Influence of subtransmission system characteristics on voltage sags

Author

Heine, P. ; Lehtonen, Matti

Author_Institution

Helsinki Univ. of Technol., Espoo, Finland

Volume

2

fYear

2002

fDate

6-9 Oct. 2002

Firstpage

530

Abstract

Sag distributions are highly dependent on network characteristics. Because of the construction of the meshed transmission system, sags caused by transmission faults propagate long distances and affect all the connected power system parts. In this paper, the effect of the characteristics of the subtransmission system on voltage sag characteristics are studied. The size and the short circuit level of the subtransmission system have a considerable influence on sag properties. Study cases were calculated applying network data of parts of the Finnish subtransmission system.

Keywords

network topology; power overhead lines; power supply quality; power system interconnection; power system simulation; power transmission faults; transmission network calculations; Finnish subtransmission system; connected power system; network characteristics; power quality; power system modelling; power transmission system; short circuit level; subtransmission characteristics; transmission faults; voltage sag distribution; Circuit faults; Equations; Frequency estimation; Impedance; Low voltage; Power quality; Power system faults; Power system protection; Power system reliability; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power, 2002. 10th International Conference on

Conference_Location

IEEE

Print_ISBN

0-7803-7671-4

Type

conf

Filename

1221491