Small signal multi-level STATCOM model

Author

Sternberger, R. ; Jovcic, D.

Author_Institution

Dept. of Eng., Univ. of Aberdeen

fYear

0

fDate

0-0 0

Abstract

This paper presents analytical approach for modelling a multilevel STATCOM system. The small-signal dynamic STATCOM model has modular structure and consists of two separate subsystem models: an AC model and a DC model. The converter, controller and phase-locked-loop (PLL) unit are included in the DC model. In order to represent the AC system together with the DC system the AC system variables are converted by using the dq-transformation. The use of an equivalent capacitance for representing a variable DC capacitance in a multilevel converter is discussed. The model is implemented in MATLAB and the validity and accuracy of the model is verified against non-linear digital simulation PSCAD/EMTDC

Keywords

phase locked loops; power convertors; static VAr compensators; DC capacitance; dq-transformation; equivalent capacitance; multilevel STATCOM system; multilevel converter; nonlinear digital simulation; phase-locked-loop unit; small-signal dynamic STATCOM; Analytical models; Automatic voltage control; Capacitance; EMTDC; Mathematical model; PSCAD; Phase locked loops; Pulse width modulation converters; Static VAr compensators; Switching converters; Flexible AC transmission systems (FACTS); Modeling; Multilevel converter; State space methods; Static compensator (STATCOM);

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society General Meeting, 2006. IEEE

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-0493-2

Type

conf

DOI

10.1109/PES.2006.1709432

Filename

1709432