Suitable placements of multiple FACTS devices to improve the transient stability using trajectory sensitivity analysis

Author

Nasri, Amin ; Eriksson, Robert ; Ghandhari, M.

Author_Institution

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

fYear

2013

fDate

22-24 Sept. 2013

Firstpage

1

Lastpage

6

Abstract

Trajectory sensitivity analysis (TSA) is used as a tool for suitable placement of multiple series compensators in the power system. The goal is to maximize the benefit of these devices in order to enhance the transient stability of the system. For this purpose, the trajectory sensitivities of the rotor angles of the most critical generators with respect to the reactances of transmission lines are calculated in the presence of the most severe faults. Based on the obtained trajectory sensitivities, a method is proposed to determine how effective the series compensation of each transmission line is for improving the transient stability. This method is applied to the Nordic-32 test system to find the priorities of the transmission lines for installation of several series compensators. Simulation with industrial software shows the validity and efficiency of the proposed method.

Keywords

flexible AC transmission systems; power system transient stability; rotors; sensitivity analysis; Nordic-32 test system; most critical generator; multiple FACTS device; multiple series compensator; rotor angle; trajectory sensitivity analysis; transient stability; transmission line reactance; Generators; Power system stability; Power system transients; Power transmission lines; Sensitivity; Stability analysis; Trajectory;

fLanguage

English

Publisher

ieee

Conference_Titel

North American Power Symposium (NAPS), 2013

Conference_Location

Manhattan, KS

Type

conf

DOI

10.1109/NAPS.2013.6666828

Filename

6666828