Cuckoo Search-based Algorithm for Optimal Shunt Capacitors Allocations in Distribution Networks

In this article, a Cuckoo search optimization-based approach has been applied to allocate static shunt capacitors along radial distribution networks. The objective function is adapted to reduce the system peak losses, to support the system voltage profile, and to improve overall system power factor. Higher potential buses for capacitor placement are initially identified using a power loss index. At that moment, the proposed approach identifies optimal sizing and placement and takes the final decision for optimum location within the number of buses nominated with a minimum number of effective locations and with fewer injected VARs. The overall accuracy and performance of the proposed approach have been validated and tested on 33- and 69-bus radial distribution systems. The numerical results are compared with those obtained using recent heuristic methods, and statistical analysis proved that the problem-solving success of the cuckoo search are quite better than other heuristic methods.