Analysis of nonlinear phenomena and design aspects of three-phase space-vector-modulated converters

The analysis, design aspects, and numerical results of a current-controlled three-phase space-vector-modulated (SVM) voltage-source converter (VSC) are presented. The aim of the current controller of the VSC is to track the sinusoidal reference currents in each phase. The current controller includes...

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Bibliographic Details
Published inIEEE transactions on circuits and systems. 1, Fundamental theory and applications Vol. 50; no. 8; pp. 1064 - 1071
Main Authors Suto, Z., Nagy, I.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.08.2003
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Automation
Bifurcation
Chaos
Converters
Power conversion
Power electronics
Proportional control
Sliding mode control
Support vector machines
Voltage
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Summary:The analysis, design aspects, and numerical results of a current-controlled three-phase space-vector-modulated (SVM) voltage-source converter (VSC) are presented. The aim of the current controller of the VSC is to track the sinusoidal reference currents in each phase. The current controller includes a complex saturation function in order to avoid overmodulation in the SVM. Due to this strong nonlinearity, the study leads to system states not treated so far. An approximate Poincare map is derived. The paper reports saddles in the state space as a consequence of fold bifurcation and other phenomena in conjunction with saddles. Design conditions are derived to avoid undesired operation.
ISSN:1057-7122
1558-1268
DOI:10.1109/TCSI.2003.815213