Impact of thyristor controlled series capacitor on bulk power system reliability

Author

Huang, Garng M. ; Li, Yishan

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

Volume

2

fYear

2002

fDate

25-25 July 2002

Firstpage

975

Abstract

A thyristor controlled series capacitor (TCSC) is expected to provide power systems with a number of benefits. This paper investigates its effects on bulk power system reliability. The reliability model of a transmission line with a TCSC is built and simplified via the state space approach. Optimal power flow (OPF) including the influence of TCSC is then introduced to decide the load curtailment. To examine the impact of TCSC, system reliability is evaluated in various operation environments, such as different TCSC placement locations and different line thermal limits. Finally, reliability is calculated assuming the TCSC is always working and the results are compared with those obtained using the model in which the failure of TCSC is considered. The insignificant difference indicates that the ideal TCSC model can be used for power system reliability analysis if the TCSC is highly reliable.

Keywords

power capacitors; power system reliability; state-space methods; thyristor convertors; bulk power system reliability; load curtailment; optimal power flow; state space approach; thyristor controlled series capacitor; transmission line reliability model; Automatic control; Control systems; Load flow; Power capacitors; Power system modeling; Power system reliability; Power transmission lines; State-space methods; Switches; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Summer Meeting, 2002 IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-7518-1

Type

conf

DOI

10.1109/PESS.2002.1043518

Filename

1043518