Appropriate placement of series compensators to improve transient stability of power system

Author

Nasri, Amin ; Ghandhari, Mehrdad ; Eriksson, Robert

Author_Institution

Dept. of Electr. Power Syst., KTH R. Inst. of Technol., Stockholm, Sweden

fYear

2012

fDate

21-24 May 2012

Firstpage

1

Lastpage

6

Abstract

Trajectory sensitivity analysis is used to find the best places for installation of thyristor controlled series capacitors (TCSC) to improve transient stability of the power system. Based on the rotor angles of generators, an equivalent angle (δ_eq) is defined by determining accelerating and decelerating machines, and then using trajectory sensitivities of this angle with respect to the impedances of the transmission lines in the post-fault system, appropriate locations for placing TCSC will be found. Severity of the faults is also considered in this calculation. This method is applied to the IEEE 3-machine 9-bus test system to find the priorities of the transmission lines for installation of TCSC. Simulation with industrial software verifies the obtained results.

Keywords

IEEE standards; electric generators; power system transient stability; power transmission lines; rotors; thyristor applications; IEEE 3-machine 9-bus test system; TCSC; accelerating machines; decelerating machines; generator rotor angles; power system improve transient stability; series compensators; thyristor controlled series capacitors; transmission lines; Circuit faults; Power system stability; Power transmission lines; Sensitivity; Trajectory; Transient analysis; Critical Clearing Time (CCT); Thyristor Controlled Series Capacitor (TCSC); Trajectory sensitivity analysis (TSA); Transient Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Smart Grid Technologies - Asia (ISGT Asia), 2012 IEEE

Conference_Location

Tianjin

Print_ISBN

978-1-4673-1221-9

Type

conf

DOI

10.1109/ISGT-Asia.2012.6303243

Filename

6303243