Title :
Real-time monitoring of network topology through analog measurements
Author :
Korres, G.N. ; Katsikas, P.
Abstract :
This paper presents a method for the real-time monitoring of a power network topology. The conventional WLS state estimator is extended by incorporating the active and reactive power flows of circuit breakers as state variables. The solution of the state estimation problem is based on a reduced model depending on the status (open, closed or unknown) of circuit breakers. Observability analysis is performed based on a reduced model theory. The method is illustrated with a 12 node system
Keywords :
circuit breakers; control system analysis; least squares approximations; load flow control; matrix algebra; observability; power system control; power system state estimation; WLS state estimator; active power flows; circuit breakers; observability analysis; power system control simulation; reactive power flows; real-time network topology monitoring; reduced model; state estimation problem; state variables; Circuit breakers; Monitoring; Network topology; Noise measurement; Observability; Power system modeling; Reactive power; State estimation; Substations; Voltage;
Conference_Titel :
Power Tech Proceedings, 2001 IEEE Porto
Conference_Location :
Porto
Print_ISBN :
0-7803-7139-9
DOI :
10.1109/PTC.2001.964919
