IDENTIFYING AN ERROR SOURCE IN THE DIFFERENTIAL-EQUATION APPROACH FORTHE TRANSMISSION-LINE FAULT LOCATION ALGORITHM

Authors
LIAN B SALAMA MMA HANSON J
Citation
B. Lian et al., IDENTIFYING AN ERROR SOURCE IN THE DIFFERENTIAL-EQUATION APPROACH FORTHE TRANSMISSION-LINE FAULT LOCATION ALGORITHM, Electric power systems research, 42(2), 1997, pp. 115-119
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electric power systems research → ACNP
ISSN journal
03787796
Volume
42
Issue
2
Year of publication
1997
Pages
115 - 119
Database
ISI
SICI code
0378-7796(1997)42:2<115:IAESIT>2.0.ZU;2-0
Abstract
An overlooked error source in the differential equation approach for l ocating a fault on a transmission line is investigated. Due to the use of difference equations in the expansion of the differential equation , a mismatch results between the different transfer functions in the f requency domain that are applied to different terms in the same equati on, causing an error in the final fault location estimate. This error source is identified and its effect on the fault location estimate is shown through numerical simulation. A criterion is proposed for improv ing the difference approximation. (C) 1997 Elsevier Science S.A.