Switching Flow-Graph Modeling Technique for Three-Phase Inverters
Li-Chun Liao
Ching-Tsai Pan
Tai-Lang Jong
Chaoyang Univ. of Technol., Taichung;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: April 2008
Volume: 55,
Issue: 4
On page(s): 1603-1613
ISSN: 0278-0046
INSPEC Accession Number: 9920927
Digital Object Identifier: 10.1109/TIE.2008.918618
Current Version Published: 2008-04-04
Abstract
In this paper, a unified graphical modeling technique is developed for investigating the behavior of pulsewidth- modulated three-phase inverters. By introducing the virtual- switch concept together with its virtual switching function, it is seen that the existing attractive switching flow-graph modeling technique for dc-to-dc converters can be extended to three-phase inverters without losing its merits. The corresponding large- signal, steady-state, and small-signal models can then be also obtained easily. Some examples, implemented easily with MATLAB/ Simulink, are also given to demonstrate the feasibility of the proposed technique.
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