Title :
Multiple Bad Data Identification Considering Measurement Dependencies
Author :
Caro, Eduardo ; Conejo, Antonio J. ; Mínguez, Roberto ; Zima, Marija ; Andersson, Göran
Author_Institution :
Univ. Castilla-La Mancha, Ciudad Real, Spain
Abstract :
This paper analyzes the multiple bad data originated by a gross error in any voltage or current transformer of the measurement equipment. Considering the statistical correlations among measurements, an identification algorithm based on the largest normalized residual test is specifically designed to deal with multiple bad data. Two case studies are analyzed and conclusions duly drawn.
Keywords :
current transformers; potential transformers; power system measurement; power system state estimation; current transformer; gross error; measurement dependencies; measurement equipment; multiple bad data identification; statistical correlations; voltage transformer; Algorithm design and analysis; Current measurement; Distortion measurement; Measurement uncertainty; Power measurement; State estimation; Voltage measurement; Dependent measurements; multiple bad data identification; power system state estimation;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2011.2157366
