Optimal Space Vector Sequence Investigation Based on Natural Sampling SVM for Medium-Voltage Current-Source Converter

2017 ◽  
Vol 32 (1) ◽  
pp. 176-185 ◽  
Author(s):  
Qiang Wei ◽  
Bin Wu ◽  
Dewei David Xu ◽  
Navid R. Zargari
Keyword(s):  
Current Source ◽  
Vector Sequence ◽  
Space Vector ◽  
Medium Voltage ◽  
Current Source Converter ◽  
Natural Sampling ◽  
Optimal Space

scholarly journals Space vector PWM sequence and harmonic comparison for high power current source rectifier

2021 ◽  
Author(s):  
Nagaraja H. Chikkegowda
Keyword(s):  
High Power ◽  
Current Source ◽  
Switching Frequency ◽  
Space Vector Pwm ◽  
Vector Sequence ◽  
Space Vector ◽  
Switching Losses ◽  
Vector Sequences ◽  
Vector Modulation ◽  
A Current

The space vector PWM (SVPWM) schemes for high power current source drives normally produce low order harmonics due to low switching frequency. To provide a SVPWM with the best harmonic performance, different space vector sequences suitable for a current source rectifier (CSR) are investigated in this project. Details on how to achieve the waveform symmetries with minimum switching frequency for each sequence are discussed. A thorough comparison of the harmonic performance of different space vector sequences based on current source rectifier implementations is carried out. An optimum space vector modulation (SVM) method is proposed to achieve the best line current THD and reduced switching losses. The space vector sequence investigation has been verified in simulation and experimentally using a 10kVA GCT based CSR prototype.

scholarly journals Generalized space vector control for current source inverters and rectifiers

2016 ◽  
Vol 65 (2) ◽  
pp. 235-248
Author(s):  
J. Anitha Roseline ◽  
M. Senthil Kumaran ◽  
V. Rajini
Keyword(s):  
Vector Control ◽  
Pulse Width Modulation ◽  
Short Circuit ◽  
Current Source ◽  
Space Vector ◽  
Digital Implementation ◽  
Flexible Control ◽  
Medium Voltage ◽  
Converter Topology ◽  
Current Source Inverters

Abstract Current source inverters (CSI) is one of the widely used converter topology in medium voltage drive applications due to its simplicity, motor friendly waveforms and reliable short circuit protection. The current source inverters are usually fed by controlled current source rectifiers (CSR) with a large inductor to provide a constant supply current. A generalized control applicable for both CSI and CSR and their extension namely current source multilevel inverters (CSMLI) are dealt in this paper. As space vector pulse width modulation (SVPWM) features the advantages of flexible control, faster dynamic response, better DC utilization and easy digital implementation it is considered for this work. This paper generalizes SVPWM that could be applied for CSI, CSR and CSMLI. The intense computation involved in framing a generalized space vector control are discussed in detail. The algorithm includes determination of band, region, subregions and vectors. The algorithm is validated by simulation using MATLAB /SIMULINK for CSR 5, 7, 13 level CSMLI and for CSR fed CSI.

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