Robust sparse network equivalent for large systems: part I-methodology

Author

Boaventura, Wallace Do Couto ; Semlyen, Adam ; Iravani, M. Reza ; Lopes, Amauri

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Toronto, Ont., Canada

Volume

19

Issue

1

fYear

2004

Firstpage

157

Lastpage

163

Abstract

This paper deals with the calculation of a sparse network equivalent (SNE) for the analysis of electromagnetic transients in large systems. The main feature of the new approach is the enforcement of sparsity, stability, passivity, and accuracy at specific frequencies of the equivalent. The procedure is based on time-domain fitting with quadratic programming to enforce the constraints. The SNE can be interfaced with transient calculation programs directly in time domain. Results are presented in the companion paper.

Keywords

power system transient stability; quadratic programming; time-domain analysis; accuracy enforcement; discrete time; electromagnetic transients analysis; frequency accuracy; large systems; passivity enforcement; quadratic programming; robust sparse network equivalent; sparsity enforcement; stability enforcement; time-domain fitting; transient calculation programs; Brazil Council; Computational efficiency; Computational modeling; Frequency response; Power system transients; Power transmission lines; Quadratic programming; Robust stability; Robustness; Time domain analysis;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/TPWRS.2003.818603

Filename

1266564