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Identification of topology errors in power system state estimation

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2 Author(s)
Costa, I.S. ; Dept. of Electr. Eng., Univ. Federal de Santa Catarina, Florianapolis, Brazil ; Leao, J.A.

This paper deals with the processing of topology errors in power system state estimation. An algorithm is proposed for determining a correlation index between symptoms of anomalies in the estimation process and measurements related to the network-elements suspected of being misconfigured. A method based on such an algorithm enables one to recognize the occurrence of topology errors in the real-time modeling process and to identify the misconfigurations. The proposed method has been tested on three different power systems, including a realistic network which is part of the Southern Brazil interconnected system, for various types of topological errors (inclusion, exclusion and bus-split errors)

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Power Systems, IEEE Transactions on  (Volume:8 ,  Issue: 4 )