Title :
Measured impedance by distance relay with positive sequence voltage memory in presence of TCSC
Author :
Kazemi, A. ; Jamali, S. ; Shater, H.
Author_Institution :
Dept. of Electr. Eng., Iran Univ. of Sci. & Technol., Tehran
Abstract :
This paper presents the measured impedance by a distance relay with positive sequence voltage memory in the presence of thyristor controlled series compensator (TCSC), one of the series connected FACTS devices, on a transmission line. The measured impedance by distance relay is affected by the system structural conditions, pre-fault loading, and the ground fault resistance, as well as the presence of TCSC. In addition to compensation degree, TCSC installation location also affects the measured impedance. The variation of the ideal tripping characteristic due to compensation degree, and TCSC installation location would be investigated.
Keywords :
flexible AC transmission systems; power transmission protection; thyristor applications; FACTS devices; distance relay; positive sequence voltage memory; system structural conditions; thyristor controlled series compensator; Electrical resistance measurement; Impedance measurement; Power capacitors; Power system dynamics; Power system faults; Power system measurements; Power system protection; Protective relaying; Thyristors; Voltage; Distance protection; FACTS devices; Fault resistance; Measured impedance; TCSC; Voltage memory;
Conference_Titel :
Power Systems Conference and Exposition, 2009. PSCE '09. IEEE/PES
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-3810-5
Electronic_ISBN :
978-1-4244-3811-2
DOI :
10.1109/PSCE.2009.4840247
