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

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 631 ◽  
Author(s):  
Janina Rząsa ◽  
Elżbieta Sztajmec
Keyword(s):  
Pulse Width Modulation ◽  
Matrix Converter ◽  
Modulation Method ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Multiphase Systems ◽  
M Phase ◽  
Displacement Angle ◽  
Space Vectors ◽  
Vector Modulation

A multiphase matrix converter (MC) is a direct AC/AC converter with n-phase input and m-phase output that is required to supply multiphase systems. To synthesize the controllable sinusoidal output voltage and input current with controllable displacement angle, the pulse width modulation (PWM) is implemented. On account of the PWM usage, there is common mode voltage (CMV), which is detrimental and causes lots of failures. This paper investigates the CMV elimination in the three-to-nine-phase MC. The carrier-based space vector modulation (SVM) with Venturini modulation functions is used. The elimination of the CMV is realized by applying rotating voltage space vectors only. The simulation results presented in this study show that the CMV is entirely eliminated and prove the usefulness of the proposed modulation method.

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.

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 An Alternative Carrier-Based Implementation of Space Vector Modulation to Eliminate Common Mode Voltage in a Multilevel Matrix Converter

Electronics ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 190 ◽  
Author(s):  
Janina Rząsa
Keyword(s):  
Output Voltage ◽  
Control Method ◽  
Matrix Converter ◽  
Modulation Method ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Simulation And Experiment ◽  
Vector Modulation

The main aim of the paper is to find a control method for a multilevel matrix converter (MMC) that enables the elimination of common mode voltage (CMV). The method discussed in the paper is based on a selection of converter configurations and the instantaneous output voltages of MMC represented by rotating space vectors. The choice of appropriate configurations is realized by the use of space vector modulation (SVM), with the application of Venturini modulation functions. A multilevel matrix converter, which utilizes a multilevel structure in a traditional matrix converter (MC), can achieve an improved output voltage waveform quality, compared with the output voltage of MC. The carrier-based implementation of SVM is presented in this paper. The carrier-based implementation of SVM avoids any trigonometric and division operations, which could be required in a general space vector approach to the SVM method. With use of the proposed control method, a part of the high-frequency output voltage distortion components is eliminated. The application of the presented modulation method eliminates the CMV in MMC what is presented in the paper. Additionally, the possibility to control the phase shift between the appropriate input and output phase voltages is obtained by the presented control strategy. The results of the simulation and experiment confirm the utility of the proposed modulation method.

Space vector modulation with reduced common mode voltage for six-phase drives

2020 ◽  
Vol 39 (2) ◽  
pp. 395-411
Author(s):  
Mohammad Jafar Zandzadeh ◽  
Mohsen Saniei ◽  
Reza Kianinezhad
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Torque Ripple ◽  
Drive System ◽  
Limiting Factors ◽  
Space Vector ◽  
Common Mode ◽  
Content Type ◽  
Common Mode Voltage ◽  
Space Vectors

Purpose This paper aims to present a modified space vector pulse width modulation (SVPWM) technique for six-phase induction motor drive based on common-mode voltage (CMV) and current losses which are two important issues affecting drive system behavior and quality. Design/methodology/approach It is shown that the presence of z-component currents and the presence of CMV in six-phase drive system are two major limiting factors in space vector selection. The behavior of several space vector selections in a two-level inverter considering minimum CMV and z-components is investigated. Then, the space vectors in a three-level inverter is analyzed and tried to explore an SVM technique with better behavior. Findings The analyses show that all the problems cannot be solved in a six-phase drive system with two-level inverter despite having 64 space vectors; this study tried to overcome the limitations by exploring space vectors in a three-level inverter. Originality/value The proposed pulse width modulation (PWM) strategy leads to minimum current distortion and undesired current components with zero CMV and modest torque ripple.

scholarly journals Space-vector modulation for three-phase indirect matrix converters to reduce common-mode voltage

2021 ◽  
Vol 4 (2) ◽  
pp. first
Author(s):  
Hoan Quoc Tran ◽  
Tien Manh Vu ◽  
Tuyen Dinh Nguyen
Keyword(s):  
Matrix Converter ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Output Performance ◽  
Three Phase ◽  
The Common ◽  
Vector Modulation ◽  
Zero Voltage

This paper presents a space vector modulation strategy for a three-phase indirect matrix converter to reduce the common-mode voltage and maintain the output performance. To reduce the peak value of the common-mode voltage to 57.7% of the input phase voltage, three active voltage vectors are used to generate the desired output voltage with arbitrary amplitude and frequency, instead of using both active and zero voltage vectors as in the traditional space vector modulation strategy. Although the common-mode voltage is reduced, the output waveform quality of the three-phase indirect matrix converter deteriorates due to the absence of the zero voltage vectors. To overcome this problem, the proposed space vector modulation strategy is redesigned to control the rectifier stage of the indirect matrix converter by utilizing three active current vectors instead of two as usual. Consequently, the constant average dc-link voltage is achieved, which can improve the output performance in terms of the output voltage and current harmonic distortion. The simulation is implemented by PSIM software and experimental results are provided to verify the effectiveness of the proposed space vector modulation strategy.

scholarly journals An Improved T-type Switched-Capacitor Based 3-level 3-Phase Inverter with Common Mode Voltage Elimination and Voltage Boosting Capability

2021 ◽  
Author(s):  
Arpan Hota ◽  
sumon dhara ◽  
venu sonti ◽  
sachin jain ◽  
Vivek Agarwal
Keyword(s):  
Modulation Depth ◽  
Voltage Source ◽  
Switched Capacitor ◽  
Common Mode ◽  
Common Mode Voltage ◽  
Three Phase ◽  
Level 3 ◽  
Space Vectors ◽  
Vector Modulation ◽  
Type 3

<p>Zero common mode voltage (ZCMV) space vector modulation (SVM) strategy applied to a three-phase multilevel inverter (MLI) eliminates the common mode voltage (CMV). However, the usage of ZCMV-SVM strategy reduces the number of levels in the output voltage and requires higher magnitude dc voltage source due to the reduced modulation depth of the employed PWM scheme. Moreover, the usage of a single dc-source in such systems may have issues with respect to capacitor voltage balancing. Taking into account all the above issues, a 3-level inverter solution is proposed in this manuscript. The complete details of the method used for developing the proposed solution using the ZCMV space vectors is also included in this paper. The proposed topology utilizes a unique combination of a T-type 3-level inverter and a switched-capacitor (SC) circuit to achieve ZCMV performance with a single dc-source of low magnitude at a reduced component count. Analysis of the CMV and terminal voltages along with the design of the SCs are presented in this paper. The proposed topology is compared with the existing topologies to prove its unique merits over the other 3LI solutions with ZCMV capability. All the claims are validated using simulation and experimental results.</p>

scholarly journals Common Mode Voltage Elimination for Quasi-Switch Boost T-Type Inverter Based on SVM Technique

Electronics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 76 ◽  
Author(s):  
Duc-Tri Do ◽  
Minh-Khai Nguyen ◽  
Van-Thuyen Ngo ◽  
Thanh-Hai Quach ◽  
Vinh-Thanh Tran
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Space Vector Modulation ◽  
Common Mode ◽  
Switching Sequence ◽  
Modulation Technique ◽  
Common Mode Voltage ◽  
Vector Modulation ◽  
Zero Vector ◽  
Current Ripple

In this paper, the effect of common-mode voltage generated in the three-level quasi-switched boost T-type inverter is minimized by applying the proposed space-vector modulation technique, which uses only medium vectors and zero vector to synthesize the reference vector. The switching sequence is selected smoothly for inserting the shoot-through state for the inverter branch. The shoot-through vector is added within the zero vector in order to not affect the active vectors as well as the output voltage. In addition, the shoot-through control signal of active switches of the impedance network is generated to ensure that its phase is shifted 90 degrees compared to shoot through the signal of the inverter leg, which provides an improvement in reducing the inductor current ripple and enhancing the voltage gain. The effectiveness of the proposed method is verified through simulation and experimental results. In addition, the superiority of the proposed scheme is demonstrated by comparing it to the conventional pulse-width modulation technique.

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