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SVD Applied to Voltage Sag State Estimation
Hernández Bayo, Araceli and Espinosa-Juárez, Elisa and Castro Fernández, Rosa María de and Izzeddine Izzeddine, Mohamed
SVD Applied to Voltage Sag State Estimation.
"IEEE Transactions on Power Delivery", v. 28
The method presented in this paper addresses the problem of voltage sag state estimation (VSSE). The problem consists in estimating the voltage sags frequency at non-monitored buses from the number of sags measured at monitored sites. Usually, due to limitations on the number of available voltage sag monitors, this is an underdetermined problem. In this approach, the mathematical formulation presented is based on the fault positions concept and is solved by means of the Singular Value Decomposition (SVD) technique. The proposed estimation method has been validated by using the IEEE 118 test system and the results obtained have been very satisfactory.
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