Optimal Reconfiguration of Electrical Networks by Applying Tabu Search to Decrease Voltage Sag Indices

This article presents a methodology for electrical network reconfiguration to minimize voltage sags indices. The voltage sag analysis is carried out by means of an analytical method. A tabu search algorithm is implemented to find the optimal configuration in an electrical system to decrease voltage sags indices. The proposed algorithm is implemented in MATLAB (R) (The MathWorks, Natick, Massachusetts, USA). Several case studies in IEEE test systems of 57 and 118 buses are presented showing the performance of the proposed methodology.