Title :
Voltage Inversion Due to Presence of TCSC on Adjacent Lines and Distance Relay Mal-Operation
Author :
Jamali, S. ; Kazemi, A. ; Shateri, H.
Author_Institution :
Iran Univ. of Sci. & Technol., Tehran
Abstract :
This paper discusses the distance relay over-reaching in the presence of thyristor controlled series compensator (TCSC) which is categorized as a series connected flexible alternating current transmission system (FACTS) device. This is done by presenting the measured impedance at the relaying point in the case of TCSC presence at the near end of the line behind. Distance relay tripping characteristic is greatly influenced in the presence of TCSC on the transmission line or even in the case of installation of TCSC on the adjacent lines, near end of the line behind. Distance relay tripping characteristic depends on many factors including the power system structural conditions and the pre-fault loading, the earth fault resistance, and TCSC compensation degree
Keywords :
flexible AC transmission systems; power transmission faults; power transmission lines; power transmission protection; relay protection; thyristor applications; FACTS; TCSC; adjacent line; distance relay mal-operation; fault resistance; flexible alternating current transmission system device; measured impedance; power system structural condition; relay tripping; thyristor controlled series compensator; transmission line; voltage inversion; Control systems; Flexible AC transmission systems; Impedance measurement; Power capacitors; Power transmission lines; Protective relaying; Relays; Thyristors; Transmission line measurements; Voltage; Distance relay; FACTS devices; Fault resistance; Measured impedance; TCSC;
Conference_Titel :
Universities Power Engineering Conference, 2006. UPEC '06. Proceedings of the 41st International
Conference_Location :
Newcastle-upon-Tyne
Print_ISBN :
978-186135-342-9
DOI :
10.1109/UPEC.2006.367592
