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An Approach Based on Analytical Expressions for Optimal Location of Voltage Sags Monitors

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3 Author(s)
Espinosa-Juarez, E. ; Electr. Eng. Fac., Univ. Michoacana de San Nicolas de Hidalgo, Morelia, Mexico ; Hernandez, A. ; Olguin, G.

This paper addresses the problem of identifying the optimal location for voltage sags monitors. The proposed approach is based on using a monitor reach matrix obtained from the solution of analytical expressions which are valid for any location of faults in the power system. This method provides the optimal number of monitoring devices and the best positions to place them in order to guarantee the observability of the whole system considering any type of fault (balanced or unbalanced). That is, the location of monitors obtained by means of the proposed algorithm ensures that any event leading to a voltage sag is captured by, at least, one voltage sag monitor. Several examples are provided showing the performance of the proposed formulation compared to other approaches.

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Power Delivery, IEEE Transactions on  (Volume:24 ,  Issue: 4 )