In this article, a method for the selection of buses in a radial distribution system (RDS) to locate different types of distributed generation (DG) is proposed. The buses have been identified based on the loss sensitivity factor. Line flow constraints have been considered using the load flow program. Type-I DG, that is, solar and fuel cell and Type-III DG, that is, small hydro turbine, cogeneration, and gas turbine have been considered for the study. Determination of optimum capacity for Type-I and Type-III DGs to minimize active power losses is selected as an optimization function. Metaphor-less RAO-3 algorithm has been used to evaluate the optimum DG capacity and results have been validated with sine cosine algorithm. Results are also compared with already existing algorithms in literature like hybrid technique, novel heuristic approach, etc. The statistical inference has been provided and results obtained for IEEE-33 and -69 bus RDS using RAO-3 algorithm is found better and has fast convergence characteristic.
Cite this article as: S. Shyamkant Halve, R. Arya and A. Koshti, “Metaphor-less RAO-3 and sine cosine algorithm for optimal sizing of distributed generations of multiple types in radial distribution system,” Electrica, 23(2), 177-191, 2023.