Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
704172 | Electric Power Systems Research | 2009 | 5 Pages |
Abstract
In this paper, a new method based on the properties of the Gram matrix is proposed to verify the redundancy of measurements in three-phase state estimation. The Gram matrix is constructed using rows of the measurement Jacobian matrix as vectors. The method can be used for measurement systems planning or updating of three-phase networks so that the overall system remain observable even under possible branch contingencies and loss of measurements. It is a fast and robust numerical method based on the Gram matrix factorization that is easy to implement. A small numerical example that shows the application of the method is presented.
Related Topics
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Authors
Madson C. de Almeida, Eduardo N. Asada, Ariovaldo V. Garcia,