The large-signal SFG model for cascaded multilevel inverters with experimental verification

Author

Liao, Li-Chun ; Lin, Ming-Yu ; Lin, Chi-Hung

Author_Institution

Dept. of Comput. Sci. & Inf. Eng., Chaoyang Univ. of Technol., Taichung, Taiwan

fYear

2010

fDate

21-24 June 2010

Firstpage

2465

Lastpage

2468

Abstract

In this paper, the switching flow-graph (SFG) modeling technique is used to build the large-signal model of a cascaded multilevel inverter. With the concept of virtual switch and virtual switching function proposed in SFG modeling technique, the large-signal SFG model of a cascaded multilevel inverter can be derived easily and without complex mathematic works. The SFG model can also be implemented in MATLAB/SIMULINK directly and only 1/9 CPU time is needed as compared with PSPICE model. Based on the developed SFG model, the behavior of cascaded multilevel inverters can easily be analyzed. The experimental examples demonstrate that the simulation results by using SFG model are closely agreed with the experimental results.

Keywords

flow graphs; invertors; CPU time; Matlab-Simulink; PSPICE model; cascaded multilevel inverters; experimental verification; large-signal SFG model; switching flow-graph modeling technique; virtual switch; virtual switching function; Circuits; DC-DC power converters; Electromagnetic interference; Inverters; Mathematical model; Mathematics; Power electronics; Rectifiers; Steady-state; Switches; PD-PWM; cascaded multilevel inverters; models; switching flow-graph; virtual switching functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC), 2010 International

Conference_Location

Sapporo

Print_ISBN

978-1-4244-5394-8

Type

conf

DOI

10.1109/IPEC.2010.5542370

Filename

5542370