scholarly journals Novel Modulation Method for Multidirectional Matrix Converter

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Saman Toosi ◽  
Norhisam Misron ◽  
Tsuyoshi Hanamoto ◽  
Ishak Bin Aris ◽  
Mohd Amran Mohd Radzi ◽  
...  
Keyword(s):  
Power Flow ◽  
Pulse Width Modulation ◽  
Flow Direction ◽  
Matrix Converter ◽  
Modulation Method ◽  
Duty Ratio ◽  
Battery Life ◽  
Matlab Simulation ◽  
Sinusoidal Input ◽  
Direct Duty

This study presents a new modulation method for multidirectional matrix converter (MDMC), based on the direct duty ratio pulse width modulation (DDPWM). In this study, a new structure of MDMC has been proposed to control the power flow direction through the stand-alone battery based system and hybrid vehicle. The modulation method acts based on the average voltage over one switching period concept. Therefore, in order to determine the duty ratio for each switch, the instantaneous input voltages are captured and compared with triangular waveform continuously. By selecting the proper switching pattern and changing the slope of the carriers, the sinusoidal input current can be synthesized with high power factor and desired output voltage. The proposed system increases the discharging time of the battery by injecting the power to the system from the generator and battery at the same time. Thus, it makes the battery life longer and saves more energy. This paper also derived necessary equation for proposed modulation method as well as detail of analysis and modulation algorithm. The theoretical and modulation concepts presented have been verified in MATLAB simulation.

scholarly journals SVPWM Method for Multilevel Indirect Matrix Converter with Eliminate Common Mode Voltage

2019 ◽  
Vol 9 (7) ◽  
pp. 1342
Author(s):  
Nguyen Dinh Tuyen ◽  
Le Minh Phuong
Keyword(s):  
Pulse Width Modulation ◽  
Experimental System ◽  
Power Converter ◽  
Matrix Converter ◽  
Modulation Method ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Three Phase ◽  
Sinusoidal Input ◽  
Bidirectional Power Flow

The multilevel indirect matrix converter (IMC) is a merit of power converter for feeding a three-phase load from three-phase power supply because it has several attractive features such as: Sinusoidal input/output currents, bidirectional power flow, long lifetime due to the absence of bulky electrolytic capacitors. As compared to the conventional IMC, the multilevel IMC provides high output performance by increasing the level of output voltage. In this paper, the novel approach topology of multilevel IMC by using the combination of the cascaded rectifier and the three-level T-Type inverter is introduced. Furthermore, the new space vector pulse width modulation (SVPWM) method for the presented multilevel IMC that eliminate the common-mode voltage is proposed in this paper. The simulation study is carried out in PSIM software to verify the proposed modulation method. Then, an experimental system is built using a three-phase RL load, a multilevel IMC, a DSP controller board and other elements to verify the effectiveness of the proposed modulation method. Some simulation and experimental results are illustrated to confirm the theory analysis.

scholarly journals Elimination of Common Mode Voltage in Three-To-Six-Phase Matrix Converter

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1662 ◽  
Author(s):  
Janina Rząsa ◽  
Elżbieta Sztajmec
Keyword(s):  
Pulse Width Modulation ◽  
Electronic System ◽  
Matrix Converter ◽  
Modulation Method ◽  
Common Mode ◽  
Common Mode Voltage ◽  
M Phase ◽  
The Matrix ◽  
Displacement Angle ◽  
Vector Modulation

The matrix converter (MC) is the n-phase input and m-phase output power electronic system. To synthesis the controllable sinusoidal output voltage and input current with controllable input displacement angle, the pulse width modulation method (PWM) is used in the MC. During the modulation process a problem of the common mode voltage (CMV) exists. The elimination of the CMV in three-to-six-phase MC by usage of only rotating voltage space vectors is analyzed in the paper. The carrier based implementation of the space vector modulation (SVM) with Venturini modulation functions is applied to the control of the three-to-six-phase MC. Entire elimination of the CMV in three-to-six-phase MC is presented in the paper. The simulation and experiment results confirm utility of the proposed modulation method.

Implementation and Comparative Analysis of Time Equivalent Space Vector PWM Method for 3 Phase to 3 Phase Matrix Converter

2021 ◽  
Vol 54 (4) ◽  
pp. 617-622
Author(s):  
Akhilesh Kumar ◽  
Pradip K. Sadhu ◽  
Jay Singh
Keyword(s):  
Comparative Analysis ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Harmonic Distortion ◽  
Matrix Converter ◽  
Total Harmonic Distortion ◽  
Modulation Method ◽  
Space Vector Pwm ◽  
Space Vector ◽  
Bidirectional Power Flow

Nowadays, the matrix converter (MC) has become the prominent power converter. Its unique qualities like single-stage ac to ac conversion, bidirectional power flow, sinusoidal response, unity power factor, and no need for dc-link makes it superior among all power converters. This archival literature investigates the various pulse width modulation (PWM) methods and proposed a novel pulse width modulation (PWM) method named Time Equivalent space vector pulse width modulation. In this article this novel modulation method is compared with exiting carrier-based pulse width control and space vector control methods for a 3 phase to 3 phase matrix converters. Simulation model is built in Matlab and comparative analysis based on total harmonic distortion (THD) will be given for different methods. Simulation results revealed that total harmonic distortion (THD) of Time Equivalent space vector PWM is least so this novel method is best and more efficient in comparison to others.

Study on Modulation Strategy with Neutral-Point Balancing Control for Three-Level Two Stage Matrix Converter

2012 ◽  
Vol 433-440 ◽  
pp. 6951-6958
Author(s):  
Wei Zhang Song ◽  
Yan Ru Zhong ◽  
Ying Ye ◽  
Chen Xue
Keyword(s):  
Matrix Converter ◽  
Neutral Point ◽  
Virtual Space ◽  
Modulation Method ◽  
Two Stage ◽  
Space Vector ◽  
Output Performance ◽  
Point Potential ◽  
Sinusoidal Input ◽  
Balancing Control

Aim to the three-level neutral-point potential balancing problem of three-level two stage matrix converter(TLTSMC),which is a new topology from matrix converter family that can synthesis three-level voltage in order to improve output performance in terms of reduced harmonic contents, this paper discussed the operating principles and a space vector modulation strategy with neutral-point potential balancing control for this topology. The method is divided into two control stages. Space vector PWM without zero vectors is used for rectifier stage. The modulation method of inverter stage based on the virtual space vector concept only requires the condition that the flow of neutral-point current equals zero, so the neutral-point balancing problem of this topology is effectively settled. The commutation principle of TLTSMC is analyzed. Finally, the validity and feasibility of this modulation method is tested by simulation and experiment, the result indicates that TLTSMC with the modulation strategy produces better output performance in terms of reduced harmonic contents and is also able to maintain sinusoidal input currents, furthermore, guarantees the balancing of neutral-point potential over the full range of output voltage.

scholarly journals DSP-based pulse width modulation generator for very Spare Matrix Converter

2015 ◽  
Vol 18 (3) ◽  
pp. 122-131
Author(s):  
Anh Gia Hoang Nguyen ◽  
Tuyen Dinh Nguyen ◽  
Hong Hee Lee
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Matrix Converter ◽  
Modulation Scheme ◽  
Space Vector Modulation ◽  
Output Current ◽  
Sinusoidal Input ◽  
Simulation Results ◽  
Implementation Method ◽  
Vector Modulation

This paper present a modulation scheme for the Spare Matrix Converter (SMC) topology. The proposed method uses the space vector modulation (SVPWM) technique to control the converter’s rectifier stage and inverter stage. This method achieved the maximum modulation ratio of 0.866 with sinusoidal input/output current waveforms. In the other hand, a simple real-time implementation method avoiding additional CPLD or FPGA devices is introduced. This technique is verified through simulation results using PSIM software and experimental results a 32-bit floating-point DSP (TMS 320F28335).

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>

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