In this paper a geometrical approach is described to detect, identify, and recover multiple
gross errors in power system state estimation. Using the classical WLS estimator, the …

The paper proposes a new tool for real-time assessment of measurement sets in the context
of power-system-state estimation. This tool incorporates many functions including …

In this study, the innovation approach is used to estimate the measurement total error
associated with power system state estimation. This is required because the power system …

This paper presents an efficient numerical method for observability analysis of systems
including both conventional (SCADA) measurements and synchronized phasor (PMU) …

The qualitative problems of observability analysis and identification of critical measurements
and critical sets are topics highly addressed in the literature. The analysis of such problems …

In this paper, a geometrical based-index, called undetectability index (UI), that quantifies the
inability of the traditional normalized residue test to detect single gross errors is proposed. It …

Observability analysis is a very important tool in state estimation. For a given set of
measurements and their geographical location in the system, it determines whether the state …

The linear programming technique is used to analyse the observability of power system
state estimation networks. This technique has the capability of identifying the observable …

In this paper, a topological/geometrical based approach is used to define the undetectability
index (UI), which provides the position of a measurement related to the range space of the …

This work presents a new topological methodology for critical measurements identification in
observable networks. A measurement is said to be critical, in an observability sense, if its …