Title :
Performance issues of distance relays for shunt FACTS compensated transmission lines
Author :
Maturu, Suresh ; Shenoy, U. Jayachandra
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
In this paper, the performance of distance relays when applied to transmission system equipped with shunt FACTS device, Static Synchronous Compensator (STATCOM) is described. The aim of the proposed study is to evaluate the performance of distance relays when STATCOM is incorporated at the mid point of transmission lines for voltage control. A detailed model of STATCOM and its control strategy is presented. The presence of these devices significantly affects apparent impedance seen by the distance relays due to their rapid response to different power system configurations. The distance relay is evaluated for different loading conditions and for different fault locations. The faults are created during various pre-fault loading conditions. The studies are performed on 400KV and 132KV systems and the results are presented. Simulation studies are carried out using transient simulation software, PSCAD/EMTDC.
Keywords :
flexible AC transmission systems; power transmission lines; relays; static VAr compensators; voltage control; PSCAD-EMTDC; STATCOM; distance relay performance; fault location; loading condition; power system configuration; prefault loading condition; shunt FACTS compensated transmission lines; static synchronous compensator; transient simulation software; voltage 132 kV; voltage 400 kV; voltage control; Automatic voltage control; EMTDC; Generators; PSCAD; Transient analysis; Variable speed drives; FACTS devices; STATCOM; distance relay;
Conference_Titel :
Power System Technology (POWERCON), 2010 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-5938-4
DOI :
10.1109/POWERCON.2010.5666552
