Modeling and Control of Zero-Sequence Circulating Current in Parallel Converters With Space Vector Modulation

2017 ◽  
Vol 5 (1) ◽  
pp. 363-377 ◽  
Author(s):  
Mohammad Hasan Ravanji ◽  
Nima Amouzegar Ashtiani ◽  
Mostafa Parniani ◽  
Hossein Mokhtari
Keyword(s):  
Space Vector Modulation ◽  
Space Vector ◽  
Modeling And Control ◽  
Circulating Current ◽  
Zero Sequence ◽  
Vector Modulation ◽  
And Control ◽  
Parallel Converters

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.

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