirect Matrix Converter and Its Application in Power Factor Control

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Gang Li
Keyword(s):  
Power Factor ◽  
Power Flow ◽  
Experimental Tests ◽  
Input Power ◽  
Matrix Converter ◽  
Modulation Scheme ◽  
Space Vector ◽  
Zero Current Switching ◽  
Svm Algorithm ◽  
Bidirectional Power Flow

Compared with AC-DC-AC converter, matrix converter (MC) has several advantages for its bidirectional power flow, controllable power factor, and the absence of large energy storage in dc-link. The topology of MC includes direct matrix converter (DMC) and indirect matrix converter (IMC). IMC has received great attention worldwide because of its easy implementation and safe commutation. Space vector PWM (SVM) algorithm for indirect matrix converter is realized on DSP and CPLD platform in this paper. The control of the rectifier and inverter in IMC can be decoupled because of the intermediate dc-link. The space vector modulation scheme for IMC is discussed and the PWM sequences for the rectifier and inverter are generated. And a two-step commutation of zero current switching (ZCS) in the rectifier is achieved. Input power factor of IMC can be changed by adjusting the angle of the reference current vector. Experimental tests have been conducted on a RB-IGBT based indirect matrix converter prototype. The results verify the performance of the SVM algorithm and the ability of power factor correction.

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