Inclusion of voltage drop and feeder loading constraints in the evaluation of reliability indices for radial distribution networks

Author

Coelho, A. ; de Castro, C.L.C. ; Silva, M. G da ; Rodrigues, A.B.

Author_Institution

Electr. Eng. Dept., Fed. Univ. of Maranhao, Sao Luis Maranhao

Volume

153

Issue

6

fYear

2006

fDate

11/1/2006 12:00:00 AM

Firstpage

661

Lastpage

669

Abstract

A model that includes voltage drop and feeder loading constraints in the evaluation of reliability indices for radial distribution networks is proposed. The model estimates the nodal voltages using a compensation technique and a simplified version of the power summation load flow for radial networks. The main advantage of this models over existing models is that the post-restoration voltages can be evaluated without modifying the data structure used to evaluate the reliability indices. Results obtained on a large-scale distribution network demonstrate that the proposed methodology can assess the impact of network constraints on reliability indices with an acceptable accuracy whilst incurring a small computation cost

Keywords

compensation; electric potential; load flow; power distribution reliability; power system restoration; compensation technique; feeder loading constraints; large-scale distribution networks; nodal voltages; power summation load flow; radial networks; reliability indices; voltage drop;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings-

Publisher

iet

ISSN

1350-2360

Type

jour

DOI

10.1049/ip-gtd:20050419

Filename

4015889