AN EXTENDED WARD EQUIVALENT APPROACH FOR POWER-SYSTEM SECURITY ASSESSMENT

Authors
LO KL PENG LJ MACQUEEN JF EKWUE AO CHENG DTY
Citation
Kl. Lo et al., AN EXTENDED WARD EQUIVALENT APPROACH FOR POWER-SYSTEM SECURITY ASSESSMENT, Electric power systems research, 42(3), 1997, pp. 181-188
Citations number
17
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electric power systems research → ACNP
ISSN journal
03787796
Volume
42
Issue
3
Year of publication
1997
Pages
181 - 188
Database
ISI
SICI code
0378-7796(1997)42:3<181:AEWEAF>2.0.ZU;2-F
Abstract
A complete extended Ward equivalent approach is proposed for on-line s ecurity assessment of a power system. This new approach combines the o ff-line topological modelling of the extended Ward equivalent with on- line updating of the parameters of the equivalent model for representi ng real time topology changes of the external system. Test results ind icate that the new equivalent model has an excellent response from the external system to the contingencies of the internal system. (C) 1997 Elsevier Science S.A.