Analysis of voltage sags propagation in distribution grids using a SI epidemic model

The occurrence of different types of faults and connection of heavy loads could cause voltage sags in several busbars in distribution grids. In this paper a Susceptible-Infected (SI) epidemic model is proposed to assess the propagation of voltage sags in distribution systems. In the SI model, the in...

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Bibliographic Details
Published in2017 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA) pp. 1 - 6
Main Authors Romero-L, Miguel, Gallego, Luis
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2017
Subjects
Admittance
Diseases
Impedance
Indexes
Mathematical model
Power quality
Silicon
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Summary:The occurrence of different types of faults and connection of heavy loads could cause voltage sags in several busbars in distribution grids. In this paper a Susceptible-Infected (SI) epidemic model is proposed to assess the propagation of voltage sags in distribution systems. In the SI model, the infectious nodes are the bus-bars where faults or connection of big loads could occur. On the other hand, susceptible nodes are the bus-bars in which voltage sags could occur. Parameters that affect the voltage sags propagation as system topology and detection threshold are modeled using the concept of infection rate (β). + A directed graph representing the voltage sags propagation is calculated based on the values of β between every pair of nodes. Finally, the propagation is characterized in terms of fault impedance and nodes are classified using graph theory indexes.
DOI:10.1109/PEPQA.2017.7981685