Title :
Application of a wide area backup protection expert system to prevent cascading outages
Author :
Tan, J.C. ; Crossley, P.A. ; McLaren, P.G. ; Gale, P.F. ; Hall, I. ; Farrell, J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
fDate :
4/1/2002 12:00:00 AM
Abstract :
A strategy to prevent cascading outages in power systems is proposed in this paper. The strategy employs wide-area backup protection and artificial intelligence techniques to minimize the impact of a fault on a network. There are two ways in which wide-area backup protection can prevent cascading trips leading to a wide spread blackout: (1) precise location of a fault so that only the circuit breakers necessary to isolate the fault are tripped, and (2) avoidance of unnecessary trips, due to hidden failure or overloading, by blocking the trip signals of conventional backup protection relays. The limitations of conventional backup protection are examined and methods of improvement are presented
Keywords :
expert systems; fault location; power engineering computing; power system faults; power system protection; artificial intelligence techniques; cascading outages prevention; fault location; hidden failure; intelligent systems; overloading; power systems; unnecessary trips avoidance; wide area backup protection expert system; Circuit faults; Expert systems; Integrated circuit interconnections; Power system faults; Power system interconnection; Power system protection; Power system relaying; Power system stability; Protective relaying; Substation protection;
Journal_Title :
Power Delivery, IEEE Transactions on
