Sparse network equivalent based on time-domain fitting

Author

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

Author_Institution

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

Volume

17

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

182

Lastpage

189

Abstract

The paper presents an approach for network equivalent calculation for the analysis of electromagnetic transients in power systems. It is based on time-domain fitting and enforces some degree of sparsity while preserving the accuracy of the equivalent. The calculated equivalent is appropriate for direct interface with the rest of the system in time-domain. A constrained least squares solution of the time-domain fitting equations is used to ensure accuracy at 0 and 60 Hz. Results demonstrating the accuracy and computational efficiency of the method are presented

Keywords

least squares approximations; power system transients; time-domain analysis; transmission network calculations; 0 Hz; 60 Hz; computational efficiency; constrained least squares solution; discrete time; electromagnetic transients analysis; network equivalent calculation; power systems; sparsity; time-domain fitting; Brazil Council; Computational efficiency; Difference equations; Electromagnetic analysis; Fitting; Least squares methods; Power system analysis computing; Power system transients; Time domain analysis; Transient analysis;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.974206

Filename

974206