Title :
A wide area protection system based on "three defensive lines" and its application in power system
Author :
Wei Cong ; Pan, Zhencun ; Ding, Lei
Author_Institution :
Sch. of Electr. Eng., Shandong Univ., China
Abstract :
A wide area protection system (WAPS) based on "three defensive lines" is proposed, which is integrated functions of relay protection, emergency control, asynchrony detection and separation in one system by utilizing wide area measurement information. The operation process of WAPS is described. The definition of relationship factor (RF) and action factor (AF) of protection IED are introduced and protection criterion based on wide area information is studied. Case study shows that this protection criterion is effective in fault location and IED failure detection.
Keywords :
fault location; power system protection; relay protection; IED failure detection; action factor; asynchrony detection; emergency control; fault location; integrated functions; power system; protection IED; protection criterion; relationship factor; relay protection; three defensive lines; wide area information; wide area measurement information; wide area protection system; Circuit faults; Local area networks; Power system control; Power system interconnection; Power system protection; Power system relaying; Power system reliability; Power systems; Protective relaying; Substations;
Conference_Titel :
Power System Technology, 2004. PowerCon 2004. 2004 International Conference on
Print_ISBN :
0-7803-8610-8
DOI :
10.1109/ICPST.2004.1460086
