Modeling of multilevel voltage source converter

Author

Deshpande, N.R. ; Sasi, N. ; Sawant, R.R.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Bombay, India

fYear

2004

fDate

9-11 Nov. 2004

Firstpage

24

Lastpage

29

Abstract

Modeling of voltage source converter (VSC) is always carried out independent of the type of application, for analysis of the system for various test conditions. In the present paper two main philosophies of modeling viz. continuous time and discrete time, linear time varying modeling of three phase two level VSC is analyzed and verified. The steady state operating curves from both the models are presented and analyzed. Multilevel voltage source converter topology is superior alternative to multipulse arrangement for high power applications like STATCOM. Thus, the basic two level VSC model is modified for analysis of multilevel converter topology. The effect of DC-link unbalance is ignored and no pulse width modulation is considered for ease.

Keywords

continuous time systems; discrete time systems; flexible AC transmission systems; static VAr compensators; switching convertors; time-varying systems; DC-link unbalance; FACTS; STATCOM; continuous time modeling; discrete time modeling; flexible AC transmission systems; linear time varying modeling; multilevel voltage source converter; multipulse arrangement; steady state operating curves; switching function;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Systems and Applications, 2004. Proceedings. 2004 First International Conference on

Conference_Location

Hong Kong, China

Print_ISBN

962-367-434-1

Type

conf

Filename

1429182