Title :
Static state estimation in electric power systems
Author :
Schweppe, Fred C. ; Handschin, Edmund J.
Author_Institution :
Massachusetts Institute of Technology, Cambridge, Mass.
fDate :
7/1/1974 12:00:00 AM
Abstract :
A static state estimator is a collection of digital computer programs which convert telemetered data into a reliable estimate of the transmission network structure and state by accounting for 1) small random metering-communication errors; 2) uncertainties in system parameter values; 3) bad data due to transients and meter-communication failures; and 4) errors in the network structure due to faulty switch-circuit breaker status information. The overall state estimation process consists of four steps: 1) hypothesize mathematical structure; 2) estimate state vector; 3) detect bad data and/or structure errors; and identify bad data and/or structure errors. The problem is characterized by high dimensionality and the need for real-time solutions using limited computer time and storage. Various methods of solution are discussed and compared.
Keywords :
Blood; Centralized control; Communication system control; Control systems; Data acquisition; Error correction; Power system reliability; Power system security; Power systems; State estimation;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1974.9549