Optimal location and sizing of MWand MVAR based DG units tornimprove voltage stability margin in distribution system using arnchaotic artificial bee colony algorithm

摘要

This paper presents an application of the chaotic artificial bee colony (CABC) algorithmrnto identify the optimal location and sizing of the distributed generation (DG)rnunits in order to improve the voltage stability margin in the radial distributionrnsystem. Artificial bee colony algorithm is an optimization algorithm based on thernintelligent foraging behavior of honey bee swarm. To improve the searching abilityrnof an artificial bee colony algorithm, chaos theory is united with artificial beerncolony, called the CABC algorithm. The various impact indices are used to evaluaternthe multi‐objective performance index aimed to identify the optimal location andrnsizing of combined real and reactive power–based DGs on the distribution systems.rnThe presence of DG in the distribution system has been potential to improve voltagernstability of the system. The effect of DG on the weakest bus is analyzed byrnconstructing the PV curve. The effectiveness of the proposed method is tested onrn38‐node and 69‐node radial distribution systems.