Vector computer implementation of power flow outage studies

Author

Granelli, G.P. ; Montagna, M. ; Pasini, G.L. ; Marannino, P.

Author_Institution

Dipartimento di Ingegneria Elettrica, Pavia Univ., Italy

Volume

7

Issue

2

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

798

Lastpage

804

Abstract

The authors present an application of vector and parallel processing to power flow outage studies on large-scale networks. In order to improve computational efficiency, the operations required to perform both the forward/backward solution and the power residual calculation are gathered in the form of long FORTRAN DO loops. Two algorithms are proposed, and results are compared with the results of a program written for scalar processing. Simulations for the outage studies on IEEE standard networks and some different configurations of Italian and European EHV systems were run on a CRAY Y-MP8/432 vector computer (and partially on a IBM 3090/200S VF). The multitasking facility of the CRAY computer was also exploited in order to shorten the wall clock time required by a complete outage simulation

Keywords

digital simulation; electrical faults; load flow; parallel processing; power system analysis computing; CRAY Y-MP8/432; EHV; FORTRAN DO loops; IBM 3090/200S VF; algorithms; digital simulation; electrical faults; load flow; multitasking; parallel processing; power flow outage; power system analysis computing; vector processing; Application software; Clocks; Computational efficiency; Computational modeling; Computer networks; Computer simulation; Large-scale systems; Load flow; Multitasking; Parallel processing;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.141788

Filename

141788