Optimal Placement and Sizing of DGs in the Distribution System for Loss Minimization and Voltage Stability Improvement using CABC

This paper presents a chaotic artificial bee colony (CABC) algorithm for optimal placement and sizing of DGs on distribution systems with an aim of reducing the power losses and improving voltage stability. The exploitation ability of solutions to the food searching process is improved in the CABC algorithm to avoid the premature convergence of an artificial bee colony algorithm. The proposed approach determines the control variable settings such as placement and size of DG for minimization of real power loss with impact of voltage stability in the distribution system. Further, the impacts of DG on the distribution system are studied with an importance on power losses and capacity savings. The proposed approach is examined and tested on 33 bus and 69 bus radial test systems. The simulation results of the proposed approach are compared to earlier reported approaches. The simulation results show the effectiveness of the proposed approach.