The Innovation Concept and a Filtering Index for Gross Error

The Innovation Concept and a Filtering Index for Gross Error

Departamento de Ingeniería Eléctrica, Electrónica, Automática y Comunicaciones
Universidad de Castilla – La Mancha
Prof. Newton G. Bretas
University of São Paulo, Brazil
The Innovation Concept and a Filtering Index for Gross Error
Composition, Detection, and Identification in Power System
State Estimation
In this presentation a topological and geometrical based approach is used to recover
the measurements masked errors in power system state estimation, and then an
approach to compose the measurement total error (CNE) is proposed. The gross error
detection test is made using the J(x) index, with the CNEs, as well as a new proposed
index, the filtering index (FI). For each measurement a threshold value in order to
declare a measurement as suspicious of having error is also proposed. With those
suspicious measurements in hands, the filtering index (FI) is used in order to identify
which of the measurements in fact have gross error. Then that measurement is
corrected using the measurement Composed Normalized Error (CNE) and another
state estimation is performed. To test the gross error detection, identification, and
correction efficiency, the classical IEEE-14 bus system will be used. Also gross errors in
the IEEE-30 bus system as well as the reduced 45-bus Power System of southern of
Brazil will be tested.
Viernes 8 de octubre de 2010, de 11:00 a 13:00
Salón de Grados, Escuela Técnica Superior de Ingenieros Industriales
Campus Universitario s/n, 13071 Ciudad Real