Raising reliability and reducing power loss of power distribution network by determining optimal location and size of capacitor banks

Abstract

In this context, switching capacitor has been placed to improve reliability and reduce power loss in radial distribution system. The objective function has been formulated based on minimizing power loss and improving three reliability indices, which are: Cost of Energy Not-Supplied (CENS), System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI). This problem has been optimized by Group Search Optimization (GSO) algorithm. The GSO algorithm is one of the newest and most powerful swarm intelligence techniques. Simulation has been performed on IEEE standard test system by introducing several scenarios based on the number of capacitor banks.