Reliability enhancement of a radial distribution system using coordinated aggregation based particle swarm optimization considering customer and energy based indices

This paper describes an algorithm for optimum modifications for failure rate and repair time for a radial electrical distribution system. The modifications are with respect to a penalty cost function minimization. The cost function has been minimized subject to the energy based and customer oriented indices, i.e. AENS, SAIFI, SAIDI and CAIDI. Coordinated aggregation based particle swarm optimization (CAPSO) has been used for optimization. The algorithm has been implemented on a sample radial distribution system. The results obtained have been compared with those obtained using PSO.

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► Failure rate and repair time of each section of the distribution system have modified.
► The objective function reflects cost of modification.
► Cost has been minimized subject to the energy based and customer oriented indices.
► The algorithm has been implemented on a sample radial distribution system.