A power system is observable if the measurements made on it allow determination of bus voltage magnitude and angle at every bus of the network. This paper outlines the theoretical basis for anâ€¦ (More)

A power system static-state estimator has the ability to detect and purge some measurement errors. This paper develops the theoretical basis for determining the bad measurement detectabilityâ€¦ (More)

Power system state estimation is usually formulated as a weighted least-squares problem and solved iteratively by the normal equations method. The normal equations solution method is well-known toâ€¦ (More)

Measurement system failures may make it impossible for the power system state estimator to estimate bus voltage angles and magnitudes at all buses in the power system. When confronted with such aâ€¦ (More)

Measurement system failures and modeling constraints may make it impossible for the power system state estimator to estimate bus voltage magnitudes and angles at every bus in the power system fromâ€¦ (More)

This paper extends the authors' topological theory of network observability to develop an algorithm for the evaluation of the reliability of a measurement system for state estimation. Thisâ€¦ (More)

Estimating the state of a large electric power system is an ill-conditioned computational task simply because of its size. This paper describes a technique which reduces the large state estimationâ€¦ (More)