scholarly journals A Sub-Region Based Space Vector Modulation Scheme for Dual 2-Level Inverter System

2018 ◽  
Vol 8 (6) ◽  
pp. 4902
Author(s):  
R. Palanisamy ◽  
A. Velu ◽  
K. Selvakumar ◽  
D. Karthikeyan ◽  
D. Selvabharathi ◽  
...  
Keyword(s):  
Output Voltage ◽  
Modulation Scheme ◽  
Space Vector Modulation ◽  
Switching Loss ◽  
Space Vector ◽  
Dc Voltage ◽  
Multilevel Inverters ◽  
Harmonic Content ◽  
Voltage Stress ◽  
Vector Modulation

This paper deals the implementation of 3-level output voltage using dual 2-level inverter with control of sub-region based Space Vector Modulation (SR-SVM). Switching loss and voltage stress are the most important issues in multilevel inverters, for keep away from these problems dual inverter system executed. Using this proposed system, the conventional 3-level inverter voltage vectors and switching vectors can be located. In neutral point clamped multilevel inverter, it carries more load current fluctuations due to the DC link capacitors and it requires large capacitors. Based on the sub-region SVM used to control IGBT switches placed in the dual inverter system. The proposed system improves the output voltage with reduced harmonic content with improved dc voltage utilisation. The simulation and hardware results are verified using matlab/simulink and dsPIC microcontroller.

A Flexible Space Vector Modulation Scheme for Cascaded H-Bridge Multilevel Inverters Under Failure Conditions

2021 ◽  
pp. 1-1
Author(s):  
Hongjian Lin ◽  
Mahmoud Mehrabankhomartash ◽  
Fan Yang ◽  
Maryam Saeedifard ◽  
Jiangpeng Yang ◽  
...  
Keyword(s):  
Modulation Scheme ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Multilevel Inverters ◽  
Failure Conditions ◽  
Vector Modulation

Applications of Two Level SVPWM in the Cascade Multilevel Carrier-Based PWM

2014 ◽  
Vol 556-562 ◽  
pp. 1939-1944
Author(s):  
Zuo Ming Liu ◽  
Zi Qiang Xi ◽  
Chen Guang Yu
Keyword(s):  
Pulse Width ◽  
Output Voltage ◽  
Pulse Width Modulation ◽  
Space Vector Modulation ◽  
Switching Loss ◽  
Space Vector ◽  
Main Work ◽  
Zero Sequence ◽  
Vector Modulation ◽  
Level Converter

First of all, this paper speculates that the essence of the space vector pulse width modulation (SVPWM) is the injection of some kind of zero sequence component through the theoretical analysis. Increasing the range of output voltage and reducing the switching loss are the optimization it can realize, the essential realization method is implemented by changing the placement of zero space vector. Then the method is applied to the cascade multilevel carrier modulation. The main work of this paper is to analyze the relation between SVPWM and the carrier PWM in the two level converter, then add the discrete modulation into the cascade multilevel carrier modulation to verify that the space vector modulation can be realized in cascade multilevel and can get similar results with the two level.

A Fast and Generalized Space Vector Modulation Scheme for Multilevel Inverters

2014 ◽  
Vol 29 (10) ◽  
pp. 5204-5217 ◽  
Author(s):  
Yi Deng ◽  
Koon Hoo Teo ◽  
Chunjie Duan ◽  
Thomas G. Habetler ◽  
Ronald G. Harley
Keyword(s):  
Modulation Scheme ◽  
Space Vector Modulation ◽  
Space Vector ◽  
Multilevel Inverters ◽  
Vector Modulation
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