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.

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 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 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 A Bidirectional Double Uneven Power Converter Based DC–DC Converter for Solid-State Transformers

Electronics ◽  
2018 ◽  
Vol 7 (11) ◽  
pp. 334 ◽  
Author(s):  
Kiwoo Park ◽  
Kyo-Beum Lee
Keyword(s):  
Solid State ◽  
Distribution System ◽  
Power Flow ◽  
Power Converter ◽  
Small Scale ◽  
Power Semiconductor ◽  
Switching Losses ◽  
Zero Current Switching ◽  
Zero Current ◽  
Bidirectional Power Flow

This paper presents a novel bidirectional double uneven power (BiDUP) based dc-dc converter and its design and control methods. The proposed converter utilizes two dual active bridge (DAB) converters with different power ratings in a special way to realize zero current switching (ZCS), where both turn-on and turn-off switchings occur under the zero-current condition. A design example of the proposed BiDUP converter is presented for medium voltage (MV) and high-power solid-state transformer (SST) systems where both voltage transformation and bidirectional power flow are required. The main features of the proposed converter are to reduce both the switching losses in power semiconductor devices and the filter inductance requirement simultaneously. To verify the feasibility of the proposed converter, a simulation study on the BiDUP converter based SST in a distribution system is presented. Furthermore, to validate the operational principle of the proposed converter, an experimental study using a small-scale prototype is also presented.

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