The influence of model parameters and uncertainties on assessment of network wide costs of voltage sags

Author

Avendano-Mora, M. ; Milanovic, Jovica V. ; Patel, B. ; Zhang, Y.

Author_Institution

Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK

fYear

2009

fDate

15-17 Sept. 2009

Firstpage

1

Lastpage

7

Abstract

The paper analyzes the influence of model parameters and uncertainties on assessment of financial losses due to voltage sags. Several parameters associated with the stochastic estimation of system sag performance are considered, namely the number of fault positions on lines, fault resistance, transformer neutral impedance, time-varying fault rate, and pre-fault voltage profiles. Additionally, the influence of location in the network and composition of sensitive loads is also studied. The results of the analysis are illustrated using 295-bus generic distribution system (GDS).

Keywords

fault diagnosis; power supply quality; stochastic processes; 295-bus generic distribution system; fault positions; fault resistance; financial losses; network wide costs; prefault voltage profiles; stochastic estimation; time-varying fault rate; transformer neutral impedance; voltage sags; Computer simulation; Costs; Electrical equipment industry; Manufacturing industries; Power quality; Power system modeling; Stochastic systems; Time varying systems; Uncertainty; Voltage fluctuations; financial losses; power quality; uncertainties; voltage sag;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Power Quality and Utilisation, 2009. EPQU 2009. 10th International Conference on

Conference_Location

Lodz

ISSN

2150-6655

Print_ISBN

978-1-4244-5171-5

Electronic_ISBN

2150-6655

Type

conf

DOI

10.1109/EPQU.2009.5318857

Filename

5318857